Mainframe Developer

Zoho; Bengaluru Urban; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Clovio Consulting in Bengaluru, India, is seeking a Senior Mainframe Developer with 6+ years of hands-on experience to design, develop and modernize mission-critical legacy applications on IBM mainframe z/OS. You will own end-to-end SDLC activities across COBOL, JCL, DB2, VSAM and CICS, and drive performance tuning.

You will lead batch and online development, support modernization efforts through REST/SOAP interfaces via z/OS Connect and contribute to DevOps on mainframe environments.

Qualifications

• 6+ years of core software development on IBM Mainframe z/OS.
• Proficiency in COBOL, JCL, and embedded SQL.
• Experience with DB2 and VSAM.
• Experience with mainframe debugging tools (Xpediter, Fault Analyzer, CA-InterTest).
• Familiarity with Endevor/ChangeMan/ISPW and CA-7/Control-M/ESP.

Responsibilities

• Design, code, test, and implement robust batch and online (CICS) mainframe applications using COBOL, JCL, DB2, and VSAM.
• Analyze complex business requirements, evaluate legacy codebases, and create technical specification documents and system design flows.
• Develop complex JCL procedures, control cards, utilities (SORT, IDCAMS, IEBGENER), and job schedules for high-volume batch workloads.
• Write, optimize, and debug embedded SQL within COBOL programs interfacing with DB2 databases.
• Assist in modernizing mainframe applications by creating REST/SOAP web services via z/OS Connect and enabling cloud integration.

Skills

COBOL

JCL

Embedded SQL

DB2

VSAM

Xpediter

CA-InterTest

Endevor

ChangeMan

ISPW

CA-7

Control-M

ESP

z/OS

Tools

Xpediter

IBM Fault Analyzer

CA-InterTest

File-AID

File Manager

SPUFI / QMF

Endevor

ChangeMan

ISPW

CA-7

Control-M

ESP

Job description

Bangalore North, India | Posted on 10/07/2026

Clovio Consulting is a next-generation IT consulting firm specializing in Human Capital Management (HCM) and Finance ERP solutions . We partner with organizations to streamline their enterprise processes, enhance workforce management, and optimize financial operations through cutting-edge technology and industry best practices.

Our Expertise

We provide consulting, implementation, and support services for leading ERP platforms, ensuring seamless integration and maximum business value. Our expertise spans across:

• HCM Solutions: Workforce planning, payroll, benefits, talent management, and compliance.
• Finance ERP: General ledger, accounts payable/receivable, financial reporting, and budgeting.
• ERP Implementations & Upgrades: End-to-end deployment, migration, and system upgrades.
• Integration & Customization: Tailored solutions to align ERP systems with unique business needs.
• Managed Services & Support: Continuous optimization, training, and post-go-live support.
  

Why Choose Us?

Industry Expertise: Deep knowledge of HCM and Finance ERP solutions across various industries.

Customer-Centric Approach: Customized strategies to meet specific business goals.

Proven Success: A track record of successful implementations and satisfied clients.

Innovation-Driven: Leveraging AI, automation, and cloud-based technologies for enhanced efficiency.

We work with leading ERP solutions, including but not limited to:

• SAP SuccessFactors & S/4HANA Finance
• Microsoft Dynamics 365

We cater to a diverse range of industries, including:

Our Mission

To empower businesses with intelligent, scalable, and future-ready HCM and Finance ERP solutions that drive efficiency and growth.

Job Description

We are seeking a high-performing Senior Mainframe Developer with 6+ years of hands‑on experience designing, developing, maintaining, and modernizing mission‑critical legacy applications. In this role, you will be responsible for end-to-end software development life cycle (SDLC) activities across core mainframe technologies, including COBOL, JCL, DB2, CICS, and VSAM. You will lead batch and online application development, optimize database performance, troubleshoot complex production issues, and support mainframe modernization and API integration initiatives.

Key Responsibilities

Design, code, test, and implement robust batch and online (CICS) mainframe applications using COBOL, JCL, DB2, and VSAM.

Analyze complex business requirements, evaluate legacy codebases, and create technical specification documents and system design flows.

Develop complex JCL procedures, control cards, utilities (SORT, IDCAMS, IEBGENER), and job schedules to process high-volume batch workloads efficiently.

Database & Performance Tuning

Write, optimize, and debug embedded SQL statements within COBOL programs interacting with DB2 databases.

Perform query tuning, index optimization, and memory management to improve batch runtimes and CPU resource consumption.

Maintain DB2 tables, views, aliases, and stored procedures in alignment with database administration standards.

Mainframe Modernization & Integration

Assist in modernizing mainframe applications by creating web service interfaces (REST/SOAP) via z/OS Connect to connect legacy logic with cloud and modern channels.

Support DevOps practices on mainframe platforms, utilizing modern source code management and automated build pipelines where applicable.

Production Support, Testing & Maintenance

Conduct unit testing, system integration testing (SIT), and support User Acceptance Testing (UAT) using tools like Xpediter or IBM Debugger.

Provide Tier 3 production support, conduct root‑cause analysis (RCA) for batch failures, and resolve abends promptly during critical window processing.

Utilize SCM tools (Endevor, ChangeMan) for code versioning, branching, and deployment across environments.

Requirements

Required Qualifications & Technical Skills

Experience: Minimum 6+ years of core software development experience on IBM Mainframe z/OS platforms.

Core Mainframe Technologies:

Languages: COBOL, JCL, embedded SQL.

Databases & Storage: DB2 (tables, indexes, stored procedures) and VSAM (KSDS, ESDS, RRDS).

Mainframe Utilities & Tools:

Debugging: Xpediter, IBM Fault Analyzer, or CA-InterTest.

File Management: File-AID, File Manager, or SPUFI / QMF.

Source Code Management: Endevor, ChangeMan, or ISPW.

Schedulers: CA-7, Control-M, or ESP.

Problem-Solving & Data Analysis: Deep understanding of mainframe data structures, flat files, copybooks, and high-volume batch data processing.

Preferred Qualifications

Knowledge of Mainframe Modernization techniques, such as z/OS Connect Enterprise Edition, z/OS REST APIs, or Kafka integration.

Exposure to Mainframe DevOps tooling (e.g., BMC AMI DevX / Topaz, Git for Mainframe, Jenkins).

Hands‑on experience with Assembler language, REXX scripting, or Java on z/OS.

Domain knowledge in Banking, Financial Services, Insurance (BFSI), Healthcare, or Retail transaction processing systems.