Mainframe Technical Lead

**Inclusion without Exception:**

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

**About TCS**

TCS is an IT services, consulting, and business solutions organization that has been partnering with many of the world’s largest businesses in their transformation journeys for over 55 years. Its consulting-led, cognitive-powered portfolio of business, technology, and engineering services and solutions is delivered through its unique Location Independent Agile™ delivery model, recognized as a benchmark of excellence in software development. A part of the Tata group, India's largest multinational business group, TCS operates in 55 countries and employs over 607,000 highly skilled individuals, including more than 10,000 in Canada. The company generated consolidated revenues of US $ 30 billion in the fiscal year ended March 31, 2025, and is listed on the BSE and the NSE in India. TCS' proactive stance on climate change and award-winning work with communities across the world have earned it a place in leading sustainability indices such as the MSCI Global Sustainability Index and the FTSE4Good Emerging Index.

**Required Skill Set**

• Mainframe Application Analysis Migration
• Analyze COBOL programs, copybooks, and batch flows to identify migration complexity, dependencies, and refactoring needs.
• Remediate code for compatibility with target platforms (e.g., zOS to cloud-hosted services, replat form to emulation, or rewrite).
• Document current state and design future-state architectures for application components and batch processes.
• Database Data Migration (DB2)Evaluate DB2 schema, stored procedures, and SQL optimize queries and plan migration to cloud databases (e. g., Amazon RDSAurora, Azure SQL, Cloud SQL).
• Define data mapping, cleansing, and validation rules perform cutover planning and reconciliation for high-availability workloads.
• Batch Orchestration (JCL)Assess and refactor JCL streams, utilities, and scheduler integrations (e.g., Control-M) for cloud or hybrid execution.
• Create runbooks and fallback procedures for batch cycles, including error handling, logging, and rerun strategies.
• Testing Quality Assurance Build unit, integration, and regression test suites ensure functional parity and performance SLAs post-migration.
• Establish test data strategies and coordinate UAT with business stakeholders.
• Performance, Reliability Operations Profile performance bottlenecks tune COBOLDB2 interactions and batch schedules for cloud targets.
• Define observability (logs, metrics, traces) and implement operational dashboards alerts.
• Risk Compliance ensure alignment with BFSI regulatory controls (PIIPCI, data residency, audit trails).
• Participate in security reviews, encryption key management, and access control hardening.
• Collaboration Delivery Work cross-functionally with Cloud Architects, Data Engineers, Security, and Business SMEs.
• Contribute to migration waves, release planning, and change management documentation.
• Required Qualifications712 years of hands-on experience with COBOL, DB2 for zOS, and JCL (including utilities like DFSORT, IDCAMS, IEBCOPY, BMCIBM tools).
• Strong understanding of mainframe batch processing, VSAM, file transfers (SDSFFTPSFTP), and job scheduling (e.g., Control-M, CA-7).
• Experience in application assessment and migration from mainframe to cloud hybrid architectures.
• Expertise in SQL tuning and DB2 performance (EXPLAIN plans, indexes, statistics, commit strategies).Solid practices in SDLC, version control, CICD, and testing for legacy modernization.
• Excellent communication skills with ability to translate technical findings into business impacts.
• Nice-to-Have (Preferred)
• Exposure to cloud platforms (AWSAzureGCP) and migration tools (e.g., Micro Focus, Modern Systems, IBM zOS Connect, IDzRDz).
• Knowledge of API enablement for mainframe services (RESTJSON via zOS Connect, MQ).
• Experience with data replication and CDC tools (Q Replication, IBM InfoSphere, AttunityCDC).
• Familiarity with DevOps for legacy workloads, Infra-as-Code (Terraform), and containerization concepts.

Salary Range Format

Base Salary Range: 90,000 CAD/Yr –120,000 CAD/Yr

• AI Usage Note:

TCS does not use artificial intelligence tools for candidate screeni ng or evaluation.

• This posting is for a current vacancy
• The hiring process includes an initial screening by the TCS Hiring Team, followed by a technical evaluation and managerial discussion conducted by the Business Team, and concluding with the final HR evaluation.

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Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.

Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.

**Location**

Toronto, ON

**Job Function**

TECHNOLOGY

**Role**

Engineer

**Job Id**

400083

**Desired Skills**

DevOps | JCL | SQL | COBOL DB2 | Mainframe Cobol | ZOS Admin