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# 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:** October 9, 2026
- **Apply:** https://www.dice.com/job-detail/7b9fb2d8-892a-4a34-9dfb-f8223a7562ab

## 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.