Software Developer - IBM iSeries (AS400) / COBOL Applications

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Date: Jun 26, 2026

Location: Renton, WA, US, 98055

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Company: PACCAR

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.

Job Functions / Responsibilities

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.

Qualifications

Bachelor’s degree in Information Technology, Computer Science, a related discipline is required.

Master degree in Information Technology or related discipline, 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 is required. 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.

Benefits

As a U.S. PACCAR employee, you have a full range of benefit options including:

401k 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 are provided with additional 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

Additional Job Board Information

Additional Job Board Information

Salary Range:

At PACCAR, we value talent and promote growth and development. We carefully consider numerous compensation factors including your education, training, or experience. The salary range for this position is $104,100 - $146,630 annually. Additionally, this role is eligible for the full range of benefit options listed above.

Additional Information:

PACCAR Parts is an E-Verify Employer

PACCAR has success with diverse teams of employees working together to achieve excellent results. Having a diverse and inclusive work environment ensures PACCAR has the talent needed to conduct business today and in the future by leveraging different backgrounds, skills, and viewpoints. We believe diversity in the workplace increases innovation, results in better decisions and increases employee engagement.

Division Information

PACCAR Parts is the global provider of aftermarket parts and services to support Kenworth, Peterbilt, DAF and TRP dealers around the world. This includes 21 distribution centers globally that support 2,300 dealerships and over 1,000,000 customers. Aftermarket support includes world class customer centers that deliver industry leading uptime in conjunction with our outstanding supply chain that delivers record levels of inventory availability for dealers and customers.

Company Information

PACCAR is a Fortune 500 company established in 1905. PACCAR Inc is recognized as a global leader in the commercial vehicle, financial, and customer service fields with internationally recognized brands such as Kenworth, Peterbilt, and DAF trucks. PACCAR is a global technology leader in the design, manufacture and customer support of high-quality light-, medium- and heavy-duty trucks under the Kenworth, Peterbilt and DAF nameplates. PACCAR designs and manufactures advanced diesel engines and also provides customized financial services, information technology and truck parts related to its principal business.

Whether you want to design the transportation technology of tomorrow, support the staff functions of a dynamic, international leader, or build our excellent products and services — you can develop the career you desire with PACCAR. Get started!

Nearest Major Market: Seattle

Nearest Secondary Market: Bellevue

Job Segment: Testing, Developer, Mainframe, Application Developer, Computer Science, Technology

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