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Senior Synon & Cobol400 Developer

Mash IT Solutions LLCUnited States🇺🇸United StatesPosted 26 Aug 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
United States
Posted
Yesterday
Agile

Job Description

Job Description

 

- Design, develop, modify, and enhance applications using SYNON/COOL 2E, COBOL400, CL/400, CLLE, and DB2/400.

- Develop and support RxCLAIM / pharmacy claims adjudication functionality and related business processes.

- Analyze and enhance complex claim processing logic, including business rules and system workflows.

- Develop and maintain integrations with downstream healthcare and PBM systems.

- Perform major enhancements and modifications to existing healthcare applications.

- Maintain, modernize, and improve existing AS/400 applications while developing new solutions.

- Analyze, troubleshoot, and resolve complex production and application issues.

- Investigate system defects, identify root causes, and implement effective technical solutions.

- Translate business requirements into technical designs and application changes.

- Document system flows, application functionality, interfaces, and business logic.

- Perform impact analysis for application changes and ensure changes do not negatively affect downstream processes.

- Conduct unit testing, integration testing, and support system/user acceptance testing as required.

- Collaborate with business analysts, technical teams, QA teams, and healthcare/PBM stakeholders.

- Deliver high-quality, reliable code with minimal supervision.

- Take ownership of assigned development activities and meet project milestones and deadlines.

- Provide technical guidance and assume leadership responsibilities when needed.

 

 

Qualifications

 

Required:

- 5+ years of hands-on experience with:- SYNON / COOL 2E

- COBOL400

- CL/400 and CLLE

- DB2/400

 

- Strong hands-on experience with RxCLAIM.

- Ability and willingness to take on technical leadership responsibilities when required.

- Experience working with pharmacy claims adjudication and claims processing systems.

- Strong knowledge of Healthcare / Pharmacy Benefit Management (PBM) processes and applications.

- Experience analyzing and modifying complex claims processing logic and business rules.

- Experience supporting integrations between RxCLAIM/AS400 applications and downstream healthcare systems.

- Strong production support, troubleshooting, and root-cause analysis skills.

- Ability to understand complex legacy applications and make enhancements with minimal supervision.

- Strong analytical and problem-solving skills.

- Ability to work indepaently in a remote environment while collaborating effectively with distributed teams.

Desired:

- Experience supporting large-scale healthcare or PBM platforms.

- Experience performing major enhancements to existing AS/400 healthcare applications.

- Strong understanding of legacy application architecture and modernization considerations.

- Experience documenting complex system flows and business logic.

- Experience working in Agile or structured.

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