Senior C#/.NET Developer

About The Role As a Senior .NET Developer, you will make an impact by developing and maintaining high-performing enterprise applications, APIs, and integration solutions that support critical business operations. You will be a valued member of the team and will work collaboratively with product owners, architects, QA teams, and business stakeholders to deliver scalable and reliable software solutions. In This Role, You Will Design, develop, and maintain server-side applications using C# and .NET (Core/Framework) following clean architecture and SOLID principles.Build and maintain RESTful APIs, including versioning, pagination, error handling, documentation, and secure authentication/authorization.Develop middleware and integration components connecting internal services with external systems.Implement and support integration solutions using synchronous and asynchronous communication patterns while ensuring resiliency, logging, tracing, and monitoring.Write unit and integration tests and participate in code reviews to ensure code quality and maintainability.Troubleshoot production issues, perform root cause analysis, and implement performance and reliability improvements.Collaborate with cross-functional teams to refine requirements, estimate work, and deliver functionality within Agile sprint cycles.Maintain technical documentation for APIs, integrations, configurations, and operational procedures. Work Model We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position requiring 3 days per week in a client or Cognizant office in Toronto, Ontario, Canada. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations. What You Need to Have to Be Considered 6+ years of experience developing applications with C# and .NET (Core/Framework).Strong experience in server-side development.Hands-on experience building and maintaining RESTful APIs.Experience developing middleware and integration solutions.Strong understanding of Object-Oriented Programming (OOP), Design Patterns, and SOLID principles.Ability to write clean, efficient, and maintainable code.Strong problem-solving and troubleshooting skills.Ability to work effectively in a collaborative Agile environment.Must be legally authorized to work in Canada without the need for employer sponsorship, now or at any time in the future. These Will Help You Stand Out Experience working with relational databases.Familiarity with MongoDB.Knowledge of Redis. We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role. Total Compensation We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between CAD $61,650 - CAD $102,500 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.