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Mainframe Developer

Job in Jacksonville, Duval County, Florida, 32290, USA
Listing for: Programmers.io
Full Time position
Listed on 2026-02-16
Job specializations:
  • Software Development
    Software Engineer, Backend Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

We are seeking a skilled Mainframe Developer to join our team and support the development, maintenance, and enhancement of mission‑critical applications. The ideal candidate will have extensive experience in COBOL, DB2, JCL, CICS, IMS‑DB, and other mainframe technologies, with a strong focus on application development and 24/7/365 production support.

Key Responsibilities
  • Design, develop, test, and implement new and existing business applications.
  • Provide round-the-clock production support and troubleshoot Mainframe systems to ensure high availability and reliability.
  • Develop interfaces and reports to support business operations.
  • Conduct system integration and user acceptance testing.
  • Review, modify, and debug existing programs to improve performance and reliability.
  • Collaborate with cross-functional teams to resolve issues and implement enhancements.
Required Qualifications
  • 5 to 15 years of hands‑on experience in:
  • Experience in providing 24/7/365 production support for critical systems.
  • Strong problem‑solving and analytical skills.
  • Excellent communication and teamwork abilities.
Preferred Qualifications
  • Experience with job scheduling tools like IWS.
  • Familiarity with debugging and file management tools.
  • Exposure to Agile or Dev Ops environments is a plus.
Soft Skills
  • Strong organizational and time management skills.
  • Ability to work independently and in a team‑oriented environment.
  • Proactive attitude with a focus on continuous improvement.
  • Effective communication with technical and non‑technical stakeholders.
  • Adaptability to changing priorities and business needs.
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