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Join Scribe as a Senior Software Engineer focusing on Billing. In this crucial role, you will design and implement innovative billing solutions that enhance our customer experience and drive operational efficiency. Collaborate with cross-functional teams to define requirements and develop scalable software solutions that meet the needs of our growing customer base.
Join Scribe as a Senior Software Engineer focusing on Billing. In this crucial role, you will design and implement innovative billing solutions that enhance our customer experience and drive operational efficiency. Collaborate with cross-functional teams to define requirements and develop scalable software solutions that meet the needs of our growing custome…
Aura is seeking a talented and experienced Senior Software Engineer, Platform to join our innovative team. In this role, you will be responsible for designing and implementing scalable software solutions that enhance our platform capabilities. You will work closely with cross-functional teams to ensure the delivery of high-quality software that meets the needs of our users.
Full-time|$159.3K/yr - $227.6K/yr|Hybrid|San Francisco, CA (Hybrid)
About the Role: The Tubi team is dedicated to creating and refining exceptional user interfaces and experiences across our web and OTT applications. Our primary focus is on implementing features that aid in user acquisition and growth, such as user registration, onboarding, SEO optimization, and account management. As a member of this dynamic team, you will collaborate closely with Product and Design teams to innovate and develop cutting-edge, experiment-driven features that significantly enhance the user experience. Your responsibilities will encompass both front-end development and building robust technical architecture to ensure optimal performance and scalability, while continuously exploring engineering-driven features and experiments that can propel user growth. You will leverage technologies such as React, Node.js, GitHub Actions, Terraform, and CDN infrastructure to create and deploy high-performance applications that serve millions of users. This position is hybrid, based in our San Francisco office, and requires you to be present in the office three days a week.
Full-time|$190K/yr - $280K/yr|Hybrid|San Francisco, California
About SentrySentry is dedicated to eliminating poor software experiences. Our mission is to empower developers to create high-quality software swiftly, allowing everyone to enjoy technology to its fullest.With over $217 million raised in funding and a community of over 100,000 organizations, including giants like Disney, Microsoft, and Atlassian, we are developing state-of-the-art performance and error monitoring tools. Our solutions help our partners minimize time spent on bug fixes and maximize product development.In our commitment to collaboration, Sentry follows a hybrid work model across our global offices. We have designated Mondays, Tuesdays, and Thursdays as in-office days to foster effective teamwork. If you are passionate about building tools that enhance the digital experience, join us in creating the next generation of software monitoring solutions.About the RoleAt Sentry.io, we offer vital services for diagnosing application health issues. Our tools are crucial for organizations aiming to respond adeptly in dynamic markets. We ensure a seamless and enjoyable experience in the development and deployment of these tools through a robust continuous integration environment and an insightful deployment pipeline.As part of the Infrastructure Engineering team, your contributions will be instrumental in supporting Sentry's growth and enabling engineering teams to operate with agility and confidence.Your responsibilities will include designing, developing, and maintaining internal software and platform capabilities that alleviate the cognitive load associated with infrastructure and developer tooling. You will create dependable, reusable abstractions that facilitate rapid shipping of features while incorporating durability, security, and operational excellence into service development and management.This role demands strong engineering judgment: selecting reliable technologies, planning for scalability from the outset, and crafting solutions that serve multiple teams. Your focus will be on practical systems that enhance reliability and ownership across the organization, driving adoption through comprehensive documentation, well-designed APIs, and seamless developer experiences that integrate into daily workflows.Ultimately, you will empower engineering teams to flourish within a culture of ownership—enabling them to deploy, manage, and evolve services confidently while minimizing operational burdens.Key ResponsibilitiesDesign systems that scale with company growth, ensuring a balance of reliability, performance, and cost-efficiency.Develop platform services that enhance internal operations and developer productivity.
Full-time|Remote|Remote (Atlanta, Austin, San Francisco, Seattle)
About Ditto Ditto builds technology for resilient, real-time data flow at the edge. The company’s peer-to-peer synchronization engine keeps devices connected and data consistent, even when internet access is unreliable or unavailable. Organizations like Chick-fil-A, Delta Airlines, and the U.S. military use Ditto to power mission-critical experiences in aviation, retail, travel, hospitality, and defense. With over $145 million in funding, Ditto is a fast-growing, globally distributed startup committed to building a diverse and inclusive team, essential for solving tough connectivity problems in challenging environments. Role Overview: Senior Software Engineer - Autonomy (Remote) This Senior Software Engineer role focuses on autonomy and field deployment. As a Forward Deployed Engineer, work directly with key users to integrate Ditto’s platform into operational environments, especially where robotics and real-time data are essential. The position calls for adaptable engineers who can quickly solve complex technical challenges and reduce the time it takes for customers to realize value from Ditto’s software. Expect to collaborate closely with both users and Ditto’s core product engineering team, relaying technical feedback and feature requests. The work often involves ambiguity, rapid troubleshooting, and direct involvement in field testing. Key Responsibilities Integrate with Robotic Platforms: Lead on-site software integration with unmanned ground, aerial, and maritime systems. Establish reliable data connections between Ditto’s synchronization layer and various robotic autonomy stacks. Develop on ROS2 and DDS Middleware: Design, build, and debug software nodes within ROS2 frameworks. Use DDS (Data Distribution Service) for real-time, publish-subscribe communication between robotic subsystems and Ditto’s platform. Implement MAVLink Integrations: Create and refine MAVLink-based communication channels for telemetry, command, and control of unmanned aerial systems. Ensure dependable data transfer between Ditto’s platform and autopilot firmware. Solve Problems in Real-Time: Act as the first line of technical support during field testing. Diagnose and resolve software, sensor, and communication issues on robotic platforms as they arise. Location Remote. Candidates in Atlanta, Austin, San Francisco, or Seattle are encouraged to apply.
