Where you can work from
Worldwide, per the listing
The source labels this role as open worldwide. Still check time-zone or payroll requirements in the description.
The company's headquarters is not the same as where you may work from. Visa sponsorship only matters if you would relocate; see below.
Visa sponsorship, if you would relocate
Sponsorship verdict
No sponsorship evidence yet
No government record and no wording either way. Not a refusal: ask the recruiter.
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No government sponsor record hereThis employer posted directly and does not match a government sponsor register.
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The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
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No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area.
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✓
Confirmed live todayWhen a source last listed this job as open.
Details and sources
- No salary bar for this route
- H-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence. It is not legal advice and never a guarantee: the employer and the immigration authority decide. Sign in to factor in where you can already work.
Before you apply
Sponsorship unknown
No register record and no sponsorship wording in the posting. Worth asking the employer before investing significant time.
These come from the posting’s own wording. Read the original listing to confirm. See better-fit alternatives →
About the role
Headquarters: United States
URL: https://opentrain.ai/
Full-Stack Engineer, Part-Time AI Code Evaluation - Remote (United States)
• $50–$100 per hour equivalent, paid per accepted task
• 100% remote
• Part-time
• Under 20 hours a week, you choose when
Work on AI code evaluation on your own schedule, using your full-stack engineering judgment to create, review and validate software tasks.
AI systems improve through examples reviewed by engineers. In this role, full-stack professionals design realistic tasks, assess generated code, write reference solutions, and explain technical gaps. The work is part-time remote contract work for under 20 hours per week.
What you'll do
• Create and solve realistic full-stack tasks involving user-facing features and APIs
• Trace requests and data across browsers and back-end services to judge whether an AI implementation works correctly
• Write professional reference solutions and validate code across front-end and back-end systems
• Review AI-generated code for security, performance and maintainability, and explain where it needs improvement
Why this is worth your time
• Earn $50–$100 per hour equivalent for accepted tasks that meet project specifications while applying your full-stack engineering judgment.
• Review AI-generated code for security, performance and maintainability across front-end and back-end systems.
• Use your full-stack experience to assess AI-generated solutions across unfamiliar codebases and complete software systems.
• Fully remote and flexible, no fixed shifts, no commute
Who this is for
• Strong professional experience building production full-stack applications across multiple programming languages
• Strong full-stack systems knowledge covering browser applications, APIs, application state, databases, service integration, architecture and debugging
• Professional fluency in English; experience contributing to complete software-system architecture, working in unfamiliar codebases, and solving difficult debugging problems
• No AI experience needed. Experience reviewing AI-generated code for security, performance and maintainability is helpful.
Pay and details
• $50–$100 per hour equivalent; pay is per accepted task, as an independent contractor
• Part-time, under 20 hours a week, you choose when; fully remote, United States
How to apply
1. Apply on OpenTrain (about two minutes): https://app.opentrain.ai/api/out/cmu3vn4y500000bgm9fcp5md7?ch=weworkremotely&sub=weworkremotely-cmu3vn4y5-us-2026-10
2. Complete a short application on the hiring platform.
3. If shortlisted, take a conversational AI interview with technical questions and a coding challenge, whenever it suits you.
Ready to apply your full-stack engineering judgment to AI code evaluation? Apply today.
About OpenTrain AI
OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.
To apply: https://weworkremotely.com/remote-jobs/opentrain-ai-full-stack-engineer
View original listing ↗