Senior Backend Software Engineer

Join Pinterest as a Senior Backend Software Engineer, where you'll be part of a dynamic team dedicated to building innovative solutions that enhance user experiences. We are looking for a passionate engineer with a strong background in backend development, who thrives in a fast-paced environment and is eager to tackle complex technical challenges.

The Trade Desk is a leading global technology company dedicated to fostering a better, more open internet for everyone through principled, intelligent advertising. With the capability to handle over 1 trillion queries daily, our platform operates at an unparalleled scale. We pride ourselves on our award-winning culture, built on the foundations of trust, ownership, empathy, and collaboration. We appreciate the unique experiences and perspectives that every individual brings to The Trade Desk, and we are committed to creating inclusive spaces where everyone can express their authentic selves at work. If you are passionate about solving complex problems at scale and are eager to join a dynamic, globally-connected team where your contributions will significantly impact the media ecosystem, we invite you to explore why Fortune magazine consistently ranks The Trade Desk among the top small to medium-sized workplaces worldwide. As a Senior Software Engineer, you will have end-to-end ownership, allowing you to engage in various facets of designing, building, and delivering data-centric products for our stakeholders. At The Trade Desk, we focus on constructing the back-end infrastructure of our platform with an unwavering commitment to quality at scale. Whether developing components for our client-facing applications, crafting internal custom solutions for our teams, or building model pipelines for bidding optimizations, we ensure that the infrastructure, development processes, and tools empower us to execute efficiently. Our systems operate continuously, serving global traffic, and we collaborate in a highly cooperative environment while leveraging a diverse array of technologies. Our back-end developers tackle algorithmic, optimization, and scalability challenges across all our initiatives.

Join Cloudflare as a Principal Software Engineer specializing in Resiliency, where you will play a pivotal role in enhancing our systems' robustness and availability. Your expertise will contribute to building and maintaining resilient infrastructure that supports our global network, ensuring our customers receive uninterrupted service.In this role, you will work alongside a talented team of engineers to identify vulnerabilities, implement solutions, and innovate new strategies that enhance system performance and reliability. If you are passionate about software engineering and system resiliency, we invite you to apply!

Merge stands at the forefront of innovation, delivering cutting-edge tools and customer-centric integrations tailored for emerging LLMs, Fortune 500 corporations, and B2B SaaS enterprises. Our platform encompasses two primary offerings: Merge Unified, which allows organizations to seamlessly incorporate a multitude of integrations through a single API, and Merge Agent Handler, which equips AI agents with secure access to a wide array of third-party tools. Trusted by thousands, Merge's enterprise-level platform streamlines the entire integration lifecycle, ensuring robust authentication, security, monitoring, and maintenance. Our solutions empower companies to accelerate product development, enhance sales efficiency, minimize customer churn, and conserve engineering resources, enabling them to concentrate on their core offerings. Key Responsibilities:Lead discussions on roadmapping and architectural strategies.Develop high-quality, production-ready, and maintainable code.Steer Merge's most significant projects from conceptualization to deployment.Support and empower your team, including engineers, designers, product managers, and business operators.Ideal Candidate Profile:7+ years of professional software engineering experience.Proficiency with frameworks such as Django, Rails, or Spring.In-depth understanding of SQL databases, preferably Postgres.Projects You May Engage In:Scaling Core Systems: Identify and resolve performance bottlenecks in our data syncing engine, lead large-scale migrations to more efficient technologies and storage solutions, and drive initiatives to enhance system throughput.Product Innovation: Design adaptive syncing paradigms that facilitate advanced customization across model normalization, scheduling, data filtering, and API rate limit management.New Revenue Streams: Collaborate on the development of features that open new avenues for revenue generation within the platform.

