Mainframe Developer at Codnatives · Chennai · 4 - 9 years · ₹5L - ₹20L / yr · Profitable · Posted 1 Jun 2026

ob Description :
Mainframe Developer/Analyst
Combination of COBOL, JCL, VSAM with DB2 – Resources need to be strong developers.
Technical Skills:
• 5 to 10 years of Hands on Development experience
• Very good Hands-on in Cobol, JCL, VSAM, Db2, Mainframe Utilities,
- Strong Coding experience in COBOL, JCL, DB2, VSAM.
- Work experience in CICS / MQ series.
- Strong analytical skills to analyze complex code independently and extract business rules.
- Willingness to WFO (5 days WFO) (No WFH).
- JAVA / JSON will be added advantage.
• Ability to design, code, unit test, turnover, implement and support the changes.
• Writing and executing the unit test scenarios/cases to ensure the code quality and reliability.
• Deep understanding of all lifecycle components (code, test, deploy)
• Ability to present designs to peers and Product Owner for approval.
• Troubleshooting and debugging code to resolve technical issues.
• Optimizing application performance to ensure efficient use of software resources.
• Good verbal and written communication and interpersonal skills
Process Skills:
- Should have worked in Agile Project
Behavioural Skills:
- Good Communication skills

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Job Description – Mainframe Developer
Position: Mainframe Developer
Experience: 6+ Years
Location: Chennai & Pune
Work Mode: Work From Office (WFO)
Joining: Immediate Joiners Preferred
Key Skills Required
- Strong hands-on experience in COBOL
- Good knowledge of JCL
- Strong experience with DB2
- Hands-on experience with VSAM
- CICS knowledge/experience is good to have
- Strong understanding of Mainframe application development and support
Role & Responsibilities
- Develop, enhance, maintain, and troubleshoot Mainframe applications
- Write and modify COBOL programs
- Create and maintain JCL jobs
- Work with DB2 databases and SQL queries
- Handle VSAM files and related processing
- Analyze production issues and provide timely resolutions
- Perform debugging, root-cause analysis, and code fixes
- Participate in application enhancements, testing, and deployment activities
- Collaborate with onsite/offshore teams and business stakeholders
- Follow standard development, testing, and release processes
Candidate Requirements
- 6+ years of relevant Mainframe development experience
- Strong proficiency in COBOL, JCL, DB2, and VSAM
- CICS knowledge will be an added advantage
- Good problem-solving and debugging skills
- Strong communication and interpersonal skills
- Candidates who can relocate to Chennai or Pune are welcome
Location & Relocation
📍 Chennai / Pune
✅ Relocation candidates can be considered
❌ Hyderabad-based candidates are strictly not eligible
Notice Period
⚡ Immediate Joiners preferred
Interested candidates can share their updated resume along with current location, preferred location, total experience, relevant experience, current CTC, expected CTC, and notice period.
Job Summary
We are looking for an experienced Mainframe Developer with strong hands-on expertise in COBOL, JCL, and VSAM. The candidate will be responsible for developing, enhancing, maintaining, and supporting enterprise mainframe applications running on IBM z/OS.
Key Responsibilities
- Develop, maintain, and enhance mainframe applications using COBOL.
- Create and maintain JCL for batch job execution and production processing.
- Design, access, and maintain VSAM datasets.
- Analyze business and technical requirements and translate them into technical solutions.
- Perform coding, unit testing, debugging, and implementation of mainframe programs.
- Troubleshoot batch failures, application issues, and production incidents.
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.
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We're seeking an experienced AS400 professional to join our team remotely! The ideal candidate will have a strong background in IBM iSeries (AS400) systems, including system administration, database management, and application development.
Key Responsibilities:
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Website:
Software Engineer II to join Planview’s Keyedin team.
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If this opportunity aligns with your experience and career goals, please share your updated resume and let me know a convenient time to connect.







