Senior Fullstack Engineer Expansion Tooling jobs in San Francisco – Browse 6,691 openings on RoboApply Jobs

Senior Fullstack Engineer Expansion Tooling jobs in San Francisco

Open roles matching “Senior Fullstack Engineer Expansion Tooling” with location signals for San Francisco. 6,691 active listings on RoboApply Jobs.

6,691 jobs found

1 - 20 of 6,691 Jobs
Apply
companyWaymo LLC logo
Full-time|On-site|San Francisco, CA, USA; Mountain View, CA, USA

Join Waymo as a Senior Fullstack Engineer in our Expansion Tooling team, where you will play a crucial role in developing and enhancing our tools that facilitate the expansion of our autonomous vehicle services. This position offers an exciting opportunity to work at the intersection of technology and innovation while shaping the future of transportation.

Mar 17, 2026
Apply
companyKiddom logo
Full-time|On-site|San Francisco or New York

About KiddomKiddom is an innovative educational platform dedicated to fostering student equity and growth by integrating top-tier instructional materials with engaging digital learning experiences. With unparalleled curriculum management tools, Kiddom enables schools and districts to take charge of their curriculum, creating customized learning experiences that cater to the unique needs and aspirations of their communities. Our high-quality curriculum comes equipped with powerful insights for teachers and leaders, driving the ongoing enhancement of instructional strategies, school and district programming, and professional development.The Tooling team at Kiddom is responsible for developing and maintaining the essential systems that empower all engineering teams to produce reliable, scalable, and efficient software solutions. As a Senior Backend Engineer on this team, you will concentrate on crafting backend services, automation frameworks, and internal developer tools that enhance the speed and reliability of our entire platform.Your contributions will significantly influence how Kiddom engineers design, deploy, and monitor systems at scale, with a strong focus on clean, maintainable, and testable code, primarily in Python, with additional opportunities to work with GoLang.

Nov 12, 2025
Apply
companyComplete logo
Full-time|On-site|San Francisco Office

Complete is dedicated to transforming compensation into a strategic advantage for the most impactful companies globally. We're revolutionizing compensation processes by moving away from outdated spreadsheets to modern, efficient systems. Our solutions encompass comprehensive compensation cycle planning, leveling, total rewards statements for employees, and interactive candidate offers, among other features!Why Join Us at Complete?We understand that effective compensation strategies are vital to a company's success and represent one of its largest expenditures. Many enterprises struggle to develop and implement a solid compensation strategy, which can lead to significant financial and operational inefficiencies. We believe that innovative compensation approaches are the key to sustainable success.Complete is proudly supported by Accel and Y Combinator, and we are fortunate to have esteemed advisors like Will Larson (CTO of Carta), Eric Sagar (COO of Plaid), and Mathilde Collin (CEO of Front).About Our Team We are passionate builders focused on delivering quality. We believe that 21st-century software should be intuitive and require minimal training. Our culture is characterized by low ego and rapid execution. Success doesn't come from large teams but from focused efforts. Our tight-knit team of fewer than 10 people combines exceptional product and business expertise, allowing us to compete effectively in the market. This is your opportunity to join us at a pivotal moment!⭐ Our clientele ranges from innovative startups like Linear and Brex to established public companies like Roblox, and we are continually adding remarkable names to our roster. We thrive in a collaborative environment at our San Francisco office, located near Embarcadero BART, where we work together in person 4-5 days a week. We believe that bringing top talent together in a creative space is the fastest route to success.Your RoleAt this exciting juncture, we are seeking Senior or Staff Engineers to help us scale towards $XXM+ in ARR. Ideal candidates are those who are proactive, enjoy working with urgency, and have a strong focus on customer outcomes. You will have the opportunity to make significant contributions in three key areas:Ownership: We are looking for experienced individuals who can take charge of projects and drive them to successful completion.

