Description:

We’re Stackfee, a Montreal-based software agency building SaaS products, migrating legacy systems, and integrating complex business platforms for our clients.

We’re looking for a .NET Core developer who thinks like a systems architect, not just a coder. You’ll work on projects where understanding the full platform and the client’s business logic is as important as writing clean, efficient code.

What you’ll work on:

• Building new features and improving existing ones in .NET Core backends
• Integrating APIs, CRMs, ERPs, and payment systems
• Migrating features from legacy systems to modern .NET architectures
• Working closely with our team to plan feature impact before coding
• Working closely with our clients to understand their needs and to ask clarifying questions
• Diagnosing and fixing complex bugs that require understanding the whole system

Tech stack:

• Backend: .NET Core 8, ASP.NET Core MVC/Web API
• Frontend: Blazor, React, or Angular (we use all in different projects)
• Database: SQL Server (Azure SQL), PostgreSQL
• Infrastructure: Azure App Services, Azure Functions, Azure SQL
• Integrations: Stripe, Twilio, HubSpot, Acumatica, other 3rd-party APIs

We’re looking for someone who:

• Can read a codebase and quickly grasp how modules fit together
• Understands domain logic and platform dependencies before making changes
• Writes maintainable, testable C# code
• Uses Git properly (branching, PRs, meaningful commits)
• Communicates clearly in English and is comfortable asking clarifying questions to clients

Nice-to-haves:

• Experience in multi-tenant SaaS architectures
• Worked in agency or consulting environments
• Knowledge of Azure DevOps CI/CD pipelines
• Understanding of legacy-to-modern migration strategies

Why work with us:

• Direct collaboration with the founder/CTO — no layers of bureaucracy
• Interesting mix of client industries and problem spaces
• Fully remote with flexible hours