Full-time|$170K/yr - $240K/yr|On-site|San Francisco, CA
Role Overview Sigma Computing builds a high-performance data platform aimed at making data accessible and useful. The engineering team focuses on modern data architecture and delivers features that help organizations explore and analyze data efficiently. As the team grows in San Francisco, Sigma is looking for a Senior Backend Software Engineer who enjoys solving complex problems and contributing to a product used by a wide range of users. What You Will Do Tackle challenging problems related to providing interactive experiences on data warehouses for exploration and analysis. Work with technologies including Rust, Go, GraphQL, Node, and Kubernetes. Build backend distributed services, design algorithms, and create APIs for a cloud-based application. Debug, track, and resolve product or system issues as they arise. Design and implement new backend features to support a growing user base. Participate in design and code reviews with teammates and stakeholders to maintain high standards and share knowledge. Location This position is based in San Francisco, CA.
Role overview retell-ai seeks a Senior Software Engineer in the San Francisco Bay Area to focus on Go-To-Market (GTM) projects. This engineer will help shape how new products are created and introduced to customers, directly influencing the company’s approach to launching and scaling offerings. What you will do Collaborate with teams across the organization to translate business needs into software that advances GTM objectives. Develop and improve products to ensure they fit seamlessly into the market. Uphold high standards for code quality and system performance as products grow and change. Collaboration This position works closely with product, business, and engineering partners to deliver solutions that address both technical and market demands.
Full-time|$153K/yr - $248.5K/yr|On-site|San Francisco, California, United States
About Redwood MaterialsRedwood Materials is pioneering the localization of a global battery supply chain, integrating recovery, reuse, and recycling to keep critical minerals in circulation and facilitate the energy transition. Established in 2017, we are committed to providing low-cost, large-scale energy storage solutions and producing battery materials in the U.S. for the first time, utilizing batteries that are already in existence.Position Overview: Software Technical Program Manager - Energy StorageRedwood Materials is actively seeking a Technical Program Manager to become an integral part of our innovative engineering team focused on our Battery Energy Storage System product line. In this role, you will oversee the development of software, embedded firmware, and systems controls, ensuring the successful execution of projects from inception through completion.
Full-time|On-site|San Francisco, CA; Sunnyvale, CA; Seattle, WA
Join our innovative team at DoorDash as a Senior Staff Software Engineer focused on Search. In this role, you'll play a key part in enhancing our search infrastructure, building scalable solutions, and driving impactful results that influence millions of users. You will collaborate with cross-functional teams to advance our technology stack and improve the overall user experience.
About UsXOXO AI is an innovative research laboratory dedicated to shaping the future of intelligence for everyday life. Our dynamic team of skilled engineers, designers, and researchers is committed to discovering transformative solutions for challenges that extend beyond the workplace.Following a significant breakthrough in infrastructure, architecture, and model layers, we are on the lookout for dedicated builders to develop the interface and application layer that will actualize our visionary goals.About the RoleWe are seeking a seasoned Security Engineer to safeguard our systems and uphold user trust. Your role will involve fortifying our cloud infrastructure, enforcing access restrictions, and establishing tools and response mechanisms that ensure security as we scale. Collaborating with the founders and our engineering team, you will embed security as a fundamental principle in our development processes.What You’ll DoCollaborate with engineering, product, and research teams to integrate security throughout the development lifecycle, including threat modeling, design reviews, and secure defaults.Strengthen cloud infrastructure and enforce network topology standards such as subnets, firewalls, routing, and organizational security policies.Implement isolation and segmentation strategies to limit potential damage and prevent lateral movement.Develop and maintain security tools and automation for engineers, including CI/CD checks, scanning, and guardrails, driving findings to remediation.Enhance observability, detection, and incident response for security-related events such as intrusions, abuse patterns, DDoS attacks, and bots, ensuring rapid containment.Design and manage identity and access management systems for both users and services, alongside third-party integration controls, prioritizing private connectivity and the principle of least privilege.
