Backend Software Engineer

Be a Part of the Financial Revolution.At Robinhood, our goal is to make finance accessible for everyone. With an anticipated transfer of $124 trillion in wealth to younger generations in the coming decades, we are poised at the forefront of this transformative moment. If you're eager to engage in this monumental cultural and financial transition, we want to …

Join our innovative team at Robinhood as a Backend Software Engineer, where you will play a pivotal role in building scalable systems that empower our users to take control of their financial futures. We are looking for passionate engineers who thrive in a fast-paced environment and are excited about leveraging technology to create impactful solutions.

Join our innovative team at januaryinc as a Lead Backend Platform Engineer! In this pivotal role, you will drive the development of scalable backend systems that support our industry-leading products. Your expertise will guide a talented team as we push the boundaries of technology and deliver exceptional user experiences.

Employment Type: Full-time position available. Candidates must be willing to relocate to the Bay Area, specifically Menlo Park, and work in the office three days a week.Immigration: Applicants must be legally authorized to work in the United States. Sponsorship is available for candidates currently residing in the U.S.About Bedrock Data:At Bedrock, we empower our customers to gain complete visibility over their data assets. Our innovative product enables users to track their data locations, assess access permissions, and identify potential security gaps. Our data scanning technology is capable of managing petabyte-scale datasets and can be deployed across multiple cloud environments including AWS, GCP, and Azure. Customers can trust that their data remains secure within their own environment, as we only transmit minimal metadata to our lake for generating actionable insights.We are proud recipients of numerous accolades, such as the RSA Top 10, Fortune Top 50, SINET16, and the CODiE 2025 Award for Best AI Powered Startup.About the Role:We are excited to invite applications for the role of Backend Engineer. This is an opportunity for individuals at all experience levels to contribute to our cloud security platform. In this position, you will not only be developing code but also engaging with various stakeholders including leadership, customers, partners, and investors as we evolve our product from inception to growth.Bedrock Security is a proud investment of Greylock Partners, known for their backing of successful startups like Palo Alto Networks, Sumo Logic, and Abnormal Security, as well as non-security innovators like Airbnb, Figma, and Roblox.Responsibilities:Design and Implement Backend Logic:Create robust and scalable services.Ensure service security and performance.Manage our tech stack, which includes Golang, Python, Node.js, AWS infrastructure, Neo4j, and more.Drive Impact in a Dynamic Startup Environment:Collaborate with fellow engineers, product management, marketing teams, and customers.Participate in architectural and system design decisions.

Be a Part of the Financial Revolution.Our vision is to democratize finance for everyone. An estimated $124 trillion of assets will transition to younger generations over the next two decades, marking the largest wealth transfer in history. If you are eager to be at the forefront of this monumental cultural and financial transformation, we invite you to continue reading.About Our Team and Your RoleWe are assembling an elite team committed to leveraging cutting-edge technologies to tackle the world’s most pressing financial challenges. We seek innovative thinkers, adept problem-solvers, and builders who are driven to make a significant impact. Robinhood is not a place for mediocrity; it is where ambitious individuals achieve the pinnacle of their careers. Our culture is characterized by high-performance, rapid pace, and a commitment to ethics in all that we do. The stakes are high, but so are the rewards.The Crypto Custody team is dedicated to creating a state-of-the-art custody platform that supports both custodial and non-custodial blockchain products, ensuring exceptional security and reliability. We manage Robinhood’s foundational crypto custody infrastructure, directly contributing to the launch of new products, asset diversification, and global expansion.As a Staff Software Engineer, you will be responsible for designing and scaling secure systems for digital asset custody, transforming manual processes into automated, policy-driven solutions. You will lead critical custody initiatives, enhance system reliability and compliance, and work collaboratively with cross-functional teams to ensure the secure management of digital assets on a large scale.This position is primarily based in our New York, NY office, with a requirement for in-person attendance at least three days a week.At Robinhood, we recognize the value of in-person collaboration in accelerating progress, inspiring innovation, and fostering community. Our office environment is intentional, invigorating, and tailored to support high-performing teams.

