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Full Stack Engineer Jobs in California (NOW HIRING)

Worky

Full Stack Engineer

San Francisco, CA · On-site

$150K - $275K/yr

About the Role This is a full-stack engineering role with a backend lean at an early-stage AI infrastructure company building the continuous improvement layer for production AI agents. You'll work ...

Staffingine LLC

Full stack engineer

Newark, CA · On-site

Job Title: Full stack engineer Job Location: Newark - California Job Type: Contract * Handson experience with React or Angular NodeJs ExpressNestJs and MongoDB * Handson experience with ...

ICEYE US-SkyFi

Full Stack Engineer

Irvine, CA · On-site

$125K - $140K/yr

Full Stack Engineer At ICEYE, we design, build and operate the largest fleet of Synthetic Aperture Radar (SAR) satellites in the world. Using advanced technology, our constellation collects ...

Knightscope

Full Stack Engineer

Sunnyvale, CA · On-site

The ideal candidate brings full stack engineering expertise, a deep understanding of the Secure Software Development Lifecycle (SSDLC), and hands-on experience integrating large language models and ...

Stellar IT Group

Full Stack Engineer

Fremont, CA · On-site

Mid-Level Full Stack Engineer 6+ months (CTH) Fremont, CA (ONSITE) Core Technical Expertise (Hands-On) * Proven experience in C# / .NET back-end development for production systems. * Strong Angular ...

David Joseph & Company

Full-Stack Engineer

San Francisco, CA · On-site

$200K - $250K/yr

We're partnering with them to find a full-stack engineer who wants real ownership at an early stage. Founded 2025 · Small team · Industry: AI, Ecommerce, B2B The Role You'll own features end-to-end ...

Hired Recruiters

Full Stack Engineer

Palo Alto, CA · On-site

$100K - $160K/yr

We are looking for our first full-stack engineer to work with us to continue building out our product and deploy it to some of the largest insurance carriers in the world. There's so much to do. We ...

Wonderschool

Full Stack Engineer

San Francisco, CA · On-site

$180K - $220K/yr

As a Senior Full Stack Engineer, you will own features end-to-end, working across frontend, backend, and data layers to deliver high-quality, scalable products. You will operate as a builder ...

Wonderschool

Full Stack Engineer

San Francisco, CA

$180K - $220K/yr

As a Senior Full Stack Engineer, you will own features end-to-end, working across frontend, backend, and data layers to deliver high-quality, scalable products. You will operate as a builder ...

Nash, Inc.

Full Stack Engineer

San Francisco, CA · On-site

Full Stack Engineer San Francisco / Hybrid/Remote About Nash Logistics is the substrate beneath every economy that has ever existed, and it remains the least intelligently coordinated activity in the ...

Trabus Technologies

Full Stack Engineer

San Diego, CA · On-site

$92K - $185K/yr

Full Stack Engineer (Multiple Levels) We're looking for a Full Stack Engineer to support the development and deployment of applications incorporating AI, data analytics, cloud technologies, and DevOp ...

Knightscope, Inc.

Full Stack Engineer

Sunnyvale, CA

The ideal candidate brings full stack engineering expertise, a deep understanding of the Secure Software Development Lifecycle (SSDLC), and hands-on experience integrating large language models and ...

Knightscope, Inc.

Full Stack Engineer

Sunnyvale, CA · On-site

$175K - $200K/yr

The ideal candidate brings full stack engineering expertise, a deep understanding of the Secure Software Development Lifecycle (SSDLC), and hands-on experience integrating large language models and ...

Max AI, Inc.

Full-Stack Engineer

San Francisco, CA · On-site

$140K - $220K/yr

Full Stack Engineer Responsibilities * Taking ownership of the entire product lifecycle-from initial concept to final deployment. * Creating scalable and reliable solutions aimed at optimizing ...

Maxcare

Full-Stack Engineer

San Francisco, CA · On-site

$140K - $220K/yr

Full Stack Engineer Responsibilities * Taking ownership of the entire product lifecycle--from initial concept to final deployment. * Creating scalable and reliable solutions aimed at optimizing ...

1 point system

Senior Full-Stack Engineer

Irvine, CA · On-site

Requirement - Senior Full-Stack Engineer Location- Irvine, CA Contract W2 Overview We are seeking a Senior Full-Stack Engineer to support the development of internal Incident Management Tools used by ...

1 point system

Full Stack Engineer

Fremont, CA · On-site

$50 - $55/hr

Job Title Full Stack Engineer 3-5+ years (Mid-level) - Preferable less than 10 years experience Duration 6 Months+ Contract to Hire Location 100% onsite 901 Page Ave. Fremont, CA * 40 hours/week - NO ...

Max AI, Inc.

Full-Stack Engineer

San Francisco, CA · On-site

$140K - $220K/yr

Full Stack Engineer Responsibilities * Taking ownership of the entire product lifecycle-from initial concept to final deployment. * Creating scalable and reliable solutions aimed at optimizing ...

