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Added 11 mins ago
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CPKC

Mainframe Software Developer

Calgary, AB, Canada

Job type: Contract
Apply by: Nov 1, 2026
Experience: Minimum 3 years of hands-on experience developing and supporting complex, integrated application systems for Mainframe systems
Posting language: English
Posted: Oct 2, 2026

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Original job description

Posting Start Date: 10/2/26

Join CPKC, North America’s first transnational railroad connecting U.S., Canada, and Mexico, where your career drives progress and safety is paramount. We connect communities, fuel economic growth, and provide meaningful work in a culture that values diversity, accountability, and pride. With opportunities for training, development, and advancement, you’re not just building a career - you’re part of something bigger. Together, we move goods, connect people, and create lasting change. Your future starts here.

PURPOSE OF THE POSITION:

Drive business success by designing, developing, testing, implementing, and maintaining robust software solutions on Mainframe Computer Systems. Deliver projects within an SDLC framework, support mission-critical applications, and foster best practices across the development team.

This is a 7 month fixed term contract with possible extensions.

POSITION ACCOUNTABILITIES:

Analyze, implement, maintain, and document system and application software
Diagnose, isolate, and resolve complex software issues; provide expert troubleshooting and problem fixing
Review, modify, and test existing programming systems, ensuring reliable and efficient operation in large-scale environments
Lead needs analysis and requirement gathering for application development and implementation
Ensure all delivered solutions align with business requirements and follow established SDLC methodologies
Develop, code, and test new application programs and features; maintain thorough documentation of all development and revisions
Share knowledge - coach developers on best practices and provide code reviews for quality assurance
Participate in 24/7 on-call support rotation to provide rapid response and resolution for business-critical systems
Monitor software health and performance, ensuring optimal application operation across the system lifecycle
Contribute to post-implementation reviews to foster continuous improvement

POSITION REQUIREMENTS:

Minimum 3 years of hands-on experience developing and supporting complex, integrated application systems for Mainframe systems
Proficient with a variety of programming languages, including Cobol-DB2/IMS, JCL and strong unit testing skills
Strong understanding of SDLC processes and best practices

PRE-EMPLOYMENT REQUIREMENTS:

Background Investigation

Criminal history check
Education verification
Professional references

BECOMING A RAILROADER:

As an employee with a North American presence, the possibility does exist that the location of your position may be changed based on organizational requirements.

Management Conductor Program

Becoming a qualified conductor or locomotive engineer is the single best way for a management employee to learn the business at CPKC. You may be required to obtain a certification or to maintain your current certification/qualification as a conductor or locomotive engineer.

CULTURE OF INCLUSION:

For our U.S. applicants, CPKC is an equal opportunity/affirmative action employer, inclusive of protected veterans and individuals with disabilities. For Canadian applicants CPKC is an employment equity employer committed to the principles of employment equity and inclusion. We encourage all qualified candidates to apply including: women, Black, Indigenous, People of Color (BIPOC), members of the LGBTQ+ community and people with disabilities. Accommodations for the job application process can be provided, as appropriate, upon request. All applicant information will be managed in accordance with the federal Personal Information Protection and Electronic Documents Act (PIPEDA).

Req ID: 106420
Department: Information Services & Network Service Centre (NSC)
Job Type: Fixed Term
Position Type: Non-Union
Location: Calgary, Alberta
Country: Canada
% of Travel: 0-10%
# of Positions: 1
Job Grade: 4
Job Available to: Internal & External

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More about this job

Responsibilities

Design, develop, test, implement, and maintain mainframe software and mission-critical applications within established SDLC processes. Troubleshoot complex issues, monitor application performance, document changes, support on-call operations, and coach developers through best practices and code reviews.

Requirements

Requires at least three years of hands-on experience developing and supporting complex, integrated mainframe application systems. Candidates must be proficient in COBOL with DB2/IMS, JCL, and unit testing, and have a strong understanding of SDLC processes and best practices.

Skills

COBOL
DB2
IMS
JCL
Unit Testing
SDLC
Requirements Gathering
Application Development
Software Troubleshooting
Software Testing
Application Maintenance
Technical Documentation
Code Review
Performance Monitoring
On-Call Support

Visa sponsorship

Not detected in the job text

Keywords

Mainframe Computer Systems
COBOL
DB2
IMS
JCL
Unit Testing
SDLC
Application Software
System Software
Requirements Analysis
Requirements Gathering
Application Development
Software Implementation
Software Maintenance
Software Troubleshooting
Code Reviews
Quality Assurance
Technical Documentation
Mission-Critical Applications
Performance Monitoring
On-Call Support
Continuous Improvement
Railroad
Information Services

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