Why Join AngelListAt AngelList, we tackle some of the most challenging issues in venture capital and private markets. Our team is driven by precision, urgency, and a vision for the future. If you're passionate about transforming the startup funding landscape, this is your opportunity.About AngelListOur mission is to fuel innovation by enhancing the success rate of startups globally. We achieve this by creating the financial infrastructure that facilitates investment in transformative companies. AngelList stands at the intersection of venture capital and the startup ecosystem, supporting over $171 billion in assets and facilitating investments in more than 13,000 startups, including over 300 unicorns. With 57% of premier U.S. VC deals involving AngelList investors, we are ambitious in our goals.If you are excited about shaping the future of private markets, we invite you to join our journey.About the Role: As a Staff Software Engineer for our Nova platform, you will be pivotal in defining and designing our development processes. You will be responsible for establishing the domain model and architectural patterns that will guide our engineering team. If you are a catalyst who can empower a team of eight to perform like a team of twenty by establishing clear patterns, embedding engineering context into our codebase, and driving vital initiatives forward, we want to hear from you.

Astranis is pioneering the development of cutting-edge satellites for high orbits, pushing the boundaries of humanity’s exploration of the solar system. Our satellites currently provide dedicated, secure networks to an array of sophisticated clients worldwide, including major corporations, sovereign governments, and the US military. With five satellites already in orbit and numerous launches on the horizon, we are addressing a backlog exceeding $1 billion in commercial contracts.Astranis has become the go-to satellite communications partner for those demanding high standards in uptime, data security, network visibility, and customization. We have successfully raised over $750 million from leading investors, including Andreessen Horowitz, Blackrock, and Fidelity, and we are proud to employ a talented team of 450 engineers and innovators. Our satellite design, manufacturing, and operational facilities are based in our expansive 153,000 sq. ft. headquarters in Northern California, USA.Payload Operations EngineerIn the role of Payload Operations Engineer at Astranis, you will be instrumental in the planning, execution, and optimization of our communications payloads during their operational life in orbit. Merging your mission engineering expertise with an understanding of RF systems, you will ensure the performance, reliability, and responsiveness of our payloads throughout their missions. This position is perfect for individuals who excel at the intersection of space operations, RF systems, and software-driven telemetry and control.

Join Baseten as an Infrastructure Operations Engineer and become an integral part of our innovative team. In this role, you will be responsible for maintaining and enhancing our infrastructure, ensuring optimal performance and reliability. You will work collaboratively with cross-functional teams to develop and implement solutions that drive efficiency and scalability.If you are passionate about infrastructure management and seek to make a significant impact in a fast-paced environment, we want to hear from you!

Role overview MidiHealth is hiring a Staff Software Engineer - AI Engineer for a hybrid role in the San Francisco Bay Area. The position focuses on building and improving AI-powered solutions that contribute to better healthcare outcomes. What you will do Collaborate with cross-functional teams to design and implement AI-driven systems for healthcare. Develop scalable architectures and write efficient algorithms tailored to healthcare applications. Uphold strong software quality standards throughout the development lifecycle. Location This position is hybrid, with work based in the SF Bay Area.

Role overview MidiHealth seeks a Staff Software Engineer for its Platform Engineering team. This hybrid role is based in the San Francisco Bay Area and centers on building software that supports the platform’s growth, performance, and usability. What you will do Design and develop software solutions that address platform engineering challenges Collaborate with experienced engineers to improve reliability and expand platform features Contribute to efforts that boost performance and create a smooth user experience Location This position requires a hybrid schedule, including on-site work in the SF Bay Area.

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.

At Netic, we are pioneering the AI revenue engine that powers essential services, forming the backbone of the American economy.With a robust $43 million in funding from prominent investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who led our Series B, we have empowered our clients to secure hundreds of thousands of jobs across various service industries throughout North America. Today, numerous companies are operating entirely through an AI-first approach on the Netic platform.Joining our team means collaborating with passionate builders from renowned organizations such as Scale, Databricks, HRT, Meta, and prominent academic institutions like MIT, Stanford, and Harvard. Together, we are advancing frontier AI technologies within the physical economy, where challenges are complex, data is intricate, and the impact is both immediate and significant.As a Software Engineer on our Product team, you will develop innovative features that seamlessly integrate AI into real-world business applications. This role emphasizes technical excellence and a deep understanding of customer needs, enabling us to create products that simplify complex AI technologies and deliver immediate value to essential service industries.

