Sr. Mainframe Developer
Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 8, 2026. Cognizant scores A on the Alion truth index.
Cognizant is looking for an experienced Sr. Mainframe Developer for our fast-growing business area. An ideal candidate, someone who is a problem-solver, idea-maker and a high-energy individual. If you meet our background requirements and are looking for an opportunity to be rewarded for your skills and expertise, this is an ideal opportunity for you!
Experience Level: Minimum 7 - 20 years of Experience
Job Description:
Job Summary
This hybrid role is for a Software Engineer with experience in Cobol JCL CICS VSAM and DB2 on mainframe platforms focusing on the development enhancement and maintenance of stable and secure enterprise applications ensuring high performance regulatory compliance and seamless integration with upstream and downstream systems while collaborating with cross functional teams in a structured day shift environment.
Responsibilities
- Design develop and maintain Cobol based business applications on mainframe environments to support critical enterprise processes and ensure consistent system reliability
- Analyze functional and technical specifications to translate business requirements into efficient Cobol JCL CICS VSAM and DB2 components that are easy to maintain and extend
- Create review and optimize JCL jobs to orchestrate batch processing workflows improve throughput and reduce operational incidents across multiple environments
- Develop and refine CICS online transactions to deliver responsive and stable user interactions while maintaining strict adherence to performance and availability targets
- Design and tune VSAM file structures and DB2 database objects to ensure efficient data storage fast retrieval and robust data integrity for core business domains
- Perform detailed code reviews and static analysis on Cobol and associated components to identify defects early enforce coding standards and improve overall code quality
- Conduct unit testing component testing and integration testing using structured test cases to validate functionality performance and error handling before promoting code
- Investigate and resolve production incidents by analyzing logs dumps and data anomalies then implement corrective and preventive changes that minimize future disruptions
- Collaborate with cross functional stakeholders including analysts testers and operations teams to clarify requirements plan releases and align technical solutions with business goals
- Prepare and maintain clear technical documentation covering program logic interfaces datasets and operational procedures to support long term maintainability and knowledge sharing
- Participate in hybrid model ceremonies and status discussions using English communication skills to provide progress updates raise risks and coordinate dependencies across teams
- Apply secure coding and compliance practices in Cobol CICS VSAM and DB2 solutions to protect sensitive information and support the company mission of responsible digital services for society
- Continuously learn and adopt emerging tools and best practices in mainframe development to enhance productivity improve system performance and contribute to innovation within the organization
Qualifications
- Meet the experience range of one to five years working as a software engineer or developer on mainframe platforms with hands on responsibility for delivery of application changes
- Demonstrate strong proficiency in Cobol programming for both batch and online processing with the ability to design modular programs and reusable routines for complex business logic
- Show practical experience in writing and debugging JCL including job setup condition codes utilities and scheduling considerations in enterprise scale environments
- Exhibit working knowledge of CICS concepts such as transactions maps and program control to support stable online applications that are easy to troubleshoot and enhance
- Display solid understanding of VSAM dataset types allocation parameters and access patterns enabling efficient design of file based solutions that support business performance needs
- Possess hands on experience with DB2 including table design SQL development and performance tuning to deliver reliable data services for transactional and reporting use cases
- Use English reading writing and speaking skills to interpret technical documentation collaborate with global teams and produce clear project artifacts that support shared understanding
- Adapt effectively to hybrid work arrangements by managing time collaborating across locations and using digital tools to maintain productivity and alignment with team objectives
- Apply structured problem solving skills to analyze defects performance issues and data problems while proposing practical solutions that improve the resilience of enterprise applications
- Maintain a disciplined approach to version control change management and testing practices so that each change is traceable auditable and aligned with organizational standards
- Show willingness to learn adjacent technologies automation tools and modern engineering practices which enhance mainframe delivery and help the company provide reliable digital services to clients and communities
About Cognizant
Cognizant (Nasdaq-100: CTSH) is one of the world's leading professional services companies, transforming clients' business, operating and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant is ranked 185 on the Fortune 500 and is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com or follow us https://twitter.com/Cognizant/
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