Senior C#/.NET DeveloperCognizant’s Digital Engineering practice is seeking a highly qualified Senior C#/.NET Developer with at least 6+ years experience developing and building high-performing, scalable, enterprise applications. You will be part of a digital software team that works on high-demand applications. Our engineers have a passion for high-quality, reliable, and maintainable code. You will work side by side with product managers, designers, and clients, making decisions together to quickly deliver valuable working software to clients and their users. Our engineers are agile and retrospective, and not afraid to identify what we’re doing wrong, so we can fix it, and what we’re doing right, so we can improve on it. Above all, we judge success by the success of our team and the happiness of our customers.LocationToronto, ON, CANADA (Onsite)You must be legally authorized to work in Canada without the need for employer sponsorship, now or at any time in the future.Roles & Responsibilities- Design, develop, and maintain server-side components using C# and .NET (Core/Framework) following clean architecture and SOLID principles.- Build and maintain RESTful APIs (design, versioning, pagination, error handling, and documentation) and ensure secure authentication/authorization.- Develop middleware and integration components to connect internal services with external systems (message formats, adapters, routing, transformation, and orchestration).- Implement and consume integrations using common patterns (sync/async), ensuring resiliency (timeouts, retries, circuit breakers) and observability (logging,



tracing, metrics).- Write unit/integration tests and support automated CI/CD pipelines; ensure code quality through reviews and static analysis.- Troubleshoot production issues, perform root-cause analysis, and deliver performance/reliability improvements.- Collaborate with product owners, architects, and QA to refine requirements, estimate work, and deliver features within sprint timelines.- Produce and maintain technical documentation for APIs, integrations, configuration, and runbooks.Required QualificationsMust-Have Skills- Robust experience in C# and .NET development- Proven expertise in server-side development- Hands‑on experience with RESTful APIs- Experience in middleware integration- Solid understanding of Design Patterns, SOLID principles, and Object‑Oriented Programming (OOP)- Ability to write clean, efficient, and maintainable codeNice-to-Have Skills- Experience with relational databases- Familiarity with MongoDB- Knowledge of RedisCanadian Pay Transparency StatementWe regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between $61,650 – $96,500 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business-related and job-necessary qualifications. This position is also eligible for Cognizant’s discretionary annual performance-based bonus, as well as benefits that support your physical, mental and financial wellbeing.#J-18808-Ljbffr

📌 Senior C/.Net Developer - C$61,650 - C$96,500 A Year (Toronto)
🏢 Cognizant
📍 Toronto