Join Our Team at ConversionAt Conversion, we are pioneering the future of marketing automation through our AI-driven platform, designed specifically for modern software companies. Traditional marketing tools are often outdated and fragmented, leading to ineffective strategies. Our mission is to repair these broken funnels and misaligned messaging.With Conversion, growth teams can manage their entire go-to-market strategy seamlessly within a single interface. From customer acquisition to activation and retention, everything is streamlined, personalized, and enhanced by AI technology.Having secured over $28 million in funding from notable investors like Abstract Ventures, True Ventures, and HOF Capital, we are experiencing rapid growth with over $5 million in ARR and more than 4000 satisfied customers.Our compact yet high-performing team based in San Francisco is looking for passionate individuals who thrive in a creative, product-led marketing environment. If you're eager to collaborate with top-tier talent and contribute to innovative solutions, we want to connect with you!Over $28M raised in funding$0 to $6M ARR achieved in under a year, serving 4000+ customersJoin an elite team with backgrounds from Airbnb, Palantir, Pinterest, IMC Trading, Shopify, LinkedIn, Microsoft, and more

About Our TeamThe Connectivity Software Engineering team at OpenAI is dedicated to delivering seamless, secure, and high-performance wireless connectivity across our innovative products. We specialize in designing and optimizing Bluetooth, BLE, Wi-Fi, and next-generation wireless technologies to guarantee exceptional device pairing, network performance, and interoperability. Our work encompasses kernel drivers, system services, and user-level tools, all focused on achieving real-world performance, scalability, and reliability.About the RoleOpenAI is on the lookout for a talented Connectivity Software Engineer to spearhead the design, implementation, and optimization of wireless connectivity features across our diverse product ecosystem. In this role, you will operate at the intersection of systems software, wireless standards, and hardware integration, building robust pairing and provisioning flows, troubleshooting low-level protocols, and enhancing performance to meet real-world RF challenges. Additionally, you will play a crucial role in supporting certification, ensuring interoperability in the field, and maintaining fleet-scale connectivity infrastructure.This position is based in San Francisco, CA, and follows a hybrid work model of 4 days in the office per week. We also provide relocation assistance for new hires.Key Responsibilities:Design, implement, and debug Bluetooth/BLE and Wi-Fi features within kernel drivers, BlueZ/wpa_supplicant/hostapd, and systemd/D-Bus services.Create reliable pairing, bonding, and provisioning flows (GATT/GAP, LE Audio/LC3, WPA3/802.1X, captive portals, NAN).Enhance link performance metrics such as throughput, latency, jitter, roaming, coexistence (BT↔Wi-Fi), and power modes (TWT, WoWLAN).Develop dependable network management solutions utilizing NetworkManager/nmcli, nl80211/cfg80211/mac80211, DNS/DHCP/mDNS, P2P/SoftAP.Perform analysis and instrumentation using packet captures and tools (btmon/hcidump, Wireshark, iperf, eBPF/perf, spectrum sniffers).Lead interoperability and certification efforts (Bluetooth SIG, Wi-Fi Alliance) and resolve field issues with effective root-cause analysis.Contribute to OTA-safe configuration, telemetry, and diagnostics for large-scale fleet operations.You Will Excel in This Role If You:Possess extensive experience in delivering wireless features for Linux-based products.Demonstrate high proficiency in C/C++, alongside scripting experience (Python or shell).

Join our dynamic team at Reteam as a Mobile Software Engineer in San Francisco, where innovation meets technology. We are looking for a passionate engineer to contribute to our mobile applications and enhance user experiences.In this role, you will collaborate with cross-functional teams to design, develop, and maintain high-quality mobile solutions.Key ResponsibilitiesDevelop and maintain mobile applications for both iOS and Android platforms.Collaborate with UX/UI designers to implement user-friendly interfaces.Optimize applications for maximum speed and scalability.QualificationsProficiency in Swift and Kotlin.Experience with mobile frameworks and libraries.Strong problem-solving skills and attention to detail.If you're ready to take on exciting challenges and grow your career in mobile development, we want to hear from you!

