> Markdown version of [/jobs/ext/2268564-software-engineer-mainframe-assembler](https://www.wearedevelopers.com/jobs/ext/2268564-software-engineer-mainframe-assembler). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer- Mainframe/Assembler - **Company:** Software AG - **Location:** Denver, CO, United States (Remote available) - **Experience:** Expert - **Salary:** $130,000.0 - $145,000.0 - **Contract:** Permanent contract - **Skills:** Software Quality, Software Debugging, IBM Parallel Sysplex, IBM Mainframe, Network Service, Software Engineering, TCP/IP, Z/OS, 64bit - **Published:** August 27, 2026 - **Apply:** https://www.dice.com/job-detail/a9f15e5a-02a4-433e-906c-154751512f43 ## About the Role * 7+ years of professional software development experience with IBM z/Architecture 31-bit and 64-bit assembler instructions * Comprehensive knowledge and experience with IBM z/OS technology (architecture, software, and utilities) * Commitment to a high level of code quality and performance * Strong time-management skills, and the ability to manage complexities and competing priorities * Ability to combine judgment, experience, analytic and debugging skills, and business sense to make sound decisions * Very good Interpersonal/communication skills with sound writing skills * Useful to have experience with such technologies as zIIP, zEDC, Sysplex * Useful to have Network Communication Protocol experience (e.g. TCP/IP, CTCA, FCTC, XCF, VTAM) * Ability to work in a diverse and geographically distributed team * Self-motivated, self-developing and learning mindset ## Description * Design, implement, and optimize software written in IBM mainframe assembler in the z/OS environment. * Analyze, debug, and develop high-performance code for various products. * Implementation and testing of new code or enhancements for existing products. * Actively provide guidance, direction, and collaboration for QA and documentation * Take ownership and ensure proactive analysis and testing of products to avoid problems. * Contribution of creative and innovative ideas for products and features. ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Can This Elephant Dance? IBM Bob and the Future of AI-First Software Development](https://www.wearedevelopers.com/videos/100256-can-this-elephant-dance-ibm-bob-and-the-future-of-ai-first-software-development) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Debunking the Top 10 Myths about Web 3](https://www.wearedevelopers.com/videos/634-debunking-the-top-10-myths-about-web-3) - [Grappling With Clunky Old Software? Start by Understanding What’s Inside!](https://www.wearedevelopers.com/videos/1189-grappling-with-clunky-old-software-start-by-understanding-what-s-inside) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023) - [Is Switzerland Better Than Silicon Valley For Software Developers?](https://www.wearedevelopers.com/magazine/2-is-switzerland-better-than-silicon-valley-for-software-developers)