Remote COBOL Programming Expert - AI Trainer ($100-$200 per hour)Mercor • Elk Grove, California, US

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Remote COBOL Programming Expert - AI Trainer ($100-$200 per hour)

Mercor • Elk Grove, California, US

30+ days ago

Job type

Full-time

Remote

Job description

About the Opportunity A leading AI research organization is evaluating how advanced AI systems perform in specialized engineering domains, and is seeking expert engineers with deep, hands-on production experience in COBOL . The immediate focus is a benchmark of roughly 100 tasks centered on database migration in COBOL — you'll apply your mainframe expertise to assess complex, real-world technical scenarios and directly shape how cutting-edge AI performs on mainframe systems. What You'll Do - Apply your language expertise to evaluate technical tasks against real-world professional standards - Review intricate code-level situations — including database migration scenarios — and provide precise, structured written assessments - Provide clear written rationales explaining your expert judgments - Complete well-defined, time-bounded tasks with explicit evaluation criteria Who We're Looking For We value strong engineering fundamentals, fast ramp-up, and high ownership. The ideal candidate brings : - 5+ years of professional COBOL development — IBM mainframe (z / OS) production work; JCL, CICS, VSAM, DB2; banking, insurance, or government systems - Demonstrated project, professional, or research experience in one of the following supplemental languages : Rust, C++, Java, Kotlin / JVM, Python - Experience with financial system backends (e.g., banking, insurance) is a strong plus, especially anything touching data or database migration work - Ability to articulate not just _what_ code does but _why_ it's correct or idiomatic, clearly in writing - _Welcomed : _ practitioners from banking, insurance, or government backgrounds; non-traditional digital footprints are fine — a GitHub profile is not required Why This Work Matters COBOL runs critical infrastructure in global banking, insurance, and government systems, yet remains among the least-represented domains in AI research. The expertise you bring is rare, and your assessments directly influence how AI systems learn to operate in it. Engagement Details - Compensation : $100–200 / hour , based on depth and experience - This is a one-week sprint : a 2–3 day pilot, iteration on the production task set, then roughly a week of production work. Kickoff is targeted for this Friday, and we need experts who can stay highly engaged throughout - No proprietary tooling required — tasks are completable without employer-provided systems (no mainframe access needed)

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Remote COBOL Programming Expert - AI Trainer ($100-$200 per hour) • Elk Grove, California, US

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