Senior .NET Developer; Public Trust

Position Title:

Senior .NET Developer

Location:

Rockville, MD (On-site 2 days per week requirement)

Clearance:
*** Active Public Trust Clearance Required***

Salary: $95,000.00 - $

CCS is hiring a highly qualified Senior .NET Developer specializing in AI-enabled Mission Feature Delivery to drive new feature development for a high-visibility federal mission system. This is a build-forward role focused on delivering new capabilities that advance our client’s core mission. You will design and ship robust new functionality on a mature enterprise platform, and you will use AI tools fluently to accelerate how you solution, prototype, and deliver.

We are looking for engineers who can apply AI as a force multiplier in their own work.

• Design, develop, unit test, and peer review new features that expand the platform’s mission capabilities, from concept through production release.
• Define the technical approach and accurately estimate effort for new functionality, enhancements, and change requests.
• Use AI tools to solution faster — accelerating design exploration, prototyping, code generation, test scaffolding, documentation, and troubleshooting. (You will use AI; you will not be building AI/ML models.)
• Build scalable, secure web applications using ASP.NET, C#, SQL, and Angular.
• Partner with Business Analysts and QA to fully understand requirements and deliver against them.
• Collaborate with the development team and federal technical stakeholders to plan and execute feature delivery.
• Participate in code reviews and apply secure, defensive coding practices throughout.
• Stay current on tools and techniques — including AI-assisted development — that improve delivery speed and quality.

• Bachelor’s degree Technology, Business, or Related Field

• 5+ years of professional ASP.NET / C# back-end development with SQL databases.
• 5+ years of professional Angular, HTML, CSS, and JavaScript front-end development.
• Experience with .NET Core / modern .NET (8+).
• Proven track record delivering new functionality in complex, workflow-driven enterprise systems.

• AI Solutioning Skills (Required)
• We expect you to work AI-fluently. The following are about using AI to deliver better and faster — not about engineering AI systems:
• Hands-on use of AI code assistants (e.g., Git Hub Copilot, Claude, Tab Nine) in day-to-day development.
• Ability to apply AI tools effectively across the delivery lifecycle — design, prototyping, code, testing, and documentation.
• Sound judgment about where AI accelerates work and where human review and secure-coding discipline must govern the output.

• Experience delivering on federal programs and working with government technical stakeholders.
• Familiarity with Azure (App Services, Functions, Key Vault) and cloud-native delivery.
• Familiarity with Databricks
• Experience designing and building AI agents – systems that use LLMs to plan, make decisions, call tools, and complete multi-step tasks with minimal human intervention
• Strong grounding in OOP, SOLID, RESTful APIs, microservices, Git, and CI/CD.
• Secure coding fluency: input validation (SQL injection, XSS), RBAC, MFA, OAuth/JWT, logging, and error handling.
• Azure certifications (e.g., AI-102, Azure Architect) are a plus.
• Proficiency across the stack: T-SQL, Type Script, Node.js, EF, LINQ, Bootstrap, Webpack.

• Ability to pass multiple background and employment checks - federal and local.

We recognize that our success begins with our people. We are dedicated to fostering a professional, collaborative, and growth-oriented environment where employees are empowered to excel and advance their…