Sr. Mainframe Developer

MainframeMaster; Hartford (CT); On-site; USD 60,000 - 90,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k) plan

Paid holidays

Paid Time Off

Long-term and Short-term Disability

Paid Parental Leave

Employee Stock Purchase Plan

Job summary

Cognizant is seeking an experienced Sr. Mainframe Developer with 7+ years of expertise in mainframe technologies and Healthcare Claims processing to design, develop, and support enterprise Claims applications.

You will design, develop, test, and maintain mainframe systems using COBOL, JCL, DB2, VSAM, CICS, and MQ, and collaborate with cross‑functional and offshore teams to deliver compliant solutions. The role demands technical leadership, strong communication, and the ability to coordinate

Qualifications

• Strong experience with mainframe technologies, including COBOL, JCL, DB2, VSAM, CICS, and MQ.
• Experience with Healthcare Claims Adjudication processes and related business workflows.
• Strong understanding of code migration and release management processes.
• Experience with package creation and code promotion across Development, Test, QA, and Production environments.
• Knowledge of post-deployment validation and backout procedures.
• Excellent analytical, troubleshooting, and problem‑solving skills.
• Strong communication and interpersonal skills with the ability to collaborate with business stakeholders, cross‑functional teams, and offshore development teams.
• Experience working in Agile development environments.

Responsibilities

• Develop and implement technical solutions for Claims applications by transforming business requirements into scalable, efficient, and compliant mainframe systems.
• Design, develop, test, debug, and maintain mainframe Claims applications using COBOL, JCL, DB2, VSAM, CICS, and MQ.
• Collaborate with business analysts, QA teams, project managers, and support teams to ensure successful project execution.
• Provide technical leadership and mentoring to offshore team members and coordinate onsite‑offshore activities.
• Serve as a key point of contact for technical issue resolution.
• Troubleshoot production issues and optimize application performance.
• Conduct code reviews and ensure compliance with established coding standards and best practices.
• Support SIT, UAT, production deployments, and post‑implementation activities.

Skills

COBOL

JCL

DB2

VSAM

CICS

MQ

Healthcare Claims Adjudication

Agile development

Communication

Tools

COBOL tooling

Mainframe tooling

Job description

Sr. Mainframe Developer

Cognizant is seeking an experienced Sr. Mainframe Developer with 7+ years of strong expertise in mainframe technologies and Healthcare Claims processing. The successful candidate will design, develop, maintain, and support enterprise Claims applications while partnering with cross-functional and offshore teams to deliver scalable, efficient, and compliant solutions.

Responsibilities

• Develop and implement technical solutions for Claims applications by transforming business requirements into scalable, efficient, and compliant mainframe systems.
• Design, develop, test, debug, and maintain mainframe Claims applications using COBOL, JCL, DB2, VSAM, CICS, and MQ.
• Collaborate with business analysts, QA teams, project managers, and support teams to ensure successful project execution.
• Provide technical leadership and mentoring to offshore team members and coordinate onsite‑offshore activities.
• Serve as a key point of contact for technical issue resolution.
• Troubleshoot production issues and optimize application performance.
• Conduct code reviews and ensure compliance with established coding standards and best practices.
• Support SIT, UAT, production deployments, and post‑implementation activities.

Required Qualifications

• Strong experience with mainframe technologies, including COBOL, JCL, DB2, VSAM, CICS, and MQ.
• Experience with Healthcare Claims Adjudication processes and related business workflows.
• Strong understanding of code migration and release management processes.
• Experience with package creation and code promotion across Development, Test, QA, and Production environments.
• Knowledge of post‑deployment validation and backout procedures.
• Excellent analytical, troubleshooting, and problem‑solving skills.
• Strong communication and interpersonal skills with the ability to collaborate with business stakeholders, cross‑functional teams, and offshore development teams.
• Experience working in Agile development environments.
• Ability to work independently while contributing effectively within a team environment.

Salary and Other Compensation

The annual salary for this position is between $60,000 and $90,000, depending on the experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.

Benefits

• Medical, Dental, Vision, and Life Insurance
• Paid holidays plus Paid Time Off
• 401(k) plan and contributions
• Long‑term and Short‑term Disability
• Paid Parental Leave
• Employee Stock Purchase Plan

Disclaimer

The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Important Disclaimers

Please note: A few of our roles may require in‑person interviews at Cognizant offices or client locations, depending on project or client needs.

Candidates must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.

Application Deadline

Applications for this position will be accepted until August 20, 2026. Candidates are encouraged to apply as early as possible, as the posting may close sooner if a sufficient pool of qualified applicants is identified.

About Cognizant

Cognizant 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.