About Sprinter Health:At Sprinter Health, we are dedicated to transforming the way individuals access healthcare by delivering services directly to their homes. Nearly 30% of patients in the U.S. avoid preventive or chronic care due to barriers in reaching healthcare facilities. For many, the emergency room becomes their first interaction with the healthcare system, resulting in over $300 billion in unnecessary costs annually.Leveraging cutting-edge technologies that drive leading marketplace and last-mile delivery platforms, we bring care directly to those who need it most. To date, we have assisted more than 2 million patients across 22 states, conducted over 130,000 in-home visits, and maintained a 92 Net Promoter Score (NPS). Our dynamic team of clinicians, technologists, and operators has successfully raised over $125 million from esteemed investors such as a16z, General Catalyst, GV, and Accel, positioning us with a robust multi-year runway.About The Role:We are seeking an innovative Senior Software Engineer with a passion for agentic AI and a minimum of 5 years of comprehensive engineering experience. You will play a crucial role as a founding engineer on our new AI-focused incubator teams. Our objective is to address the challenges faced by individuals who fall through the cracks of the current healthcare system, and your expertise in AI will be instrumental in bridging those gaps.*If you thrive in startup environments and love creating from scratch (0 → 1),* we would love to connect with you. While our core products are already thriving, we continuously seek innovative ideas to enhance healthcare access. As part of our incubator, you will enjoy the freedom of a startup environment coupled with the significant advantage of established customer relationships with six of the ten largest U.S. health plans and access to extensive resources.Office Location:We operate on a hybrid work model with offices located in both San Francisco and Menlo Park. We prioritize work-life balance and recognize the necessity for flexibility at times.What You Bring:Software Engineering: At least 5 years of diverse, full-stack or backend-focused experience.Startup Culture: A minimum of 1 year working in a seed-stage environment, contributing to innovative projects.

Join Our Visionary TeamAt Lirvana Labs, we are pioneering the future of personalized education through innovative technology. As a VC-backed ed-tech startup, we are committed to transforming learning experiences with the power of AI. Supported by renowned investors like Kapor Capital, and partnered with esteemed organizations such as Sesame Workshop and Stanford University, we are on a mission to make impactful educational tools accessible to all.Our flagship product features Yeti Confetti Kids, a dynamic AI tutor that customizes learning journeys, alongside the Teacher Co-Pilot Portal, which provides educators with actionable insights and streamlined functionalities. We are dedicated to advancing our literacy, math, and social-emotional learning programs to reach even more learners across the globe.About the PositionWe are seeking an experienced Senior Frontend Software Engineer with an expertise in UI/UX development to create high-quality, scalable applications for web and mobile platforms. You will significantly influence the user experience and the foundational architecture of our products. If you are passionate about leveraging Flutter, React, and crafting exceptional applications, we want to connect with you.Key ResponsibilitiesDesign & Develop: Architect and implement scalable frontend applications using Flutter (Dart) and/or React. Deliver robust features across web and optional iOS/Android platforms.Deployment: Oversee the deployment process to the web and manage iOS/Android deployment using Flutter. Ensure efficient CI/CD pipelines and scalable release workflows.Mentorship & Leadership: Take charge of significant features from conception to deployment and guide junior engineers through code reviews, pair programming, and technical mentorship.Innovate & Enhance: Propel technical excellence by continuously improving our development practices and exploring new technologies.

Company OverviewMainspring Energy is at the forefront of transforming power generation with the innovative Mainspring Linear Generator, a highly flexible and versatile local power generation technology. Leaders in the commercial, industrial, and utility sectors are selecting Mainspring over traditional methods such as engines, turbines, and fuel cells to efficiently and reliably provide local power for applications including EV charging, commercial facilities, data centers, and grid-scale operations. Our Linear Generator is fuel flexible, responsive to demand fluctuations, and operates with a flameless reaction that results in near-zero NOx emissions.Supported by esteemed investors such as Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures, and delivers its solutions to customers throughout the U.S. and is rapidly expanding its footprint internationally.Driven by our vision of an affordable, reliable, and net-zero carbon energy grid, Mainspring is experiencing robust growth within the $816 billion global electricity equipment market. We are seeking top-tier talent to accommodate our expanding customer base worldwide. We embrace a diverse range of backgrounds, experiences, and skills to foster fresh perspectives and continuous innovation for our clients.We seek to build connections with individuals who resonate with our core values:Pragmatic Optimism. The development of a groundbreaking category of power generation requires a blend of ambitious optimism and the practicality to efficiently address challenges, viewing them as opportunities for advancement.Excellence without Ego. We are committed to delivering an exceptional customer experience across all stages, from sales to deployment and service, while maintaining deep technical rigor in creating and delivering our world-class products. We strive for excellence and operate as leaders who humbly acknowledge our collective and individual challenges.Proactive Collaboration. The interdisciplinary nature of Mainspring's work necessitates actively engaging with others who offer varied skills, perspectives, and priorities, fostering an inclusive and respectful culture that extends to our partners and clients.For more information, please visit www.mainspringenergy.com.

