Posted 7 days ago
Senior Back End - Software Developer
@ modis
Toronto, Ontario
Overview
Akkodis is hiring a Senior Back End Software Developer for a 9-month contract in Toronto. The role builds and maintains large-scale enterprise web applications, REST APIs and microservices, and ensures accessibility and PCI compliance. The posting requires onsite work 7.25 hours per day, Monday to Friday, and B2B engagement through an incorporated entity.
Responsibilities:
- Design, develop, test and maintain large-scale enterprise applications
- Develop server-side business logic and database integrations
- Build and maintain REST APIs and microservices
- Integrate front-end and back-end components
- Deliver accessibility compliance validation and remediation documentation
Requirements summary:
- 10+ years of Java development experience
- 10+ years building large-scale multi-client web applications
- Minimum 5 years developing REST APIs
- Strong Oracle and/or SQL database experience
- 10+ years delivering PCI, WCAG 2.2 and AODA-compliant applications
- Experience with Azure DevOps
Tools & skills
Source and dates
Employer career site / ATS feed · careerpage
- Employer posting date
- 2026-10-30
- First seen by our source
- 2026-10-30
- Source record updated
- 2026-10-30
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 10+ years |
| Hours per week | 36.25 |
| Schedule | day |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Security clearance | Reliability status |
Summary and details written by AI from the posting; the employer’s posting is the authority.
modis
| Field | Value |
|---|---|
| Open jobs on Jobsy | 95 |
Position: Senior Back End - Software Developer
Duration: 9 Months 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
Akkodis is seeking a Senior Back End - Software Developer to support the development, enhancement, and maintenance of large-scale enterprise digital services. The successful consultant will play a key role in designing, developing, testing, and supporting mission-critical applications while ensuring compliance with accessibility, security, and industry standards.
This opportunity is ideal for an experienced software development professional with expertise in modern web technologies, microservices architecture, RESTful services, secure application development, enterprise databases, and accessibility-compliant solutions.
Scope
Design, develop, test, and maintain large-scale enterprise applications.
Develop and support server-side business logic and database integrations.
Translate technical and business requirements into scalable software solutions.
Develop and maintain REST APIs and microservices-based applications.
Integrate front-end and back-end components to deliver seamless user experiences.
Assignment Deliverables
Technical specifications and design documentation.
Unit testing and defect resolution artifacts.
Accessibility compliance validation and remediation documentation.
Deployment and implementation support documentation.
Knowledge transfer and operational support materials.
Expertise Required
Must Have:
10+ years of Java development experience.
Extensive experience in modern web frameworks technology stack: React, JavaScript (JS), NextJS, Node, Cascading Style Sheets (CSS), Restful APIs.
10+ years of experience developing large-scale multi-client web applications.
Strong experience working with Oracle and/or SQL databases.
Minimum 5 years of experience developing REST APIs and RESTful Web Services.
Experience with Azure DevOps.
10+ years of experience delivering applications compliant with:
PCI Standards
WCAG 2.2 Standards
Accessibility for Ontarians with Disabilities Act (AODA)
Experience using:
JAWS
WAI-ARIA
HTML5 Accessibility Standards
Nice to Have:
Experience with middleware and enterprise integration gateways.
Experience supporting public sector digital service initiatives.
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.
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