Senior Full Stack Engineer Jobs in California
Senior Full Stack Engineer jobs in California are among the most active in the country, concentrated in technology, fintech, enterprise software, and digital media across a market that demands talent at every level from mid-career engineers to principal-level architects. The heaviest hiring is in the San Francisco Bay Area, Los Angeles, and San Diego, where established employers like Google, Salesforce, and Qualcomm maintain large engineering teams and consistently recruit at the senior level. The most in-demand specialties include distributed systems, cloud-native architecture, and React or Node.js full stack development. Find a role that fits below and apply directly.
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Senior Full-Stack Engineer (Backend-Focused)
Location: San Francisco, CA
Work Model: Hybrid (Onsite Tue, Wed, Thu)
Duration: 6 Months Contract
The Tech Stack
- Backend Core: Python (FastAPI, Flask), Node.js, Microservices, MCP (Model Context Protocol).
- Frontend Core: React, TypeScript
- AI & LLM Tools: Cursor, GitHub Copilot, LangGraph, CrewAI, LangSmith/Opik, Lovable, v0.dev.
- State & Data: Redux + Sagas, TanStack Query, Zustand, Context API, WebSockets, gRPC-web, GraphQL, Redis, SQL/NoSQL.
- Design & UI: BaseUI design system, Styletron (CSS-in-JS), Figma, Tailwind CSS.
Overview
The Financial Risk Management (FRM) team builds real-time monitoring, data visualization, and AI-driven automation systems to ensure platform integrity. We are seeking a Senior Full-Stack Engineer (backend-leaning) to architect scalable data systems, microservices, and AI-powered workflows while also delivering high-quality frontend experiences. You will design end-to-end systems spanning databases, APIs, AI integrations (LLMs/agents), and React-based dashboards handling real-time risk data with low latency.
Key Responsibilities
- System Design & Backend Architecture: Build scalable, low-latency systems for real-time risk data; design SQL/NoSQL schemas and data pipelines.
- APIs & Microservices: Develop REST, GraphQL, WebSockets, and gRPC services; implement microservices and MCP-based AI integrations.
- AI/LLM Integration: Deploy production LLM systems (OpenAI, Anthropic); build agent workflows using LangGraph, CrewAI, function calling, and tool-use patterns.
- Frontend Delivery: Convert Figma/prototypes into React + TypeScript apps; manage state using Redux/Saga or Zustand; use TanStack Query for server state.
- Performance & Observability: Optimize real-time systems; implement AI observability tools (LangSmith, Opik), retry logic, and hallucination detection.
- AI-Driven Development: Use tools like Cursor, GitHub Copilot, and Codex to accelerate development and refactoring.
Required Qualifications
- 7+ years of software engineering experience in scalable backend and system design, with full-stack exposure.
- Strong expertise in Python (FastAPI/Flask) and Node.js.
- Advanced frontend skills in React + TypeScript.
- Deep experience with REST, WebSockets, gRPC, and real-time systems.
- Strong understanding of caching and state management (Redis, TanStack Query, Zustand, Redux).
- Hands-on experience with LLM tooling (LangChain, LlamaIndex, DSPy, Smolagents) and prompt engineering.
- Experience using AI-powered dev tools (Cursor, Copilot, etc.).
Nice to Have
- Background in anomaly detection, compliance systems, or workflow automation (Celery, Temporal, Cadence).
- Familiarity with rapid prototyping tools (v0.dev, Lovable).
- Strong product mindset with focus on usability and iterative delivery.
Senior Full-Stack Engineer (Backend-Focused)
Location: San Francisco, CA
Work Model: Hybrid (Onsite Tue, Wed, Thu)
Duration: 6 Months Contract
The Tech Stack
- Backend Core: Python (FastAPI, Flask), Node.js, Microservices, MCP (Model Context Protocol).
- Frontend Core: React, TypeScript
- AI & LLM Tools: Cursor, GitHub Copilot, LangGraph, CrewAI, LangSmith/Opik, Lovable, v0.dev.
- State & Data: Redux + Sagas, TanStack Query, Zustand, Context API, WebSockets, gRPC-web, GraphQL, Redis, SQL/NoSQL.
- Design & UI: BaseUI design system, Styletron (CSS-in-JS), Figma, Tailwind CSS.
Overview
The Financial Risk Management (FRM) team builds real-time monitoring, data visualization, and AI-driven automation systems to ensure platform integrity. We are seeking a Senior Full-Stack Engineer (backend-leaning) to architect scalable data systems, microservices, and AI-powered workflows while also delivering high-quality frontend experiences. You will design end-to-end systems spanning databases, APIs, AI integrations (LLMs/agents), and React-based dashboards handling real-time risk data with low latency.
Key Responsibilities
- System Design & Backend Architecture: Build scalable, low-latency systems for real-time risk data; design SQL/NoSQL schemas and data pipelines.
- APIs & Microservices: Develop REST, GraphQL, WebSockets, and gRPC services; implement microservices and MCP-based AI integrations.
