26 staff full stack engineer jobs at 13 companies in Fontana, CA
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
10+ YOE10+ years software engineering experience; designing and owning backend infrastructure that integrates edge hardware, ML, data platforms, and visualization; strong collaboration and execution in cross-functional R&D settings.
Staff Software Engineer, Full Stack Manufacturing Software
Costa Mesa, California, United States
$220k-$290k/yrOnsiteFull Time
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOE8+ years building production full-stack web systems; mastery of frontend and backend; experience with offline-capable PWAs, service workers, data sync, CI/CD, cloud/edge; strong communication; U.S. Person required.
JavaScript, TypeScript, React, Next.js, Node.js, Service Workers, IndexedDB, Progressive Web App (PWA), GraphQL, WebSocket, CI/CD
Match GroupNasdaq: MTCH: Provider of a global portfolio of online dating services.
Staff/Principal-level hands-on engineer to build end-to-end frontend, backend, AI systems, and infrastructure; strong product judgment, reliability, privacy, and scalability focus.
Frontend Full Stack Staff Software Engineer, AI Platform Experiences
New York City or Seattle or San Francisco or Denver or Los Angeles or San Jose
$163k-$247k/yrHybridFull Time
Gusto: Cloud-based payroll and HR software for small businesses.
8+ YOE8+ years software development experience (4+ building scalable platforms), strong front-end skills, experience with Ruby on Rails, React, GraphQL, platform/AI experience preferred, mentoring and cross-functional collaboration skills.
Santa Ana or California or New Jersey or Texas or Florida or Shanghai or Japan or Hong Kong or Canada or Mexico or Germany or France or United States
$166k-$269k/yrHybridFull Time
Collectors: Providing authentication and grading services for high-value collectibles.
7+ YOE7+ years building web apps, APIs, and distributed systems; 3+ years AWS; proficiency in Python, C#, or Java; experience with React/Next.js; use of AI tools (Claude Cowork, Codex); staff-level technical leadership.
AWS, Claude Cowork, Codex, Python, C#, Java, React, Next.js, e-Verify
Rula: Connects patients with insurance-covered therapists through a digital platform.
10+ YOE10+ years building full-stack, database-backed web applications and microservices; proven technical leadership; distributed systems expertise; mentoring and architecture review experience.
NodeJs, Typescript, Kafka, Amazon Web Services (AWS), FHIR, HL7
United States or New York City or Palm Beach or Los Angeles or San Francisco
$200k-$280k/yrRemoteFull Time
Atria Health Institute: Membership-based concierge practice providing preventive, precision-based medical care.
8+ YOE8+ years software engineering experience; hands-on experience building AI/LLM-powered and agentic systems; strong full-stack skills and cloud/IaC experience; familiarity with observability, security, and cross-team adoption.
TypeScript, Node, Express, React, Google Cloud Platform, Terraform, MySQL, Cursor, GitHub, Sentry, Datadog, Mixpanel, Omni
Lab37: Developing automated robotic systems for commercial food production.
10+ YOE10+ years software engineering experience with full-stack ownership; backend language proficiency (Go valued), modern TypeScript frontend, API and event-driven design, strong product judgment, and cross-functional communication.
Culver City or Los Angeles or San Diego or Texas or Colorado or California or Oregon or South Dakota or Washington or Nevada or New Mexico or United States
$220k-$240k/yrRemoteFull Time
SonyNYSE: SONY: Sells consumer electronics, video games, and entertainment media.
8+ YOE8+ years engineering experience; full-stack development with Java, Go, or Python; REST API design; HTML/CSS/JavaScript and frameworks (React/Angular/Ember); proficiency with AI-native coding tools and prompt engineering; strong communication and leadership.
TubiNASDAQ: FOXA: Free ad-supported streaming service for movies and television.
8+ YOE8+ years software engineering experience; deep distributed systems expertise; strong full‑stack skills with Node.js/TypeScript, React/TypeScript, PostgreSQL/Drizzle ORM, and Python; experience integrating LLMs/AI into production systems.
Node.js, TypeScript, Express, React, PostgreSQL, Drizzle ORM, Python, OpenAI, Google Gemini, Claude Code, Codex, Cursor, MCP, LLM
Michael Baker International: Engineering and consulting services for global infrastructure projects.
8+ YOEBachelor's degree,8+ years full-stack development experience,proficiency in TypeScript,geospatial platforms,AWS,PostgreSQL/PostGIS,and experience integrating AI into production systems.
Mountain View or Los Angeles or New York City or San Francisco
$210k-$275k/yrHybridFull Time
Commure: AI-powered software platform for healthcare workflow and administrative automation.
8+ YOE8+ years building large-scale full-stack applications; org-wide frontend leadership; deep React/TypeScript, Python, and PostgreSQL expertise; API and data-layer design; strong debugging, observability, and communication skills.
Staff Product Marketing Manager, Integration Stack and Developer Ecosystem
San Jose or Draper or New York City or Seattle or Austin or Houston or Los Angeles County or California or Massachusetts or Utah or Florida or North Carolina or United States
$137k-$202k/yrRemoteFull Time
BILLNYSE: BILL: Automated financial operations software for small and midsize businesses.
8+ YOE8+ years B2B product marketing experience including 3+ years marketing platform/API/developer ecosystem products; strong market research, positioning, GTM, sales enablement, and fintech/payments domain knowledge.