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Javascript Engineer Contract Jobs (NOW HIRING)

Alignerr

JavaScript Engineer (AI Training) What if your JavaScript expertise could directly influence how AI ... This is a fully remote, flexible contract role built for working developers. You'll bring your real ...

Staffingine LLC

Javascript Engineer

Sunrise, FL · On-site

Contract * We are looking for a skilled Software Engineer to join our team and contribute to building scalable JavaScript applications using React and Nodejs They will work on both frontend and ...

VBeyond

JavaScript Engineer

Fort Lauderdale, FL · Hybrid

Contract to Hire JD JavaScript Typescript Node Node JS CICD AWS Git GitHub GitLab BitBucket SVN ... developer productivity and internal platform development Skills Mandatory Skills : JavaScript ...

Tekfortune Inc

JavaScript Engineer

Manhattan, NY · On-site

Tekfortune is a fast-growing consulting firm specialized in permanent, contract & project-based ... Java script Java script Engineer- Advanced knowledge of JavaScript internals, Node.js or core Java ...

Collabera

JavaScript Engineer

Chicago, IL

Chicago, IL Duration: 3 Months - Contract to Hire Required Skills: * Expert in JavaScript programming * Node JS * Amber JS * MVC * It has to be a .NET application and NOT Java application Arun K S ...

Alignerr

Frontend JavaScript Engineer What if your JavaScript expertise could directly influence how AI ... Hourly Contract * Location: Remote * Commitment: 10-40 hours/week What You'll Do * Evaluate AI ...

Idealforce

JavaScript Developer

Phoenix, AZ · On-site

JavaScript Developer IDEALFORCE have a Contract position available immediately for a JavaScript Developer to join our customer in Phoenix Arizona. This is an ONSITE position. Please find below ...

Alignerr

Type: Hourly Contract * Location: Remote * Commitment: 10-40 hours/week What You'll Do * Review and evaluate AI-generated JavaScript code for correctness, efficiency, and adherence to modern ES6 ...

Staffingine LLC

JavaScript Developer

Phoenix, AZ · On-site

Contract * We are looking for a skilled JavaScript Developer with strong experience in React (Frontend) and Node.js (Backend). * The ideal candidate will be responsible for building scalable web ...

Kaav Inc.

JavaScript Developer

Phoenix, AZ · Remote

Provide ongoing support and maintenance for deployed applications during the contract period ... Proven experience as a JavaScript Developer with a strong portfolio of web application development ...

Alignerr

Frontend JavaScript Developer What if your JavaScript expertise could directly shape how AI writes ... This is a fully remote, flexible contract role. You set your own schedule and work as much or as ...

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How much do javascript engineer contract jobs pay per year?

As of May 28, 2026, the average yearly pay for javascript engineer contract in the United States is $135,523.00, according to ZipRecruiter salary data. Most workers in this role earn between $125,500.00 and $148,500.00 per year, depending on experience, location, and employer.
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What are the most commonly searched types of Javascript Engineer jobs? The most popular types of Javascript Engineer jobs are:
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Javascript Engineer Contract jobs near you

JavaScript Engineer

Alignerr

Remote

Full-time

Posted 10 days ago

Job description

JavaScript Engineer (AI Training)

What if your JavaScript expertise could directly influence how AI writes code for millions of developers around the world? We're looking for experienced JavaScript Engineers to evaluate and improve AI-generated code — ensuring it's correct, efficient, and written to the standards real engineers actually care about.

This is a fully remote, flexible contract role built for working developers. You'll bring your real-world JS experience to one of the most impactful applications in tech right now: training the AI systems that are reshaping how software gets built.

  • Organization: Alignerr
  • Type: Hourly Contract
  • Location: Remote
  • Commitment: 10–40 hours/week

What You'll Do

  • Review and evaluate AI-generated JavaScript code for correctness, efficiency, and adherence to modern ES6+ standards
  • Write high-quality JavaScript solutions across a range of difficulty levels — from everyday utility functions to complex async logic
  • Identify bugs, edge cases, and failure modes in AI-generated web and backend code
  • Craft clear, human-readable explanations of code logic and problem-solving approaches
  • Provide structured, detailed feedback that helps AI models produce better, more reliable code
  • Work independently and asynchronously — fully on your own schedule

Who You Are

  • Deep familiarity with core JavaScript concepts — async/await, closures, prototypal inheritance, DOM manipulation, and more
  • 3+ years of hands-on experience with modern JavaScript frameworks such as React, Node.js, or Vue
  • Strong instincts for clean, readable, maintainable code — you know the difference between code that works and code that's well written
  • Naturally detail-oriented with a methodical approach to evaluating quality
  • Able to articulate technical reasoning clearly in writing
  • A degree in Computer Science or a related field is preferred, but demonstrated experience matters most

Nice to Have

  • Experience with data labeling, RLHF, or other AI training workflows
  • Familiarity with TypeScript or modern JavaScript toolchains (Webpack, Vite, ESLint, etc.)
  • Background in code review, technical writing, or software quality assurance
  • Experience working across both frontend and backend JavaScript environments

Why Join Us

  • Work on cutting-edge AI projects alongside leading research labs and AI teams
  • Fully remote and flexible — work when and where it suits you
  • Freelance autonomy with the structure of meaningful, task-based work
  • Make a direct, tangible impact on how AI understands and generates code used by developers worldwide
  • Training and onboarding support provided — no prior AI experience necessary
  • Potential for ongoing work and contract extension as new projects launch

Apply now

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