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Lorven Technologies Inc.

Senior Developer - Mainframe

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 27, 2026
Posting language: English
Posted: Oct 28, 2026

Original job description

Role Name: Senior Developer - Mainframe

Location: Toronto 4 days a week on site

Job Type: Contract

As a Senior Developer, you will be working in a development and support capacity on our core mainframe cards and transactions system.

The core application is a large, sophisticated mainframe-based system which connects clients to their banking products and services. This 24/7 application supports critical delivery channels such as Online Banking, POS, ATM and others.

Design, develop, test, deploy, support and evolve software to deliver banking services.
Lead conversion, attestation and audit initiatives
Manage individual priorities, deadlines and deliverables.
Assess and analyze business and technical requirements in order to provide estimates and establish plans and timelines
Create, update and contribute to critical documentation relevant to the projects
Effectively communicate and build rapport with team members and various IT partners
Available for after-hours production support when needed (rare)

Must-have

Completion of a post-secondary education
Production Support Experience.
Outstanding communication skills (written and verbal)
Strong background in software Maintenance especially mainframe
Expertise in COBOL, JCL, IMS (DB/Online/Batch), DB2, MQSeries, Git/Endevor and Zeke

Nice-to-have

Understanding/usage of z/OS Connect, IDz, zUnit and test automation
Experience with CI/CD mainframe pipeline
Familiarity with Java Cloud development

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More about this job

Responsibilities

Design, develop, test, deploy, support, and evolve software for a critical mainframe banking cards and transactions system. Lead conversion, attestation, and audit initiatives; manage deliverables; assess requirements and timelines; maintain project documentation; and provide occasional after-hours production support.

Requirements

A post-secondary education and production support experience are required, along with strong written and verbal communication skills and a background in mainframe software maintenance. Required technical expertise includes COBOL, JCL, IMS, DB2, MQSeries, Git or Endevor, and Zeke; experience with z/OS Connect, IDz, zUnit, test automation, mainframe CI/CD, Java, or cloud development is an asset.

Skills

COBOL
JCL
IMS
DB2
MQSeries
Git
Endevor
Zeke
Production Support
z/OS Connect
IDz
zUnit
Test Automation
CI/CD
Java

Visa sponsorship

Not detected in the job text

Keywords

Mainframe
Banking
Cards And Transactions
COBOL
JCL
IMS
DB2
MQSeries
Git
Endevor
Zeke
Production Support
Software Maintenance
z/OS Connect
IDz
zUnit
Test Automation
CI/CD
Java
Cloud Development
Online Banking
POS
ATM
Conversion
Attestation
Audit
Requirements Analysis

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