Are you ready to revolutionize molecular diagnostics?Join a passionate team of innovators dedicated to transforming healthcare. At BillionToOne, we have established a groundbreaking, publicly traded company on Nasdaq, where transparency fosters trust, collaboration leads to breakthroughs, and every contribution advances our mission to make impactful diagnostics accessible to everyone. Rather than seeking mere incremental improvements, we create products that are ten times better than existing solutions.Our diverse team of scientists, engineers, sales experts, and visionaries is united in an unwavering commitment to enhance the standards in prenatal and cancer diagnostics. Here, cutting-edge science merges with human compassion, and every innovation you contribute alleviates the uncertainty surrounding critical medical moments.If you are fueled by purpose, inspired by innovation, and eager to help shape the future of scalable precision medicine, this is the place for you.We are currently seeking a high-performing Senior Software Engineer to join our dynamic software engineering team. At BillionToOne, our software engineers collaborate with clinicians, computational biologists, and fellow engineers to effectively scale personalized genomic medicine for millions of patients. If you have experience in full life-cycle development, enjoy seeing your work positively impact colleagues and patients, and thrive in a fast-paced entrepreneurial environment, this opportunity is for you. In this role, your influence can extend through both small tools and large product development. This position is hybrid (onsite 2-3 days/week).Potential projects include:Creating a seamless digital experience to ensure clinicians and patients across various care centers and socioeconomic backgrounds can access BillionToOne’s complex genetic testing.Transforming labor-intensive and error-prone paper-based workflows at busy OBGYN clinics.Facilitating improved transfer of care through portable electronic medical records.Enhancing joyful experiences during pregnancy.Technologies utilized include: Python, Django, Postgres, React, Typescript, AWS, Salesforce, and emerging AI-assisted coding environments (e.g., Cursor, GitHub Copilot, Claude Code).Responsibilities:Build and maintain robust applications and systems using React, Typescript...

Prophet Security creates automation tools designed for security teams. The company’s platform analyzes security alerts, builds and executes investigative plans, and delivers actionable findings. Security analysts use these results and provide feedback, helping improve automation over time. Prophet Security is led by a founding team with over 30 years of cybersecurity experience from organizations including Abnormal Security, Expel, Mandiant, McAfee, Oracle, Red Canary, Red Hat, Riverbed, and Symantec. Headquarters are in Menlo Park, with a hybrid work model. Role overview This Senior Full Stack Software Engineer role focuses on building the user-facing elements of Prophet Security’s AI SOC platform. As an early engineering team member, there is significant influence over product direction, technical architecture, and team culture. The initial emphasis is on frontend development, designing and implementing interfaces that security analysts use to investigate alerts, review AI-generated findings, and respond to threats. Over time, responsibilities can expand to backend systems, such as APIs, data pipelines, integrations, and services supporting the platform. What you will do Work with design, product, and backend engineers to deliver features for security analysts Collaborate with the security operations team and interact directly with customers to understand practical needs Shape product direction, technical architecture, and engineering practices as part of the early team Requirements Strong, recent experience in modern frontend development Interest in both frontend and backend engineering Comfort working collaboratively in a startup setting Location This position is based in Menlo Park and follows a hybrid work schedule.

At Workstream, we are dedicated to transforming the way hourly workers are managed through our comprehensive HR, payroll, and hiring platform. With 2.7 billion hourly workers representing 80% of the global workforce, this demographic has been historically overlooked by technology. Our solutions are designed to empower both businesses and their employees from the ground up.We proudly serve numerous prestigious brands across various industries, including Burger King, Carl's Jr./Hardee's, IHOP, KFC, and Culvers. As a rapidly growing Series B company, we are expanding our product offerings and are supported by renowned venture capitalists and industry leaders such as Founders Fund, BOND, and Coatue.Join Our JourneyWe are in search of a passionate and innovative Wearables Prototype Engineer to conceptualize, develop, and refine cutting-edge wearable technology that seamlessly integrates with Workstream's platform.In this dynamic role, you will bridge the gap between hardware and software by rapidly prototyping, testing, and enhancing wearable solutions aimed at boosting productivity and communication for the hourly workforce. Collaboration with product, engineering, and design teams will be essential as you transform ideas into functional prototypes.This role is highly experimental and fast-paced, perfect for individuals who thrive in uncertainty, enjoy building from the ground up, and can swiftly transition from concept to prototype.

