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Added 3 months ago
X
Senior Engineer
Xero
Vancouver, British Columbia
- Full-time
Enhancing the developer experience through the maturation of CI/CD concepts, tooling, and TDD practices.
Added 1 month ago
I
Technology Lead - DevOps
Infosys
Mississauga, ON
- Full-time
Infosys is seeking a DevOps Lead. This position will interface with key stakeholders and apply technical proficiency across different stages of the Software Development Life Cycle including…
Added 4 months ago
J
Principal Software Engineer - Canada
JobGet
Remote, Canada
- $160,000 to $190,000 CAD / year
- Full-time
- Remote
Rigorous Testing & Validation: Lead by example in code quality by defining testing standards and utilizing AI to generate robust test suites and edge-case discovery that ensure…
Added 1 month ago
AC
Software and AI Team Lead
AXYZ CNC Routers
Hamilton, ON · Waterdown, ON
- Full-time
…team leadership and hands-on software development. You will lead three software developers and one software tester while contributing as the team’s fourth…
Added 1 month ago
Software Developer Full Stack Angular/.Net
Brightstar Lottery
Dieppe, NB
We’re looking for a Software Developer III Full Stack (Angular/.NET) to join a collaborative team in a senior-level, hands-on engineering role focused on designing, building, and sustaining…
Added 1 month ago
T
Director of Software Engineering
TechBlocks
Toronto, ON · Greater Toronto Area, Canada
- $150,000 to $220,000 CAD / year
- Full-time
Lead complex design sessions and work closely with customers and business partners to establish requirements to develop a given solution.
Added 3 months ago
Director, Software Engineering
MCAP
Waterloo, ON · Toronto, ON
efforts, including LLMs, agent frameworks, coding agents, and developer
Added 2 months ago
Senior Agentic Software Engineer
Lantern
Edmonton, AB
…engineering organizations to help modernize applications, improve developer productivity, accelerate platform transformations, and enable modern software delivery…
Added 1 month ago
OT
Principal IT Software Developer
Open Text Corporation
Waterloo, ON
- Other
The Principal Developer, IT – System Integrations is a senior technical leader responsible for the design, development, and evolution of enterprise integration solutions across complex,…
Added 5 months ago
RT
.Net Technical Lead - Burnaby
RedMane Technology
Burnaby, British Columbia
- Full-time
RedMane has a full-time opportunity for a Technical Lead as we continue to grow our Vancouver based practice. The Technical Lead is a hands-on role responsible for architecture and driving…
Added 4 months ago
X
Lead Engineer (Accounting Core Team)
Xero
Remote, Canada
- Full-time
- Remote
Enhancing the developer experience through the maturation of CI/CD concepts, tooling, and TDD practices.
Added 4 months ago
MT
Senior Applications Analyst
McCarthy Tétrault LLP
Vancouver, British Columbia
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
MT
Senior Applications Analyst
McCarthy Tétrault LLP
Toronto, Ontario
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
MT
Senior Applications Analyst
McCarthy Tétrault LLP
Montreal, Quebec
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
MT
Senior Applications Analyst
McCarthy Tétrault LLP
Calgary, Alberta
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
R
Senior .NET Developer
Rentsync
Toronto, ON
- $100,000 to $120,000 CAD / year
As our Senior .NET Developer you’ll architect and ship cloud-native APIs on .NET 8+ and Azure, set the engineering standard across the team, and lead how we put AI development tools to work…
Added 4 months ago
W
Staff Software Development Engineer
Wagepoint
Remote, Canada
- $140,000 to $170,000 CAD / year
- Full-time
- Remote
Lead the complete development lifecycle for new features - from design to deployment - ensuring code quality, maintainability, and performance across the full stack.
Added 4 months ago
DI
Senior DevOps Specialist
dcbel Inc
Montreal, Quebec
- Full-time
dcbel is a growing company building next-generation hardware and software for a future lead by electric vehicles (EVs) and distributed energy technologies like solar panels and battery…
Added 4 months ago
C
Lead .Net Software Developer
Citi
Remote, Canada
- Full-time
- Remote
The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination…
Added 4 months ago
U
Tech Lead, Software Development
Univeris
Toronto, Ontario
- Full-time
We are hiring for two distinct Tech Lead positions. Please read both role descriptions below and indicate your preference, if any, when applying.
Added 4 months ago
Digital Architect
Government of Alberta
Edmonton, Alberta
Lead AI first, human centered architecture, guiding end to end solution design from concept through implementation.
Added 4 months ago
LS
Lead Tools Programmer | Responsable Programmeur outils
Larian Studios
Quebec, Quebec
- Full-time
…Baldur’s Gate 3 & Divinity: Original Sin 2 is looking for a Lead Tools Programmer to join the team and help us in crafting the high calibre games our fans have come to…
Added 2 months ago
M
Data Transfer Team Lead
Medfar
Montreal, QC
- Full-time
As a Data Transfer Team Lead, you will play a key role in the onboarding experience of our new clients. You will lead the technical team responsible for extracting, transforming, and…
Added 2 months ago
M
Senior DevOps Specialist (SaaS Healthcare)
Medfar
Montreal, QC
- Full-time
In this role, you lead complex projects, drive improvements in infrastructure, observability, and operational processes, and mentor team members. You collaborate with architects, product…
Added 3 months ago
A
Lead Front & Back-End Developer
Astucemedia
Montreal, Quebec
- Full-time
As a Lead Front & Back-End Developer at Astucemedia, you will bridge the gap between high-level architectural vision and daily execution. Working in a high-collaboration environment, you…

Rentsync

Senior .NET Developer

Toronto, ON, Canada

$100,000 to $120,000 CAD / year

Apply About employer

Applications open in a new tab.

