Software Developer - IBM iSeries; AS400​/COBOL

Requisition Summary. We are looking for a Software Developer to maintain, enhance, and modernize business-critical IBM iSeries applications, including COBOL-based ASI solutions. This role works with business partners, IT teams, and vendors to deliver reliable systems that support daily operations and long-term technology goals. This opportunity is well suited for someone who enjoys solving business problems, supporting essential applications, and learning both legacy and modern development practices.

We welcome applicants with relevant experience, transferable skills, and a willingness to learn the PACCAR application environment. The successful candidate will bring curiosity, accountability, collaboration, and a practical approach to development, testing, troubleshooting, documentation, and production support.

• Analyze business and technical requirements, design solutions, and provide effort estimates.
• Prepare functional, technical, testing, implementation, and support documentation.
• Develop, modify, test, and maintain COBOL, RPGIV, RPGLE, CLLE, and related IBM iSeries programs.
• Enhance existing applications, support modernization opportunities, and apply standards for quality, security, performance, and maintainability.
• Perform unit, integration, regression, and production validation testing.
• Troubleshoot incidents, analyze production data, perform root‑cause analysis, and implement reliable solutions.
• Monitor batch jobs, investigate abnormal terminations, and support timely production issue resolution.
• Support deployment planning, change management, release activities, and post‑implementation validation.
• Communicate status, risks, and options clearly while sharing knowledge with teammates, business partners, vendors, and global IT teams.

• Bachelor’s degree in Information Technology, Computer Science, or a related discipline is required.
• Master’s degree in Information Technology or a related discipline is preferred.
• 5 years of experience developing, maintaining, or supporting enterprise business applications.
• 5 years of experience with IBM iSeries application development or support using COBOL, RPGIV, RPGLE, CLLE, SQL, DB2; ASI experience is preferred but not required.
• Knowledge of database concepts, data structures, file layouts, queries, testing methods, and maintainable code practices.
• Familiarity with the Software Development Life Cycle, Agile or iterative delivery, documentation standards, and change control processes.
• Ability to troubleshoot application issues, analyze production data, and communicate clearly with technical and non‑technical audiences.
• Ability to work independently and collaboratively with business partners, vendors, and geographically distributed teams.
• Willingness to learn complex application environments, document findings, and contribute to team knowledge sharing.
• Willingness and ability to participate in a shared on‑call rotation and provide evening or weekend support when needed for business‑critical systems.

• 401(k) with up to a 5% company match.
• Fully funded pension plan that provides monthly benefits after retirement.
• Comprehensive paid time off – minimum of 10 paid vacation days (additional days awarded with seniority/years of service), 12 paid holidays, and sick time.
• Tuition reimbursement for continued education.
• Medical, dental, and vision plans for you and your family.
• Flexible spending accounts (FSA) and health savings account (HSA).
• Paid short‑ and long‑term disability programs.
• Life and accidental death and dismemberment insurance.
• EAP services including wellness plans, estate planning, financial counseling and more.
• This position is eligible for a holiday gift.

At PACCAR, we value talent and promote growth and development. The salary range for this position is $104,100 - $146,630 annually. This role is also eligible for the full range of benefit options listed above.

• PacCAR is an Equal Opportunity Employer/Protected Veteran/Disability.
• PacCAR Parts is an E‑Verify Employer.
• PacCAR believes in a diverse and inclusive work environment that promotes innovation and better decision making.