Join us at Lever, a leader in innovative talent acquisition solutions! Our mission is to revolutionize how companies like Netflix, Spotify, and Shopify recruit and hire top talent. We are proud to be recognized as the #1 workplace in San Francisco and a top employer in the U.S. If you're passionate about engineering and want to make a meaningful impact in a vibrant, people-first culture, we want to hear from you!

About UsZeta Global (NYSE: ZETA) is a cutting-edge AI-Powered Marketing Cloud that utilizes advanced artificial intelligence (AI) alongside trillions of consumer signals to enhance the efficiency of customer acquisition, growth, and retention for marketers. Our vision, delivered through the Zeta Marketing Platform (ZMP), is to simplify sophisticated marketing by integrating identity, intelligence, and omnichannel activation into a unified platform, supported by one of the industry's largest proprietary databases and AI. Our enterprise clients across diverse sectors can personalize consumer experiences on an individual level across all channels, driving superior results for marketing initiatives. Founded in 2007 by David A. Steinberg and John Sculley, Zeta Global is headquartered in New York City with a global presence. For more information, visit www.zetaglobal.com.Job OpportunityAt Zeta Global, identity forms the backbone of our marketing cloud. The Identity team is responsible for creating and managing backend services that drive the Zeta Identity Graph, which involves collecting, resolving, and maintaining billions of behavioral, demographic, and transactional signals. These services facilitate large-scale people-based marketing, ensuring trust and transparency in identity data management while providing critical APIs and event streams utilized across Zeta's platform. Our infrastructure supports over 235 million consumer profiles and processes billions of events monthly, necessitating services that are highly available, low-latency, and scalable.We are seeking a Lead Software Engineer who excels in both backend distributed systems and data engineering. In this pivotal role, you will design APIs and event-driven services, enhance our systems to accommodate rapidly increasing data volumes, and modernize our platform for resilience, transparency, and optimal performance.Key Responsibilities:Design and implement backend services and APIs for identity resolution, graph transparency, and integrations.Develop and optimize event-driven pipelines and workflows that process billions of signals.Deploy and maintain cloud-native services on EKS/Kubernetes, utilizing Helm for consistent deployments.Ensure reliability, observability, and scalability of services and data pipelines.Collaborate with engineering, product, and data teams to deliver comprehensive identity solutions.Mentor and guide engineers to elevate team capabilities.

RDQ226R609 - This position is open to candidates located anywhere in the United States. At Databricks, we are passionate about empowering data teams to tackle the world’s most challenging issues, from detecting security threats to advancing cancer drug development. We achieve this by building and operating an exceptional data and AI infrastructure platform, allowing our clients to concentrate on the critical challenges that define their missions. As a key member of the Security Continuous Monitoring team, you will be instrumental in developing and scaling Databricks Security systems on our platform. Your responsibilities will include designing, testing, and implementing data pipelines to evaluate the security configurations of Cloud, SaaS, and on-premise tools. You will create and deploy reliable supporting security tools for managing and assessing security posture, integrate with third-party applications, and engage with cloud APIs (AWS, Azure, GCP, Terraform). You will lead and oversee projects from conception to completion, facilitating data collection and integration with our vulnerability and threat detection initiatives. In this role, you will be an individual contributor on the Security Continuous Monitoring team, reporting directly to the Director of Continuous Monitoring.

