Senior .NET Developer with Security Clearance

Potawatomi Federal Solutions, LLC; Rockville (MD); On-site; USD 95,000 - 100,000; Full time

Benefits offered by this job

Comprehensive benefits package

401(k) with company contributions

Flexible work arrangements

Professional development

Job summary

Command Cyber Solutions, LLC seeks a Senior .NET Developer in Rockville, MD to deliver AI-enabled features for a high-visibility federal mission system. You will design robust enterprise-grade web applications using ASP.NET, C#, SQL, and Angular, applying secure, scalable coding practices.

The role requires an Active Public Trust Clearance and on-site work two days per week. You will leverage AI code assistants and modern .NET (8+) to accelerate development, prototyping, and documentation,

Qualifications

• Bachelor's degree in Technology, Business, or related field.
• 5+ years of ASP.NET/C# back-end development with SQL databases.
• 5+ years of Angular, HTML, CSS, and JavaScript front-end development.

Responsibilities

• Design, develop, unit test, and peer review new features from concept to production release.
• Estimate effort for new functionality and changes.
• Use AI tools to accelerate design, prototyping, code generation, and testing.
• Build web apps with ASP.NET, C#, SQL, and Angular.
• Collaborate with analysts, QA, and federal stakeholders to deliver requirements.
• Apply secure coding practices and participate in code reviews.
• Keep up with AI-assisted development and delivery improvements.

Skills

AI solutioning

ASP.NET/C#

JavaScript/TypeScript

Angular

RESTful APIs

Secure coding

Azure cloud

Team collaboration

Git tooling

Education

Bachelor's degree in a technical field

Tools

Git

CI/CD

Azure App Services

Azure Functions

Key Vault

Databricks

ASP.NET Core

SQL

Job description

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 - $100,000.00 Position Summary: 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.

Essential Duties & Responsibilities:

• 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.
• Education: Bachelor's degree Technology, Business, or Related Field Experience: 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.
• Knowledge: 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., GitHub Copilot, Claude, TabNine) 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.
• Skills: 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, TypeScript, Node.js, EF, LINQ, Bootstrap, Webpack.
• Abilities: Ability to pass multiple background and employment checks - federal and local.
• Why Join Command Cyber Solutions: 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 careers, CCS offers opportunities to contribute to high-impact federal initiatives, supported by robust professional development programs, competitive compensation, comprehensive benefits, and flexible work arrangements. We prioritize investing in our workforce, ensuring each team member has the resources, support, and career pathways to achieve long-term success while delivering meaningful results for our clients.
• Culture: At CCS, you'll be a part of a team that genuinely supports one another and where leadership is invested in the well-being and success of every employee. We foster a work culture where people are valued for who they are, not just what they do, and where your career goals are taken seriously. You'll be encouraged to grow through mentorship, hands-on experience, and access to continued learning opportunities that align with your aspirations. Whether you're looking to deepen your expertise, earn new certifications, or take on leadership roles, CCS provides the environment and support to help you get there. Leadership is approachable, collaboration is natural, and success is shared. At CCS, you're not just joining a company; you're joining a community committed to your growth and success.
• Benefits: We offer a comprehensive benefits package designed to support the health, financial security, and overall well-being of our employees and their families. Our offerings include medical and prescription drug plans, dental coverage, group life insurance, and options for supplemental life insurance to provide additional protection. We also provide short-term and long-term disability insurance, flexible spending accounts, and employee assistance programs to help employees manage personal and professional needs. Our package also includes identity theft protection and a competitive 401(k) retirement savings plan with company contributions, giving employees valuable resources to protect their future and achieve long-term financial goals.
• EEO Statement: Command Cyber Solutions, LLC is an equal opportunity employer. Command Cyber solutions, LLC does not discriminate in employment opportunities or practices on the basis of race, color, religion, sex, national origin, age, disability, marital status or any other characteristic protected by law. #ClearanceJobs