Job Summary
Seeking a Senior IBM z/TPF Software Engineer with 8+ years of experience developing, maintaining, and troubleshooting high-volume transaction-processing applications using HLASM/Assembler. The role focuses on application development, production debugging, root-cause analysis, system internals, and performance optimization.
Key Responsibilities
- Develop, maintain, and support IBM z/TPF applications using HLASM/Assembler.
- Troubleshoot production issues using z/TPF Toolkit, debuggers, dump analysis, and diagnostic tools.
- Analyze ECB processing, registers, storage, work areas, control blocks, flags, and transaction flows.
- Support TPFDF records, ordinals, chain records, and database access logic.
- Perform root-cause analysis and implement production-safe fixes.
- Trace complex assembler code and macro-generated processing flows.
- Conduct code reviews, mentor developers, and collaborate with architects and business teams.
- Prepare technical documentation and support testing, deployments, and post-release validation.
Required Qualifications
- Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent experience.
- 8+ years of IBM z/TPF and HLASM/Assembler experience.
- Strong knowledge of z/TPF architecture, ECB processing, storage management, and transaction processing.
- Experience with production debugging, dump analysis, and diagnostic utilities.
- Experience with high-volume transaction systems such as airline, transportation, reservation, ticketing, inventory, or logistics.
- Familiarity with Git, Jira, and Agile/Scrum.
Preferred Qualifications
- Experience with TPFDF and file/record structures.
- C and C/Assembler integration experience.
- Familiarity with z/OS, TSO/ISPF, and JCL.
- Experience modernizing and optimizing legacy assembler applications.