Frontend Fullstack Software Engineer jobs in San Mateo – Browse 444 openings on RoboApply Jobs

Frontend Fullstack Software Engineer jobs in San Mateo

Open roles matching “Frontend Fullstack Software Engineer” with location signals for San Mateo. 444 active listings on RoboApply Jobs.

444 jobs found

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WisdomAI logo
Full-time|On-site|San Mateo

About WisdomAIAt WisdomAI, we are dedicated to democratizing access to data and insights for everyone. We harness the transformative potential of generative AI to revolutionize how employees obtain insights within their organizations. This is an exciting phase for us, as we are currently serving multiple Fortune 100 clients while still being at a stage where…

Feb 3, 2026
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Roblox Corporation logo
Full-time|On-site|San Mateo, CA, United States

Join Roblox as a Senior Fullstack Software Engineer in our Connections team, where you will have the opportunity to innovate and enhance user experiences on one of the world's largest social platforms for play. You will be responsible for developing robust front-end and back-end solutions that engage millions of users globally. Your role will involve collaborating with cross-functional teams to design, implement, and maintain high-quality software solutions.

Mar 27, 2026
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Maxima logo
Full-time|On-site|San Mateo

Company OverviewAt Maxima, we are pioneering an innovative AI platform designed to revolutionize enterprise accounting processes. Our advanced system efficiently manages large volumes of financial data and complex accounting workflows, ensuring precision and reliability.We are committed to solving some of the most challenging issues in enterprise automation and have assembled a top-tier engineering team, featuring industry veterans from Robinhood, Glean, Google, Netflix, and Meta. Maxima is proudly backed by esteemed investors such as Kleiner Perkins and Redpoint Ventures, and we are trusted by leading customers including Scale AI and Rippling.Role SummaryAs a Frontend Engineer at Maxima, you will create user-friendly interfaces crucial for our advanced accounting solutions. This position requires close collaboration with product managers, designers, and backend engineers. You will also engage with customers directly to facilitate the launch of new features. We prioritize engineers who are passionate about user experience, as your contributions will significantly influence our product's direction.

Nov 7, 2025
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Notable logo
Full-time|On-site|San Mateo, CA

At Notable, we are at the forefront of revolutionizing healthcare through our advanced AI platform, designed to enhance workforce productivity. Our innovative solutions empower healthcare systems, hospitals, and payers to elevate care quality, bridge gaps in patient services, and drive member engagement—all while scaling operations without the need for additional personnel.Our mission is clear: to enrich the lives of patients, healthcare providers, and staff alike—creating a positive impact on healthcare for everyone. This isn't merely an aspiration; it's a reality we work towards daily. As part of Notable, you will join a dedicated team committed to transforming healthcare and aiming to positively influence the lives of 100 million patients.We cultivate a purposeful culture that empowers each team member to excel in their roles, collaborate with top talent, and enjoy the journey of achieving significant milestones together.Position Overview:We are seeking a talented Senior Fullstack Software Engineer to join our dynamic engineering team. In this role, you will utilize your extensive expertise to design, develop, and maintain high-performing web applications that significantly enhance healthcare delivery. Collaboration with cross-functional teams will be key as you implement innovative solutions, all aimed at improving patient care and optimizing healthcare workflows.Your Responsibilities:Architect and develop responsive, high-performance web applications that serve as the core of our healthcare AI platform.Engage with product managers and UX/UI designers to translate business needs into technical designs and intuitive user interfaces.Create and enhance RESTful APIs to facilitate seamless integrations with various healthcare systems and third-party services.Apply best practices for code quality, testing, and continuous integration/continuous deployment (CI/CD) to ensure software reliability and maintainability.Diagnose and resolve technical challenges across the entire stack, ensuring optimal front-end and back-end performance.Mentor junior engineers, offering guidance and expertise to nurture their development and enhance overall team capabilities.Collaborate closely with our data science team to deploy machine learning (ML) and natural language processing (NLP) algorithms into production applications, driving innovation in healthcare solutions.