Aug 14, 2024
Apply
companySprig logo
Full-time|$180K/yr - $260K/yr|Hybrid|San Francisco, CA

About SprigSprig is revolutionizing experience research with its AI-driven successor to traditional survey tools such as Qualtrics, Medallia, and SurveyMonkey. We envision a future where experience research is efficient, smart, and seamlessly integrated into the product development process.Our mission is to simplify deep customer understanding, making it continuously accessible. With Sprig, product teams transition from guesswork to clear insights, utilizing AI to unveil critical data, streamline workflows, and empower teams to deliver outstanding customer experiences in real-time.Renowned companies like Notion, Figma, Coinbase, and TripAdvisor leverage Sprig to foster deeper customer relationships. We are rapidly scaling towards $100M ARR, introducing innovative AI-driven features, and broadening our influence among the world’s leading companies.If you thrive on ambitious concepts, fast-paced growth, and the chance to reshape an entire industry, we invite you to connect with us.About the RoleAs part of Sprig's mission, we are assembling a top-tier product experience platform that empowers leading businesses to gain comprehensive insights into user interactions with their products at scale. The Core team is responsible for the complete experience of developing studies and deploying them across client applications using an installable client-side SDK.Our fullstack engineers play a crucial role in designing and implementing features across a JavaScript SDK client, managing APIs that handle thousands of requests per second, and creating an intuitive user interface for study creation. You will oversee web application releases and SDK versions across multiple platforms, prioritizing an optimal developer experience for thousands of developers utilizing our tools.Your contributions will reach millions of users globally.This position is based in San Francisco, requiring three days of in-office work.

Jan 27, 2026
Apply
companyOura Health logo
Full-time|Hybrid|Hybrid - San Francisco, California

As a Senior Tooling Quality Engineer at Oura Health, you will play a pivotal role in ensuring the precision and reliability of our tooling processes. You will collaborate with cross-functional teams to refine tooling methodologies, enhance quality control protocols, and drive continuous improvement initiatives. Your expertise will be vital in maintaining high standards of quality in our manufacturing processes.

Mar 6, 2026
Apply
companyDatabricks logo
Full-time|$166K/yr - $225K/yr|On-site|Mountain View, California; San Francisco, California

P-160 About Us At Databricks, we are dedicated to empowering data teams to tackle some of the most challenging problems in the world — from transforming the next mode of transportation into a reality to expediting the development of medical innovations. We achieve this by developing and operating the leading Data Intelligence Platform, enabling our customers to leverage profound data insights that enhance their operations. Founded by engineers with a customer-centric approach, we eagerly embrace every opportunity to confront technical challenges, whether it involves designing next-generation UI/UX interfaces for data interaction or scaling our services and infrastructure across millions of virtual machines. Our journey is just beginning. As a Senior Full Stack Software Engineer, you will collaborate with your team and product management to simplify data insights for our users. We seek engineers who are customer-focused and capable of overseeing the entire product lifecycle, extending beyond mere technical execution. You will lay the groundwork for creating robust, scalable, and delightful products. Below are examples of experiences you will design for our customers, facilitating the complete project lifecycle from data loading and results visualization to statistical model creation and production deployment: User-friendly workflows for creating, configuring, and managing large-scale compute clusters, networks, and data sources. Develop, deploy, test, and upgrade intricate data pipelines, featuring powerful visual data graphs. Streamlined onboarding and management for all organizational members to adopt a data-driven approach. Exceptional SQL-centric data exploration and dashboarding experience on Databricks. An interactive environment for collaborative data projects at scale, with a straightforward path to production.

Jan 30, 2026
Apply
companyFlex logo
Full-time|Remote|New York, New York, United States; Remote (U.S.); San Francisco, California, United States

Flex is hiring a Senior Fullstack Software Engineer to join the Risk Engineering team. This position can be based in New York, San Francisco, or remote within the U.S. Role overview This role centers on designing, building, and maintaining applications that support Flex’s risk management efforts. The Senior Fullstack Software Engineer will collaborate closely with teammates to deliver solutions that improve how risk is assessed and managed across the company. What you will do Develop and maintain both frontend and backend components for risk-related applications Work with team members to design features and solve technical challenges Contribute to projects from initial planning through deployment Requirements Experience in both frontend and backend software development Ability to drive projects through the full development lifecycle Interest in building solutions that support risk management

