Senior Full-Stack Software Engineer

About HappyRobotHappyRobot is pioneering the AI-native operating system tailored for the real economy, seamlessly bridging the gap between intelligence and actionable outcomes. By harnessing real-time data, specialized AI agents, and a central orchestrating intelligence, we empower enterprises to manage intricate, mission-critical operations with unparallele…

Drive Innovation with PurposeAt BILL, we empower businesses that fuel our economy by modernizing outdated financial processes with cutting-edge tools. We aid companies—ranging from startups to established enterprises—in making informed decisions and gaining operational control. Our mission extends beyond mere solutions; we are pioneering the future of financial automation, allowing businesses to focus on what truly matters.Joining us means being part of a visionary team eager to confront challenges and develop innovative solutions. We cherish purpose, drive, and curiosity, thriving in a dynamic and fast-paced environment. Whether you're based in our San Jose, CA office, our Draper, UT location, or working remotely, BILLers collaborate to create substantial impact for businesses seeking additional time in their busy schedules.At BILL, we build high-performing teams and actively seek the best talent for every position. We are committed to fostering a workplace that embraces inclusion and diverse perspectives, appreciating each individual’s unique skills and experiences. We would love to hear from you—your skills may be just what we need, whether for this role or another. Let’s give businesses more time for what matters.Make an Impact at a Rapidly Growing Fintech CompanyJoin BILL’s Account Payables - Multi-Entity team, where we are revolutionizing the management of complex financial operations across multiple entities, subsidiaries, and locations. As a Senior Software Engineer, you will design and scale innovative back-office solutions, handling enterprise-level data volumes and intricate workflows that empower Lower Mid-Market Customers and Accountants to optimize operations through our flagship Multi-Entity (ME) offering.This team operates with a “startup” mentality within the broader AP operations, having developed a core platform from the ground up in the last year that efficiently manages data across hundreds of entities with a focus on reliability, performance, and availability. This is your chance to thrive in a collaborative, high-growth environment where your technical expertise will directly shape BILL’s vision to empower businesses through financial automation. Please note that this position operates in a hybrid work model from our San Jose office.

About UsAt Valdera, we empower manufacturers to turn their visions into reality by revolutionizing the way they source materials. Our innovative platform simplifies the process of finding top-quality materials and suppliers, enabling manufacturers to create exceptional products at scale and distribute them globally.As a rapidly expanding team, we have established successful partnerships with Fortune 500 industrial manufacturers, beauty brands, and chemical companies. We seek driven and talented individuals who excel in high-performance settings and are eager to advance their careers swiftly.Our culture encourages top talent to tackle significant challenges, collaborate with industry leaders, and witness the tangible impact of their contributions. If you are seeking a dynamic environment where your ideas can foster change, Valdera is the perfect place for you.Join us in shaping the future of manufacturing.

Join prosper as a Senior Full Stack Software Engineer, where your expertise will drive innovation and enhance our technology solutions. In this role, you will collaborate with cross-functional teams to develop scalable applications, ensuring high-quality code and performance. Your contributions will help shape the future of our platform and improve user experiences.

About PrimerPrimer is an innovative network of K–8 schools dedicated to revitalizing the fundamental principles of American education. Drawing inspiration from the original teaching primers that cultivated generations of readers, thinkers, and builders, our schools focus on proven methods while preparing for future challenges. We foster close-knit learning environments, empower skilled educators, and maintain a culture that respects children as both learners and leaders.For over 200 years, primers have shaped the American educational landscape. Now, Primer is preparing children for the next chapter.The software we develop underpins our Microschools, facilitating operations from day one. It assists teachers in sourcing real estate, recruiting students, and delivering genuinely personalized education. Our platform provides valuable insights to parents, supports virtual teachers in offering exceptional experiences, and streamlines our back-office operations. We have a broad scope of work ahead and a commitment to making a significant impact.We are assembling a small, talented team of hands-on engineers to play a pivotal role in the evolution of Primer.Role OverviewWe are in search of a skilled Full Stack Engineer to join our dynamic team. In this capacity, you will help reimagine the school experience through modern technology. You will create features that teachers, students, and families depend on daily while addressing tangible challenges in education.This position is based in San Francisco and requires in-office attendance five days a week.ResponsibilitiesTechnical Stack: Engage with technologies including TypeScript, NodeJS, GraphQL, Prisma, Postgres, NextJS, React, and Relay.Collaborative Environment: Collaborate daily with team members across engineering, product, design, and our academic program.Ownership and Growth: Take complete ownership of projects and enhance your skill set. You will have opportunities to lead initiatives that shape the product, with ample room for professional development.Engineering Culture: Contribute significantly to establishing our engineering culture as we expand our team.Deliver Quality Products: We uphold high standards for quality, so be prepared to work diligently to achieve excellence.QualificationsPassion for Education: You possess a genuine passion for transforming the U.S. education system. While this work is challenging, successful outcomes will prove to be the most rewarding of your career.

