26 staff full stack engineer jobs at 13 companies in Fontana, CA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
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).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
4d
Save
Mark Applied
Hide
Founding Full Stack Engineer, AI Incubation
Los Angeles, California, United States
$300k-$325k/yr HybridFull Time
Match Group
Match GroupNASDAQ: MTCH: Operates a portfolio of global online dating applications.
8+ YOE8+ years engineering experience; staff/principal-level ownership; deep full-stack range; experience with mobile (React Native, Swift, Kotlin, Flutter); AI-powered product experience; strong reliability, privacy, and product judgment.
React Native, Swift, Kotlin, Flutter
1mo
Save
Mark Applied
Hide
Staff Software Engineer, Full Stack
Long Beach, California, United States
$181k-$249k/yr OnsiteFull Time
Relativity Space
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.
Terran R, Terran 1, Stargate
4d
Save
Mark Applied
Hide
Staff Software Engineer, Full Stack Manufacturing Software
Costa Mesa, California, United States
$220k-$290k/yr OnsiteFull Time
Anduril Industries
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
4d
Save
Mark Applied
Hide
Founding Full Stack Engineer, AI Incubation
Los Angeles, California, United States
$300k-$325k/yr HybridFull Time
Match Group
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.
1mo
Save
Mark Applied
Hide
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/yr HybridFull Time
Gusto
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.
Ruby on Rails, React, GraphQL
1mo
Save
Mark Applied
Hide
Staff Software Engineer, Full-Stack
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/yr HybridFull Time
Collectors
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
4w
Save
Mark Applied
Hide
Senior Staff Software Engineer (Remote)
United States or Los Angeles
$241k-$283k/yr RemoteFull Time
Rula
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
3mo
Save
Mark Applied
Hide
Staff Software Engineer, Agentic AI
United States or New York City or Palm Beach or Los Angeles or San Francisco
$200k-$280k/yr RemoteFull Time
Atria Health Institute
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
1w
Save
Mark Applied
Hide
Staff Software Engineer
Los Angeles, California, United States
$213k-$269k/yr OnsiteFull Time
Lab37
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.
Go, TypeScript, AWS services, Docker, Kubernetes, Protobuf, Python, Terraform, Git, SQL
1mo
Save
Mark Applied
Hide
Staff Software Engineer, AI Native
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/yr RemoteFull Time
Sony
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.
Java, Go, Python, HTML, CSS, JavaScript, React, Angular, Ember, Jest, Babel, TypeScript, Claude Code, Cursor, GitHub Copilot, AWS, Docker, Kubernetes, Terraform, Ansible, Jenkins, BMad Method, CI/CD, SAFe, Scrum, MCP, A2A
1mo
Save
Mark Applied
Hide
Staff Software Engineer, Internal Tools
New York City or San Francisco or Los Angeles
$227k-$325k/yr HybridFull Time
Tubi
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
3d
Save
Mark Applied
Hide
Staff Software Engineer (Geospatial & AI)
Santa Ana or United States
$130k-$150k/yr HybridFull Time
Michael Baker International
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.
TypeScript, Esri, MapLibre, Mapbox, AWS, PostgreSQL, PostGIS
1w
Save
Mark Applied
Hide
Staff Software Engineer - Biller Workflows
Mountain View or Los Angeles or New York City or San Francisco
$210k-$275k/yr HybridFull Time
Commure
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.
React, TypeScript, Python, FastAPI, PostgreSQL, StarRocks, ClickHouse, Druid, EDI X12, LLM, CI/CD
4w
Save
Mark Applied
Hide
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/yr RemoteFull Time
BILL
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.