Apr 28, 2026
Apply
companyKrea logo
Full-time|On-site|San Francisco

About KreaAt Krea, we are revolutionizing the world of creativity through next-generation AI tools designed specifically for creatives. Our mission is to empower artistic expression by making AI intuitive and manageable, ensuring it enhances rather than replaces human creativity.We envision AI as a versatile medium that enables self-expression across diverse formats including text, images, video, sound, and even 3D. At Krea, we are dedicated to developing smarter tools that harness this exciting medium effectively.Your Role:Develop and sustain APIs and user interface flows for web and mobile applications using Svelte/SvelteKit and TypeScript.Create engaging and responsive front-end experiences, including drag-and-drop functionality, real-time canvas interactions, and seamless UI animations.Enhance front-end performance by minimizing render latency, utilizing virtual DOM techniques for profiling, and ensuring smooth WebSocket image streams.Design and maintain backend services using Node.js, along with database models incorporating Postgres and Redis caching strategies.Initiate a Public API project aimed at making Krea's AI models accessible to millions of developers.Troubleshoot HTTP/3 and WebSocket issues from both client and server perspectives.Drive real-time image and video generation pipelines with low-latency APIs.Improve system observability and alerting using OpenTelemetry tools.Implement enterprise-level features such as Audit Logs, SAML/SSO, and SCIM provisioning.Bonus: Scale our infrastructure architecture by leveraging your deep understanding of AWS EKS GPU clusters or Kubernetes operators.

Jul 31, 2025
Apply
companyPlaid logo
Full-time|On-site|San Francisco

At Plaid, we envision a future where financial interactions are seamless and empowering. Our mission is to revolutionize how individuals manage their finances through innovative tools and experiences utilized by thousands of developers. We support millions in achieving healthier financial lives by enabling connections to their financial accounts through the apps they love. Collaborating with leading companies such as Venmo, SoFi, and many Fortune 500 firms, our network encompasses over 12,000 financial institutions across the U.S., Canada, the UK, and Europe. Established in 2013, our headquarters is in San Francisco, with additional offices in New York, Washington D.C., London, and Amsterdam.As a Senior Fullstack Software Engineer at Plaid, you will play a pivotal role in shaping the future of financial access. You will design and develop robust systems and engaging user experiences that facilitate millions of connections to their finances. Your expertise will span the entire technology stack, allowing you to create scalable backend services and APIs while also delivering intuitive frontend experiences that bring our solutions to life.This position is perfect for engineers who thrive on alternating between backend problem-solving and frontend design, and who are eager to amplify their influence across both domains. You will work collaboratively with product managers, designers, and fellow engineers to deliver reliable, secure, and user-friendly products. At Plaid, you will take ownership early, contribute to key architectural decisions, and witness your contributions impacting millions of users.

Sep 24, 2024
Apply
companyWoflow logo
Full-time|Hybrid|San Fransisco: HQ, Hybrid

Woflow is an innovative technology startup dedicated to developing cutting-edge products and solutions for the rapidly evolving on-demand economy. Our flagship offering is a comprehensive platform that empowers our clients to seamlessly request and obtain structured merchant data, including menus, images, and store details, through a blend of web applications and public APIs. At the core of our operations, advanced machine learning and artificial intelligence models work in tandem with an automated distributed workforce management system. Proudly, we are recognized as the world's first Merchant Data Platform.We cater to a diverse clientele, including food delivery services, online ordering systems, and e-commerce marketplaces, providing the robust data infrastructure necessary for their growth and scalability.As a Senior Fullstack Engineer at Woflow, you will play a pivotal role in guiding the evolution of our products and the overall direction of the company. Your day-to-day responsibilities will involve planning innovative features, owning product development from inception to completion, and collaborating with the operations team to address and resolve customer concerns. To excel in this role, a passion for coding, meticulous attention to detail, and a commitment to delivering projects with pride are essential.Key Responsibilities:Collaborate across the technology organization, including engineering, product, and devops/data science teams, to deliver cohesive and successful products.Engage directly with the operations team to ensure our data infrastructure remains efficient and effective.Commit to providing an exceptional user experience by writing clean, maintainable, and efficient code.Thrive in a fast-paced, agile environment where your contributions will directly impact our success.Required Qualifications:A minimum of 5 years of professional software development experience.A strong passion for coding and a continual desire to learn and grow.Proven ability to deliver projects with exceptional attention to detail.Preferred Qualifications:Experience with Ruby on Rails.Proficiency in React.Familiarity with Apollo, GraphQL, and web crawling technologies.

