Full Stack Developer Jobs in California, United States

Team is seeking a mid-level Full Stack Developer to build and maintain scalable, secure software solutions across the tech stack, including Next.js, TypeScript, Python, and Azure Cloud Services. The role involves developing APIs, designing database queries, integrating Salesforce, and collaborating with product and engineering managers in an Agile environment.

Synectic Solutions is seeking a Full Stack Developer to support the Program Office for NSWC Corona in Norco, California. The role involves analyzing technical support assignments, designing client-side and server-side architecture, building front-end and back-end applications, managing databases, writing APIs, and collaborating with system administrators, cybersecurity personnel, and analysts in an agile environment.

Escalon Services, LLC. – a technology company building next‑generation intelligent systems at the intersection of AI, XR, robotics, and autonomy. The Full Stack Developer will design and deliver scalable web applications, create responsive front‑ends with React/Next.js, build robust backend services and APIs, and integrate cloud and AI services.

CGS seeks an experienced Full Stack Web Developer to build enterprise-wide data inventory solutions. The role spans multiple teams, developing integrated web apps, APIs, and scripts using Angular, Node.js, TypeORM, and other modern technologies.

Software Development Team at CACI International builds and maintains complex full‑stack applications supporting critical government missions. The role designs, develops, and troubleshoots web solutions, collaborates with product managers and QA, and mentors junior developers within an Agile environment.

E‑Space’s Full Stack Developer builds scalable applications and dashboards to support satellite testing and integration. The role focuses 70% on front‑end development with Vue/React and 30% on back‑end services in Django/Express, coordinating with FSW, AIT, and Mission Ops teams.

Easystreetcap seeks a Full Stack Developer in Irvine to build cutting‑edge web solutions for a nationwide real‑estate lender. The role focuses on delivering React/TypeScript front‑end features, developing MongoDB‑backed services, and integrating with RESTful APIs using Node.js/Express. Candidates will write automated tests, work with AWS Lambda, S3, SES, and CloudWatch, mentor junior engineers, and help maintain compliance with SOC 2, HIPAA, and GDPR.

TagLeaf engineering team builds an online platform that enables scientists to analyze and discover critical information about cannabis. The Full-Stack Developer will design, implement, and maintain backend services (Laravel, Redis, Postgres) and front‑end features (VueJS, React, Angular) for a remote‑first product used by laboratories across the US. Remote - Santa Cruz, CA, US, fully remote work model, independent and collaborative environment.

Digital Health Platform team at Boston Scientific builds innovative digital solutions that improve patient outcomes and clinician experiences. The Principal Full Stack Developer leads architecture and delivery of enterprise‑grade applications, from React front‑ends to Java/Spring Boot microservices, driving cloud migration and compliance across AWS and Azure.

Performance Capture Tracking team at Rockstar Games builds and maintains internal web applications that streamline production workflows for performance capture and related processes. The Senior Full Stack Developer designs, implements, and optimizes scalable C#/.NET back‑ends, React front‑ends, and SQL databases, collaborates across Animation, R&D, and Tech Art, and mentors engineers to ensure reliable, high‑performance systems.

Digital Health Platform team at Boston Scientific builds innovative digital platforms that improve patient outcomes and connect medical devices. The Principal Full Stack Developer leads architecture and delivery of enterprise‑grade applications, overseeing front‑end, back‑end and cloud‑native microservices while mentoring engineers and driving compliance with HIPAA, GDPR and FDA standards.

Senior Full Stack Developer needed for a 12+ month contract-to-hire role in Foster City, CA. Focus on backend (5+ years) with 1-2 years React/Redux/Angular. Strong JavaScript, Java, REST APIs, Agile environment.

Pulser Physics Design & Operations team at Pacific Fusion builds data acquisition systems and web front ends for the pulser factory and future Demonstration System. The role architects databases, APIs and React applications, creates UI demos, leads a team to deliver mission‑critical software, and partners with scientists to accelerate data‑driven decision making.

E-commerce Development Team at See's Candies builds and maintains the online shopping platform that supports order management, fulfillment, and customer service. The Full Stack Web Developer designs and implements new features, troubleshoots complex issues across the full technology stack, and collaborates with DevOps and cross‑functional partners.

Journey team at Pacific Life builds cutting‑edge web solutions for the Customer Journey. The Senior Full Stack Developer designs, develops and delivers end‑to‑end features, collaborates with cross‑functional teams, owns CI/CD pipelines and resolves performance, security and stability issues.

Jensen Hughes's engineering team builds and evolves web applications and cloud platforms to support safety and security solutions. The Full Stack Software Developer designs, develops and maintains full‑stack applications using React/Angular, .NET, Python, Docker and AWS, and collaborates with product, DevOps and QA partners.

VSolvit team builds custom cybersecurity, cloud and GIS applications for enterprise clients. The Junior Full Stack Developer will create responsive UI components with React, HTML5 and CSS3, and assist in building C#/.NET REST APIs and PostgreSQL data services while participating in Agile ceremonies.

BayRock Labs seeks a Senior Full Stack Developer to build and maintain React component libraries and enterprise applications. The role involves designing scalable solutions, writing clean code, and collaborating with cross‑functional teams to deliver high‑quality software.

Charles River Associates is seeking a Full Stack Agentic Developer to build and evolve a web‑based AI platform that lets experts translate domain knowledge into scalable AI‑driven workflows. The role designs and implements React/Vite front‑end features, Node.js/TypeScript back‑end services, and integrates LLM provider APIs, real‑time streaming, and custom agent runtimes.

Factory OS team at Foundry Robotics builds AI-native robotics manufacturing software that runs factories, spanning cloud backends, on‑prem services, and edge devices. The Senior Full Stack Developer creates end‑to‑end features for web and edge applications, designs backend APIs, implements offline‑first capabilities, writes comprehensive tests, and collaborates with designers and product managers to deliver reliable operator tools.