This job post has expired on July 02, 2026. It is likely that the position has already been filled.
Expert Mainframe Engineer – COBOL/ABAP at Mercor
posted 4 months agoExpert Mainframe & Enterprise Engineer (COBOL / ABAP) | $130–210/hr | Worldwide Remote | 20–40 hrs/week
A leading AI research organization is seeking seasoned COBOL and/or ABAP engineers to evaluate how advanced AI systems perform in specialized enterprise and mainframe engineering domains. Your real-world expertise will directly shape how cutting-edge AI learns to operate in critical infrastructure environments. Single-language specialists are strongly encouraged to apply.
What You'll Do
- Apply your deep language expertise to evaluate complex technical tasks against real-world professional standards
- Review intricate code-level scenarios and deliver precise, structured written assessments
- Work inside containerized repositories (Docker), running and interpreting programmatic and CI-style checks to assess engineering environment soundness
- Provide clear written rationales explaining your expert judgments
- Complete well-defined, time-bounded tasks with explicit evaluation criteria
Who We're Looking For
- 8+ years of professional development experience in one or both of:
- COBOL — IBM mainframe (z/OS) production development; JCL, CICS, VSAM, DB2; banking, insurance, or government systems
- ABAP — SAP development in R/3 or S/4HANA; Workbench tools (SE38, SE80, SE11); BAPIs, BADIs, Enhancement Spots; enterprise ERP environments
- Comfort working in Linux/Docker-based repo environments and reading automated CI checks — or the ability to ramp up quickly
- Ability to articulate not just what code does, but why it is correct or idiomatic, clearly in writing
- Backgrounds in banking, insurance, enterprise ERP, or government are highly valued; a GitHub profile is not required
Engagement Details
- Compensation: $130–210/hour, based on depth and experience
- Commitment: 20–40 hours per week; task flow is variable and may arrive in waves
- Flexibility required, including occasional weekend availability
- No proprietary tooling needed — no SAP license or mainframe access required
COBOL and ABAP power critical global infrastructure yet remain among the least-represented domains in AI research. Your expertise is rare and your contributions will have a meaningful, lasting impact.
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.