About UsAt Imprint, we are revolutionizing the world of co-branded credit cards and innovative financial solutions, focusing on smarter, more rewarding, and brand-first experiences. We collaborate with renowned brands such as Crate & Barrel, Rakuten, Booking.com, H-E-B, Fetch, and Brooks Brothers to establish modern credit programs that enhance customer loyalty, unlock savings, and stimulate growth. Our robust platform integrates advanced payment technologies, intelligent underwriting, and a seamless user experience, enabling brands to offer impactful financial products without the complexities of becoming a bank.Co-branded credit cards represent over $300 billion in U.S. annual spending, yet many are still managed by outdated banking systems. Imprint stands as the modern alternative—flexible, technology-driven, and tailored for today’s consumers. Supported by notable investors like Kleiner Perkins, Thrive Capital, and Khosla Ventures, we are assembling a world-class team dedicated to reshaping payment methods and driving brand growth. If you thrive in fast-paced environments, enjoy tackling complex challenges, and aspire to make a significant impact, we would be delighted to meet you.Discover more about us on Imprint's Technology Blog.The TeamThe Tech Platform Engineering Team at Imprint is pioneering the democratization of access to advanced technologies, empowering teams across our organization to innovate and excel. Our commitment to redefining the Fintech landscape drives us to build secure, highly available infrastructures while equipping our engineers with comprehensive development tools, allowing them to rapidly create world-class products.Your RoleDesign, build, and manage cloud and web infrastructure with a strong emphasis on security, reliability, and scalability.Implement and maintain infrastructure components across computing, networking, and data platforms.Adhere to security best practices in cloud infrastructure, ensuring proper access control, network isolation, and secure communication between services.Monitor system health and engage in incident response, root cause analysis, and reliability enhancements.Collaborate with platform, security, and product engineers to deliver safe and efficient infrastructure solutions.
Full-time|$190.8K/yr - $267.1K/yr|On-site|San Francisco, CA
Join Reddit's Test Engineering team as a Senior Software Engineer, where you will play a pivotal role in ensuring the highest quality of software features. Collaborate with cross-functional teams to design and implement robust test automation frameworks and tools, while fostering a culture of quality across all engineering initiatives. Your expertise will help identify testing gaps and drive systemic improvements, enhancing our testing processes and infrastructure stability.
About Lumafield: Established in 2019, Lumafield has pioneered the development of the world's first accessible X-Ray CT scanner specifically designed for engineers. Our intuitive scanner, combined with cloud-based software, empowers engineers to gain unparalleled insights into their projects at a remarkably affordable cost. Engineers face high-stakes decisions daily, necessitating tools that provide maximum visibility into their designs. By delivering exceptional product clarity and AI-enhanced tools that identify issues and produce quantitative insights, Lumafield is set to transform the creation, manufacturing, and application of complex products across various sectors. Our company thrives on impact and is dedicated to delivering the utmost value to our customers, ensuring their needs drive our development. Our talented team consists of leading researchers, industrial designers, PhD holders, innovators, and startup founders, all working collaboratively without egos. We proudly receive backing from prestigious venture capital firms, including Kleiner Perkins, Lux Capital, DCVC, and Spark Capital.Headquartered in Cambridge, MA, with an additional office in San Francisco, CA, we are excited to grow our team.About the Role: As a Senior Systems Software Engineer at Lumafield, you will be instrumental in developing the software that drives our cutting-edge, in-line manufacturing CT scanning products. You will engage with state-of-the-art X-ray physics, high-speed detectors, image processing, and embedded systems. Collaborating within a small team focused on our latest hardware, you will harness your expertise to maximize system performance and achieve outstanding results for our clients. This position is perfect for those eager to take ownership of embedded systems, firmware, and software design in an early-stage product environment. This role is based in our San Francisco, CA office, with occasional travel required to our Cambridge, MA office.
Join Cloudflare as an Engineering Manager for the R2 Storage team, where you'll lead a dynamic group of engineers dedicated to building and enhancing our innovative storage solutions. This role offers an exciting opportunity to shape the future of data storage while collaborating with talented individuals in a hybrid work environment.As a vital member of our team, you will oversee project development from conception to deployment, ensuring high-quality standards and timely delivery. You will also mentor engineers, foster a culture of continuous improvement, and drive technical excellence within the team.
Full-time|$155K/yr - $245K/yr|On-site|San Francisco, California, United States
About Redwood MaterialsRedwood is pioneering a localized battery supply chain that integrates recovery, reuse, and recycling — ensuring critical minerals circulate effectively and facilitating the energy transition. Established in 2017, we are committed to providing cost-effective, large-scale energy storage solutions while producing battery materials domestically for the first time, leveraging existing batteries.Project Engineer, Energy StoragePosition Overview:Redwood Materials is seeking a passionate Project Engineer to become a foundational member of our new engineering team focusing on our Battery Energy Storage System product line. You will oversee the entire project lifecycle, from commercial scoping and business development handoff, through engineering, procurement, construction, commissioning, and structured transition to Operations and Maintenance, managing a diverse portfolio of utility-scale and behind-the-meter storage projects.As a vital link between Business Development, Product Engineering, EPC partners, and clients, you will drive project timelines, manage risks, and ensure successful delivery of every project within schedule, budget, and specifications.The ideal candidate is self-motivated, adaptable to a startup environment, and thrives in a setting where processes are being developed. You are a proactive builder who is excited about contributing to a dynamic and fast-paced environment, and you want to help shape how Redwood executes energy storage projects at scale.Key Responsibilities:Lead comprehensive project execution from requirement definition and business development handoff through engineering, procurement, construction, commissioning, and transition to operations and maintenance.Foster collaboration across teams, ensuring clear communication and alignment on project objectives, risks, and schedules.Implement project management best practices to enhance efficiency and effectiveness across project stages.Continuously monitor project progress and make adjustments as necessary to meet performance targets.
