Cognizant

Senior .NET Developer

Cognizant$80K — $91K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Over 6 years of hands-on experience in C# and .NET development.
  • Proficient in server-side development and RESTful API design.
  • Experience with middleware integration and connecting services with external systems.
  • Strong understanding of SOLID principles and clean architecture.
  • Familiarity with relational databases, MongoDB, and Redis is a plus.

Responsibilities

  • Design, develop, and maintain server-side components with C# and .NET.
  • Build and maintain secure, RESTful APIs including versioning and documentation.
  • Develop middleware and integration to connect internal and external services.
  • Implement integrations ensuring resiliency and observability.
  • Write unit and integration tests while supporting CI/CD pipelines.
  • Troubleshoot production issues and improve system performance.
  • Collaborate with teams to refine requirements and deliver features in sprints.

Benefits

  • Comprehensive medical, dental, and vision insurance.
  • Paid holidays and Paid Time Off for work-life balance.
  • Short-term and long-term disability coverage.
  • Paid parental leave for new parents.
Full Job Description
Location: Toronto, ON
Experience Required: 6+ years

You must be legally authorized to work in Canada without the need for employer sponsorship, now or at any time in the future.
Cognizant will not sponsor work authorization for this role.

Role: Senior C#/.NET Developer - 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 Qualifications
• Candidates should have over 6+ years of hands on experience in below skills
• MUST Have skills - C# Developer: C#, .net experience, Server side development, REST APIs, Middleware integration,
• Nice To have Skills- Relational databases, MongoDB, Redis

Salary and Other Compensation:

Applications will be accepted until April 27, 2026.

The annual salary for this position is between CAD 80,000- CAD 91,000 base depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.

Benefits
• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• Long-term/Short-term Disability
• Paid Parental Leave

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Travel: 0-5%
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About Cognizant

TriZetto is Powering Integrated Healthcare Management. With technology solutions touching more than half the U.S. population today, TriZetto is uniquely positioned to drive the convergence of core benefit administration, care management and constituent engagement. TriZetto provides premier information technology solutions that enable payers and other constituents in the healthcare supply chain to improve the coordination of benefits and care for healthcare consumers.

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Learn more about Cognizant
Size
340,400 employees
Market Cap
$28.7 billion
Industry
Net Income
$1.3 billion
Founded
1994
5 Year Trend
+6.5%
Revenue
$16.6 billion
NASDAQ

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