Technology and Engineering | Full-time Senior Associate .NET Developer Arlington, Virginia, United States

Publicis Sapient; Arlington, Northern (VA, KY); Hybrid; USD 115,000 - 165,000; Full time

Benefits offered by this job

Health benefits

Generous paid leave

Learning & development opportunities

Flexible work options

Job summary

Publicis Sapient is seeking a .NET senior developer to partner with federal health clients, balancing hands-on maintenance with building new capabilities to support NIH initiatives. You will read and modify legacy code while contributing to modern architectures and scalable services.

Candidate should bring 4–7+ years in .NET full-stack development, strong C#/NET Core/EF experience, and solid SQL Server skills.

Qualifications

• 4–7+ years experience in .NET full stack development.
• Strong knowledge of C#, .NET Core, .NET Framework, and EF (Code-First and stored-procedure hybrid).
• Experience with SQL Server, stored procedures, and cross-environment deployments.
• Comfort in a layered architecture and CI/CD pipelines (GitHub Actions or equivalent).
• Experience reading and modifying unfamiliar code; ongoing operations/maintenance included.

Responsibilities

• Maintain mission-critical systems and contribute to enhancements.
• Design and build new capabilities that support federal health initiatives.
• Collaborate with developers, QA, and DBA to ensure quality and delivery.

Skills

NET / C#

SQL Server

CI/CD

REST APIs

Agile/Scrum

Unit testing

Accessibility (Section 508)

Debugging / troubleshooting

Independence & collaboration

Government clearance (Public Trust)

Tools

GitHub Actions

Azure DevOps

Sitecore

SeriLog

Power Apps / Power Automate

SyncFusion

Job description

Job ID: 2026-175185 | 1515 North Courthouse Road Arlington Virginia 22201 United States | Full-time

Publicis Sapient is looking for a .NET senior developer to partner with federal health clients undertaking major digital engagement initiatives. You ll balance hands-on maintenance of mission-critical systems with opportunities to design and build new capabilities that further the mission of a large NIH institute. We are on a mission to transform the world, and you will be instrumental in shaping how we do it with your ideas, thoughts, and solutions.

Your Skills and Experience:

• 4-7+ years experience in .NET full stack development
• Strong knowledge of the .NET ecosystem, including C#, .NET Core, .NET Framework, and Entity Framework (Code-First and stored-procedure hybrid patterns)
• Experience with SQL Server: writing and maintaining stored procedures, understanding query performance, and working across dev/QA/stage/prod environments
• Comfort operating within a layered architecture
• Experience with Git-based version control and CI/CD pipelines (GitHub Actions or equivalent)
• Demonstrated ability to read, diagnose, and safely modify unfamiliar or partially documented code; this role includes significant ongoing operations and maintenance work, not just new development
• Strong troubleshooting and root-cause analysis skills across the full stack, including the ability to triage ambiguous, cross-cutting issues
• Experience in writing automated unit tests
• Ability to build technical remediations for Section 508/accessibility issues
• Ability to work independently on assigned tasks while also collaborating closely with other developers, QA, and DBA when necessary
• NET / MVC and Object-oriented design
• Experience developing, consuming, and troubleshooting RESTful APIs using C#/.NET
• Experience with Agile/Scrum development methodologies
• Eligible for U.S. Government Clearance public trust

Set Yourself Apart:

• Experience with Active Directory group-based access control and authentication/authorization patterns
• Experience maintaining and troubleshooting Sitecore-based .NET applications hosted in Azure, including supporting existing applications through decommissioning or transition
• Experience with GitHub Actions, Azure DevOps, or similar CI/CD platforms
• Exposure to Power Apps, Power Automate, or SharePoint Online
• Experience integrating Azure OpenAI into a .NET or similar web application (genuinely a plus rather than a core expectation)
• Experience with SyncFusion or similar reporting/export component libraries
• Experience with SeriLog or structured application logging and error-tracking practices
• Familiarity with CQRS, Repository, and Dependency Injection patterns
• Experience contributing to legacy modernization or decommissioning efforts
• Experience contributing to test automation strategy or execution
• Familiarity with accessibility design philosophy and best practices for federal web applications
• Prior experience in a federal/government contracting environment, especially NIH or HHS
• Experience working in Jira or similar project management platform

Additional Information

• An inclusive workplace that promotes diversity and collaboration.
• Access to ongoing learning and development opportunities.
• Competitive compensation and benefits package.
• Flexibility to support work-life balance.
• Comprehensive health benefits for you and your family.
• Generous paid leave and holidays.
• Wellness program and employee assistance.

Pay Range: $115,000-$165,000

The range shown represents a grouping of relevant ranges currently in use at Publicis Sapient. Actual range for this position may differ, depending on location and specific skillset required for the work.

As part of our dedication to an inclusive and diverse workforce, Publicis Sapient is committed to Equal Employment Opportunity without regard for race, color, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at [e-mail]

Company Description

Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients’ businesses through designing the products and services their customers truly value.