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Freelance Computer Science Jobs in California (NOW HIRING)

Nokia

Software Engineering Coop

Sunnyvale, CA · On-site

Junior or Senior standing in an Engineering program, studying Computer Science, Data Science, or ... freelance work). * Exposure to real-world applications of AI in industry or academia. About Us ...

Nokia

Software Engineering Coop

Sunnyvale, CA

... Computer Science, Data Science or Artificial Intelligence or a related field with an accredited ... freelance work). * Exposure to real-world applications of AI in industry or academia. You Will:

EMCOR Group Inc

Mesa Energy Systems, Inc.

Irvine, CA

$22 - $30/hr

... degree in Computer Science or Information Systems a plus. • 1 year of Power Bi or equivalent software experience (educational or professional preferred, freelance considered). • Strong ...

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Freelance Computer Science information

What are some common challenges faced by freelance computer science professionals and how can they be managed?

Freelance computer science professionals often face challenges such as juggling multiple clients, maintaining clear communication, and staying up-to-date with evolving technologies. Managing your time effectively and setting clear expectations with clients can greatly reduce stress and project misalignment. Additionally, regular skill development and networking within freelance and tech communities can help you stay competitive and aware of new tools or methodologies. Successfully navigating these challenges leads to stronger client relationships and a more sustainable freelance career.

What are the key skills and qualifications needed to thrive in the Freelance Computer Science position, and why are they important?

To thrive as a Freelance Computer Science professional, you need a strong understanding of programming languages, algorithms, and software development principles, often supported by a relevant degree or substantial project experience. Familiarity with popular development tools, cloud platforms, and version control systems like Git is commonly expected, along with certifications such as AWS Certified Developer or Google Associate Cloud Engineer. Excellent time management, self-motivation, and client communication are crucial soft skills in a freelance environment. These competencies enable you to deliver high-quality solutions independently while meeting client needs and project deadlines.

What is a Freelance Computer Science job?

A Freelance Computer Science job involves working independently on projects related to programming, software development, data analysis, cybersecurity, or other tech fields. Freelancers take on short-term or long-term contracts for clients instead of being employed by a single company. They have the flexibility to choose their projects, set their own rates, and work remotely. This type of work requires strong technical skills, self-discipline, and the ability to manage multiple clients. Many freelancers find work through online platforms, networking, or personal referrals.

What are the most commonly searched types of Computer Science jobs in California? The most popular types of Computer Science jobs in California are:
What are popular job titles related to Freelance Computer Science jobs in California? For Freelance Computer Science jobs in California, the most frequently searched job titles are:
What job categories do people searching Freelance Computer Science jobs in California look for? The top searched job categories for Freelance Computer Science jobs in California are:
What cities in California are hiring for Freelance Computer Science jobs? Cities in California with the most Freelance Computer Science job openings:
Freelance Computer Science jobs near you
Infographic showing various Freelance Computer Science job openings in California as of June 2026, with employment types broken down into 87% Full Time, and 13% Part Time. Highlights an 62% In-person, and 38% Remote job distribution.

Copy of PhD Computer Science Expert for AI Training

Lifted, an Upwork Company™

California City, CA • Remote

$150/hr

Contractor

Posted 13 days ago

Job description

Company Description

An enterprise client is seeking highly technical Computer Science Experts with PhDs to support the training and evaluation of advanced AI models. This initiative focuses on improving the accuracy, reasoning, and domain expertise of generative AI systems through expert human feedback.

The selected candidates will contribute to the company's large AI training project by evaluating AI-generated responses, developing domain-specific prompts, and assessing technical accuracy across complex Computer Science topics. This is a fully remote, freelance opportunity with flexible working hours and the potential for ongoing work beyond the initial project timeline.

    Job Description

    This opportunity is ideal for highly analytical professionals with advanced academic or industry experience in Computer Science or related technical fields.

    What You'll Do:

    • Assess the factual accuracy, relevance, and quality of AI-generated Computer Science content
    • Craft and answer domain-specific questions related to Computer Science and adjacent technical disciplines
    • Evaluate and rank AI-generated responses based on technical correctness and reasoning quality
    • Provide expert-level feedback to improve AI model performance and domain understanding
    • Support AI training initiatives by applying research, analytical thinking, and technical expertise

    This role is a strong fit for professionals with backgrounds in:

    • Computer Science
    • Software Engineering
    • Machine Learning
    • Cybersecurity
    • Distributed Systems
    • Computational Science
    • Information Theory
    • Quantitative Finance (highly preferred)
    • Statistics
    • Electrical & Computer Engineering
    • Technical Research or Academia
    Qualifications

    Requirements:

    • Native or fluent English communication skills (written and verbal)
    • PhD in Computer Science or a closely related technical field
    • Experience working as a software engineer, researcher, or in another highly technical or analytical role
    • Strong technical reasoning and attention to detail
    • Ability to assess complex AI-generated technical outputs with accuracy and consistency

    Nice to Haves:

    • Strong academic or industry research background
    • Experience reviewing technical content, publications, or research outputs
    • Familiarity with AI systems, large language models, or AI evaluation workflows
    • Experience in advanced Computer Science domains such as machine learning, distributed systems, or cybersecurity
    Additional Information
    • Fully remote freelance opportunity with flexible working hours
    • Work is expected to begin immediately and continue through the end of June, with potential extensions
    • Compensation: Up to $150 USD per hour based on project participation
    • Weekly lump-sum payments issued for completed work tracked within the client platform
    • No guaranteed hours or task volume; work availability may vary weekly
    • Candidates must be physically located in one of the following regions: United States, Canada, Puerto Rico, Mexico, Great Britain, Australia, New Zealand, or Argentina
    • Selected candidates will receive onboarding instructions and platform access after acceptance
    • Candidates should not independently create an Outlier profile prior to onboarding

    Apply