Senior Backend Developer (C#/.NET)

Job summary

Build and maintain reliable, well-tested C#/.NET services for a high-volume enterprise platform, addressing scalability, performance, and data consistency challenges. Collaborate with product, QA, and customer-facing teams, while contributing to code reviews, mentoring, architectural decisions, and platform modernization.

Job details

Senior Backend Developer (C#/.NET) We are seeking a motivated Senior Backend Developer to join a global software development leader specializing in high-scale data synchronization and revenue-critical workflows. In this role, you will help evolve a mature, enterprise-grade platform that powers relationship engines for complex organizations globally. We are looking for an engineer who thrives on ownership, brings clarity to complex backend problems, and values a collaborative environment where continuous learning and continuous delivery are part of the daily rhythm. How You’ll Contribute Core Platform Development: Build, maintain, and write reliable, well-tested C#/.NET code for a core platform handling massive data volumes. Complex Problem Solving: Solve performance, high scalability, and data consistency challenges head-on. Cross-Functional Collaboration: Partner directly with Product, QA, and customer-facing teams to resolve real-world enterprise integration issues. Engineering Leadership: Raise the technical bar through thoughtful code reviews, mentoring junior engineers, and making pragmatic architectural decisions. Platform Modernization: Contribute to ongoing architectural cleanups, modernizing services, and driving platform upgrades to ensure long-term system health. What You Bring to the Table C#/.NET Experience: 4+ years of professional experience building enterprise backend systems using C# and .NET. System Design & OOP: Strong fundamentals in Object-Oriented Programming (OOP) and practical experience working with data-heavy, distributed systems. Production Operations Savvy: Demonstrated experience debugging, monitoring, and operating production systems at scale (beyond greenfield development). Tech Stack Proficiency: Comfort working with APIs, complex databases, and distributed backend microservices. Communication Skills: Clear ability to articulate technical trade-offs to both technical peers and non-technical stakeholders. Assets / Bonus Points Experience working with modern .NET versions (.NET 6/8+). Direct ownership or configuration of CI/CD pipelines. Exposure to large-scale data synchronization platforms, CRM integrations, or Revenue Operations systems. Perks & Total Rewards Competitive Salary with Group RRSP / TFSA matching program. 3 Weeks Paid Vacation to start + Paid Wellness Time for mental health and personal needs. Volunteer PTO: Dedicated paid time off to support community charities of your choice. Comprehensive Benefits: Extended health, dental, vision, and life insurance coverage. Growth: Annual professional development allowance for career advancement.

What you’ll do

Build and maintain reliable, well-tested C#/.NET services for a high-volume enterprise platform, addressing scalability, performance, and data consistency challenges. Collaborate with product, QA, and customer-facing teams, while contributing to code reviews, mentoring, architectural decisions, and platform modernization.

Requirements

Requires at least four years of professional experience building enterprise backend systems with C# and .NET, strong object-oriented programming and system design fundamentals, and experience with data-heavy distributed systems. Candidates should have production operations experience and be comfortable with APIs, complex databases, microservices, and communicating technical trade-offs; modern .NET, CI/CD ownership, and CRM or revenue operations exposure are assets.

Benefits

• Group RRSP Matching
• TFSA Matching
• Paid Vacation
• Paid Wellness Time
• Volunteer Paid Time Off
• Extended Health Insurance
• Dental Insurance
• Vision Insurance
• Life Insurance
• Professional Development Allowance

Listed skills

• CI/CD · Preferred
• .NET · Preferred
• C++ · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• C#
• .NET
• Object-Oriented Programming
• Backend Development
• System Design
• Distributed Systems
• Microservices
• API Development
• Database Management
• Performance Optimization
• Data Consistency
• Production Debugging
• Production Monitoring
• Code Reviews
• Mentoring
• CI/CD

Job areas

• Software
• Technology
• Engineering
• Data & Analytics