Senior Full Stack Engineer – .NET & C#

Cognizant Technology Solutions Corporation; Nashville (TN); Remote; USD 86,000 - 99,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

401(k) plan

Stock Purchase Plan

Job summary

Cognizant Technology Solutions Corporation is hiring a Senior Full Stack Engineer specializing in .NET/C# and Java tech to design and build scalable enterprise applications for healthcare payer operations. You will work with architects, product owners, business analysts, QA, and other tech stakeholders to deliver secure, reliable, and high-performing solutions.

The role emphasizes API/microservices development, Azure integration, and cross-functional collaboration to improve operational

Qualifications

• Bachelor's degree in computer science or related field.
• 7+ years of software development experience with Java/J2EE and Spring Boot.
• Advanced proficiency in .NET Framework and C# with scalable enterprise apps.
• Hands-on API/middleware development using Node.js, REST APIs, and microservices.
• Front-end experience with React and Angular for enterprise web apps.
• Experience designing and supporting microservices deployment and CI/CD.

Responsibilities

• Design, develop, and maintain scalable enterprise applications across Java, .NET, and JavaScript.
• Develop secure microservices and REST APIs for integration across internal and external platforms.
• Build intuitive UIs to improve operator workflows and data accuracy.
• Integrate applications with Microsoft Azure services for hosting, storage, identity, monitoring, and performance.
• Collaborate with cross-functional teams to translate payer requirements into technical designs.
• Conduct code reviews, unit and integration testing across stack to ensure quality.
• Troubleshoot production issues across front-end, back-end, API, cloud, and database layers.
• Document designs, data flows, and integration patterns for long-term maintainability.

Skills

Java/J2EE

Spring Boot

C#

Node.js

REST APIs

React

Angular

Microservices

Education

Bachelor's degree in computer science, IT, engineering, or related field

Tools

Azure

CI/CD

Job description

About the role

As a Senior Full Stack Engineer – .NET & C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including eligibility, benefits, claims adjudication, billing, and provider services.

You will be a valued member of the application development team and work collaboratively with architects, product owners, business analysts, quality engineers, and other technology stakeholders to deliver secure, reliable, and high-performing solutions.

In this role, you will

Design, develop, and maintain scalable enterprise applications using Java, Spring Boot, .NET Framework, C#, Node.js, React, and Angular to support healthcare payer workflows and claims processing.

Develop secure, reusable microservices and REST APIs that enable seamless integration among internal applications, provider networks, third-party vendors, and external healthcare platforms.

Build intuitive and responsive user interfaces that simplify workflows for operations teams, providers, and members while improving data accuracy and user experience.

Integrate applications with Microsoft Azure services for application hosting, data storage, identity management, monitoring, observability, and performance optimization.

Collaborate with cross-functional product and business teams to translate healthcare payer requirements into technical designs that improve operational efficiency, regulatory compliance, and system reliability.

Conduct code reviews, unit testing, and integration testing across Java, .NET, and JavaScript codebases to reduce defects and support stable production releases.

Troubleshoot complex production issues across front-end, back-end, API, and database layers while improving application performance, availability, and response times.

Document technical designs, application data flows, integration patterns, and healthcare payer business rules to support knowledge sharing and long‑term maintainability.

Work model

We strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a Remote position open to qualified applicants in the United States. 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

Bachelor’s degree in computer science, Information Technology, Engineering, or a related field.

7+ years of software development experience, including strong hands‑on experience with Java/J2EE and Spring Boot.

Advanced proficiency in .NET Framework and C#, with experience developing scalable and maintainable enterprise applications.

Hands‑on experience developing APIs, event‑driven services, and middleware components using Node.js, REST APIs, and microservices architecture.

Strong front‑end development experience using React and Angular to build responsive enterprise web applications.

Experience designing, implementing, and supporting microservices‑based applications, including modular deployment, fault isolation, integration, and continuous delivery.

Working knowledge of Microsoft Azure, including application deployment, monitoring, identity management, containerization, scalability, and observability.

Understanding of healthcare payer processes such as eligibility, benefits, claims adjudication, billing, member services, and provider contracting.

Strong analytical, problem‑solving, and communication skills, with the ability to collaborate effectively with architects, business analysts, product teams, and quality engineers.

These will help you stand out

Experience developing high‑volume applications that process healthcare claims, eligibility, benefits, or member data.

Knowledge of healthcare data security, privacy, authentication, authorization, logging, and regulatory compliance requirements.

Experience in implementing containerized applications and continuous integration and continuous delivery practices in Microsoft Azure.

Ability to troubleshoot complex production issues across front‑end, back‑end, API, cloud, and database layers.

Experience documenting healthcare payer business rules, technical designs, integration patterns, and application data flows.

Salary and Other Compensation

The annual salary for this position is between $86,000 to $99,000 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
• 401(k) plan and contributions
• Long‑term/Short‑term Disability
• Paid Parental Leave
• Employee Stock Purchase Plan

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.