Aug 14, 2024
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Roblox logo
Full-time|$242.1K/yr - $293.8K/yr|On-site|San Mateo, CA, United States

At Roblox, we engage tens of millions of users daily, allowing them to explore, create, play, and connect with friends in immersive 3D digital experiences, all crafted by our vibrant global community of developers and creators.We are dedicated to building innovative tools and platforms that empower our community to bring their imaginative experiences to life. Our vision is to transform how individuals connect, regardless of their location or device. Join us on our mission to connect a billion people with positivity and civility, as we seek extraordinary talent to help realize this vision.A career at Roblox means you will shape the future of human interaction, tackle unique technical challenges at scale, and contribute to creating safer, more respectful shared experiences for all.About the Role:This pivotal role is part of our Consumer Platforms - Web & Backend team. You will play a key role in a significant initiative to modernize our web platform, leading a comprehensive migration from Angular to React. This position encompasses both frontend and backend responsibilities, maintaining essential microservices for website functionality and compliance. Your efforts will focus on enhancing frontend stability and resilience, while aiding the entire organization in adopting universal design components. Close collaboration with Design, Product, and other Engineering teams will ensure a substantial impact on user experience.Your Responsibilities:Drive systematic enhancements to our UI development processes and architecture.Collaborate with feature teams to deliver polished, high-quality UI implementations.Design, build, and maintain our design system in partnership with cross-functional teams, ensuring consistency and scalability across all products.Work closely with product designers to transform complex design concepts into efficient, high-performance code.Innovate and improve our component library and developer tools to enhance team productivity.Promote best practices for writing clean, maintainable, and well-documented code.Stay updated on industry trends in frontend and backend development, component-based frameworks, and UI/UX to drive continuous improvements.

Feb 10, 2026
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Genesis Therapeutics logo
Full-time|On-site|San Mateo, CA

Genesis Molecular AI is assembling an exceptional software engineering team dedicated to transforming drug discovery through innovative machine learning, advanced biophysical simulations, and computational chemistry. We are in search of passionate engineers eager to contribute to the development of groundbreaking medicines and play a pivotal role in enhancing our software platform.Your ResponsibilitiesLead the evolution of our full-stack platform utilized by computational chemists daily, encompassing data exploration, experiment management, and real-time visualization. You will create AI-driven workflows and modern interaction patterns to expedite insights from hypotheses.Develop and enhance tools for molecule and protein visualization, ML model analysis, and management of intricate chemical workflows.Collaborate with machine learning engineers and computational chemists to innovate and implement new computational techniques for predicting molecular properties.Expand our data infrastructure to accommodate billions of data points and numerous concurrent deep learning and molecular dynamics tasks.Your ProfileYou possess a deep analytical mindset, capable of reasoning from foundational principles while balancing meticulous detail with architectural vision, and you have a strong investigative drive to uncover the core of complex issues.You are comfortable managing challenges across the full stack, including frontend interfaces, backend services, data pipelines, and infrastructure.You have a proven track record of delivering production-ready code and driving projects from conception to completion with minimal supervision.You are excited to work at the convergence of software engineering, drug discovery, and machine learning.What We OfferA chance to work on impactful tools and products that are directly applied to expedite the discovery of new medicines.An environment of strong technical peers in AI, software development, and chemistry, all characterized by a blend of intellectual curiosity and humility. Our team engages in weekly discussions of 1-2 recent machine learning or chemistry papers to stay ahead and inspire innovative ideas.A competitive salary and equity package, along with comprehensive medical, dental, and vision insurance, and a 401(k) plan.About Genesis Molecular AIGenesis Molecular AI is pioneering the application of molecular AI technologies to revolutionize drug discovery, driving efficiency and effectiveness in the quest for new therapies.

