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AKKODIS

Senior Software Developer

On site

Toronto, Canada

Senior

Freelance

12-01-2026

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Skills

Test Architecture Programming Databases Organization SDLC

Job Specifications

Position: Senior Back End - Software Developer

Duration: 1 Year assignment (contract)

Client Location: Toronto (Onsite: 7.25 hours/day between 8:00 AM and 5:00 PM, Monday to Friday)

Engagement Model: Professional Services Engagement – B2B (Incorporated Entities Only)

Note on Assignment Type

This position is provisionally Onsite, requiring 7.25 hours per calendar day between 8:00 AM and 5:00 PM, Monday to Friday (excluding breaks). Conditions may change based on organizational requirements and at the discretion of the Hiring Manager.

About the Engagement

We are seeking an experienced Senior Back End – Software Developer to manage server-side logic and data interchange between backend systems and users within a large, integrated Mainframe IMS DB/DC environment. The role includes translating technical system specifications into working, tested applications; designing and maintaining databases; and resolving technical issues across implementation, conversion, and migration activities. You’ll collaborate across the SDLC with IT professionals to deliver stable, performant applications in accordance with OPS policies and standards.

Scope

The Senior Back End – Software Developer will:
Manage server-side logic, database definition/maintenance, and performance & responsiveness to front-end requests.
Translate technical system specifications into tested, working applications.
Develop detailed programming specifications; write/generate code; compile data-driven programs; maintain and conduct unit tests.

Assignment Deliverables

Design, code, test, debug, and document backend services and mainframe components (IMS DB/DC Full Function and FASTPATH).
Perform IMS Database Re-organization, Unload/Reload, and Recovery Control for hierarchical databases (IMS DB, VSAM).
Build and maintain job schedules, scripts, and recovery plans (e.g., CA Scheduling, MVS File‑Aid, MVS Abend‑Aid).

Expertise Required

Must Have:

10+ years of experience designing and developing Mainframe applications in large integrated IMS DB/DC environments.
Strong expertise in hierarchical database technologies (IMS DB, VSAM) including reorganization, unload/reload, and recovery control.
Proficiency in COBOL, JCL, Assembly, TSO/ISPF, BTS, Clist, REXX within the last 5 years.
Experience with CA Scheduling, MVS File-Aid, MVS Abend-Aid tools.
Hands-on experience with CA Telon, IBM ACB/BDB/PSB generation.

Nice to Have:

Knowledge of Internet-ready applications and Rapid Application Development (RAD) methodologies.
Familiarity with middleware and gateways integration.
Understanding of Accessibility for Ontarians with Disabilities Act (AODA) compliance.
Knowledge of OPS architecture, policies, and standards or similar large enterprise environments.

Security Clearance

Required.

Important

This is a business-to-business engagement. Candidates must represent an incorporated entity, hold a valid business number, maintain appropriate insurance, and invoice for services rendered.

How to Apply

Submit your resume in confidence via the Akkodis Canada website.

We thank all applicants for their interest in this opportunity. Only candidates meeting the above qualifications will be contacted for further discussions.

Accessibility:

At Akkodis, part of The Adecco Group, our purpose is simple: to make the future work for everyone. We live our values, Passion, Collaboration, Inclusion, Courage, and Customers at Heart, by fostering a workplace where diversity is celebrated and every voice matter. We encourage applications from individuals of all backgrounds and identities. Together, we’re making the future work for everyone.

About the Company

Akkodis is a global digital engineering company and Smart Industry leader. We enable clients to advance in their digital transformation with Talent, Academy, Consulting, and Solutions services. Our 50,000 experts combine best-in-class technologies, R&D, and deep sector know-how for purposeful innovation. We are passionate about Engineering a Smarter Future Together. With a shared passion for technology and talent, 50,000 engineers and digital experts deliver deep cross-sector expertise in 30 countries across North America, ... Know more