Join Sysdig as a Senior Software Engineer specializing in Runtime. In this role, you'll be at the forefront of developing innovative solutions that enhance our runtime security and monitoring products.You'll collaborate with a dynamic team, leveraging cutting-edge technologies to tackle complex challenges. We are looking for passionate engineers who thrive in a fast-paced environment and are eager to make a significant impact.
Join Cloudflare as a Senior Software Engineer in our Registrar team, where you'll be at the forefront of developing innovative solutions for domain registration services. This role offers you the opportunity to leverage your expertise in software development to enhance our platform's performance and scalability, ensuring a seamless experience for our customers.
About Us:At Lunar, we are a pioneering technology company dedicated to reshaping the healthcare landscape through our innovative software platform tailored for health systems. Our mission revolves around harnessing advanced AI technology to empower hospitals to provide exceptional care to their patients. Our platform serves as the essential backbone for health systems, significantly enhancing clinical and operational workflows with the world’s first AI-native hospital information system.This revolutionary platform is a comprehensive overhaul of the information architecture that supports health systems. From medical professionals to patients, our software seamlessly integrates every aspect of healthcare operations. We perceive this endeavor as the moon landing of healthcare—an ambitious goal that many deem unattainable.Supported by top-tier venture capital firms in Silicon Valley, we are firm believers in the strength of a compact, high-caliber team of experienced professionals who excel at their craft. We appreciate individuals who are motivated, inquisitive, possess sound judgment, and are committed to delivering their best work.Our technology stack runs on Elixir, chosen for its fault tolerance, concurrency, and scalability—key attributes for managing real-time patient data in critical environments such as Emergency Departments, ICUs, and Operating Rooms.We are actively seeking a Senior Software Engineer who is eager to address some of the most challenging technical issues in healthcare, while working alongside a small, agile, and mission-focused team. If you are passionate about crafting clean, resilient code and aspire to reinvent the software infrastructure of modern hospitals, we want to hear from you.Here are some complex technical challenges you might encounter within your first 6 months:Creating a modern cloud architecture from the ground up: With no legacy systems to manage, we are building a modern cloud-native platform centered around Elixir.Designing an advanced access control system for clinical data: Develop a sophisticated access control system with detailed permissions that honors clinical data structures and patient data ownership while facilitating population-level insights for improved public health.Ensuring 24/7 hospital uptime: Engineer and deploy infrastructure capable of supporting rolling deployments, failovers, and continuous availability.
Full-time|Remote|San Francisco, CA, New York, NY, Portland, OR, or Remote within Canada or United States
Role Overview Mercury is looking for a Senior Software Engineer focused on Stability. This role centers on strengthening the reliability and scalability of Mercury’s software systems. The work spans identifying weak points, resolving issues, and driving improvements across the stack. What You Will Do Work closely with teams across engineering, product, and operations to spot and address stability risks Troubleshoot and resolve software issues affecting system reliability Design and implement solutions that improve overall system performance and resilience Location This position is open to candidates based in San Francisco, CA, New York, NY, Portland, OR, or remote within Canada or the United States.
Founded in 2007, Airbnb has transformed the way people travel, connecting over 5 million hosts with more than 2 billion guests worldwide. Our platform offers unique stays and experiences, allowing guests to immerse themselves in local communities and cultures.The Community You Will Join:At Airbnb, our Host and Guest communities are the heart of our operations. The Reputation team plays a crucial role in maintaining trust within our platform, overseeing all aspects of user reputation, including reviews, Superhost recognition, and standards enforcement. Our responsibilities encompass:Reviews: We facilitate accountability between guests and hosts through a robust review system, relying on user-generated data to refine our review processes.Superhost: This program acknowledges and rewards exceptional hosts who consistently provide outstanding experiences for guests.Standards: Trust is foundational at Airbnb; our team is dedicated to educating hosts and enforcing standards in response to negative feedback.Insights: Leveraging data effectively, we empower hosts with actionable insights about their performance and opportunities for improvement.The Difference You Will Make:We are looking for a passionate, talented engineer ready to make a significant impact. As part of the reputation team, you will enhance how we collect and manage review data. Our mission is to modularize our systems and create a comprehensive review platform that extends beyond our current marketplace. You will play a key role in shaping the future of the Reviews space at Airbnb, with opportunities to engage in diverse projects across different layers of the stack.
