Senior Full-Stack Engineer
Build complete applications from scratch that will be used as examples for AI model development. Projects may include dashboards, management systems, workflow tools, and data-driven platforms.
- Field
- Software & coding
- Where
- United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
- Commitment
- part time
- Hours
- up to 20/week
- Posted
- 6 days ago
Pay data for your profession: Software engineer AI trainer jobs
How this pay compares
At $140/hr, this role pays more than 96% of the 220 open software & coding roles with a listed pay range, above the median of $70.
Among platforms with 10 or more priced software & coding roles, Mercor has the highest median ($88/hr across 18 roles) and OpenTrain AI the lowest ($65/hr across 107).
OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.
Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.
What you would earn at this rate
Rate
$140/hr
Per week, before tax
$2,800
Per month, if the work is steady
$12,133
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $3,068 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.
Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn
Open software & coding roles on each platform
The same kind of work, priced on every platform we track, with the best-paid open role on each.
| Platform | Open | Median | Best-paid open role |
|---|---|---|---|
| Mercor | 20 | $88/hr | Legacy Codebase Migration Expert$200/hr |
| micro1 | 25 | $75/hr | Strategic Project Lead, Coding/SWE$300k-500k/yr |
| Alignerr | 73 | $70/hr | DevOps / IaC Engineer$90-120/hr |
| OpenTrain AIthis role | 123 | $65/hr | Software Engineer, AI Code Evaluation$200/hr |
| Handshake AI | 10 | up to $90/hr | Senior Software Engineer - AI Data (US)Up to $150/hr |
“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.
All 251 open software & coding roles →The full listing
As posted on OpenTrain AI. See the original
The work
Build complete applications from scratch that will be used as examples for AI model development. Projects may include dashboards, management systems, workflow tools, and data-driven platforms.
- Develop full-stack applications using Next.js, Redis, SQL databases, and Tailwind CSS.
- Build features such as authentication, data management, real-time updates, reports, and business logic.
- Connect front-end interfaces, caching, and databases to keep applications responsive.
- Create working applications that show different software structures and use cases.
Pay, schedule, and requirements
- Pay: $140 per hour.
- Time: At least 20 hours per week.
- Language: Fluent in English.
- Location: Open to candidates in the United Arab Emirates, Antigua and Barbuda, Albania, Armenia, Austria, Australia, Bosnia and Herzegovina, Belgium, Bulgaria, Bahrain, Benin, Brunei, the Bahamas, Bhutan, Botswana, Canada, Switzerland, Côte d’Ivoire, Costa Rica, Cyprus, Czechia, Germany, Denmark, Algeria, Ecuador, Estonia, Spain, and Ethiopia.
- Location: Also open to candidates in Finland, France, the United Kingdom, the Gambia, Greece, Guatemala, Guyana, Hong Kong, Croatia, Hungary, Indonesia, Ireland, Israel, India, Iceland, Italy, Jamaica, Jordan, Kenya, Kuwait, Saint Lucia, Liechtenstein, Sri Lanka, Lithuania, Luxembourg, Latvia, Morocco, Moldova, Madagascar, North Macedonia, Mongolia, Malta, and Mauritius.
- Location: Also open to candidates in Mexico, Malaysia, Mozambique, Namibia, the Netherlands, Norway, New Zealand, Oman, Panama, Peru, the Philippines, Pakistan, Poland, Portugal, Qatar, Romania, Serbia, Rwanda, Sweden, Singapore, Slovenia, Slovakia, Senegal, El Salvador, Thailand, Tunisia, Turkey, Trinidad and Tobago, Taiwan, Tanzania, Uzbekistan, Vietnam, South Africa, and the United States.
- You should be skilled in Next.js, including server-side rendering and API routes, and in Redis for caching, session management, and real-time data.
- You should be able to design SQL schemas, relationships, queries, and database optimizations using PostgreSQL, MySQL, or a similar system.
- You should be able to build production-quality systems connecting the front end, caching, and databases, and create responsive interfaces with Tailwind CSS.
How it works
Apply on OpenTrain with your resume, then complete the application on the hiring site.
About AI training work
AI training work uses human-made examples to help AI systems learn. The applications you build can give models examples of realistic software structures, data flows, interfaces, and business logic.
From applying to your first payment on OpenTrain AI
- 1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
- 2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
- 3
Funded milestones
The client funds each milestone before work starts.
- 4
First payment
OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.
Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts
Full OpenTrain AI profile: watch-outs and the public record →Pay history
OpenTrain AI has listed this role at $140/hr since Nov 7, 2026 with no change.
Across OpenTrain AI's software & coding roles, the median listed pay was $65/hr on Nov 1, 2026 (72 roles) and is $65/hr as of Nov 11, 2026 (107 roles).
What workers report about OpenTrain AI
Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.
Other software & coding roles
- Strategic Project Lead, Coding/SWEmicro1$300k-500k/yr
- Legacy Codebase Migration ExpertMercor$200/hr
- Open Source GitHub Maintainer Code ReviewOpenTrain$120-200/hr
- Software Engineer, AI Code EvaluationOpenTrain$200/hr
- Software Engineer (Electron.js)micro1$200k-320k/yr
- DevOps / Platform Engineer Talent NetworkMercor$70-150/hr