Mar 3, 2026
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Roblox logo
Full-time|$242.1K/yr - $293.8K/yr|On-site|San Mateo, CA, United States

At Roblox, we invite you to join a vibrant community where millions of users come together daily to explore, create, play, learn, and connect through immersive 3D experiences crafted by our global network of developers. We are on a journey to revolutionize how people interact, regardless of their location or device, and we are looking for exceptional talent to help us connect a billion people with positivity and civility.As a Senior Software Engineer specializing in Consumer Frontend, you'll play a pivotal role in shaping the future of our frontend applications. You'll lead the architectural design and technical direction of our consumer-facing frontend stack, collaborating across teams and technologies to ensure our solutions are scalable and universal. This role will involve defining the intricate connections among our frontend components, optimizing data flow, and accelerating feature development while maintaining reliability.If you're passionate about laying the groundwork that enables numerous engineers to develop new features, and you thrive in creating user experiences that prioritize speed and stability, we want you on our team!

Feb 10, 2026
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Freshworks Inc. logo
Full-time|On-site|San Mateo

About the Role Freshworks is looking for a Senior Frontend Software Engineer in San Mateo. This role focuses on building web applications that make customer interactions smoother and more effective. Collaboration is central: engineers, designers, and product managers work closely to deliver reliable, high-quality software. What You Will Do Develop and refine user interfaces for web applications Work with team members to create solutions that improve customer experience Apply frontend expertise to design scalable, responsive features Who We’re Looking For Strong background in frontend technologies Experience architecting applications for usability and performance Comfort working in cross-functional teams

Apr 15, 2026
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Faros AI logo
Full-time|On-site|San Mateo

Our Mission At Faros AI, we are revolutionizing how engineering data is accessed and analyzed. Our operational data platform consolidates all engineering data into a cohesive view, granting teams remarkable insight throughout the software development lifecycle. We empower organizations with actionable insights, enabling them to operate with unparalleled efficiency.About the RoleWe are seeking a talented and experienced Lead Frontend Software Engineer to enhance our team. In this role, you will focus on the development and upkeep of the frontend of our SaaS product, employing cutting-edge web development technologies and methodologies. We value curiosity and encourage candidates to explore other aspects of the stack for a comprehensive understanding of our system architecture. Your role will also include mentoring team members and ensuring the team is equipped with the latest technologies and best practices.Key ResponsibilitiesLead the development of user-centric front-end solutions for our SaaS product using modern technologies and best practices.Collaborate with designers and back-end developers to deliver seamless user experiences.Enhance front-end performance and accessibility.Integrate open-source solutions as necessary.Troubleshoot, debug, and upgrade software components.Conduct testing and validation to guarantee software performance and reliability.Stay informed on the latest trends and technologies in front-end development.Mentor junior front-end developers and promote collaborative learning.Review code contributions from external contractors to ensure quality standards.Our ValuesIntegrity and Transparency: We prioritize honesty and transparency in our actions and communications.Excellence: We strive to excel in our capabilities rather than merely competing with others.Agility: We embrace learning and iteration over waiting for perfection.Accountability: We believe in taking ownership of our work and responsibilities.

Feb 27, 2026
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Roblox Corporation logo
Full-time|$196.8K/yr - $243.3K/yr|On-site|San Mateo, CA, United States

About Roblox Roblox brings together millions of users daily to explore, create, play, and connect through immersive 3D experiences. Our platform gives developers the tools to turn imagination into reality, supporting a global community that shapes the way people interact on any device. We aim to unite a billion people with positivity and respect, and we look for talented individuals who want to help build this future. Working at Roblox means tackling large-scale technical challenges and contributing to safer, more respectful online experiences. Team Overview: Developer Monetization The Developer Monetization team drives over 70% of Roblox’s revenue. This group builds the systems and products that help millions of creators earn from their work, while shaping how users discover and purchase virtual goods in the world’s largest virtual economy. Current projects include auto-generated storefronts, autonomous pricing, and personalized shopping, all designed to empower creators at no cost to them. The team’s frontend work brings these features to life for our global audience. Role Overview: Senior Software Engineer (Fullstack) This senior engineering role centers on building and owning critical user-facing products. The position involves leading high-impact projects and working closely with product managers, designers, data scientists, and machine learning specialists. Strong frontend skills paired with an interest in business impact are key to success here. The role offers significant ownership and room for growth.