Join Scribe as a Senior Software Engineer focusing on Billing. In this crucial role, you will design and implement innovative billing solutions that enhance our customer experience and drive operational efficiency. Collaborate with cross-functional teams to define requirements and develop scalable software solutions that meet the needs of our growing custome…
Aura is seeking a talented and experienced Senior Software Engineer, Platform to join our innovative team. In this role, you will be responsible for designing and implementing scalable software solutions that enhance our platform capabilities. You will work closely with cross-functional teams to ensure the delivery of high-quality software that meets the needs of our users.
Full-time|$159.3K/yr - $227.6K/yr|Hybrid|San Francisco, CA (Hybrid)
About the Role: The Tubi team is dedicated to creating and refining exceptional user interfaces and experiences across our web and OTT applications. Our primary focus is on implementing features that aid in user acquisition and growth, such as user registration, onboarding, SEO optimization, and account management. As a member of this dynamic team, you will collaborate closely with Product and Design teams to innovate and develop cutting-edge, experiment-driven features that significantly enhance the user experience. Your responsibilities will encompass both front-end development and building robust technical architecture to ensure optimal performance and scalability, while continuously exploring engineering-driven features and experiments that can propel user growth. You will leverage technologies such as React, Node.js, GitHub Actions, Terraform, and CDN infrastructure to create and deploy high-performance applications that serve millions of users. This position is hybrid, based in our San Francisco office, and requires you to be present in the office three days a week.
Full-time|$190K/yr - $280K/yr|Hybrid|San Francisco, California
About SentrySentry is dedicated to eliminating poor software experiences. Our mission is to empower developers to create high-quality software swiftly, allowing everyone to enjoy technology to its fullest.With over $217 million raised in funding and a community of over 100,000 organizations, including giants like Disney, Microsoft, and Atlassian, we are developing state-of-the-art performance and error monitoring tools. Our solutions help our partners minimize time spent on bug fixes and maximize product development.In our commitment to collaboration, Sentry follows a hybrid work model across our global offices. We have designated Mondays, Tuesdays, and Thursdays as in-office days to foster effective teamwork. If you are passionate about building tools that enhance the digital experience, join us in creating the next generation of software monitoring solutions.About the RoleAt Sentry.io, we offer vital services for diagnosing application health issues. Our tools are crucial for organizations aiming to respond adeptly in dynamic markets. We ensure a seamless and enjoyable experience in the development and deployment of these tools through a robust continuous integration environment and an insightful deployment pipeline.As part of the Infrastructure Engineering team, your contributions will be instrumental in supporting Sentry's growth and enabling engineering teams to operate with agility and confidence.Your responsibilities will include designing, developing, and maintaining internal software and platform capabilities that alleviate the cognitive load associated with infrastructure and developer tooling. You will create dependable, reusable abstractions that facilitate rapid shipping of features while incorporating durability, security, and operational excellence into service development and management.This role demands strong engineering judgment: selecting reliable technologies, planning for scalability from the outset, and crafting solutions that serve multiple teams. Your focus will be on practical systems that enhance reliability and ownership across the organization, driving adoption through comprehensive documentation, well-designed APIs, and seamless developer experiences that integrate into daily workflows.Ultimately, you will empower engineering teams to flourish within a culture of ownership—enabling them to deploy, manage, and evolve services confidently while minimizing operational burdens.Key ResponsibilitiesDesign systems that scale with company growth, ensuring a balance of reliability, performance, and cost-efficiency.Develop platform services that enhance internal operations and developer productivity.
Full-time|Remote|Remote (Atlanta, Austin, San Francisco, Seattle)
About Ditto Ditto builds technology for resilient, real-time data flow at the edge. The company’s peer-to-peer synchronization engine keeps devices connected and data consistent, even when internet access is unreliable or unavailable. Organizations like Chick-fil-A, Delta Airlines, and the U.S. military use Ditto to power mission-critical experiences in aviation, retail, travel, hospitality, and defense. With over $145 million in funding, Ditto is a fast-growing, globally distributed startup committed to building a diverse and inclusive team, essential for solving tough connectivity problems in challenging environments. Role Overview: Senior Software Engineer - Autonomy (Remote) This Senior Software Engineer role focuses on autonomy and field deployment. As a Forward Deployed Engineer, work directly with key users to integrate Ditto’s platform into operational environments, especially where robotics and real-time data are essential. The position calls for adaptable engineers who can quickly solve complex technical challenges and reduce the time it takes for customers to realize value from Ditto’s software. Expect to collaborate closely with both users and Ditto’s core product engineering team, relaying technical feedback and feature requests. The work often involves ambiguity, rapid troubleshooting, and direct involvement in field testing. Key Responsibilities Integrate with Robotic Platforms: Lead on-site software integration with unmanned ground, aerial, and maritime systems. Establish reliable data connections between Ditto’s synchronization layer and various robotic autonomy stacks. Develop on ROS2 and DDS Middleware: Design, build, and debug software nodes within ROS2 frameworks. Use DDS (Data Distribution Service) for real-time, publish-subscribe communication between robotic subsystems and Ditto’s platform. Implement MAVLink Integrations: Create and refine MAVLink-based communication channels for telemetry, command, and control of unmanned aerial systems. Ensure dependable data transfer between Ditto’s platform and autopilot firmware. Solve Problems in Real-Time: Act as the first line of technical support during field testing. Diagnose and resolve software, sensor, and communication issues on robotic platforms as they arise. Location Remote. Candidates in Atlanta, Austin, San Francisco, or Seattle are encouraged to apply.
