Senior Mainframe Engineer (COBOL, DB2, CICS)

Cognizant; Southwestern Ontario; Hybrid; CAD 111,000 - 126,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Paid Time Off

401(k) Plan

Employee Stock Purchase Plan

Parental Leave

Job summary

Cognizant is seeking an experienced Senior Mainframe Engineer to support and enhance critical enterprise applications in a complex COBOL/DB2/CICS environment on z/OS. You will design, implement fixes, and work with cross‑functional teams to ensure performance and reliability.

This hybrid Canada position offers flexible work arrangements, with emphasis on collaboration and on‑call readiness. Ideal candidates have strong incident management skills, a track record with mainframe tools, and the

Qualifications

• Hands-on COBOL, DB2, VSAM, JCL and CICS in enterprise mainframe environments.
• Working knowledge of SAS, Easytrieve, z/OS Connect and related tech.
• Experience supporting production apps with incident management and troubleshooting.
• Strong analytical and problem-solving skills for legacy systems.

Responsibilities

• Design, develop, maintain, and support mainframe apps using COBOL, DB2, VSAM, JCL, CICS, SAS, Easytrieve, and z/OS Connect.
• Investigate production incidents and implement sustainable solutions to complex issues.
• Collaborate with analysts, application and infra teams to deliver enhancements and support.
• Participate in design, code reviews, testing, deployment and ongoing maintenance.
• Identify opportunities to improve performance, automation, reliability and stability.

Skills

COBOL

DB2

VSAM

JCL

CICS

SAS

Easytrieve

z/OS Connect

Job description

About the role

We are seeking an experienced Senior Mainframe Engineer (COBOL, DB2, CICS) to support, enhance, and maintain critical enterprise applications within a complex Mainframe environment. In this role, you will leverage your expertise across core z/OS technologies to deliver reliable, secure, and high-performing solutions. You will collaborate with business and technical teams to resolve production issues, implement enhancements, and drive continuous improvement across key applications

In this role, you will:

• Design, develop, maintain, and support Mainframe applications using COBOL, DB2, VSAM, JCL, CICS, SAS, Easytrieve, and z/OS Connect.
• Investigate production incidents, perform root cause analysis, and implement sustainable solutions to complex application issues.
• Partner with business analysts, application teams, and infrastructure teams to deliver enhancements, technical solutions, and production support.
• Participate in technical design, code reviews, testing, implementation, deployment, and ongoing application maintenance activities.
• Identify opportunities to improve application performance, automation, reliability, and operational stability while ensuring compliance with enterprise standards.

Work model: Hybrid

We strive to provide flexibility wherever possible. Based on this role's business requirements, this is a Hybrid position. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered:

• Strong hands-on experience with COBOL, DB2, VSAM, JCL, and CICS in enterprise Mainframe environments.
• Working knowledge of SAS, Easytrieve, z/OS Connect, and related z/OS technologies.
• Experience supporting production applications, including incident management, troubleshooting, problem resolution, and application support.
• Strong analytical and problem-solving skills with the ability to understand and support complex legacy systems.
• Excellent communication and collaboration skills with the ability to work effectively across technical and business teams.

These will help you stand out:

• Experience supporting insurance, financial services, or other high-volume transaction processing environments.
• Knowledge of CAPSIL and/or Ingenium platforms.
• Experience driving application modernization, process automation, or performance improvement initiatives.
• Experience participating in on-call support for business-critical applications.
• Experience collaborating with distributed onshore and offshore teams in a hybrid work environment.

We're excited to meet people who share our mission and can make an impact in a variety of ways. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

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.**

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

Salary and compensation:

The annual salary for this position will be between $80,000 to 91,000 per year depending on the experience and other qualifications of the successful candidate. This position is also eligible for Cognizant's discretionary annual incentive program and stock awards, based on performance and subject to the terms of Cognizant's applicable plans.

Applications will be received by October 10th, 2026.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/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.