Apr 17, 2026
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Skydio logo
Full-time|$200K/yr - $275K/yr|On-site|San Mateo, California, United States

Join Skydio, the preeminent drone company in the United States and a pioneer in autonomous flight technology, crucial for the future of aerial mobility. Our team is composed of experts in artificial intelligence, cutting-edge hardware and software development, operational excellence, and an unwavering dedication to customer satisfaction. We aim to empower a diverse population of drone users, including utility inspectors, first responders, and military personnel.Role Overview:We are on the lookout for a Staff Frontend Engineer to spearhead the development of real-time, impactful applications tailored for drone pilots, first responders, and mission commanders. In this pivotal role, you will help shape the future of drones as essential infrastructure by designing intuitive, robust, and high-performance interfaces that deliver critical video, telemetry, and control functionality.Your Contributions:Revolutionize the UI/UX of Skydio’s real-time browser flight experience.Craft mission and mapping workflows in immersive 3D with geospatial data integration.Enhance browser performance through process optimization techniques including web workers.Foster an engineering culture centered around best practices through code reviews and technical discussions.Empower pilots to conduct complex multi-drone operations seamlessly.Collaborate with autonomy teams and iterate on features based on in-field feedback.Ideal Candidate Profile:Over 8 years of experience in developing and deploying customer-facing frontend applications.Expertise in modern web technologies including React, TypeScript, GraphQL, and WebGL/Three.js.Demonstrated ability to design scalable systems focused on performance, reliability, and user experience.Strong product intuition and empathy for users operating in high-pressure environments.Proven track record of cross-team collaboration to deliver complex, integrated features from inception to production.Preferred Qualifications:Experience with geospatial data visualization tools (Mapbox, Cesium, etc.).Familiarity with photogrammetry, scanning, mapping, or rendering technologies.Experience in integrating frontend applications with cloud services (AWS, Temporal, Kubernetes).

Jun 10, 2025
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Genesis Molecular AI logo
Full-time|On-site|San Mateo, CA

Join Our Team as a Senior / Staff Fullstack Software EngineerAt Genesis Molecular AI, we are assembling a premier software engineering team dedicated to revolutionizing drug discovery utilizing machine learning, biophysical simulations, and computational chemistry. We seek engineers passionate about developing innovative medicines and contributing significantly to our software platform.Your Responsibilities:Take ownership of our comprehensive full-stack platform utilized by computational chemists, enhancing functionalities ranging from data exploration to real-time visualizations, while delivering AI-driven workflows that expedite the hypothesis-to-insight cycle.Develop and enhance tools for visualizing molecular structures and proteins, analyzing machine learning models, and managing intricate chemical workflows.Collaborate closely with machine learning engineers and computational chemists to create and implement novel computational methods for predicting molecular properties.Expand our data infrastructure capabilities to accommodate billions of data points and thousands of parallel deep learning and molecular dynamics tasks.Your Profile:A critical thinker who approaches challenges from fundamental principles, adeptly balancing detail-oriented tasks with overarching architectural considerations, possessing a strong investigative drive to uncover root causes.Proficient in managing challenges across the full technology stack, including frontend interfaces, backend services, data pipelines, and overall infrastructure.Demonstrated experience in delivering production-level code and leading projects from inception to completion with minimal oversight.Eager to operate at the nexus of software engineering, drug discovery, and machine learning.What We Offer:An opportunity to work on impactful tools and products that are swiftly implemented to accelerate the discovery of new medications.A collaborative environment with skilled colleagues in AI, software, and chemistry, fostering a culture of intellectual curiosity and humility. The team engages in weekly discussions on 1-2 relevant machine learning or chemistry papers to stay abreast of advancements and inspire innovative ideas.Competitive compensation package, including salary and equity, along with comprehensive medical, dental, and vision insurance, and a 401(k) plan.

Mar 3, 2026
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Roblox Corporation logo
Full-time|On-site|San Mateo, CA, United States

Join our dynamic team at Roblox as a Senior Fullstack Software Engineer, where your expertise in safety-oriented software development will contribute to creating a secure and engaging platform for millions of users. In this role, you will leverage your full-stack development skills to innovate, design, and implement robust solutions that enhance the safety features of our platform.

