Senior .NET Full Stack Developer

Cognizant; Dover; On-site; USD 97,000 - 114,000; Full time

Benefits offered by this job

Health insurance

Paid time off

401(k) plan

Disability insurance

Parental leave

Employee stock purchase plan

Job summary

Cognizant is seeking a Senior .NET Full Stack Developer to design, develop, and support enterprise healthcare payer applications using Microsoft technologies. You will build secure, scalable solutions and collaborate with cross-functional teams to deliver impactful software.

Remote role with potential in-person interviews as needed; 7+ years of experience; salary $97,000 to $114,000 plus Cognizant incentives based on performance and eligibility.

Qualifications

• 7+ years of experience developing enterprise applications using .NET technologies.
• Strong experience with .NET, ASP.NET Core, ASP.NET MVC, REST APIs, and SQL databases.
• Experience building secure, scalable, and high-performing web applications.
• Knowledge of source control, testing methodologies, and Agile software development practices.
• Strong analytical, problem-solving, and communication skills with the ability to collaborate across teams.

Responsibilities

• Design, develop, and maintain web applications using .NET technologies.
• Build scalable, secure, and maintainable solutions that support healthcare payer operations and business objectives.
• Collaborate with product owners, business analysts, and technical teams to translate requirements into technical solutions.
• Optimize application performance, troubleshoot complex issues, and implement continuous improvements.
• Support application quality through testing, code reviews, documentation, and deployment best practices.

Skills

.NET technologies

REST APIs

SQL databases

Agile software development

Analytical thinking

Cross-team collaboration

Tools

Azure

DevOps practices

Angular

React

TypeScript

Microservices

Docker/Kubernetes

Job description

About the role

We are seeking a Senior . NET Full Stack Developer to design, develop, and support enterprise healthcare payer applications using modern Microsoft technologies. In this role, you will build secure, scalable, and high-performing solutions that enhance operational efficiency, improve user experiences, and support business compliance. You will collaborate with cross-functional teams to deliver innovative applications that drive impact across healthcare payer operations.

In this role, you will:

• Design, develop, and maintain web applications using .NET, ASP.NET Core, ASP.NET MVC, and the .NET Framework.

• Build scalable, secure, and maintainable solutions that support healthcare payer operations and business objectives.

• Collaborate with product owners, business analysts, and technical teams to translate requirements into technical solutions.

• Optimize application performance, troubleshoot complex issues, and implement continuous improvements.

• Support application quality through testing, code reviews, documentation, and deployment best practices.

Work model: Remote

We strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a Remote position.

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:

• 7+ years of experience developing enterprise applications using .NET technologies.

• Strong experience with .NET, ASP.NET Core, ASP.NET MVC, REST APIs, and SQL databases.

• Experience building secure, scalable, and high-performing web applications.

• Knowledge of source control, testing methodologies, and Agile software development practices.

• Strong analytical, problem-solving, and communication skills with the ability to collaborate across teams.

These will help you stand out:

• Experience working within the healthcare payer domain.

• Knowledge of Azure cloud services and modern DevOps practices.

• Experience with Angular, React, TypeScript, or other front-end frameworks.

• Experience with microservices, containerization, or cloud-native architectures.

• Microsoft certifications related to .NET development or Azure technologies.

Important Disclaimers:

**Please note: A few of our roles may require in-person interviews at Cognizant offices or client locations, depending on project or client needs.**

Candidate must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future

Salary and compensation:

The annual salary for this position will be between $97,000 to 114,000 per year depending on the experience and other qualifications of the successful candidate. This position is also eligible for Cognizant’s discretionary annual incentive program and stock awards, based on performance and subject to the terms of Cognizant’s applicable plans.

Applications will be received by September 30th, 2026.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/Short-term Disability.
• Paid Parental Leave.
• Employee Stock Purchase Plan.

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.

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.