At Relativity Space, we are redefining the future of space exploration by constructing innovative rockets designed to meet both current requirements and future advancements. Our Terran R vehicle is set to deliver customer payloads into orbit, addressing the ever-increasing demand for launch capabilities. This is just the beginning, as achieving commercial success with the Terran R will pave the way for groundbreaking opportunities in science, exploration, and technological innovation that extends beyond the limits of our current understanding.Joining the Relativity team means being part of an environment where autonomy, ownership, and impactful contributions are encouraged at every level. Here, you won't just be executing tasks; you'll be tackling unprecedented challenges, contributing to the development of rockets, factories, and businesses from the ground up. Whether your expertise lies in propulsion, manufacturing, software, avionics, or corporate functions, you will collaborate across disciplines, influence strategic decisions, and witness your work make a tangible difference in record time. Relativity is a place where creativity and technical excellence merge, and your insights will help shape the narratives we are crafting together. This is a unique moment where you can leave a significant mark on our product, our processes, and our culture, as we propel Terran R towards its exciting future. The most rewarding work of your career awaits you. Join us.About the Team: Relativity Space is dedicated to strengthening humanity's connection to space and the universe beyond our home planet. With years of experience building top-tier technology organizations like Google, our CEO Eric Schmidt is steering Relativity into its next chapter: propelling Terran R towards launch and establishing a foundation for enduring impact.The Terrestrial Software team is tasked with laying the groundwork for an automated rocket factory and integrated launch platform. Our mission is to enhance and streamline workflows throughout the entire lifecycle of Terran R, from raw material intake to launch operations, and eventually manufacturing on Mars. Currently, this involves direct collaboration with teams across design, materials, manufacturing, and testing and launch to design, implement, and deploy innovative solutions.

Join our dynamic team at Braze as a Senior Full-Stack Software Engineer! In this pivotal role, you will collaborate with cross-functional teams to design, develop, and implement innovative software solutions. You will leverage your expertise in both front-end and back-end technologies to create seamless user experiences and optimize system performance.

Mithril is on the lookout for exceptional candidates at the Senior to Principal level. The exact level will be determined based on your experience and proven expertise. We value individuals who offer deep technical knowledge, strategic insights, and a history of impactful contributions. Our roles are tailored to fit each candidate’s unique strengths and career aspirations. About Mithril At Mithril, we are revolutionizing how AI companies harness compute power. Our mission is to orchestrate global compute capacity, making it more accessible and optimized for AI workloads. We are constructing a novel public cloud specifically designed for AI, where accessing high-performance compute is as straightforward and reliable as flipping a switch. Originating from a Stanford PhD lab just over a year ago, Mithril has already attracted backing from premier investors, including Sequoia, Lightspeed, Jeff Dean, and Eric Schmidt, among others. With $80 million in funding, we are securing customers and generating revenue. The current machine learning infrastructure is overly complex, forcing engineers to make hard choices about hardware when they should focus on solving major problems and driving innovation. Our Omnicloud Platform addresses this issue by abstracting hardware management and providing seamless access to computational resources, enabling engineers to concentrate on what truly matters—developing transformative AI solutions. We are not only making compute accessible; we are also making it flexible, scalable, and tailored to meet the unique demands of AI. Our infrastructure marketplace provides state-of-the-art hardware without the usual friction, allowing companies to innovate faster and more efficiently. Working at Mithril As a Full Stack Engineer at Mithril, you will play a crucial role in developing the applications and systems that will shape the future of AI. Your responsibilities will include scaling our platform and ensuring a seamless user experience supported by a robust and efficient infrastructure. In a landscape where AI workloads are increasingly complex, crafting reliable and high-performance software is foundational to our mission. The Omnicloud Platform supports cutting-edge AI workloads, managing vast amounts of data while providing a user-friendly interface for developers and researchers. Full Stack Engineers at Mithril design and implement solutions across the entire stack—from creating intuitive front-end interfaces to architecting scalable backend systems. We expect every engineer to approach problems holistically, balancing performance, scalability, and simplicity, while maintaining a strong focus on user experience.