Full-time|$170K/yr - $240K/yr|On-site|San Francisco, CA
Role Overview Sigma Computing builds a high-performance data platform aimed at making data accessible and useful. The engineering team focuses on modern data architecture and delivers features that help organizations explore and analyze data efficiently. As the team grows in San Francisco, Sigma is looking for a Senior Backend Software Engineer who enjoys solving complex problems and contributing to a product used by a wide range of users. What You Will Do Tackle challenging problems related to providing interactive experiences on data warehouses for exploration and analysis. Work with technologies including Rust, Go, GraphQL, Node, and Kubernetes. Build backend distributed services, design algorithms, and create APIs for a cloud-based application. Debug, track, and resolve product or system issues as they arise. Design and implement new backend features to support a growing user base. Participate in design and code reviews with teammates and stakeholders to maintain high standards and share knowledge. Location This position is based in San Francisco, CA.
Role overview retell-ai seeks a Senior Software Engineer in the San Francisco Bay Area to focus on Go-To-Market (GTM) projects. This engineer will help shape how new products are created and introduced to customers, directly influencing the company’s approach to launching and scaling offerings. What you will do Collaborate with teams across the organization to translate business needs into software that advances GTM objectives. Develop and improve products to ensure they fit seamlessly into the market. Uphold high standards for code quality and system performance as products grow and change. Collaboration This position works closely with product, business, and engineering partners to deliver solutions that address both technical and market demands.
Full-time|$153K/yr - $248.5K/yr|On-site|San Francisco, California, United States
About Redwood MaterialsRedwood Materials is pioneering the localization of a global battery supply chain, integrating recovery, reuse, and recycling to keep critical minerals in circulation and facilitate the energy transition. Established in 2017, we are committed to providing low-cost, large-scale energy storage solutions and producing battery materials in the U.S. for the first time, utilizing batteries that are already in existence.Position Overview: Software Technical Program Manager - Energy StorageRedwood Materials is actively seeking a Technical Program Manager to become an integral part of our innovative engineering team focused on our Battery Energy Storage System product line. In this role, you will oversee the development of software, embedded firmware, and systems controls, ensuring the successful execution of projects from inception through completion.
Full-time|On-site|San Francisco, CA; Sunnyvale, CA; Seattle, WA
Join our innovative team at DoorDash as a Senior Staff Software Engineer focused on Search. In this role, you'll play a key part in enhancing our search infrastructure, building scalable solutions, and driving impactful results that influence millions of users. You will collaborate with cross-functional teams to advance our technology stack and improve the overall user experience.
About UsXOXO AI is an innovative research laboratory dedicated to shaping the future of intelligence for everyday life. Our dynamic team of skilled engineers, designers, and researchers is committed to discovering transformative solutions for challenges that extend beyond the workplace.Following a significant breakthrough in infrastructure, architecture, and model layers, we are on the lookout for dedicated builders to develop the interface and application layer that will actualize our visionary goals.About the RoleWe are seeking a seasoned Security Engineer to safeguard our systems and uphold user trust. Your role will involve fortifying our cloud infrastructure, enforcing access restrictions, and establishing tools and response mechanisms that ensure security as we scale. Collaborating with the founders and our engineering team, you will embed security as a fundamental principle in our development processes.What You’ll DoCollaborate with engineering, product, and research teams to integrate security throughout the development lifecycle, including threat modeling, design reviews, and secure defaults.Strengthen cloud infrastructure and enforce network topology standards such as subnets, firewalls, routing, and organizational security policies.Implement isolation and segmentation strategies to limit potential damage and prevent lateral movement.Develop and maintain security tools and automation for engineers, including CI/CD checks, scanning, and guardrails, driving findings to remediation.Enhance observability, detection, and incident response for security-related events such as intrusions, abuse patterns, DDoS attacks, and bots, ensuring rapid containment.Design and manage identity and access management systems for both users and services, alongside third-party integration controls, prioritizing private connectivity and the principle of least privilege.
