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Freelance Software Engineer Jobs in California (NOW HIRING)

Solomon Page

Data Engineer

Pleasanton, CA · On-site

$60 - $65/hr

We are seeking an experienced Lead Data Engineer to join the Supply Chain Data & AI organization ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Blue Danube Productions

Freelance A/V Technician - Los Angeles In this role you will be responsible for delivering ... cams, laptop presentation software * Lighting operation: console programming, moving light ...

Cognition

Forward Deployed Marketer

San Francisco, CA · On-site

$21.25/hr

We're the makers of Devin, the first AI software engineer. Our team is extremely talent-dense ... Manage production agencies and freelancers for shoots and campaign creation. * Enable AEs on how to ...

Blue Danube Productions

$30 - $60/hr

Description Freelance A/V Technician - Los Angeles In this role you will be responsible for ... cams, laptop presentation software * Lighting operation: console programming, moving light ...

Aikido Security

Brand Marketer

San Francisco, CA · On-site

$21.25/hr

We're making security suck less for developers. Security tools haven't kept up with how software is ... You'll brief and manage creative production (in-house or via agencies/freelancers), keep campaigns ...

Solomon Page

Full Stack Developer

San Francisco, CA · On-site

$80/hr

... software architecture principles. * Excellent communication, problem-solving, and stakeholder ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

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Showing results 21-40

All JobsSoftware Engineer JobsFreelance Software Engineer JobsFreelance Software Engineer Jobs in California

Freelance Software Engineer information

See California salary details

$23.7K

$103.5K

$186.5K

How much do freelance software engineer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for freelance software engineer in California is $103,490.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,100.00 and $118,400.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a freelance software engineer, and why are they important?

To thrive as a Freelance Software Engineer, you need strong programming skills, proficiency in relevant languages (such as Python, JavaScript, or Java), and a good understanding of software development methodologies. Familiarity with version control systems like Git, cloud platforms, and project management tools is highly beneficial, along with a portfolio or certifications to demonstrate expertise. Excellent communication, time management, and self-motivation are critical soft skills for managing client relationships and project deadlines independently. These competencies are essential for delivering high-quality work, maintaining client trust, and sustaining a successful freelance business.

What does a freelance software engineer do?

Freelance software engineers design and develop applications for clients on a short- or long-term contract basis. In this role, your job duties may include coordinating with systems analysts and programmers to determine the scope of the project, developing new or modifying existing software according to your client's needs and expectations, and analyzing computer specifications and layouts to build a better system. You also troubleshoot and update the application when necessary. Freelance software engineers may work remotely from home or they may occasionally travel to their client’s office to perform job duties. You may work primarily with one client at a time, or you may choose to contract with many different clients.

How much do freelance software engineers make?

Freelance software engineers' earnings vary widely based on experience, skills, project complexity, and client. On average, they can charge hourly rates from $50 to over $150, with annual income ranging from $50,000 to over $150,000 depending on workload and reputation.

How do freelance software engineers typically manage client communication and project expectations?

Freelance software engineers usually handle client communication directly, which means clear and regular updates are crucial for building trust and ensuring project success. Setting expectations early—such as deliverables, timelines, and feedback processes—helps prevent misunderstandings and scope creep. Many freelancers use project management tools, structured status reports, and scheduled check-ins to keep projects on track. Balancing multiple clients can be challenging, so effective time management and proactive communication are key to maintaining client satisfaction and repeat business.

What is a freelance software engineer?

A freelance software engineer is an independent professional who offers software development services to clients on a contract or project basis, rather than being a full-time employee at a company. They may work on a variety of projects, such as building websites, creating apps, or developing custom software solutions. Freelance software engineers typically manage their own schedules, seek out clients, and are responsible for handling business operations like billing and taxes. This flexible career path allows them to work with different clients and industries, often remotely or from any location.
More about Freelance Software Engineer jobs
What are the most commonly searched types of Software Engineer jobs in California? The most popular types of Software Engineer jobs in California are:
What are popular job titles related to Freelance Software Engineer jobs in California? For Freelance Software Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Freelance Software Engineer jobs in California look for? The top searched job categories for Freelance Software Engineer jobs in California are:
What cities in California are hiring for Freelance Software Engineer jobs? Cities in California with the most Freelance Software Engineer job openings:
Freelance Software Engineer jobs near you
Infographic showing various Freelance Software Engineer job openings in California as of August 2026, with employment types broken down into 78% Full Time, 17% Part Time, 2% Temporary, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $103,490 per year, or $49.8 per hour.

Senior Full-Stack Engineer - LLM-Powered Code Review PoC

Fuku

San Francisco, CA • Remote

Full-time

Re-posted 12 days ago

Job description

Senior Full-Stack Engineer (Freelance/Contract, Remote)
NexaFlow is developing a proof-of-concept automated code review tool powered by large language models (LLMs). We are seeking a Senior Full-Stack Engineer to design and deliver the prototype end-to-end.
Key Responsibilities:

  • O
    • wn the entire proof-of-concept (PoC) development process, from architecture to deployment.
  • I
    • ntegrate webhooks for pull request (PR) analysis.
  • B
    • uild a hybrid review engine combining LLMs and static analysis tools.
  • I
    • mplement custom rule configuration for code reviews.
  • D
    • evelop a review dashboard for users.
  • E
    • nsure Docker-based deployment of the solution.
    Requirements:
  • 5
    • + years of full-stack development experience with Python (FastAPI) or Node.js and React.
  • P
    • roven experience integrating LLM APIs (such as OpenAI GPT-4, Anthropic Claude) into production systems.
  • H
    • ands-on experience with CI/CD pipelines, including GitHub Actions or GitLab CI.
  • F
    • amiliarity with code review tooling.
  • A
    • bility to work independently, handling all aspects from system architecture to deployment.
  • E
    • xperience with static analysis tools (e.g., Semgrep, CodeQL) is a strong plus.
    Engagement Details:
  • F
    • reelance/contract position.
  • F
    • ully remote work.
  • C
    • ompetitive rate based on experience.

    Fuku logo

    About Fuku

    Sourced by ZipRecruiter

    Industry

    Food services and drinking places

    Company size

    51 - 200 Employees

    Headquarters location

    New York, NY, US

    Year founded

    2015

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