Apr 6, 2026
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Roblox logo
Full-time|$243.3K/yr - $295.3K/yr|On-site|San Mateo, CA, United States

Every day, millions of users engage with Roblox to explore, create, play, learn, and connect with friends through immersive 3D digital experiences, all crafted by our vibrant global community of developers.At Roblox, we are dedicated to building the tools and platform that empower our community to bring their imaginative experiences to life. Our vision is to transform how people connect, regardless of their location or device. We are on a mission to unite a billion individuals with optimism and civility, and we are seeking extraordinary talent to help us achieve this goal.Embarking on a career at Roblox means you will play a key role in shaping the future of human interaction, tackling unique technical challenges at scale, and contributing to the creation of safer, more respectful shared experiences for everyone.The Discovery UX team is at the crossroads of product innovation and robust infrastructure. Every Roblox user begins their journey on the homepage, and it is crucial for developers to find their target audience. Our team collaborates closely with product and engineering teams throughout Roblox to enhance the user journey from landing on the site to joining an experience. We focus primarily on the Home, Search, Charts, and Experience Details pages for both the Roblox website and app.As a Senior Software Engineer, you will develop robust and scalable systems for high-traffic surfaces. While you are a frontend expert, your versatility allows you to engage with backend systems and data pipelines to deliver comprehensive features. You will leverage React and modern technologies to build efficiently across devices. If you possess a deep understanding of frontend architecture and a genuine curiosity for data analysis to understand the reasoning behind experiments, you will thrive in this environment.This position reports directly to the Engineering Manager of the Discovery UX team.

Feb 20, 2026
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Skydio logo
Full-time|$170K/yr - $170K/yr|On-site|San Mateo, California, United States

At Skydio, we are at the forefront of drone technology, recognized as the leading drone company in the United States and a global pioneer in autonomous flight. Our mission is to revolutionize aerial mobility through cutting-edge artificial intelligence, exceptional hardware, and software product development, operational excellence, and an unwavering focus on customer satisfaction. We empower a diverse array of drone users, from utility inspectors to first responders and military personnel, enhancing their capabilities in critical situations.About the Role:We are seeking an experienced Senior Frontend Engineer to spearhead the development of innovative, real-time applications for drone pilots, first responders, and mission commanders. As a vital member of our engineering team, you will play a crucial role in shaping the future of drones as essential infrastructure by creating intuitive, resilient, and high-performance user interfaces that deliver critical video, telemetry, and control functionalities.Your Impact:Drive innovation in UI/UX for Skydio's real-time browser flight interface.Craft mission and mapping workflows in 3D utilizing geospatial data.Enhance browser performance through process splitting and web workers.Foster an engineering culture centered around best practices through code reviews and technical discussions.Empower pilots to undertake complex multi-drone operations effortlessly.Collaborate with the autonomy team and iterate on features based on field feedback.Qualifications:A minimum of 5 years of experience in developing and launching customer-facing frontend applications.Proficient in modern web technologies including React, TypeScript, GraphQL, and WebGL/Three.js.Demonstrated ability to architect systems that prioritize scalability, reliability, and user-friendliness.Strong product intuition with a keen understanding of users operating in high-pressure scenarios.Experience in cross-functional teamwork to deliver intricate, integrated features from conception to deployment.Preferred Skills:Familiarity with geospatial data visualization tools like Mapbox or Cesium.Knowledge of photogrammetry, scanning, mapping, or rendering workflows.Experience linking frontend applications with cloud-based services (AWS, Temporal, Kubernetes).

Feb 7, 2026
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Roblox logo
Full-time|$242.1K/yr - $293.8K/yr|On-site|San Mateo, CA, United States