About Our TeamAt OpenAI, the Codex team is on a mission to revolutionize software engineering through cutting-edge AI technology. We are developing an AI software engineer capable of collaboration, task delegation, and proactive engagement. Our dynamic team combines expertise in research, engineering, design, and product development, continuously iterating on the Codex agent's capabilities and training the model to excel in complex software engineering tasks.The Codex team is at the forefront of creating advanced AI systems that can write code, reason about software, and serve as intelligent agents for both developers and non-developers. We manage the complete lifecycle of experimentation, deployment, and enhancement of innovative coding functionalities across research, engineering, product, and infrastructure.Codex for Teams specializes in developing products and platform functionalities that facilitate the integration of Codex into various team settings. Our cross-functional team works across the technological stack to create both engaging product experiences and essential platform capabilities. We cater to a diverse customer base, from small teams to large enterprises, and our mission is pivotal to realizing Codex as a proactive team member.About The RoleAs we expand, our goal is to transform Codex from a robust individual tool into a production-ready teammate for entire organizations. You will collaborate with internal OpenAI teams and external clients, ranging from agile startups to established enterprises, to ensure that Codex can be deployed, operated, and trusted in demanding real-world environments.With the surge in consumer adoption of Codex, enterprise demand is growing swiftly, offering exciting opportunities to enhance workflows, controls, and reliability. This team is dedicated to converting complex, real-world requirements into reliable, scalable product and platform capabilities.You will engage directly with a select group of highly involved design-partner customers, utilizing their actual deployments to identify opportunities and requirements for Codex's success within contemporary engineering organizations. These insights will inform your development work across product, infrastructure, and deployment methodologies for all teams utilizing Codex.This role encompasses end-to-end system ownership, from architecture and implementation to production operations, with a strong emphasis on both quality and speed.In This Role, You Will:Influence the evolution of Codex by understanding how teams utilize (and sometimes challenge) AI-powered software...

About WorkWhileAt WorkWhile, we are dedicated to empowering hourly workers to achieve financial stability and improved quality of life. With over 80 million Americans engaged in hourly employment, many face unpredictable schedules, low wages, and scarce benefits, which can lead to economic hardship.Our innovative platform is transforming the landscape of frontline work by fostering a more adaptable and effective labor market. Leveraging advanced AI technology, WorkWhile enables businesses to swiftly connect with top-tier talent. Workers enjoy same-day pay, complimentary telehealth services, opportunities for skill advancement, and the flexibility to select shifts that align with their expertise and personal schedules.Our ambitious aim is to harmonize incentives and address inefficiencies in the labor market, challenging the $650 billion staffing and recruiting industry. Supported by Khosla Ventures and celebrated by the Inc. 5000 for remarkable growth, WorkWhile is at the forefront of redefining the future of work.

With support from prominent Silicon Valley investors, Peregrine Technologies empowers public safety organizations, state and local governments, federal agencies, and private sector entities to tackle societal challenges with unparalleled speed and precision. Our AI-driven platform transforms isolated and disparate data into actionable intelligence, rapidly presenting critical information that enables improved decision-making and outcomes. Currently, Peregrine serves hundreds of clients across over 30 states and two countries, impacting more than 125 million individuals, as we broaden our reach into enterprise markets and international territories.TeamOur engineering team is deeply committed to the idea that empathy enhances our solutions. Understanding how users interact with our products is fundamental to our approach. Engineers have the unique opportunity to collaborate closely with our onsite team to grasp the diverse use cases that Peregrine addresses.We cherish both ownership and teamwork; you will be fully accountable for significant features while working hand-in-hand with fellow engineers to ensure successful delivery. We believe that humility and empathy are critical for crafting effective solutions, and you will engage directly with our deployment team and users as we refine our offerings to meet their needs. Ingenuity and perseverance are vital in realizing our vision.RoleAs part of our new AI team, you will play a key role in delivering unique value to our clients. This team is responsible for designing powerful and intuitive user experiences powered by generative AI. You will explore entirely new interaction methods for users—whether through natural language commands or by enabling AI agents to manage complex tasks on their behalf. Your contributions will shape impactful AI-driven features that assist customers in solving real-world challenges more efficiently.Your work will encompass a variety of intricate challenges, including scaling our platform to process terabytes of data from multiple sources, efficiently querying and alerting users about this data in real-time, and optimizing search algorithms for swift result delivery.While our technology stack is continuously evolving, it is built on a foundation that includes Python, Django, Celery, Airflow, and Kafka for the backend; React, Redux, and Mapbox for the frontend; PostgreSQL and Elasticsearch for data storage; machine learning models hosted in Bedrock and Sagemaker; and utilizing AWS, Pulumi, Terraform, and Kubernetes for our infrastructure.