Join Sprinter Health as a pioneering Senior Software Engineer in our innovative AI incubator team. Our mission is to revolutionize healthcare access by bringing services directly to patients' homes, addressing the critical gap that leads to over $300 billion in avoidable costs annually due to missed preventive care.At Sprinter Health, we leverage cutting-edge technologies from leading marketplace platforms to deliver healthcare where it’s needed most. We are proud to have served over 2 million patients across 22 states and conducted over 130,000 in-home visits, maintaining an impressive 92 NPS. Backed by top investors such as a16z, General Catalyst, GV, and Accel, we are set for continued growth and innovation.About the Role: We seek an entrepreneurial spirit who has at least 5 years of software engineering experience, particularly with an interest in agentic AI. As one of the founding engineers in our AI incubator, you will have the unique opportunity to shape solutions that bridge the gaps in our healthcare system.If you thrive in a 0 to 1 environment and are eager to contribute to expanding healthcare access, we want to connect with you. Our incubator functions with the agility of a startup while benefiting from direct relationships with six of the ten largest US health plans.Work Location: We operate as a hybrid company with offices in San Francisco and Menlo Park, offering flexibility to ensure a healthy work-life balance.

Join BillionToOne as a Senior Software Engineer focused on enhancing digital experiences. In this role, you will leverage your expertise in software development to design, implement, and optimize innovative solutions that improve user engagement and satisfaction. Collaborate with cross-functional teams to create seamless digital interactions that align with our mission to revolutionize healthcare technology.

Location: Menlo Park, CAEmployment Type: Full-TimeCompensation: Competitive salary + significant milestone-based equityAbout Glade.aiGlade.ai is revolutionizing AI-driven automation to empower service industries to operate with enhanced efficiency and speed. Our comprehensive platform automates workflows, simplifies processes, and facilitates team scalability, allowing sectors such as legal, insurance, and professional services to prioritize delivering exceptional value to their clients.The OpportunityWe are seeking an experienced Staff Software Engineer to take on a pivotal role as a technical leader and mentor within our expanding product engineering team. This is an extraordinary chance to influence the architecture, engineering culture, and product trajectory of a fast-growing company from its inception.In this role, you will guide a team of software engineers, fostering innovation and ensuring the delivery of high-impact, scalable, and elegant solutions.What You’ll DoCollaborate with Product, Design, and other stakeholders to identify customer requirements and devise effective solutions.Lead the design and execution of significant product and platform modifications across Glade’s software infrastructure.Elevate the standards of the engineering organization by offering technical guidance and mentorship, developing tooling, and enhancing engineering workflows.Navigate seamlessly through the entire product lifecycle, from design and implementation to production.What We’re Looking For8+ years of experience in software engineering, with substantial experience in leadership or principal roles.Strong grasp of engineering principles, industry standards, and emerging technologies, particularly within our tech stack: TypeScript, React, Node.js, PostgreSQL.Proven experience in constructing and refining production systems to support new product functionalities and accommodate growing demand.Experience in developing or prototyping LLM-powered workflows using inference providers like OpenAI.A strong commitment to enhancing the end user experience and a passion for creating products that address customer needs.A humble disposition, eagerness to learn, and a collaborative spirit.

Be a Part of Shaping the Future of Finance.At Robinhood, our mission is to democratize finance for everyone. With an estimated $124 trillion set to be transferred to younger generations in the coming decades, you have the chance to be at the forefront of this monumental shift. If you're eager to make a significant impact in this evolving financial landscape, we want you to join us.About the Team & RoleWe are assembling a distinguished team dedicated to applying innovative technologies to tackle the most pressing challenges in finance. We seek visionary thinkers, adept problem solvers, and impactful builders. Robinhood is not for the complacent; it’s a place where ambitious individuals excel in their careers. Our Growth Engineering team focuses on developing systems that facilitate new customer acquisition through SEO, paid marketing, and user incentives. We collaborate closely with Product, Data Science, Marketing, and Technology to enhance conversion rates and boost funded accounts. This newly established team presents a unique opportunity to influence technical foundations and achieve quantifiable growth results!As an Engineering Manager, you will steer the technical direction and execution strategy across multiple growth initiatives. Collaborating with Product teams, you will define a targeted roadmap, ensure the delivery of robust scalable systems, and cultivate a strong team culture centered on accountability and results. Your contributions will play a vital role in advancing Robinhood's growth strategy both domestically and internationally.This position is based in our Menlo Park, CA office, with in-person attendance required at least four days per week. We believe that in-person collaboration accelerates innovation and fosters community. Our office environment is designed to be energizing and fully supportive of high-performing teams.