Vivodyne is building advanced tools to accelerate drug discovery and development by working with large-scale, lab-grown human organ tissues. The company combines biology, robotics, and AI to generate multi-omic data from human tissues, aiming to improve the safety and effectiveness of new therapeutics. Vivodyne partners with major pharmaceutical companies and is backed by leading venture funds. Role overview The Senior Full Stack Software Engineer will join the team in San Francisco (Brisbane), CA. This position collaborates closely with Product to build sophisticated, high-performance web applications that support scientific workflows. The stack centers on React and TypeScript for the frontend, FastAPI for backend services, and Postgres for data management. Work includes designing and developing complex, stateful user interfaces, implementing backend features, and delivering end-to-end solutions. The engineer will focus on creating rich, data-driven interfaces that help scientists design experiments and monitor results. Strong interaction design and state management skills are important. Experience as an "AI native" is valued, as the team uses large language models to speed up prototyping and deliver results quickly. This role directly supports Vivodyne's biotech platform for drug discovery and testing, enabling scientists to work with unique datasets and robotic systems. The applications built will be used in partnership with top pharmaceutical companies. Key technologies React (frontend) TypeScript (frontend) FastAPI (backend) Postgres (database) Location San Francisco (Brisbane), California

Join Arena IntelligenceAt Arena Intelligence, we are pioneers in assessing the real-world performance of AI models. Founded by esteemed researchers from UC Berkeley's SkyLab, our goal is to enhance and measure the capabilities of AI technologies for practical applications.Each month, millions leverage Arena Intelligence to understand frontier system dynamics, using our community's insights to foster transparent, rigorous, and human-centric evaluations. Leading organizations and AI laboratories depend on our assessments to gauge real-world reliability, alignment, and implications. Our leaderboards set the benchmark for AI performance, earning trust from industry leaders and influencing global discussions on model reliability and advancements.Our team comprises researchers, engineers, scholars, and innovators from renowned institutions such as UC Berkeley, Google, Stanford, DeepMind, and Discord. We prioritize truth-seeking, agility, and craftsmanship, valuing curiosity and impactful contributions over hierarchy. We're fostering a workplace where thoughtful and diverse individuals can excel. Each team member is a domain expert, contributing to an environment rich in excellence, energy, and focus.Role OverviewWe are looking for a Senior Full-Stack Product Engineer to spearhead the technical design and development of AI-focused products within our platform. This role involves taking ownership of features from inception to deployment—encompassing the proposal of technical solutions, implementation of core product workflows, and analysis of new functionalities' impacts. Ideal candidates should possess substantial experience in constructing reliable business logic at scale and be enthusiastic about influencing user interaction with state-of-the-art AI models.

Join Anduril Industries as a Senior Full Stack Software Engineer where you will play a crucial role in developing cutting-edge software solutions that enhance national security. You will work within a dynamic team of engineers and contribute to the design, development, and deployment of innovative applications across various platforms.

