AS 400 Developer

Position Description We are seeking a hands-on Senior AS400 Developer with deep experience in RPG/RPGLE and COBOL to support critical AS400-based applications and near-term delivery needs. This role requires a strong individual contributor who is comfortable working in legacy IBMi/AS400 environments, performing end-to-end development and testing, while also contributing to modernization and integration initiatives with modern platforms and web services. The ideal candidate can execute independently, collaborate within an Agile/Scrum team, and use Azure DevOps (ADO) for day-to-day delivery tracking.

Your future duties and responsibilities Design, develop, and maintain complex AS400 / IBMi applications using RPG, RPGLE (free form), and COBOL

Perform hands-on testing of AS400 applications, including unit, integration, and smoke testing

Troubleshoot, debug, and resolve production and non production issues across AS400 environments

Develop and optimize DB2 database objects, queries, and embedded SQL

Support system integrations between legacy AS400 platforms and modern applications / APIs

Participate actively in Agile/Scrum ceremonies and collaborate closely with cross functional team members

Use Azure DevOps (ADO) for work item tracking, sprint execution, and defect management

Contribute to legacy modernization initiatives, including refactoring, integration, or incremental technology upgrades

Document technical designs, testing outcomes, and implementation details as needed Required Qualifications To Be Successful In This Role 10+ years of hands on AS400 / IBMi development experience

Strong expertise in RPG, RPGLE (free form), and COBOL

Solid experience with DB2, including embedded SQL and performance optimization

Proven experience testing AS400 based applications (unit, integration, and smoke testing)

Experience working with green screen applications and backend AS400 processing

Familiarity with IBMi operating system concepts and environments

Experience working in an Agile / Scrum delivery model

Hands on experience using Azure DevOps (ADO) or similar project tracking tools

Strong analytical, problem solving, and communication skills Nice to Have Skills: Experience with Java development

Experience with .NET / C# development

Experience modernizing or integrating legacy AS400 applications with modern platforms

Familiarity with web services, APIs, and JSON payloads

Experience with RDi (Rational Developer for i)

Exposure to DevOps practices applied to legacy systems

Experience working with LPARs CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications.

Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $80,000–$130,000. This role is an existing vacancy. Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees.

We benefit from our collective success and actively shape our company’s strategy and direction. Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs.

We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries. Come join our team—one of the largest IT and business consulting services firms in the world.