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Added 56 mins ago
C
Lead Mainframe Developer
Cognizant
Mississauga, ON
- $71,000 to $112,000 CAD / year
- Full-time
As a Lead Mainframe Developer you will make an impact by leading the development, support, and modernization of critical mainframe applications supporting enterprise banking operations. You…
Added 56 mins ago
C
Senior Mainframe Developer - Hybrid
Cognizant
Toronto, ON
- Full-time
…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…
Added 1 day ago
TI
Technical Systems Analyst
Tekgence Inc
Toronto, ON
- Contract
We are looking for a Technical Systems Analyst with strong experience in HP NonStop (Tandem) systems, COBOL development, and application support. The candidate will be responsible for…
Added 1 day ago
KR
Application Support Developer (L3)
KTek Resourcing
Brampton, ON
- Contract
Production support experience in 24x7 environments.
Added 3 days ago
C
Sr. Mainframe - z/OS System Programmer
CIBC
Toronto, ON
- Full-time
…Infrastructure, Information Technology (IT) Operations, and Production Support, as well as hardware and software vendors, to deliver solutions that align with technology and business…
Added 3 days ago
T
Software Engineer II
TD
Toronto, ON
- Full-time
Support application implementation and production activities.
Added 4 days ago
AI
Mainframe Quality Engineer
Apptoza Inc.
Toronto, ON
- Contract
Support User Acceptance Testing (UAT) and production validation.
Added 4 days ago
G
Sr Mainframe Developer
Galent
Toronto, ON
- Contract
Perform coding, testing, debugging, and production support for enterprise mainframe systems.
Added 4 days ago
KR
Application Support Developer
KTek Resourcing
Brampton, ON
- Contract
We are seeking an Application Support Developer (L3) to provide production support and deliver enhancements for telecom business applications.
Added 4 days ago
KR
Telecom Application Support Engineer
KTek Resourcing
Brampton, ON
- Contract
Production support experience in 24x7 environments.
Added 4 days ago
KR
Application Support Developer (L3)
KTek Resourcing
Brampton, ON
- Contract
Production support experience in 24x7 environments.
Added 4 days ago
Y
Application Development Support
Yochana
Brampton, ON
- Contract
Production support experience in 24x7 environments.
Added 4 days ago
KR
IBM iSeries Technical Lead
KTek Resourcing
Brampton, ON
- Contract
Lead L2/L3 production support, minor enhancements, and project delivery across telecom OSS/BSS applications.
Added 4 days ago
TT
AI Application Modernization Architect/Lead- Bilingual
Tech Talent International
Montreal, QC
- $140,000 to $160,000 CAD / year
- Full-time
…behaviors, the generation or transformation of components, the production of non-regression tests and assistance with technological or platform migrations. The consultants work together…
Added 4 days ago
TC
Mainframe Developer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $120,000 CAD / year
- Full-time
Design, develop, test, and maintain mainframe applications using COBOL, CICS, JCL, and DB2.Analyze business requirements and translate them into technical specifications. Develop and modify…
Added 5 days ago
AI
Mainframe QE
Apptoza Inc.
Toronto, ON
- Contract
Support UAT, production validation, and Agile ceremonies.
Added 5 days ago
AMS Lead IBM iSeries/AS400
Capgemini
Mississauga, ON
Lead production support activities for critical business applications.
Added 5 days ago
M
Ingénieur Support Mainframe / Mainframe Support Engineer
mthree
Montreal, QC
- Full-time
Nous recherchons un(e) Ingénieur(e) Support Mainframe pour rejoindre une équipe dynamique chez l'un de nos clients. Ce poste consiste à assurer le support des applications mainframe…
Added 6 days ago
Production Support
Capgemini
Montreal, QC
COBOL / Production Support Engineer (Deposit Systems)
Added 7 days ago
FN
Senior Application Developer, IT
First National Financial LP
Toronto, ON · East York, ON
- Full-time
Strong technical skills and hands on development and production support experience with legacy mortgage administration systems.
Added 7 days ago
L
Mainframe Developer
LTM
ON · Ontario, Canada
- $110,000 to $120,000 USD / year
- Full-time
Support critical production environments and meet defined servicelevel commitments
Added 11 days ago
Data Engineer
MCAP
Waterloo, ON · Toronto, ON
…addition, the Data Engineer will provide day-to-day operations and production support, including off-hours problem resolution of supported…
Added 11 days ago
T
IT Support Analyst IV
TD
Toronto, ON
- Full-time
Support a positive work environment that promotes service to the business, quality, innovation and teamwork and ensure timely communication of issues/ points of interest.
Added 11 days ago
T
Sr, Mainframe Engineer, TD Securities
TD
Toronto, ON
- Full-time
Responsible for coding, testing, packaging, deployment, and support of builds as code is promoted from development, system, acceptance, and production environments. Prepare for and…
Added 12 days ago
SS
Application Support Engineer – SWIFT & Mainframe, Assistant Vice President
State Street
Toronto, ON
- Full-time
The Mainframe & SWIFT Application Support Specialist is responsible for the end-to-end support, monitoring, and incident management of our Mainframe accounting processes and SWIFT messaging…