Why Join Brex?At Brex, we are redefining how companies manage their spending through our AI-driven spend platform. Our integrated solutions, including corporate cards, banking, and global payment systems, empower businesses—ranging from startups to large enterprises like DoorDash, Flexport, and Compass—to effectively control their expenses and enhance operational efficiency.Joining Brex means being part of an innovative environment where you can challenge yourself, disrupt conventional thinking, and collaborate with some of the industry's brightest talents. We are dedicated to fostering a diverse team and inclusive culture, believing that your potential should be limited only by your dreams. We provide you with the tools, resources, and support necessary for your professional growth.Engineering at BrexOur engineering division focuses on creating scalable systems with purpose and speed. Our collaborative teams across Software, Data, Security, and IT work with high autonomy, tackling complex technical challenges and striving for excellence in every aspect, from architecture to deployment. Here, engineering is not just a job—it's a craft that cultivates leadership among builders.Your RoleAs a Senior Full Stack Software Engineer on the Task Workflows Platform team, you will develop and enhance the foundational infrastructure that supports crucial user experiences at Brex. Your responsibilities will include working on a diverse range of platforms, such as our multi-channel notifications engine, collaborative commenting system, and dynamic workflow rule builder. You will be instrumental in transitioning our task orchestration framework from a centralized model to more specialized solutions tailored for specific product domains.You will confront intricate full-stack challenges, from designing scalable backend APIs and automation rule engines to developing intuitive frontend user experiences for domain-specific task interfaces and workflow builders. Beyond core platform duties, your contributions will significantly influence broader product experiences, including utilizing AI to enhance user workflows and supporting the ongoing evolution of our productivity tools across web and mobile platforms.Work EnvironmentThis position is located in our San Francisco office. We adopt a hybrid work model that combines the dynamic interactions of in-office work with the flexibility of remote arrangements. Currently, we require a minimum of three coordinated days in the office each week.

Join Our Team at Owner.comAt Owner.com, we are revolutionizing the way local restaurants grow through our innovative AI growth system, designed specifically for their needs.Our AI enhances SEO, marketing, and online ordering systems to maximize first-party orders, empowering small business owners with a user-friendly platform managed by experts. We provide a suite of tools that levels the playing field against larger chains.Our VisionWe aim to enable independent restaurants to thrive online, and our vision extends beyond them. Many local businesses face similar challenges, and we aspire to provide solutions that can assist them as well. Our goal is to develop technology that tens of millions of local business owners can leverage for success in the digital landscape.Our AchievementsSince our inception in 2020, we have generated substantial revenue and facilitated over half a billion dollars in online orders. Over 20,000 restaurant owners have benefited from our services, saving nearly $200 million in fees.Our TeamComprising top talent from leading companies in the SMB software sector, our team is poised for rapid growth as we expand further in 2026.Work EnvironmentAs a remote-first company headquartered in San Francisco with a sales hub in Toronto, we foster a flexible work culture. Most of our team members are distributed globally. For specific roles, we encourage in-person collaboration, so please consult with your recruiter regarding location details.

At Sift, we are transforming the landscape of modern machine development, testing, and operation. Our cutting-edge platform empowers engineers with real-time observability over high-frequency telemetry, effectively eliminating bottlenecks and facilitating quicker, more reliable development processes.Founded by innovators from SpaceX, Google, and Palantir, Sift emerged from our groundbreaking work on Dragon, Falcon, Starlink, and Starship at SpaceX, where the demands for scalable telemetry and mission reliability necessitated advanced infrastructure. We are dedicated to mission-critical systems where precision and scalability are essential.As an early engineer at Sift, you will not only write code but also play a vital role in architecting solutions, shaping the product vision, and influencing the company's culture, all while tackling significant engineering challenges. If you are eager to build foundational systems that support complex machines from the ground up, we invite you to connect with us.

Join Cloudflare as a Senior Full Stack Software Engineer and be at the forefront of our mission to help build a better Internet. We are looking for talented engineers who thrive in a collaborative environment and are eager to tackle complex challenges.Your role will involve designing, developing, and optimizing applications across the full stack. You will work closely with cross-functional teams to create innovative solutions that enhance our platform's capabilities.

Senior Full Stack Software Engineer Location: San Diego, CA (Hybrid: Four Days in Office) Note: This is a full-time position, and we do not provide C2C or C2H employment arrangements. Acrisure Innovation is on a mission to revolutionize the $6 trillion insurance industry by developing software solutions that promote intelligent risk sharing and foster a more vibrant economy. Our goal is to transform the processes of insurance distribution and underwriting into a scientific endeavor. At the heart of our operations is our cutting-edge technology: we are creating a digital marketplace for risk management, which serves as the backbone of Acrisure. Recognized as one of the world's top 10 insurance brokerages and the fastest-growing firm in the sector, we leverage technology to redefine how risk is understood and managed. We believe our innovative approach can break down the historical barriers that have limited scalability and learning in the insurance space. Our team consists of exceptionally talented engineers from diverse backgrounds. With experience from industry giants like Google and Amazon, as well as high-frequency trading firms such as Two Sigma and Jump Trading, our engineers bring a wealth of knowledge to our projects. The Role: As a Senior Full Stack Software Engineer at Acrisure Innovation, you will play a crucial role in developing world-class software aimed at transforming the insurance industry. You will lead the design, implementation, and deployment of software solutions while collaborating closely with a cross-functional team that includes software engineers, product managers, and designers. Your efforts will focus on identifying and delivering innovative features, systems, and products that enhance our understanding of risk and provide actionable insights for engagement in the marketplace. As a successful candidate, you will utilize state-of-the-art tools and, when necessary, create new solutions to meet challenges, all while demonstrating a sense of urgency and agility to deliver impactful results. Your passion for using technology to improve lives and delight users will help us bring our vision to fruition. Our technology is built on Google Cloud and utilizes Kubernetes, integrating various services within that environment. Join us in harnessing the power of technology to reshape the insurance landscape.

