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Senior Software Developer

@ modis

Toronto, Ontario

ContractTemporary10+ years experience
Apply now
SIGNALS

Overview

Akkodis is hiring a Senior Software Developer on a one-year B2B contract in Toronto, onsite about 7.25 hours per day, Monday to Friday, between 8:00 AM and 5:00 PM. The role develops and modernizes enterprise .NET applications, Web APIs, data pipelines and reporting services, and requires 10+ years of .NET experience plus a security clearance.

Responsibilities:

  • Develop and enhance enterprise applications in .NET Core and C#
  • Build and consume Web Services and Web APIs
  • Support conceptual, logical and physical architecture artifacts
  • Build data pipelines and reporting services for dashboards

Requirements summary:

  • 10+ years of .NET Core and C# development experience
  • Experience with SQL Server, T-SQL and Oracle RDBMS
  • Experience with service-oriented architecture and data migration
  • Security clearance required

Tools & skills

Source and dates

Employer career site / ATS feed · careerpage

Employer posting date
2026-10-05
First seen by our source
2026-10-11
Source record updated
2026-10-11

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentSoftware development
Experience10+ years
Hours per week36.25
Scheduleday
Travelair: none · ground: none
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Job description

Position: Senior 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

Akkodis is seeking an experienced Senior Software Developer with extensive expertise in Microsoft .NET technologies, enterprise application development, solution architecture, database development, system integration, data migration, and Web APIs.

The successful consultant will work closely with business and technical teams to develop, maintain, enhance, and modernize enterprise applications. The role will involve application development, database design, testing, documentation, system integration, data migration, troubleshooting, and solution architecture.

The consultant will also support the development of conceptual, logical, and physical architecture artifacts and contribute to enterprise-level reporting, analytics, data integration, and application modernization initiatives.

Scope

  • Work collaboratively with business and technical teams to develop and validate application enhancements based on business requirements.

  • Maintain and enhance existing enterprise applications and resolve defects in a timely manner.

  • Design and develop secure, scalable solutions using C#, .NET/.NET Core, VB.NET, ASP.NET, MVC, JavaScript, jQuery, XML/XSLT, and related Microsoft technologies.

  • Develop and consume Web Services and Web APIs within service-oriented architectures.

Assignment Deliverables

  • Development and enhancement of enterprise applications using.NET Core, C#, VB.NET, ASP.NET/MVC, JavaScript, and related technologies.

  • Conceptual, logical, and physical architecture artifacts aligned with applicable enterprise architecture standards and patterns.

  • Secure and scalable Web Services, Web APIs, interfaces, and integration components.

  • Data pipelines and reporting services supporting enterprise reporting and executive decision-making.

  • Enhanced dashboard functionality supporting operational metrics, workload analytics, performance indicators, and executive reporting.

Expertise Required

Must Have:

  • 10+ years of experience with programming and developing in .NET Core. Experience with coding and implementing applications using, C#, .Net, VB.NET, ASP. Net, MVC, Identity C #, JavaScript, jQuery and XML/XLST. Experience with Windows Server, Microsoft SQL environment

  • Experience building applications using MS .NET elements such as Windows Communication Foundation, Windows Presentation Framework, MS Sync Framework, Web Client Software Factory, MS Web Services and Entity Framework. Experience with Visual Studio, Team Foundation Server, Dev Ops, DevExpress, Cloud development and Enterprise Library

  • Experience in Service oriented architecture, object-oriented design, user interface development. Design, develop and consume Web Services and Web API. Working with Use Cases, Class diagrams, component diagrams, state diagrams etc. Experience with Data Migration. Strong communication skills and team player. Experience coding and implementing SQL procedures, scripts, T-SQL and Object definitions for SQL Server. Experience with Oracle RDMS and Web Servers. Experience with relational and hierarchical database technologies. Experience in the use of information retrieval packages using SQL (Stored procedures, triggers, functions). Experience with one or more communications protocols. Experience with middleware and gateway.

Nice to Have:

  • Experience with TFS/Azure DevOps.

  • Additional hands-on development experience with C# and DevExpress.

  • Experience with enterprise data migration and legacy system consolidation.

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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