- AI/LLM Integration: Deploy production LLM systems (OpenAI, Anthropic); build agent workflows using LangGraph, CrewAI, function calling, and tool-use patterns.
- Frontend Delivery: Convert Figma/prototypes into React + TypeScript apps; manage state using Redux/Saga or Zustand; use TanStack Query for server state.
- Performance & Observability: Optimize real-time systems; implement AI observability tools (LangSmith, Opik), retry logic, and hallucination detection.
- AI-Driven Development: Use tools like Cursor, GitHub Copilot, and Codex to accelerate development and refactoring.
Required Qualifications
- 7+ years of software engineering experience in scalable backend and system design, with full-stack exposure.
- Strong expertise in Python (FastAPI/Flask) and Node.js.
- Advanced frontend skills in React + TypeScript.
- Deep experience with REST, WebSockets, gRPC, and real-time systems.
- Strong understanding of caching and state management (Redis, TanStack Query, Zustand, Redux).
- Hands-on experience with LLM tooling (LangChain, LlamaIndex, DSPy, Smolagents) and prompt engineering.
- Experience using AI-powered dev tools (Cursor, Copilot, etc.).
Nice to Have
- Background in anomaly detection, compliance systems, or workflow automation (Celery, Temporal, Cadence).
- Familiarity with rapid prototyping tools (v0.dev, Lovable).
- Strong product mindset with focus on usability and iterative delivery.
See All 179+ Senior Full Stack Engineer Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find JobsSenior Full Stack Engineer Jobs by City in California
Where California roles are concentrated, by current openings.
Senior Full Stack Engineer Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
- Apple12
- Roblox11
- Rippling9
- Commure8
- Adobe7
Top Industries Hiring
- Technology & Software116
- Banking & Financial Services12
- Artificial Intelligence11
- Electronics & Hardware11
- Healthcare & Medical Services9
What California Employers Look For
The qualifications that appear most often in senior full stack engineer jobs across California.
- Five or more years of professional full stack development experience with production systems
- Proficiency in at least one major front-end framework such as React, Angular, or Vue
- Strong back-end experience in Node.js, Python, Java, or Go with RESTful or GraphQL APIs
- Hands-on experience designing and deploying on AWS, Google Cloud, or Azure infrastructure
- Demonstrated ability to mentor junior engineers and lead technical design discussions
- Experience with CI/CD pipelines, containerization tools like Docker, and Kubernetes orchestration
Senior Full Stack Engineer Jobs in California: Frequently Asked Questions
How do you become a senior full stack engineer in California?
Senior full stack engineers in California typically reach the role through a combination of a computer science or software engineering degree and several years of progressive professional experience. California does not require a state-issued license for software engineers, so the path centers on building a portfolio of production work, deepening expertise in both front-end and back-end systems, and demonstrating leadership on engineering teams. Employers in California's tech-dense markets weigh hands-on project history and system design ability heavily in hiring decisions.
How much do senior full stack engineers make in California?
Senior full stack engineers in California earn a median of about $174,410 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $105,060 for the lowest 10% to over $272,670 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire senior full stack engineers in California?
Employers hiring senior full stack engineers in California right now include Apple, Roblox, and Rippling, based on current listings on Migrate Mate as of June 2026. California's concentration of technology headquarters, enterprise software companies, and well-funded startups means demand for senior-level engineers stays consistent across a wide range of sectors throughout the year.
Which California cities have the most senior full stack engineer jobs?
San Francisco, Mountain View, and San Mateo are the California cities with the most senior full stack engineer openings, reflecting the concentration of technology companies, enterprise software firms, and venture-backed startups across the Bay Area and Southern California. The San Francisco Bay Area leads due to the density of major tech headquarters, while Los Angeles and San Diego draw volume from media technology, defense contractors, and a growing startup ecosystem.
Are there remote senior full stack engineer jobs in California?
Yes, and more than most fields. About 35% of senior full stack engineer openings tied to California are remote or hybrid as of June 2026, reflecting how well the role translates to distributed work. Back-end development, API design, and architecture work are the most commonly offered in fully remote arrangements, while roles involving close collaboration with on-site hardware or embedded systems teams are more likely to require in-person presence.
How can I get hired as a senior full stack engineer in California with little or no experience?
The most realistic entry path is securing an associate or junior software engineer role at a California-based technology company and building toward a senior title through demonstrated project ownership. Large California employers like those in the Bay Area tech sector and enterprise software companies in Los Angeles run new-grad programs and engineering rotations that open the door without years of prior experience. Lateral moves from QA engineering, DevOps, or front-end specialist roles are also common. A strong portfolio of deployed projects or contributions to open-source work gives candidates a meaningful edge in California's competitive hiring market.
Where can I find and apply to senior full stack engineer jobs in California?
You can find and apply to senior full stack engineer jobs in California on Migrate Mate, which lists current California openings across a range of employers and specialties. Find the roles that fit your experience and location preferences and apply directly through the listings.
See All 179+ Senior Full Stack Engineer Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
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