Workstream is a purpose-driven technology firm dedicated to creating a comprehensive HR, payroll, and hiring platform tailored for the hourly workforce. With 2.7 billion hourly workers—representing 80% of the global workforce—this segment has been largely overlooked by technological advancements, and we believe it deserves better solutions. From our inception, Workstream has been designed with the needs of the hourly workforce in mind, empowering businesses and their employees to thrive.We proudly serve notable clients across various sectors, including well-known brands like Burger King, Carl's Jr./Hardee's, IHOP, KFC, and Culvers. As a rapidly growing Series B company, we are swiftly expanding our product offerings to fulfill our ambitious vision. Our endeavors are supported by prestigious investors and industry leaders such as Founders Fund, BOND, and Coatue.Our diverse team hails from esteemed institutions like UC Berkeley, Cornell, SJTU, Cambridge, and NUS, with rich industry experience from companies such as Tencent, Alibaba, Amazon, and ByteDance. Our engineering team is composed of passionate, talented engineers committed to innovating cloud technology solutions that empower local businesses to flourish and better serve the deskless workforce in their communities. We are currently looking for a skilled Senior Software Engineer to join our expanding engineering team.

Mainspring Energy seeks a Principal Cloud Platform Software Engineer based in Menlo Park, CA. The role centers on building and refining cloud-based platforms that power the company's products and services. Key responsibilities Design, develop, and improve core components of the cloud platform Collaborate with engineering, product, and operations teams on technical solutions Create and deliver systems that prioritize scalability and security within the cloud infrastructure Collaboration Frequent teamwork with colleagues from various backgrounds is essential. The goal is to ensure the platform aligns with both business objectives and technical requirements.

Join Speechify as a Senior Software Engineer specializing in Windows and Desktop Applications. In this role, you will leverage your extensive experience to design, develop, and maintain high-quality software solutions that enhance the user experience. You will work closely with cross-functional teams to deliver innovative features that meet our users' needs.

About BillionToOne BillionToOne is a publicly traded company (Nasdaq) focused on advancing molecular diagnostics. The team brings together scientists, engineers, and clinicians with a shared goal: improve access to effective prenatal and cancer diagnostics. Collaboration and transparency are core values, and every team member plays a part in supporting patients during crucial medical moments. Role Overview The Senior Software Engineer, Digital Experiences will join the software engineering group in Menlo Park, CA (hybrid: 2-3 days onsite per week). This role partners closely with clinicians, computational biologists, and other engineers to help scale personalized genomic medicine for millions of patients. The team values full life-cycle development and seeks someone eager to make a direct impact on healthcare delivery. Key Projects Designing digital experiences that make BillionToOne’s genetic testing accessible to clinicians and patients from a wide range of backgrounds. Replacing manual, error-prone paper processes in oncology clinics with efficient digital workflows. Improving care transitions by supporting portable electronic medical records. Technology Stack The team works with Python, Django, Postgres, React, Typescript, AWS, Salesforce, and AI-assisted coding tools such as Cursor, GitHub Copilot, and Claude Code. Responsibilities Develop and maintain applications and systems using React, Typescript, Django, Postgres, and related libraries. Work Location This is a hybrid position based in Menlo Park, CA, with 2-3 days per week onsite required.

Mainspring Energy creates the Mainspring Linear Generator, a power generation solution designed for commercial, industrial, and utility applications. These generators provide local power for uses like EV charging, commercial buildings, data centers, and large-scale grid projects. The Linear Generator operates with a flameless reaction, resulting in nearly zero NOx emissions and compatibility with various fuels. The company is supported by investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst. Mainspring designs, manufactures, and delivers its products across the United States and is preparing for international expansion. The team aims to build a reliable, affordable, and net-zero carbon grid, and is growing quickly within the global electricity equipment market. Mainspring values diverse backgrounds and believes they foster innovation. Core Values Pragmatic Optimism: Combining creativity with practical solutions, the team sees challenges as opportunities for growth. Excellence without Ego: Focused on delivering strong customer experiences, employees apply technical skill with humility and teamwork. Proactive Collaboration: Success depends on engaging with people from different backgrounds and perspectives, building a respectful and inclusive culture. Role overview The Staff Cloud Platform Software Engineer will lead the architecture for Mainspring’s cloud-to-field software systems. This platform enables monitoring, control, and optimization of distributed energy assets for commercial, industrial, and utility clients. The role is central to developing and maintaining the systems that support reliable on-site power delivery through the Linear Generator platform. Location This position is based in Menlo Park, CA.