Senior .NET Architect — Azure, AI & API Lead (Hybrid)

Rentsync; Toronto; Hybrid; CAD 100,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Rentsync is seeking a Senior .NET Developer to architect cloud-native APIs on .NET 8+ and Azure, set engineering standards, and lead how AI tooling is used on real code every day. This is a seat for an engineer who thinks like a product owner rather than a ticket-taker, and who wants to raise the bar for everyone around them.

This hybrid role requires in-office presence 2 days per week at a regional office (Toronto, Montreal or St. Catharines) to collaborate with product teams and drive delivery.

Qualifications

• 8+ years of professional experience with modern .NET / .NET Core.
• 2+ years carrying full technical ownership of design, delivery, and quality.
• Located in and legally entitle to work in Canada.
• Able to work in one of Rentsync's regional offices 2–3 days per week on average.

Responsibilities

• Take full technical ownership of server-side logic and database structures.
• Design and implement RESTful APIs and other web services to support front-end functionality.
• Lead architecture decisions and uphold Clean Architecture and CQRS.
• Mentor mid-level and junior developers and raise the technical bar.
• Collaborate with front-end, QA, and product managers to meet requirements.
• Ensure data security and protection of PII and sensitive data.
• Introduce and drive AI development tool usage on real projects.

Skills

.NET engineering

Kubernetes

Azure

Security practices

Code review leadership

AI tooling

Tools

Kubernetes manifests/Helm

SQL Server

Entity Framework Core

C# 12+

DevOps pipelines

GitHub Copilot

Job description

Rentsync is seeking a Senior .NET Developer to architect cloud-native APIs on .NET 8+ and Azure, set engineering standards, and lead how AI tooling is used on real code every day. This is a seat for an engineer who thinks like a product owner rather than a ticket-taker, and who wants to raise the bar for everyone around them.

This hybrid role requires in-office presence 2 days per week at a regional office (Toronto, Montreal or St. Catharines) to collaborate with product teams and drive delivery.