About UsAt Imprint, we are revolutionizing the world of co-branded credit cards and innovative financial solutions, focusing on smarter, more rewarding, and brand-first experiences. We collaborate with renowned brands such as Crate & Barrel, Rakuten, Booking.com, H-E-B, Fetch, and Brooks Brothers to establish modern credit programs that enhance customer loyalty, unlock savings, and stimulate growth. Our robust platform integrates advanced payment technologies, intelligent underwriting, and a seamless user experience, enabling brands to offer impactful financial products without the complexities of becoming a bank.Co-branded credit cards represent over $300 billion in U.S. annual spending, yet many are still managed by outdated banking systems. Imprint stands as the modern alternative—flexible, technology-driven, and tailored for today’s consumers. Supported by notable investors like Kleiner Perkins, Thrive Capital, and Khosla Ventures, we are assembling a world-class team dedicated to reshaping payment methods and driving brand growth. If you thrive in fast-paced environments, enjoy tackling complex challenges, and aspire to make a significant impact, we would be delighted to meet you.Discover more about us on Imprint's Technology Blog.The TeamThe Tech Platform Engineering Team at Imprint is pioneering the democratization of access to advanced technologies, empowering teams across our organization to innovate and excel. Our commitment to redefining the Fintech landscape drives us to build secure, highly available infrastructures while equipping our engineers with comprehensive development tools, allowing them to rapidly create world-class products.Your RoleDesign, build, and manage cloud and web infrastructure with a strong emphasis on security, reliability, and scalability.Implement and maintain infrastructure components across computing, networking, and data platforms.Adhere to security best practices in cloud infrastructure, ensuring proper access control, network isolation, and secure communication between services.Monitor system health and engage in incident response, root cause analysis, and reliability enhancements.Collaborate with platform, security, and product engineers to deliver safe and efficient infrastructure solutions.
Full-time|$190.8K/yr - $267.1K/yr|On-site|San Francisco, CA
Join Reddit's Test Engineering team as a Senior Software Engineer, where you will play a pivotal role in ensuring the highest quality of software features. Collaborate with cross-functional teams to design and implement robust test automation frameworks and tools, while fostering a culture of quality across all engineering initiatives. Your expertise will help identify testing gaps and drive systemic improvements, enhancing our testing processes and infrastructure stability.
About Lumafield: Established in 2019, Lumafield has pioneered the development of the world's first accessible X-Ray CT scanner specifically designed for engineers. Our intuitive scanner, combined with cloud-based software, empowers engineers to gain unparalleled insights into their projects at a remarkably affordable cost. Engineers face high-stakes decisions daily, necessitating tools that provide maximum visibility into their designs. By delivering exceptional product clarity and AI-enhanced tools that identify issues and produce quantitative insights, Lumafield is set to transform the creation, manufacturing, and application of complex products across various sectors. Our company thrives on impact and is dedicated to delivering the utmost value to our customers, ensuring their needs drive our development. Our talented team consists of leading researchers, industrial designers, PhD holders, innovators, and startup founders, all working collaboratively without egos. We proudly receive backing from prestigious venture capital firms, including Kleiner Perkins, Lux Capital, DCVC, and Spark Capital.Headquartered in Cambridge, MA, with an additional office in San Francisco, CA, we are excited to grow our team.About the Role: As a Senior Systems Software Engineer at Lumafield, you will be instrumental in developing the software that drives our cutting-edge, in-line manufacturing CT scanning products. You will engage with state-of-the-art X-ray physics, high-speed detectors, image processing, and embedded systems. Collaborating within a small team focused on our latest hardware, you will harness your expertise to maximize system performance and achieve outstanding results for our clients. This position is perfect for those eager to take ownership of embedded systems, firmware, and software design in an early-stage product environment. This role is based in our San Francisco, CA office, with occasional travel required to our Cambridge, MA office.
Join Cloudflare as an Engineering Manager for the R2 Storage team, where you'll lead a dynamic group of engineers dedicated to building and enhancing our innovative storage solutions. This role offers an exciting opportunity to shape the future of data storage while collaborating with talented individuals in a hybrid work environment.As a vital member of our team, you will oversee project development from conception to deployment, ensuring high-quality standards and timely delivery. You will also mentor engineers, foster a culture of continuous improvement, and drive technical excellence within the team.
Full-time|$155K/yr - $245K/yr|On-site|San Francisco, California, United States
About Redwood MaterialsRedwood is pioneering a localized battery supply chain that integrates recovery, reuse, and recycling — ensuring critical minerals circulate effectively and facilitating the energy transition. Established in 2017, we are committed to providing cost-effective, large-scale energy storage solutions while producing battery materials domestically for the first time, leveraging existing batteries.Project Engineer, Energy StoragePosition Overview:Redwood Materials is seeking a passionate Project Engineer to become a foundational member of our new engineering team focusing on our Battery Energy Storage System product line. You will oversee the entire project lifecycle, from commercial scoping and business development handoff, through engineering, procurement, construction, commissioning, and structured transition to Operations and Maintenance, managing a diverse portfolio of utility-scale and behind-the-meter storage projects.As a vital link between Business Development, Product Engineering, EPC partners, and clients, you will drive project timelines, manage risks, and ensure successful delivery of every project within schedule, budget, and specifications.The ideal candidate is self-motivated, adaptable to a startup environment, and thrives in a setting where processes are being developed. You are a proactive builder who is excited about contributing to a dynamic and fast-paced environment, and you want to help shape how Redwood executes energy storage projects at scale.Key Responsibilities:Lead comprehensive project execution from requirement definition and business development handoff through engineering, procurement, construction, commissioning, and transition to operations and maintenance.Foster collaboration across teams, ensuring clear communication and alignment on project objectives, risks, and schedules.Implement project management best practices to enhance efficiency and effectiveness across project stages.Continuously monitor project progress and make adjustments as necessary to meet performance targets.
