RPG Developer

Hydrogen Group; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A well-established technology-driven organisation in Greater London seeks a Senior IBM i/RPG Developer to join their core technology team. You will lead the development and maintenance of core IBM i applications, implementing modern development standards and enhancing CI/CD capabilities. Candidates should possess over 10 years of IBM i development experience, with strong expertise in RPG, SQL, and DevOps principles. This role combines technical leadership with process improvement and offers an opportunity to influence software delivery across the organisation.

Qualifications

• 10+ years' IBM i development experience required.
• Hands-on experience with source control systems and CI/CD pipelines.
• Strong knowledge of DB2 for i and advanced SQL techniques.

Responsibilities

• Lead development and maintenance of core IBM i applications.
• Drive modern development standards using free-form RPG and SQL.
• Implement and enhance CI/CD and DevOps capabilities on the IBM i platform.

Skills

IBM i development

ILE RPG

RPG IV (free-form)

SQL

DevOps

Continuous Integration

Continuous Delivery

Tools

Git

Jira

Jenkins

Azure Pipelines

Job description

We're working with a well established, technology driven organisation seeking a Senior IBM i/RPG Developer to join their core technology team.

You'll play a lead role in shaping, modernising, and optimising mission-critical IBM i applications, taking ownership not only of development, but also environment builds, release management, and DevOps practices across the IBM i platform.

If you're someone who enjoys combining deep technical expertise with process improvement and automation, this could be a brilliant next step.

The Role

As a senior member of the team, you will:

• Lead the development, deployment, and maintenance of core IBM i applications
• Drive modern development standards using free-form RPG and SQL
• Implement and enhance CI/CD and DevOps capabilities on the IBM i platform
• Own release cycles and environment management across Dev, QA, and Production
• Help modernise and automate Legacy processes to improve delivery efficiency and reliability

This is a hands on, technically strategic role where you'll influence how software is built and released across the organisation.

What You'll Bring

Core Technical Expertise

10+ years' IBM i development experience

Strong experience with:

• ILE RPG
• RPG IV (free-form)
• CL
• SQL
• Deep understanding of IBM i environment structures, library management, and system utilities
• Experience developing and consuming SOAP/REST web services using Integrated Web Services (IWS)
• Strong knowledge of DB2 for i and advanced SQL techniques

DevOps & Tooling Experience

• Hands‑on experience with source control systems (Git, SVN) and modern branching strategies
• Experience implementing CI/CD pipelines in IBM i or hybrid environments
• Familiarity with build tools such as Jenkins, GitLab CI, or Azure Pipelines

Strong understanding of DevOps principles:

• Automation
• Continuous Integration
• Continuous Delivery
• Environment consistency
• Release & Environment Management
• Proven experience managing release cycles and deployment pipelines
• Building and maintaining Dev, QA, and Production environments

Familiarity with change management tools such as:

• Jira
• ServiceNow
• Rocket Aldon
• ARCAD
• TurnOver