Join Binti as a Senior Full Stack Software Engineer and play a crucial role in developing innovative software solutions that enhance our mission to streamline the adoption process. You will be responsible for designing, developing, and maintaining our web applications, ensuring optimal performance and user experience.In this position, you will collaborate with cross-functional teams, participate in all phases of the software development lifecycle, and mentor junior developers. If you are passionate about building scalable applications and are eager to solve complex problems, we want to hear from you!

Join the dynamic Software Systems Infrastructure team at Zoox, where we empower the Software Systems organization with innovative internal tooling, streamlined development processes, and a commitment to ensuring all safety-critical software adheres to the highest production standards for autonomous vehicles. We pride ourselves on being a fast-paced, full-stack engineering team dedicated to transforming transportation.In this pivotal role, you will play a key part in establishing robust infrastructure and designing cutting-edge software tools that automate, track, and audit essential processes necessary for the development of safety-critical software. Your efforts will contribute to groundbreaking advancements in 21st-century transportation. By leveraging best practices from avionics, automotive, and other safety-critical sectors, you will collaborate with a diverse group of software, systems, and firmware engineers across Zoox, working on everything from state-of-the-art AI Perception technologies to critical RTOS and middleware components.

About CyngnLocated in Mountain View, CA, Cyngn Inc. is an innovative publicly-traded company at the forefront of autonomous technology. We specialize in deploying self-driving industrial vehicles, including forklifts and tuggers, across factories, warehouses, and various facilities in North America. As we advance this groundbreaking technology, we seek dynamic, experienced leaders to join our mission. If you enjoy building, experimenting, and collaborating with a team of dedicated and passionate individuals, Cyngn is the perfect fit for you. Reasons to consider joining us:A Unique Blend of Small and Large Company Dynamics.With a team of fewer than 100 employees, Cyngn embodies the spirited energy of a startup while offering the stability of a publicly traded entity. Our employees benefit from close-knit teamwork and mentorship from leaders, combined with the liquidity benefits of our publicly-traded stock.Build and Deploy Real Solutions.Our autonomous vehicles are not mere concepts; they are actively in use by real clients today. This means that your contributions will lead to immediate, visible impacts in the industry.A Human-Centric Workspace.We foster an inclusive and diverse team of intelligent and compassionate individuals. Our culture emphasizes collaboration and trust, where every team member's perspective is valued and drives our innovation forward.About the Role:As a Senior Full Stack Software Engineer at Cyngn, you will be pivotal in developing our cutting-edge fleet management system for autonomous vehicles. You will be instrumental in creating a scalable, high-performance SaaS platform that facilitates real-time monitoring and control of our autonomous fleet. Your versatile skill set will empower you to navigate seamlessly between backend and frontend development tasks, ensuring the delivery of an integrated and efficient system that enhances our customers' automated workflows and boosts operational efficiency.

Join Veeva Systems, a pioneering force in industry cloud solutions dedicated to expediting the delivery of therapies to patients. As one of the fastest-growing SaaS companies in history, we achieved over $2 billion in revenue last fiscal year and have incredible growth potential ahead.Our core values guide us: Do the Right Thing, Customer Success, Employee Success, and Speed. We are not just any public company; we made history in 2021 by becoming a public benefit corporation (PBC), committed to balancing the needs of our customers, employees, society, and investors.As a Work Anywhere company, we enable you to choose your ideal work environment, whether from home or in the office.Join us in transforming the life sciences industry and making a meaningful impact on our customers, employees, and communities.