Senior Mainframe Developer - Hybrid
Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 20, 2026. Cognizant scores A on the Alion truth index.
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 mode l: 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.