IBM i Mainframe Developer

IBM i Mainframe Developer

Posted 4 days ago by RED Global

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Negotiable
Undetermined
Remote
England, United Kingdom
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Agile Methodology Application Programming Interface (API) Auditing Business Continuity And Disaster Recovery Control-M (Batch Scheduling Software) DevOps Disaster Recovery External Auditing Git (Version Control System) Github IBM I IBM Software Jenkins Job Scheduling (Batch Processing) RESTful API Scheduling Software Development SQL (Programming Language) Web Services

Summary: The IBM i Mainframe Developer role involves supporting and enhancing enterprise applications in a high-availability environment, primarily using RPG IV, CL, and DB2/400. The position requires collaboration across the full software development lifecycle, focusing on both legacy maintenance and modernization efforts. The role is contract-based for 6 months with remote work and occasional travel. Candidates should have significant experience in IBM i development and familiarity with Agile methodologies.

Key Responsibilities:

  • Develop and maintain applications using RPG IV / RPG Free, CL, and DB2/400
  • Design and optimize physical and logical files, stored procedures, and triggers
  • Perform batch job scheduling (e.g., using Control-M or native tools)
  • Troubleshoot and resolve performance issues and system errors
  • Collaborate with business analysts and QA teams in Agile/Scrum environments

Key Skills:

  • 5+ years of IBM i (AS/400) development experience
  • Strong command of ILE RPG, CLLE, SQL, and DB2/400
  • Experience with service programs, binding directories, and modular programming
  • Familiarity with source control tools (e.g., Aldon, Git)
  • Understanding of job queues, subsystems, and message handling
  • Experience with API integration, web services, or RESTful interfaces (desirable)
  • Exposure to DevOps pipelines, Jenkins, or GitHub Actions (desirable)
  • Knowledge of security auditing, disaster recovery, or HA/DR setups (desirable)

Salary (Rate): undetermined

City: undetermined

Country: United Kingdom

Working Arrangements: remote

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

IBM i Mainframe Developer

Location : England, UK - Remote with Occasional Travel

Type : Contract - 6 Months +

We’re hiring an experienced IBM i (AS/400) Developer to support and enhance enterprise applications in a high-availability environment. You’ll work across the full SDLC, contributing to both legacy maintenance and modernization efforts.

Key Responsibilities

  • Develop and maintain applications using RPG IV / RPG Free, CL, and DB2/400
  • Design and optimize physical and logical files, stored procedures, and triggers
  • Perform batch job scheduling (e.g., using Control-M or native tools)
  • Troubleshoot and resolve performance issues and system errors
  • Collaborate with business analysts and QA teams in Agile/Scrum environments

Essential Skills

  • 5+ years of IBM i (AS/400) development experience
  • Strong command of ILE RPG, CLLE, SQL, and DB2/400
  • Experience with service programs, binding directories, and modular programming
  • Familiarity with source control tools (e.g., Aldon, Git)
  • Understanding of job queues, subsystems, and message handling

Desirable

  • Experience with API integration, web services, or RESTful interfaces
  • Exposure to DevOps pipelines, Jenkins, or GitHub Actions
  • Knowledge of security auditing, disaster recovery, or HA/DR setups

Apply with up-to-date CV in English.

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