Senior Mainframe Engineer – Payments & Production Reliability

MainframeMaster; Toronto; Hybrid; CAD 105,000 - 129,000; Full time

Job summary

TD Securities offers a Sr. Mainframe Application Engineer position in Toronto to design, develop, deliver, and support high‑volume payment systems across mainframe and distributed components.

The role emphasizes reliability, performance, and security within a large, global technology team. We seek 5+ years in mainframe MVS/TSO/COBOL/JCL with Endevor, CA‑7, MQ and DB2/IMS, and the ability to lead complex initiatives in an Agile environment.

Qualifications

• 5+ years in mainframe MVS, TSO, COBOL, JCL in production environments.
• Hands-on experience with Endevor, CA-7, MQ and DB2/IMS.
• Experience supporting both online and batch mainframe workloads.

Responsibilities

• Design, develop, deliver and support complex payment systems on mainframe and distributed components.
• Lead end-to-end technical work, including planning, coding, testing, and production support.
• Provide technical guidance, mentor junior developers, and collaborate across teams.
• Ensure security, reliability, and operational stability of critical systems.

Skills

Mainframe MVS

TSO

COBOL

JCL

Endevor

CA-7

MQ

DB2

IMS

Agile

Spring

Education

Graduate/Undergraduate Degree in Technology

Tools

Endevor

CA-7

MQ

Job description

TD Securities offers a Sr. Mainframe Application Engineer position in Toronto to design, develop, deliver, and support high‑volume payment systems across mainframe and distributed components.

The role emphasizes reliability, performance, and security within a large, global technology team. We seek 5+ years in mainframe MVS/TSO/COBOL/JCL with Endevor, CA‑7, MQ and DB2/IMS, and the ability to lead complex initiatives in an Agile environment.