Apptoza Inc.

Mainframe Quality Engineer

Toronto, ON, Canada

Contract

Apply About employer

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Job details

Job type: Contract
Apply by: Nov 15, 2026
Experience: 7+ years of experience in Mainframe Quality Engineering or Mainframe Testing.
Posting language: English
Posted: Oct 16, 2026

Original job description

Role: Mainframe Quality Engineer

Location: Toronto, ON - Hybrid

Contract Role

Job Summary

We are seeking an experienced Mainframe Quality Engineer (QE) with a strong background in manual and automation testing of mainframe applications. The ideal candidate will have hands-on experience with COBOL, JCL, CICS, DB2, VSAM, and mainframe testing tools. Experience in the Banking or Financial Services domain is highly preferred.

Key Responsibilities

Design, develop, and execute test plans, test cases, and test scripts for mainframe applications.

Perform functional, integration, system, regression, and end-to-end testing.

Validate batch processing, online transactions, and file processing.

Analyze business and functional requirements to create effective test scenarios.

Execute SQL queries and validate data in DB2 databases.

Test batch jobs using JCL and validate outputs.

Identify, log, track, and verify defects using defect management tools.

Collaborate with Business Analysts, Developers, and stakeholders to resolve issues.

Support User Acceptance Testing (UAT) and production validation.

Participate in Agile ceremonies including sprint planning, daily stand-ups, and retrospectives.

Prepare test execution reports and maintain QA documentation.

Required Skills

7+ years of experience in Mainframe Quality Engineering or Mainframe Testing.

Strong knowledge of:

COBOL

JCL

CICS

DB2

VSAM

TSO/ISPF

Experience testing batch and online mainframe applications.

Hands-on experience with SQL for backend data validation.

Experience with defect tracking tools such as Jira or ALM.

Strong analytical and troubleshooting skills.

Excellent communication and collaboration abilities.

Apply About employer

More about this job

Responsibilities

Design and execute test plans, cases, and scripts for mainframe applications, covering functional, integration, system, regression, and end-to-end testing. Validate batch jobs, online transactions, files, and DB2 data; manage defects; collaborate with stakeholders; support UAT and production validation; and maintain QA reports and documentation.

Requirements

Requires 7+ years of mainframe quality engineering or testing experience, with strong knowledge of COBOL, JCL, CICS, DB2, VSAM, and TSO/ISPF. Candidates should have experience testing batch and online applications, using SQL for backend validation and defect tracking tools such as Jira or ALM, along with strong analytical, troubleshooting, communication, and collaboration skills.

Skills

Mainframe Testing
Quality Engineering
COBOL
JCL
CICS
DB2
VSAM
TSO/ISPF
SQL
Batch Processing
Online Transaction Testing
Test Planning
Defect Tracking
Jira
ALM
Agile

Visa sponsorship

Not detected in the job text

Keywords

Mainframe Quality Engineering
Mainframe Testing
COBOL
JCL
CICS
DB2
VSAM
TSO/ISPF
SQL
Batch Processing
Online Transactions
File Processing
Functional Testing
Integration Testing
System Testing
Regression Testing
End-to-End Testing
Test Plans
Test Cases
Test Scripts
Defect Management
Jira
ALM
User Acceptance Testing
Production Validation
Agile
Banking
Financial Services

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