Oct 16, 2024
Apply
companyPatreon, Inc. logo
Full-time|Remote|San Francisco

Join Patreon as a Senior Fullstack Engineer focused on enhancing our community features. In this pivotal role, you will work collaboratively to design, develop, and maintain innovative solutions that empower creators and foster engagement within our platform. Your expertise in both front-end and back-end technologies will be essential in driving impactful projects that resonate with our user base.

Mar 11, 2026
Apply
companyNooks logo
Full Time|On-site|San Francisco

About Nooks.ai:Nooks is revolutionizing sales with its AI Sales Assistant Platform (ASAP), designed to streamline tedious tasks so that sales representatives can concentrate on the human aspects of selling, ultimately driving greater sales pipelines. Trusted by thousands of sales professionals, Nooks has significantly contributed to achieving quotas, saving customers countless hours, and generating substantial revenue streams for organizations including Hubspot, Rippling, and Toast.Our high-performing team has successfully raised over $70M from leading venture capitalists, including Kleiner Perkins, marking their first investment in sales technology in over a decade. Over the past two years, we have quadrupled our Annual Recurring Revenue (ARR) and aim to triple it again this year.Learn more at Nooks.ai.About the Role:We are in search of a talented Senior Fullstack Engineer to join our Core Dialer team. This role entails enhancing the core user-facing dialer experience—encompassing dialing, task management, configurations, connected views, smart lists, and browser extensions—while ensuring optimal speed and reliability for our sales teams.Your Responsibilities:Develop and maintain essential dialer features utilized daily by sales representatives.Collaborate closely with design and product teams to deliver polished user experience enhancements.Optimize backend APIs and frontend performance to minimize latency and complexity.Work cross-functionally with Integrations and Voice Infrastructure teams to ensure seamless integration of workflows.Take ownership of dialer experience systems, progressing towards senior leadership within the team.Gain valuable exposure to distributed systems and their integrations.Qualifications:3 to 5 years of engineering experience, preferably in SaaS product development.Proficient in modern frontend technologies (React) and backend frameworks (Node/TypeScript, REST APIs).Strong foundation in data modeling and caching solutions (Postgres, Redis).Passionate about user engagement and agile iteration.At Nooks, we offer competitive compensation for eligible positions, including a base salary, equity, and comprehensive benefits package.

Nov 13, 2025
Apply
company
Full-time|On-site|San Francisco HQ

Join Our Team at Triumph ArcadeAt Triumph Arcade, we are revolutionizing mobile gaming by allowing players to wager and win real money, participate in massive multiplayer games, and engage in social tournaments. Our flagship app has rapidly ascended to the top of its App Store category, achieving remarkable month-over-month growth in both revenue and active users. As we continue to expand, we are excited to launch innovative products like Rips, our successful collectibles app that is breaking new ground in the industry.Supported by leading venture capital firms such as Goodwater Capital, General Catalyst, and DraftKings Drive Fund, Triumph Arcade is poised for incredible growth.Your RoleAs a Senior Fullstack Software Engineer on our web development team, you will play a crucial role in driving both revenue and company growth by transforming our successful mobile app into a robust web platform. You will take ownership of our end-to-end web stack, internal tools, and dashboard, building the infrastructure necessary to foster business opportunities. Your initial focus will be to deliver a web version of Rips, setting the groundwork for future web and Android applications. By establishing high standards for this new platform, you will push the limits of what it means to be a leader in our category.Your ResponsibilitiesDevelop and establish our web platform, laying down the foundation and standards for future web and Android applications.Leverage existing backend systems and infrastructure to construct a web version of Rips within a 3-6 month timeframe.Define best practices and standards for React development, with potential opportunities to work on React Native.Oversee the internal tools and dashboard, implementing enhancements that improve team efficiency and facilitate data-driven decision-making.Collaborate with backend engineers to design APIs and data models, contributing to both API architecture and application performance.Enhance user experience through thoughtful motion design, micro-interactions, and responsive design that feels intuitive and native.