Join Roblox, where millions engage daily to explore, create, play, learn, and connect in vibrant 3D digital worlds crafted by our global developer community.At Roblox, we're on a mission to build a platform that empowers creators to bring their most imaginative experiences to life. Our vision is to transform how people connect from anywhere, on any device. We aim to connect a billion people with positivity and respect, and we invite extraordinary talent to help us achieve this goal.A career at Roblox means playing a pivotal role in shaping the future of human interaction, tackling unique technical challenges at scale, and crafting safer, more inclusive shared experiences.As a Senior Software Engineer focusing on Ads Experience, you will innovate a fresh advertising interface for our advertisers and publishers. This team will equip advertisers with tools for effective ad campaigns and enable publishers to generate revenue through immersive advertisements. You'll be instrumental in developing a groundbreaking experience that will be vital for our future in Immersive Ads, reporting to our Engineering Manager.In this role, you will design robust and scalable systems for high-traffic areas across our Ads products, leveraging React and other technologies to build components rapidly and efficiently across various devices.If you possess a profound understanding of frontend technologies and a passion for enhancing client-server interactions, you will thrive in our environment!

Feb 10, 2026
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Verkada Inc. logo
Internship|On-site|San Mateo, CA United States

Join Verkada as a Frontend Software Engineering Intern for the Fall 2026 semester! You will have the opportunity to work alongside a talented team of engineers to design and develop innovative software solutions that enhance our security and surveillance products.This internship provides a unique platform for you to gain hands-on experience in frontend development, collaborate on exciting projects, and contribute to our mission of making the world a safer place through technology. If you're passionate about coding, eager to learn, and ready to make an impact, we want to hear from you!

Apr 6, 2026
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Roblox Corporation logo
Full-time|On-site|San Mateo, CA, United States

Roblox is looking for a Senior Frontend Software Engineer to help shape engaging user interfaces for a global audience. This position is based in San Mateo, CA. Role overview This role centers on designing and building interactive frontend features that reach millions of players worldwide. The work involves collaborating with teams from different disciplines to deliver polished and intuitive experiences. What you will do Create and implement user interfaces that support Roblox’s platform and community. Work closely with engineers, designers, and product managers to refine and launch new features. Apply current frontend technologies and development practices to improve usability and performance. Requirements Experience developing modern frontend applications. Strong skills in designing user interfaces for large-scale platforms. Ability to collaborate within cross-functional teams.

Apr 28, 2026
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Roblox Corporation logo
Full-time|On-site|San Mateo, CA, United States

Join Roblox as a Principal Frontend Engineer, specializing in Co-Experience, where you will be at the forefront of creating immersive and engaging user experiences. In this pivotal role, you will lead the development of innovative frontend solutions that enhance collaboration and interaction within our platform. Collaborating closely with cross-functional teams, you will drive projects from conception through execution while mentoring junior engineers and shaping the future of our technology stack.

Mar 27, 2026
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Faros AI logo
Full-time|On-site|San Mateo

Mission At Faros AI, we revolutionize the way companies interact with their operational data by providing a unified platform that enhances visibility across the entire software development lifecycle. Our mission is to empower teams with actionable insights, enabling them to operate with exceptional efficiency and transform their processes.About the RoleWe are seeking a talented and experienced Senior Frontend Software Engineer to become a key member of our dynamic team. Your main focus will be on the design, development, and maintenance of our SaaS product's frontend, leveraging the latest web technologies and best practices. We encourage candidates who are motivated to explore various facets of our technology stack to gain a comprehensive understanding of our systems.Key ResponsibilitiesCreate and implement cutting-edge front-end solutions for our SaaS offerings using modern web development frameworks.Collaborate closely with designers and backend engineers to deliver a cohesive and intuitive user experience.Optimize front-end applications for maximum speed and accessibility.Integrate and customize open-source frameworks to meet our specific needs.Diagnose and address software issues, enhancing component performance as needed.Conduct thorough testing and validation to ensure high-quality software performance and reliability.Stay current with emerging trends and technologies in frontend development.Assess and review code contributions from external contractors.Required QualificationsA Bachelor’s degree in Computer Science, Software Engineering, or a related discipline.A minimum of 5 years of proven experience in frontend development.Strong proficiency with modern web frameworks, particularly Next.js and React.In-depth understanding of CSS and its application.Solid knowledge of JavaScript and TypeScript (with a preference for TypeScript).Experience in architecting scalable and high-performance frontend solutions.Familiarity with testing and debugging tools such as Jest and Cypress.A strong grasp of software development methodologies and best practices.

Apr 23, 2026

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