.Net Developer (Senior)

*We are open to supporting 100% remote work anywhere within the United States. Must be able to support Eastern Time Zone*

The Digital Modernization Division at ICF is a rapidly growing, technology-driven team delivering strategic IT and consulting solutions to public and private sector clients. We are seeking a Senior .NET Developer to support the Department of Defense (DoD) Child and Youth Programs (CYP), a mission-critical initiative providing military and DoD-affiliated families with access to affordable, high-quality childcare, which directly supports force readiness, morale, and retention.

In this role, you will contribute to the modernization and integration of legacy CYP systems through custom, modular web application development. Our team collaborates closely with government stakeholders and contractors to deliver secure, high-performance, public-facing applications. This position offers the opportunity to support meaningful outcomes for military families while applying cutting-edge development practices in a dynamic, agile environment.

What you’ll be doing:

Manage and support daily development work for one or more project teams by:

• Designing, developing, and maintaining RESTful APIs using .NET 8 and C#.
• Implementing clean, maintainable, and scalable code following Clean Code Architecture principles.
• Creating and maintaining data access layers using Entity Framework and LINQ.
• Writing unit and integration tests using xUnit to ensure application quality.
• Developing and optimizing SQL Server queries, stored procedures, and schema changes.
• Supporting dynamic document generation and reporting features.
• Using GitHub for version control, branching, and pull requests.
• Collaborating with QA, DevOps, and Product teams during sprint planning, backlog grooming, and code reviews.
• Participating in root-cause analysis, bug fixes, and performance improvements.
• Following Agile development practices and contributing to sprint deliverables.

What you must have:

• 5+ years of professional experience with .NET (preferably .NET 6/7/8) and C# development.
• 3+ years of experience developing and maintaining REST APIs.
• 3+ years of experience with SQL Server, including stored procedures and query optimization.
• 3+ years hands-on experience with Entity Framework Core and LINQ.
• 3+ years of experience writing and maintaining automated tests with xUnit or similar frameworks.
• 3+ years of experience using GitHub or similar tools for version control and collaboration.
• Ability to obtain and maintain Public Trust.
• MUST RESIDE in the United States (U.S.), and the work MUST BE PERFORMED in the United States (U.S.), as this work is for a federal contract and laws do apply.
• US Citizen or Permanent Lawful Resident (Green Card Holder) due to federal contract requirements.

What we would like you to have:

• Bachelor’s degree in Computer Science, Information Systems, Engineering, or related technical field.
• Knowledge of Clean Code Architecture and SOLID principles.
• Experience with dynamic document generation (e.g., PDF or Word automation).
• Familiarity with Agile/Scrum environments.
• Excellent problem-solving, debugging, and time-management skills.
• Excellent attention to detail and ability to deliver high-quality code.
• Ability to work independently as well as part of a cross-functional team.

Working at ICF

ICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.

We will consider for employment qualified applicants with arrest and conviction records.

 

Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with