Feb 5, 2026
Apply
companyZencastr logo
Full-time|Remote|San Francisco Office

Join Zencastr in our mission to amplify voices across the globe. If you're eager to innovate and revolutionize the podcasting landscape, we invite you to be part of our dynamic, fully remote team of forward-thinkers passionate about making a difference one voice at a time.What You’ll Bring:Proficient in Node.js with a solid grasp of JavaScript fundamentals.Strong understanding of computer science principles, including memory management and algorithmic complexity.Aspirations to innovate, whether it’s through entrepreneurial ventures or solving complex tech challenges.Enjoyment in coding with JavaScript or TypeScript.A keen eye for performance optimization in applications.Comfortable navigating both browser environments and Node.js runtimes.A collaborative spirit and strong communication skills.What Makes You Stand Out:A passion for developing high-performance applications.Notable contributions to open source projects.Desire to thrive in a fast-growing startup environment with its inherent challenges.Empathy for end users, driving your advocacy for their needs during the development process.Commitment to maintaining high code quality and best practices in engineering.Why Zencastr?Collaborate with world-class engineers and designers in a fully remote setup.Thrive in an agile, rapidly evolving work environment.Receive equity reflective of your contributions in a profitable company.Enjoy comprehensive health insurance.Face unique challenges supported by talented colleagues.

Aug 8, 2025
Apply
company
Full-time|$225K/yr - $315K/yr|On-site|San Francisco

About Engineering at Ivo Ivo engineers have led the way in legal technology, introducing several industry firsts: AI agent for automated editing in MS Word (2023) Agentic RAG approaches replacing traditional embedding models (2023) Large-scale legal fact extraction powered by LLMs (2024) Legal assistant for accurate search across vast contract databases (2024) Clustering of related legal documents from the same family (2025) Automated deviation analysis to surface hidden risks in large contract sets (2025) Combining contracts and amendments into time series of composite contracts (2025) Role Overview The Senior Fullstack Software Engineer will design, build, and launch generative AI products that reshape legal workflows. This role covers both front-end and back-end development, with a focus on scale and reliability. Develop full stack generative AI features Deliver performant user interfaces and backend systems capable of processing and analyzing millions of contracts Create data pipelines that coordinate LLMs, extraction, and clustering algorithms Work closely with designers, legal experts, and engineers to change how legal teams operate with AI Our Mission Most major businesses have in-house legal teams who face heavy workloads, tight deadlines, and the repetitive task of reading contracts. Until recently, technology offered little relief. With LLMs, Ivo aims to give lawyers back their time. The mission: restore work-life balance for legal professionals by automating legal tasks through an AI-native platform. Ivo’s software is highly regarded in the industry. Despite strong competition, the company holds an 85% trial win rate, the highest in the field. The team is committed to making a real difference, and there is much more ahead. Why Join Ivo Engineers at Ivo care deeply about code quality and the impact of their work. The team values solutions that make a tangible difference in people’s lives. Location San Francisco

Apr 14, 2026
Apply
companyPostman Inc. logo
Full-time|On-site|San Francisco, California, United States

Postman Inc. seeks a Senior Fullstack Software Engineer in San Francisco, California, to help advance the future of API collaboration. This role involves working across both front-end and back-end systems, with a focus on building reliable, scalable solutions that support the company’s platform. Responsibilities Design and develop features across the full technology stack, from user interfaces to backend services Collaborate with cross-functional teams to deliver improvements that enhance user experience and workflow efficiency Contribute to architectural decisions and drive ongoing improvements in software design Mentor junior engineers and support the growth of technical expertise within the team Requirements Proven experience building and maintaining fullstack applications Strong understanding of both front-end and back-end technologies Ability to work effectively with engineers, designers, and product managers Interest in shaping technical direction and contributing to team development