Job details

Pay: $100,000 to $120,000 CAD / year
Posting language: English
Posted: Jun 26, 2026

Original job description

About the Role:

As our Senior .NET Developer you’ll architect and ship cloud-native APIs on .NET 8+ and Azure, set the engineering standard across the team, and lead how we put AI development tools to work on real code every single 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 is a hybrid position, candidates are required to report in-office to one of Rentsync's regional offices 2 days per week on average.

Duties & Responsibilities:

Take full technical ownership of server-side logic and database structures - develop, maintain, and optimize them for performance and reliability.
Take a product-oriented approach to development: understand product goals and user needs, and propose solutions that deliver real business value.
Design and implement RESTful APIs and other web services to support front-end functionality, based on descriptions from the product team.
Drive architecture decisions and uphold Clean Architecture, CQRS, and engineering standards across the team.
Lead the adoption and day-to-day use of AI development tools on real projects, and mentor the team in using them effectively.
Create and support Kubernetes configuration, deploy and run containerized services, and monitor their health and performance.
Collaborate with front-end developers, the QA team, and product managers to meet functional and non-functional requirements.
Implement data security and protection measures, including the safe handling of PII and other sensitive data.
Mentor mid-level and junior developers and raise the technical bar through code reviews and knowledge sharing.
Troubleshoot, debug, and resolve issues in production and development environments.
Stay current with emerging back-end technologies and best practices.

Essential Knowledge, Skills & Abilities:

Modern .NET engineering fundamentals: Clean Architecture, CQRS / MediatR, and Domain-Driven Design.
Microsoft Azure platform: Compute Services, Azure SQL Database, Service Bus, Storage, Entra ID, Key Vault, and Application Insights.
Kubernetes (K8s) concepts and configuration (manifests / Helm) and the operation of containerized services.
SQL Server internals: schema and index design, execution-plan analysis, transactions, and concurrency.
Secure handling of PII and other sensitive data.
Expert-level Entity Framework Core: advanced querying, performance tuning, and migrations.
Modern C# patterns (C# 12+): primary constructors, records, nullable reference types, and source generators.
Advanced T-SQL and query tuning.
Authoring and supporting Kubernetes manifests and Helm; deploying and operating containerized services; monitoring health, logs, and resource usage.
Deploying to the cloud via DevOps pipelines.
Daily, fluent use of AI development tools (e.g., GitHub Copilot, Claude Code, Cursor).
Security-focused code review - spotting code and data-handling problems during reviews.
Review, verify, and safely ship AI-generated code - and raise the whole team’s effectiveness with these tools.
Design and operate cloud-native solutions.
Take full technical ownership of design, delivery, and quality.
Mentor developers, lead code review, and set and uphold engineering standards.
Translate product goals and user needs into technical solutions - and proactively propose better ones.
Troubleshoot, debug, and resolve issues across production and development environments.

Essential Qualifications:

8+ years of professional experience with modern .NET / .NET Core, building APIs for business-oriented projects.
2+ years carrying full technical ownership of design, delivery, and quality.
Located in and legally entitled to work in Canada
Able to work in one of Rentsync's regional offices (Toronto, Montreal or St. Catharines) 2-3 days per week on average

Additional Preferred Qualifications:

2+ years of professional experience mentoring or leading junior developers
Hands-on experience integrating LLMs into .NET.

Rentsync is an equal opportunity employer. If you are selected to participate in the interview process and require unique accommodations, please don’t hesitate to let us know.

Successful candidates may be required to complete a criminal background check in the final phase of the interview process.

This is an open-ended job posting and may not represent a specific vacancy within the organization. Rentsync reserves the right to use Artificial Intelligence to screen and/or assess candidates.

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More about this job

Responsibilities

Architect and ship cloud-native APIs on .NET 8+ and Azure while maintaining full technical ownership of server-side logic and database structures. Lead the adoption of AI development tools and mentor junior developers to raise engineering standards across the team.

Requirements

Requires 8+ years of professional experience with modern .NET/ .NET Core and at least 2 years of technical ownership of design and delivery. Candidates must be located in and legally entitled to work in Canada.

Skills

.NET 8+
Azure
Kubernetes
C# 12+
SQL Server
Entity Framework Core
Clean Architecture
CQRS
Domain-Driven Design
RESTful APIs
Helm
DevOps Pipelines
AI Development Tools
T-SQL
MediatR
Cloud-Native Design

Visa sponsorship

Not detected in the job text

Keywords

.NET 8+
Azure
Kubernetes
C# 12+
SQL Server
Entity Framework Core
Clean Architecture
CQRS
MediatR
Domain-Driven Design
RESTful APIs
Helm
DevOps
GitHub Copilot
Claude Code
Cursor
T-SQL
PII Security
Cloud-Native
Azure SQL Database
Service Bus
Entra ID
Key Vault
Application Insights
Containerization
API Design
Backend Development
Software Architecture
Mentoring
Code Review

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