Software Engineer (4) - Premium Senior Engineer
Fast Switch · MI
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Jul 26, 2026
MI
Jul 27, 2026
What this job asks for AI summary
A senior full-stack engineering role centred on mainframe and modern web technologies, covering the full development lifecycle from architecture design through to deployment. Day-to-day work involves building and maintaining COBOL-based mainframe applications, APIs, and microservices, while also integrating AI-assisted development tools. The role suits an experienced engineer with a strong mainframe background who can also engage directly with customers to shape requirements.
Senior level · 10+ years · Bachelor's required
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
Why we read it this way (8)
No work location or metro area is specified in the posting; CBSA is left blank. The role appears to be US-based given the staffing firm (FastTek Global, Michigan-headquartered) and US-centric benefits, but no city or state is stated.
Employment type is not explicitly stated; the posting reads like a staffing/consulting placement but does not label it Contract or Full-Time.
The experience requirement is stated as '10+ years in IT; 8+ years in development' — the overall years minimum is set to 10 (the higher overall IT figure).
The Skills Required section lists 'AIPGEE' — this appears to be a typo or internal code with no recognizable technology meaning and has been omitted rather than invented as a skill.
The Skills Required section also lists 'AI-Assisted Development', 'AI Code Review', 'LLM API Integration', and 'Prompt Engineering' as distinct items; these have been consolidated into the canonical skill names 'LLMs' (covering LLM API Integration and AI-assisted development broadly), 'Prompt Engineering', and 'GitHub Copilot' (covering AI-assisted coding tools). 'AI Code Review' is a practice rather than a named tool and has been omitted per guidelines.
The posting is heavily mainframe-focused (COBOL, Z/OS, JCL, CICS, TSO/ISPF, CA-7, IBM DB2) combined with modern AI-assisted development tooling — an unusual but explicit combination reflected in the skills list.
Google Cloud Platform, BigQuery, and Data Migration appear under 'Skills Preferred' and are marked accordingly. 'Process Improvement' and 'Data Management' from that section are generic concepts and have been omitted.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): Root Cause Analysis.
Read the full posting
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