Top Full Stack Developer Jobs in Austin, TX

Leads technical direction and develops fullstack purchase experiences using Ruby on Rails and Vue.js. Designs resilient transactional flows, integrates billing and CRM systems, improves reliability and rollout safety, mentors engineers, reviews code, reduces technical debt, and participates in incident response. Partners with Product, Design, Billing, and Support to improve GitLab’s purchase, subscription, discount, and upgrade workflows.

Designs and develops scalable full-stack web and mobile applications, cloud infrastructure, databases, APIs, and microservices. Writes tested, documented client- and server-side code; evaluates architecture, troubleshoots performance, and maintains security and quality standards. Collaborates cross-functionally using Agile methodologies. The role requires hybrid work with three days in-office and two days remote.

The role involves designing and building AI-native systems for revenue teams at Upside, including developing applications, partnering with teams, managing the entire stack, and improving system reliability and performance.

Contribute to full-stack development for web (Next.js/React/Tailwind) and mobile (React Native/Expo), build backend APIs with NestJS, support AWS deployments and CI/CD, implement AI-driven conversational features, develop data components, and collaborate with senior engineers through code reviews and product discussions while receiving mentorship.

Architect low-latency .NET APIs and backend services while building Angular interfaces for a financial services platform. Develop microservices and message-driven systems, maintain high test automation coverage, conduct code reviews, manage CI/CD and production observability, and define OpenAPI contracts. Collaborate in Agile/Scrum teams to deliver analytical tools supporting investment decisions.

Build and maintain end-to-end frontend and backend features for gaming systems. Develop responsive React interfaces, backend services in Node.js and Python, integrate APIs and data sources, manage databases, write tested production-grade code, identify and fix performance/reliability issues, participate in design discussions and code reviews, and collaborate with product and data teams.

As a Fullstack Engineer, you'll design, build, and operate web applications, collaborating with product teams and mentoring peers while ensuring best practices in coding and system architecture.

Build and maintain the TypeScript-based Duo Client SDK, including Node.js core packages, public APIs, browser-compatible modules, Vue 3 client components, and platform adapters. Responsibilities include migrating consumers from the GitLab Language Server, managing versioning and deprecation paths, strengthening credential security, optimizing browser performance, writing tests, conducting code reviews, and participating in on-call support.

Build and maintain full-stack software across data models, APIs, user interfaces, workflows, and production systems. Develop accessible, form-driven applications using TypeScript, Node.js, NestJS, React, and Next.js. Design transactional and flexible databases, implement asynchronous processing, and write unit, integration, and end-to-end tests. Participate in code reviews and technical design discussions while improving scalability, security, reliability, and WCAG compliance. Own features end to end with growing autonomy and collaborate with senior engineers and technical leadership.

Lead full-stack design, development, and deployment of scalable applications using FastAPI and Vue.js. Integrate AI dev tools to improve workflows, manage AWS cloud infrastructure, build high-performance APIs, champion best practices, troubleshoot performance issues, and mentor junior engineers while collaborating cross-functionally.

Own end-to-end fullstack development in a monorepo: build web (Next.js/Tailwind) and mobile (React Native/Expo) apps, backend services (NestJS), integrate AI conversational features, secure data systems, manage AWS deployments, develop robust APIs, collaborate cross-functionally, and optimize via data and A/B testing.

Build scalable, data-intensive products from the ground up, focusing on Java/Kotlin backend services, REST or GraphQL APIs, data access, and React/TypeScript interfaces. Responsibilities include architecture, performance optimization, testing, observability, production troubleshooting, technical documentation, and end-to-end feature ownership. Collaborate with data, reporting, design, and product teams while using AI-assisted development tools to accelerate delivery.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Build and ship end-to-end features for a restaurant operating system, lead architecture and technical execution, define product roadmap with cross-functional teams, and maintain high-quality CI/CD and productionized systems.

Volunteer Principal Full Stack Engineer to lead and contribute across frontend and backend (React/React Native, Node.js, MongoDB). Own feature development, mentor engineers, collaborate with product/design, ship scalable code, and support CI processes. Must commit 4+ hours weekly and attend a weekly standup; first task includes launching a fundraising campaign.

Build and own end-to-end full-stack features across backend services and user-facing applications. Contribute to system design, reliability, performance, observability, and engineering practices while collaborating with product and design.

Design, build, and maintain cross-platform mobile applications and end-to-end web features. Implement front-end interfaces, back-end services and RESTful APIs, optimize databases, write tests and documentation, perform code reviews, and collaborate with UX, QA, and DevOps to deliver high-quality, secure, and performant solutions.

The Full Stack Engineer will design, build, and maintain scalable web applications, impact customer onboarding and integrations, write and review code, and support technical improvements.

Build and maintain scalable full-stack features for Roo’s veterinary staffing marketplace. Develop across the React Native mobile app and backend services, contribute to architecture, write unit and end-to-end tests, resolve production issues, improve observability and reliability, and support CI/CD deployments. Collaborate cross-functionally with product, design, data, and engineering teams while mentoring junior engineers and driving technical improvements.

Build and own internal operational tools, client portals, dashboards, intake workflows, and responsive web experiences. The engineer will shape system architecture, scalability, user flows, and technical roadmaps while collaborating with leadership and an external development team. The role requires autonomous full-stack development, strong product judgment, clean interface design, and eventual ownership of the company’s database and internal systems.

Own full-stack modernization of complex federal legacy systems using Palantir as the target platform. Responsibilities include analyzing workflows, designing scalable applications, developing Java and Spring Boot backend services and APIs, building React-based user interfaces, integrating legacy environments, troubleshooting across application and data layers, and supporting the full SDLC. The role also requires stakeholder collaboration, code reviews, Agile delivery, and simplifying undocumented or inefficient processes.

Own full-stack product surfaces across Next.js, TypeScript services, and Postgres data models. Build and optimize features end to end, improve query, caching, socket, and rendering performance, debug production issues, collaborate with design and product, make pragmatic scope decisions, and mentor engineers. The role may also involve real-time systems, Redis caching, onchain data, and production on-call ownership.

Build and improve AssetWatch’s cloud-native industrial IoT SaaS platform across frontend, backend, APIs, and databases. Develop React and AWS features, create scalable and observable solutions, support production systems, improve reliability and performance, contribute to CI/CD and automated testing, and participate in design and architecture decisions. The role also involves secure software development, accessibility compliance, infrastructure automation, peer reviews, and responsible use of AI-assisted development tools.

Build and maintain data-intensive, interactive web products across the full stack. Architect and implement API and frontend features, validate FastAPI responses with Pydantic, access Postgres via SQLAlchemy, optimize performance and scalability, implement testing and QA, participate in code reviews, refine UX, and help define engineering processes at an early-stage company.

Build and evolve full-stack onX Hunt experiences across mobile applications, APIs, backend services, and data systems. Design scalable, reliable architectures; develop and support distributed microservices; troubleshoot complex issues; and write tested, maintainable code. Collaborate with Product, Design, QA, and engineering teams, contribute to architectural decisions, review code, mentor engineers, and explore responsible AI-assisted workflows.