Senior Backend Software Developer, Contract

The Dufresne Group

Intermediate Backend Software Developer developing backend systems for the eCommerce Team at The Dufresne Group. Collaborating with front-end teams and ensuring high performance on Shopify Plus platform.

Posted 4/23/2026contractWinnipeg • 🇨🇦 CanadaSeniorWebsite

Tech Stack

Tools & technologies

ASP.NETAWSAzureEntity Framework.NETSQL

About the role

Key responsibilities & impact

Design, develop, and maintain high-performing backend services and APIs using .NET technologies.
Provide estimations for requested features and work on Azure DevOps, following agile processes.
Develop and maintain a Shopify App as a Shopify Sales Channel.
Write, clean, and document code that is easy to follow, modular in design, and follows best practices.
Set up, configure, and build complex databases, including data structure normalization, query optimization, security, and integrity.
Collaborate with cross-functional teams to identify and address system bottlenecks, performance issues, and security vulnerabilities and provide technical support where required.

Requirements

What you’ll need

Bachelor’s degree or diploma in computer science, programming, software development or a related field.
A combination of education and experience will be considered.
5+ years of experience in ASP.NET, .NET Core, MVC and entity framework, C# for back-end development is an asset.
Strong proficiency with C# and.NET framework, with experience in ASP.NET, Web API, and Entity Framework.
Familiarity with database design, optimization, and querying using SQL Server or similar databases.
Understanding of the Shopify API, or the ability to learn the Shopify API quickly is required.
Knowledge of Microsoft Azure or Amazon AWS is an asset.
Experience with Agile methodologies and version control systems such as Git.
Excellent interpersonal and communication skills, both written and verbal.
Works well in a team environment and effectively collaborates on complex projects.
Critical thinker and problem solver, with strong attention to detail, organization, and prioritization skills.

Benefits

Comp & perks

Market competitive wages
Career growth and continuous development
Respectful and family-oriented working environment with strong company values.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

.NETASP.NET.NET CoreMVCEntity FrameworkC#SQL Serverdatabase designquery optimizationShopify API

Soft Skills

interpersonal skillscommunication skillsteam collaborationcritical thinkingproblem solvingattention to detailorganizationprioritization

Certifications

Bachelor’s degree in computer sciencediploma in programmingdiploma in software development