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Senior .NET Full Stack Engineer with C#
Cognizant
Dover, DE
- $86,000 to $99,000 USD / year
As a Senior .NET Full Stack Engineer with C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added just now
C
Senior Full Stack Engineer – .NET & C#
Cognizant
Dover, DE
- $86,000 to $99,000 USD / year
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…
Added 1 min ago
C
Senior Support Engineer I
Cleo
Dover, DE
- $70,000 to $80,000 USD / year
…opportunities to use automation and AI to improve efficiency, reliability, and the customer…
Added 1 min ago
Senior Workday Security Engineer
CVS Health
Dover, DE
CVS Health is seeking an experienced Senior Workday Security Engineer to join the HR Technology Workday Security team. This role designs, supports, governs, and optimizes security across…
Added 1 min ago
MB
Senior Technical Engineer - Microsoft Fabric & Power BI Administration
M&T Bank
Wilmington, DE
- $106,700 to $177,900 USD / year
…gateways, security, monitoring, and platform integrations. The engineer delivers secure, scalable, highly available analytics services while partnering with infrastructure, networking,…
Added 2 mins ago
FA
Senior Data Engineer, Back End Systems (Remote)
First American
Home, SC · Home, FL · Home, GA · Home, TX
- $121,980 to $130,525 USD / year
The Senior Data Engineer designs, builds, and supports the back-end systems that move and process ServiceMac’s operational data. This hands-on role develops SQL database solutions,…
Added 2 mins ago
Senior Test Automation Engineer - Local to Pittsburgh, PA
CGI
Pittsburgh, PA
We are seeking an experienced Senior Test Automation Engineer with 8+ years of experience in software quality engineering, test automation, and enterprise application testing. The ideal…
Added 12 mins ago
Senior Data Engineer - MongoDB and PostgreSQL
CVS Health
Remote, United States
Senior Data Engineer will design, build, and support a near real-time transactional cache platform that enables APIs, digital experiences, and downstream services to consume operational…
Added 14 mins ago
Senior Product Manager
Acxiom
Lansing, MI
The Senior Product Manager for Clean Rooms and Data Delivery Platforms is responsible for defining and executing Acxiom’s strategy for client and partner based clean-room implementations…
Added 14 mins ago
C
Senior .NET Full Stack Engineer with C#
Cognizant
Lansing, MI
- $86,000 to $99,000 USD / year
As a Senior .NET Full Stack Engineer with C#, you will make an impact by designing and developing scalable enterprise applications that support healthcare payer operations, including…
Added 14 mins ago
C
Senior Full Stack Engineer – .NET & C#
Cognizant
Lansing, MI
- $86,000 to $99,000 USD / year
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…
Added 14 mins ago
C
Senior Support Engineer I
Cleo
Jackson, MI · Lansing, MI
- $70,000 to $80,000 USD / year
…opportunities to use automation and AI to improve efficiency, reliability, and the customer…
Added 14 mins ago
Senior Workday Security Engineer
CVS Health
Lansing, MI
CVS Health is seeking an experienced Senior Workday Security Engineer to join the HR Technology Workday Security team. This role designs, supports, governs, and optimizes security across…
Added 17 mins ago
Senior Infrastructure Engineer
Mach Industries
Huntington Beach, CA
Design and deliver new infrastructure for services, environments, and sites, balancing reliability, security, capacity, and cost.
Added 41 mins ago
Senior Identity Engineer
Ignite IT
Remote, United States
Ignite IT is seeking an experienced Senior Identity and Access Management (IAM) Engineer to support enterprise identity and directory services for the U.S. Census Bureau.
Added 41 mins ago
Full Stack Developer (Python / Java / Angular / AWS)
Ignite IT
Remote, United States
Ignite IT is seeking a Senior Full Stack Developer to support the U.S. Customs and Border Protection (CBP) in developing and modernizing enterprise applications that improve operational…
Added 48 mins ago
Senior Software Development Engineer , Stores Foundational AI - Rufus
Amazon.com Services LLC
Seattle, WA · Palo Alto, CA
- 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
Added 1 hour ago
Senior Embedded Linux BSP Engineer – Qualcomm QCS / Camera & Multimedia
Jobgether
Remote, United States
As a Senior Embedded Linux BSP Engineer, you will lead key software development and hardware integration activities, ensuring platform stability, performance, and reliability. Your…
Added 1 hour ago
IE
Senior Software Developer - Forward Deployed Model
Idea Entity
Remote, United States
- $110,000 to $170,000 USD / year
We are looking for an experienced Senior Software Developer to design, build, test, deploy, and support scalable software solutions that solve complex customer problems.
Added 1 hour ago
Data Engineer I
Midwest Physicians Administrative Services, LLC dba Duly Health and Care
Downers Grove, IL
The Data Engineer I is an early-career role within the Data & Analytics team, responsible for helping build, operate, and improve the data pipelines that feed analytics, reporting, and AI…
Added 1 hour ago
Software Engineer, Experienced Associate
PwC
Indianapolis, IN
As a Software Engineer, Experienced Associate you will contribute to the design, build, modernization, and scaling of custom applications across the software development lifecycle within…
Added 1 hour ago
Senior Software Engineer, Atlas Agent Engine
Jobgether
Remote, United States
…all applications and next steps. Our partner is looking for a Senior Software Engineer, Atlas Agent Engine based in the United…
Added 1 hour ago
J
Senior Data Engineer, Ads Data (AI Native)
Jobgether
Remote, United States
- $129,000 to $192,000 USD / year
…protected through innovative digital products and services. As a Senior Data Engineer, you will take ownership of critical data infrastructure supporting advertising analytics, campaign…
Added 1 hour ago
Vice President, Facilities Management
Navy Federal Credit Union
Vienna, VA
Establish performance metrics, reporting practices, policies, procedures, and service standards to improve reliability, efficiency, compliance, customer service, risk management, and…
Added 1 hour ago
Principal IAM Engineer / Onsite in Natick, MA
Kelly Services
Natick, MA
A leading mathematical computing software organization is hiring a Principal IAM / Active Directory Engineer to join its Identity and Access Management team. This is a full-time opportunity…

Closed listing

Cognizant

Senior .NET Full Stack Engineer with C#

Concord, NH, United States

$86,000 to $99,000 USD / year

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: $86,000 to $99,000 USD / year
Experience: 7+ years of software development experience , including strong hands-on experience with Java/J2EE and Spring Boot .
Posting language: English
Posted: Nov 8, 2026

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Original job description

Archived listing. The details below describe a past opening.

About the role

As a Senior .NET Full Stack Engineer with 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.

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.

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.

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