Senior Mainframe Developer - Hybrid

We are seeking a highly skilled Mainframe Developer with 8+years of experience in designing developing enhancing and supporting enterprise-scale Mainframe applications. The ideal candidate should possess strong expertise in Cobol DB2 Host/Mainframe IDz IMS DC/DB ISPF JCL Mainframe Mainframe application design Endevor SAS ServiceNow TIBCO MFT TSO VSAM zOS with hands-on experience in application development production support performance tuning troubleshoot

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.**

Location: Toronto - ON
Work model: Hybrid

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3 days a week in a client or Cognizant office in Toronto , Ontario. Regardless of your working arrangement, we are here to support a healthy work-life balance though our various wellbeing programs.

What you need to have to be considered:

• Analyse business requirements and prepare technical design specifications.
• Design develop test and maintain Mainframe applications using COBOL DB2 JCL and VSAM.
• Develop and modify batch and online processing programs to meet business requirements.
• Create maintain and troubleshoot JCLs PROCs and batch schedules.
• Write complex DB2 SQL queries and optimise database performance.
• Perform impact analysis code reviews unit testing system testing and production implementation.
• Support production incidents perform root cause analysis and implement permanent fixes.
• Utilise TSO ISPF SDSF File-AID SPUFI and other Mainframe tools for development and debugging activities.
• Work closely with business analysts testing teams and stakeholders throughout the SDLC.
• Prepare technical documentation implementation plans and operational procedures.
• Participate in Agile ceremonies including sprint planning stand-ups retrospectives and release activities.
• Mentor junior developers and contribute to knowledge-sharing initiatives.

Salary and Other Compensation:

Applications will be accepted until 11/10/2026.

The annual salary for this position is between $60K (CA) – 117K (CA) depending on 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.

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.

Additional employment information
Compensation 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.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.

Applicants for US based positions must be currently authorized to work for any employer in the United States. The company is unable to provide employment-based immigration sponsorship for US based positions.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com for roles based in the Americas or CareersIndia2@cognizant.com for roles based in India.

About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.