We are looking for a Senior Backend Developer to join a growing engineering team focused exclusively on building a new, enterprise-grade product. This is a product-only role (no client delivery or consulting work), where you’ll play a key part in translating architectural vision into robust, production-ready backend services. If you have the below requirements, please apply today! What You’ll Do<ul><li>Implement backend services under architectural guidance, contributing to foundational platform components</li><li>Build scalable, cloud-native services following established patterns, standards, and best practices</li><li>Develop calculation-heavy, deterministic business logic with a strong emphasis on correctness and repeatability</li><li>Design and optimize data pipelines and processing workflows</li><li>Maintain a high bar for code quality, testing, performance, and reliability</li><li>Collaborate closely with the Principal Architect on technical design decisions and implementation strategies</li><li>Write and maintain comprehensive unit and integration tests to support auditability and long-term maintainability</li></ul> Key Challenges You’ll Tackle<ul><li>Developing financial-grade, audit-sensitive systems</li><li>Handling complex data processing and transformation pipelines</li><li>Building performance-critical, deterministic logic</li><li>Creating foundational backend services that scale to enterprise-level customers</li></ul> Required Skills & ExperienceBackend Development<ul><li>3–8+ years of experience in backend software development</li><li>Strong proficiency in .NET / C# (required)</li><li>Experience with strongly-typed, compiled languages</li></ul>Frameworks & APIs<ul><li>ASP.NET Core</li><li>Entity Framework Core</li><li>Background workers and async processing pipelines</li><li>RESTful API design and implementation</li></ul>Databases<ul><li>Strong experience with relational databases such as SQL Server / Azure SQL or PostgreSQL</li><li>Solid understanding of query optimization, indexing, and performance tuning</li></ul>Cloud & Engineering Practices<ul><li>Cloud-native development experience (Azure strongly preferred)</li><li>Experience building and supporting data pipelines</li><li>Strong testing discipline (unit, integration)</li><li>Performance profiling and optimization experience</li></ul>Nice to Have<ul><li>Message queues and asynchronous messaging</li><li>Docker and containerized workloads</li><li>CI/CD pipelines</li><li>Event-driven architectures</li></ul> *This job posting is for a current vacancy with our client.*Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.

*backend*.net*C#*microservices*testing*azure*SQL*asp.net*API

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Mississauga, ON
remote
Temporary
45.00 - 65.00 CAD / Hourly
We are looking for a Senior Backend Developer to join a growing engineering team focused exclusively on building a new, enterprise-grade product. This is a product-only role (no client delivery or consulting work), where you’ll play a key part in translating architectural vision into robust, production-ready backend services. If you have the below requirements, please apply today! What You’ll Do<ul><li>Implement backend services under architectural guidance, contributing to foundational platform components</li><li>Build scalable, cloud-native services following established patterns, standards, and best practices</li><li>Develop calculation-heavy, deterministic business logic with a strong emphasis on correctness and repeatability</li><li>Design and optimize data pipelines and processing workflows</li><li>Maintain a high bar for code quality, testing, performance, and reliability</li><li>Collaborate closely with the Principal Architect on technical design decisions and implementation strategies</li><li>Write and maintain comprehensive unit and integration tests to support auditability and long-term maintainability</li></ul> Key Challenges You’ll Tackle<ul><li>Developing financial-grade, audit-sensitive systems</li><li>Handling complex data processing and transformation pipelines</li><li>Building performance-critical, deterministic logic</li><li>Creating foundational backend services that scale to enterprise-level customers</li></ul> Required Skills & ExperienceBackend Development<ul><li>3–8+ years of experience in backend software development</li><li>Strong proficiency in .NET / C# (required)</li><li>Experience with strongly-typed, compiled languages</li></ul>Frameworks & APIs<ul><li>ASP.NET Core</li><li>Entity Framework Core</li><li>Background workers and async processing pipelines</li><li>RESTful API design and implementation</li></ul>Databases<ul><li>Strong experience with relational databases such as SQL Server / Azure SQL or PostgreSQL</li><li>Solid understanding of query optimization, indexing, and performance tuning</li></ul>Cloud & Engineering Practices<ul><li>Cloud-native development experience (Azure strongly preferred)</li><li>Experience building and supporting data pipelines</li><li>Strong testing discipline (unit, integration)</li><li>Performance profiling and optimization experience</li></ul>Nice to Have<ul><li>Message queues and asynchronous messaging</li><li>Docker and containerized workloads</li><li>CI/CD pipelines</li><li>Event-driven architectures</li></ul> *This job posting is for a current vacancy with our client.*Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.
2026-01-16T19:28:57Z