Senior AS400 iSeries COBOL Developer

Our client is seeking a Senior AS400/iSeries COBOL Developer to support and enhance mission‑critical mid‑range applications. This role requires deep hands‑on experience with COBOL/400, ILE, CLLE, SQL, and DB2400, along with strong knowledge of ACMS/MOM. The ideal candidate has extensive experience working in complex legacy environments and can lead development efforts in an onshore/offshore model.

No Visa Sponsorship | No Relocation Assistance

Contract Duration: 6 months | W2

Location: Onsite (Only local candidates will be considered)

Requirements:

• Lead and mentor team members in an onshore/offshore delivery model.
• Optimize and fine‑tune existing applications for performance and reliability.
• Support the development of technical roadmaps and modernization initiatives.
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement.
• Coordinate with stakeholders for requirement clarification and solution discussions.
• Analyze functional and technical requirements and translate them into robust solutions.
• Perform hands‑on development using COBOL/400, COBOL ILE, CLLE, SQL, and related AS400/iSeries technologies.
• Collaborate with business and technical teams to refine requirements and propose solutions.

Qualifications/Must-Haves:

• Experience working with ACMS/MOM.
• Strong communication and collaboration skills.
• Experience working in enterprise‑scale environments.
• 10+ years of hands‑on development experience with AS400/iSeries.
• Strong proficiency in: COBOL/400, COBOL ILE, CLLE, SQL, DB2400.
• Ability to lead development efforts and guide junior team members.
• Bachelor's degree in Computer Science, Information Technology, or equivalent experience.

Preferred Skills:

• Familiarity with Agile/Scrum methodologies.
• Background in large enterprise IT environments.
• Experience leading teams in an onshore/offshore model.

Work Environment:

• Full onsite schedule in Schaumburg, IL.
• Collaborative team environment with continuous integration and improvement focus.
• Candidates must live within a reasonable commuting distance; relocation is not supported.