RPG/WebSphere Developer/Supervisor

About the project

We are looking for an RPG/WebSphere Developer/Supervisor to join a project for a client in the United States.

You will work on business-critical applications running on IBM i (AS/400) and WebSphere platforms, combining hands-on software development and application maintenance with supervision of a small development team.

In this role, you will ensure system stability, performance, and security while contributing to the modernization of legacy and web-based applications. You will work closely with business stakeholders, coordinate development activities, review technical solutions, and support continuous improvement across core business systems.

Availability to work in the US time zone, until approximately 6:00–7:00 PM Polish time, and willingness to travel occasionally to the US for business purposes.

Responsibilities

• Design, develop, test, and maintain business applications using RPG on IBM i (AS/400).
• Work with WebSphere and related application-server technologies, including application deployment, configuration, maintenance, and performance optimization.
• Supervise and mentor a small development team, coordinate workloads, review deliverables, and support team members’ professional development.
• Troubleshoot application and system issues, perform root-cause analysis, and implement solutions to ensure system stability and reliability.
• Implement enhancements and improvements to existing business-critical applications.
• Collaborate with business stakeholders and cross-functional teams to gather requirements and translate business needs into technical solutions.
• Review code and promote software development best practices across the team.
• Participate in release and change-management activities to ensure smooth, controlled deployment of system changes.
• Monitor and support integrations between legacy systems and web- or service-based applications.
• Contribute to modernization initiatives across legacy and web-based applications.
• Prepare and maintain technical documentation, including system specifications, processes, and solution designs.

Requirements

• Strong professional experience in RPG development on IBM i (AS/400), including designing, coding, testing, and maintaining business applications.
• Hands-on experience with WebSphere or similar application-server technologies, including deployment, configuration, and performance tuning.
• Experience supervising or mentoring technical teams, including task coordination and review of technical deliverables.
• Strong knowledge of relational databases and SQL.
• Experience integrating legacy systems with web-based or service-based applications.
• Solid understanding of the software development lifecycle (SDLC), change management, and version-control tools.
• Strong analytical and problem-solving skills, with the ability to troubleshoot complex application and system issues.
• Strong communication skills and ability to collaborate effectively with technical teams and business stakeholders.
• Ability to gather business requirements and translate them into appropriate technical solutions.
• Ability to prepare and maintain technical documentation, specifications, and solution designs.
• Bachelor’s degree in Computer Science, Information Systems, or a related field, or equivalent practical experience.
• Availability to work full-time on-site in Follansbee, West Virginia, USA.

Nice to have

• Previous experience in manufacturing or industrial environments.
• Experience participating in legacy system modernization initiatives.
• Experience supporting business-critical applications and complex system integrations.

We offer

• Salary: 25,000–35,000 PLN net / B2B.