Apr 27, 2026
Apply
companySigma Computing logo
Full-time|$150K/yr - $240K/yr|On-site|San Francisco, CA

Role Overview Sigma Computing builds a high-performance platform that helps businesses work with modern data architectures. The engineering team is growing and looking for experienced fullstack engineers who enjoy solving complex problems and building solutions across the stack. The team’s mission: make data accessible for everyone. What You Will Do Work on challenging technical problems to deliver fast, interactive analytics and workflow experiences using modern data warehouses. Build software with tools and languages such as Rust, Go, GraphQL, and TypeScript. Design algorithms and techniques that improve performance and interactivity for analytics used by some of the world’s largest companies. Investigate and resolve product or system issues by identifying root causes. Develop and launch new features to support a growing base of users. Collaborate with teams across infrastructure, design, product, customer support, sales, and marketing to create new product capabilities. Location This position is based in San Francisco, CA.

Apr 25, 2026
Apply
companyAlembic logo
Full-time|On-site|San Francisco HQ

About the RoleWe are seeking a highly skilled Senior Automation and Tools Engineer to enhance our platform's scalability, reliability, observability, and operational excellence. In this pivotal role, you will collaborate with engineers and data scientists to design, automate, and sustain the infrastructure that drives our core platform, which includes data pipelines, machine learning workloads, and real-time analytics systems.This is a hands-on, impactful position with visibility across the tech stack, providing a unique opportunity to influence the future of our infrastructure and operations.Key ResponsibilitiesCollaborate closely with Site Reliability Engineers (SREs) and developers to automate and manage datacenter and cloud-based infrastructure, focusing on build and deployment systems, as well as configuration management.Enhance system reliability and performance through automation, observability, and proactive capacity planning.Develop and configure tools for datacenter provisioning, configuration management, and observability using both standard and custom tools.Elevate developer experience by providing self-service tools.Implement and uphold monitoring, alerting, and incident response processes including Service Level Objectives (SLOs), runbooks, and on-call rotations.Foster collaboration across engineering and data science teams to cultivate a culture of performance and reliability.Maintain security, compliance, and operational readiness across our physical and cloud infrastructures.Lead post-incident reviews and continuous improvement initiatives.

Dec 22, 2025
Apply
companyHandshake logo
Full-time|On-site|San Francisco, CA

Join Handshake as a Senior Software Engineer specializing in Operator Tooling. In this role, you will be instrumental in enhancing our operational efficiency through innovative tooling solutions. Your expertise will help streamline processes and empower our operators to deliver exceptional outcomes.

Mar 25, 2026
Apply
companyScale AI logo
Full-time|$216.2K/yr - $270.3K/yr|On-site|San Francisco, CA

Join Scale AI as a Senior Software Engineer where you will play a crucial role in designing, developing, and managing secure and scalable infrastructure that empowers our team to excel in their work. You will collaborate with an innovative, agile, and solution-focused team dedicated to automating processes in identity and access management, endpoint management, and our extensive SaaS ecosystem. The right candidate will harness a variety of internal and external platforms to create applications, Slackbots, and dashboards for internal users while optimizing intricate workflows through automation. Your contributions will significantly enhance the operational efficiency of all General and Administrative teams within the company.Your Impact:As a full-stack engineer (60% backend / 40% frontend), you’ll collaborate with your team to create exceptional tools and applications for both internal use and external partners.You will be responsible for designing, developing, testing, and supporting full-stack applications on cloud-native distributed systems.You will establish real-time integrations with SaaS platforms across the organization.Develop a comprehensive quality framework/unit tests to ensure product performance, quality, and load handling, while effectively debugging and identifying system issues.Engage with broader teams, participate in engineering councils, conduct code reviews, and enhance our delivery processes.Work closely with the IAM team to manage cloud-based identity (Okta) and access controls, ensuring adherence to security protocols and standards for internal applications.Collaborate cross-functionally to identify opportunities for technological improvements and implement self-service solutions.

Mar 26, 2026

Sign in to browse more jobs

Create account — see all 6,691 results

Tailoring 0 resumes

We'll move completed jobs to Ready to Apply automatically.