Knightscope

Full Stack Engineer

Sunnyvale, CA · On-site

The ideal candidate brings full stack engineering expertise, a deep understanding of the Secure Software Development Lifecycle (SSDLC), and hands-on experience integrating large language models and ...

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All JobsFull Stack Engineer JobsFull Stack Engineer Jobs in California

Full Stack Engineer information

See California salary details

$43.9K

$133K

$188K

How much do full stack engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for full stack engineer in California is $133,006.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,500.00 and $155,900.00 per year, depending on experience, location, and employer.

What is a full stack engineer?

A Full Stack Engineer is a software developer who is skilled in both front-end and back-end development. They are capable of designing, building, and maintaining the entire technology stack of a web application, including user interfaces, servers, databases, and APIs. Full Stack Engineers often work with multiple programming languages and frameworks, allowing them to handle a wide variety of technical tasks. Their versatility makes them valuable team members in many tech projects.

What are the key skills and qualifications needed to thrive as a full stack engineer?

To thrive as a Full Stack Engineer, you need proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Python, or Java), along with a solid understanding of web application architecture and databases. Familiarity with frameworks like React, Angular, Node.js, and tools such as Git, Docker, and CI/CD systems, as well as relevant certifications, are often required. Strong problem-solving skills, effective communication, and adaptability help you collaborate across teams and manage complex projects. These skills are crucial for building, deploying, and maintaining robust, scalable applications that meet business needs.

How do full stack engineers typically collaborate with UX/UI designers and backend specialists on a project?

Full Stack Engineers frequently act as a bridge between UX/UI designers and backend specialists, ensuring seamless integration of front-end interfaces with server-side logic. They participate in cross-functional meetings, translate design requirements into functional features, and address technical feasibility from both ends. This collaboration often involves code reviews, regular communication to clarify requirements, and agile workflows to ensure that user experience and system performance are both prioritized throughout the development process.

What is the difference between Full Stack Engineer vs Front End Developer?

AspectFull Stack EngineerFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, including HTML, CSS, JavaScript, server-side languages, and databases.Specializes in client-side technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular.
Work EnvironmentWorks on both server and client-side development, often handling entire project stacks.Focuses primarily on creating and optimizing user interfaces and user experience.
Common UsageUsed in full project development, especially in startups and small teams requiring versatile developers.Primarily employed in UI/UX design, front-end frameworks, and client-side optimization.

While both roles require strong web development skills, a Full Stack Engineer handles both front-end and back-end tasks, providing a comprehensive approach to web development. A Front End Developer specializes in creating engaging and responsive user interfaces, focusing on the client side of applications.

Can I learn a full stack engineer in 3 months?

Becoming a full stack engineer in three months is challenging but possible with intensive study, focusing on core skills like HTML, CSS, JavaScript, and backend frameworks. Success depends on prior experience, learning pace, and dedication, often requiring full-time commitment and practical projects to build proficiency.
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Full Stack Engineer jobs near you
Infographic showing various Full Stack Engineer job openings in California as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $133,006 per year, or $63.9 per hour.

Full Stack Engineer

San Francisco, CA • On-site

Worky
See more jobs at Workyexternal

$150K - $275K/yr

Other

Posted 14 days ago

Job description

About the Role

This is a full-stack engineering role with a backend lean at an early-stage AI infrastructure company building the continuous improvement layer for production AI agents. You'll work directly at the intersection of developer tooling, observability, and applied AI — helping engineering teams understand, debug, and improve their agents in production. The work is hands-on and high-ownership from day one.

What You'll Do

  • Build core product experiences including agent investigation interfaces, eval workflows, trajectory debugging, verification, and replay systems.

  • Own problems end-to-end — talk to customers, understand where their agents fail, define solutions, build them, and iterate until they work.

  • Ship across the full stack with a backend emphasis: APIs, data models, internal systems, and product surfaces.

  • Build and shape an AI-powered investigation agent that runs large-scale analyses across production traces.

  • Design and implement platform systems including workspaces, permissions, billing, usage tracking, SDKs, and terminal-first developer experiences.

  • Work directly with AI teams deploying production agents to understand their failures and translate them into product decisions.

What We're Looking For

  • 0–5 years of full-stack development experience with a strong track record of shipping production software end-to-end.

  • Proficiency in TypeScript, React, Next.js, Python, Node.js, and PostgreSQL in production environments.

  • Backend-focused skill set including strong API design and data modeling — not pure infrastructure or distributed systems.

  • Ability to engage directly with customers, identify pain points, and own solutions through to delivery.

  • Experience building platform systems such as workspaces, permissions, billing, usage tracking, SDKs, or account management.

  • Consistently clean, production-quality code and comfort working in fast-paced, ambiguous startup environments.

  • Bonus: experience with AI agents, LLM-powered products, developer tooling, observability products, or agentic system evaluation and debugging.

  • Strong CS fundamentals, whether from a top academic program or demonstrated through career experience at well-regarded tech companies or Series B+ startups.

Compensation & Benefits

  • Salary: $150,000 – $275,000 annually

  • Visa sponsorship: Not available

Location

On-site in San Francisco, California, United States. This is a full-time, in-office role.

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