Join Sysdig as a Senior Software Engineer specializing in Runtime. In this role, you'll be at the forefront of developing innovative solutions that enhance our runtime security and monitoring products.You'll collaborate with a dynamic team, leveraging cutting-edge technologies to tackle complex challenges. We are looking for passionate engineers who thrive in a fast-paced environment and are eager to make a significant impact.
Join Cloudflare as a Senior Software Engineer in our Registrar team, where you'll be at the forefront of developing innovative solutions for domain registration services. This role offers you the opportunity to leverage your expertise in software development to enhance our platform's performance and scalability, ensuring a seamless experience for our customers.
About Us:At Lunar, we are a pioneering technology company dedicated to reshaping the healthcare landscape through our innovative software platform tailored for health systems. Our mission revolves around harnessing advanced AI technology to empower hospitals to provide exceptional care to their patients. Our platform serves as the essential backbone for health systems, significantly enhancing clinical and operational workflows with the world’s first AI-native hospital information system.This revolutionary platform is a comprehensive overhaul of the information architecture that supports health systems. From medical professionals to patients, our software seamlessly integrates every aspect of healthcare operations. We perceive this endeavor as the moon landing of healthcare—an ambitious goal that many deem unattainable.Supported by top-tier venture capital firms in Silicon Valley, we are firm believers in the strength of a compact, high-caliber team of experienced professionals who excel at their craft. We appreciate individuals who are motivated, inquisitive, possess sound judgment, and are committed to delivering their best work.Our technology stack runs on Elixir, chosen for its fault tolerance, concurrency, and scalability—key attributes for managing real-time patient data in critical environments such as Emergency Departments, ICUs, and Operating Rooms.We are actively seeking a Senior Software Engineer who is eager to address some of the most challenging technical issues in healthcare, while working alongside a small, agile, and mission-focused team. If you are passionate about crafting clean, resilient code and aspire to reinvent the software infrastructure of modern hospitals, we want to hear from you.Here are some complex technical challenges you might encounter within your first 6 months:Creating a modern cloud architecture from the ground up: With no legacy systems to manage, we are building a modern cloud-native platform centered around Elixir.Designing an advanced access control system for clinical data: Develop a sophisticated access control system with detailed permissions that honors clinical data structures and patient data ownership while facilitating population-level insights for improved public health.Ensuring 24/7 hospital uptime: Engineer and deploy infrastructure capable of supporting rolling deployments, failovers, and continuous availability.
Full-time|Remote|San Francisco, CA, New York, NY, Portland, OR, or Remote within Canada or United States
Role Overview Mercury is looking for a Senior Software Engineer focused on Stability. This role centers on strengthening the reliability and scalability of Mercury’s software systems. The work spans identifying weak points, resolving issues, and driving improvements across the stack. What You Will Do Work closely with teams across engineering, product, and operations to spot and address stability risks Troubleshoot and resolve software issues affecting system reliability Design and implement solutions that improve overall system performance and resilience Location This position is open to candidates based in San Francisco, CA, New York, NY, Portland, OR, or remote within Canada or the United States.
Founded in 2007, Airbnb has transformed the way people travel, connecting over 5 million hosts with more than 2 billion guests worldwide. Our platform offers unique stays and experiences, allowing guests to immerse themselves in local communities and cultures.The Community You Will Join:At Airbnb, our Host and Guest communities are the heart of our operations. The Reputation team plays a crucial role in maintaining trust within our platform, overseeing all aspects of user reputation, including reviews, Superhost recognition, and standards enforcement. Our responsibilities encompass:Reviews: We facilitate accountability between guests and hosts through a robust review system, relying on user-generated data to refine our review processes.Superhost: This program acknowledges and rewards exceptional hosts who consistently provide outstanding experiences for guests.Standards: Trust is foundational at Airbnb; our team is dedicated to educating hosts and enforcing standards in response to negative feedback.Insights: Leveraging data effectively, we empower hosts with actionable insights about their performance and opportunities for improvement.The Difference You Will Make:We are looking for a passionate, talented engineer ready to make a significant impact. As part of the reputation team, you will enhance how we collect and manage review data. Our mission is to modularize our systems and create a comprehensive review platform that extends beyond our current marketplace. You will play a key role in shaping the future of the Reviews space at Airbnb, with opportunities to engage in diverse projects across different layers of the stack.