Full Stack .NET Developer

Revolutional, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction.

Title:
Full Stack .NET Developer

Location: Washington, D.C. (Onsite)

Terms: Full-time

Clearance:
Active Top Secret with SCI eligibility

Travel: 0%

Portfolio/Business Unit Context

This role supports a Department of State program focused on secure application development and mobile-enabled mission capabilities. The environment is high-security, high-visibility, supporting systems that require reliability, performance, and continuous enhancement. The work directly contributes to mission-critical operations, including secure mobility and data-driven decision support.

Position Description

Harmonia is seeking a Full Stack .NET Developer to design, build, and maintain secure, scalable applications in a classified environment. This role is suited for a developer who is comfortable working across the stack from back-end services and database design to front-end interfaces. This person needs to be able to operate effectively in a structured, security-conscious environment. The developer will be expected to write production-quality code, troubleshoot complex issues across system layers, and contribute to ongoing modernization efforts.

Responsibilities:

• Design, develop, test, and maintain full stack applications using C# and the .NET ecosystem
• Build and enhance back-end services, APIs, and data access layers
• Develop and maintain front-end components using modern web technologies (JavaScript, HTML, CSS)
• Design and optimize SQL Server databases, including stored procedures, functions, and performance tuning
• Troubleshoot and resolve issues across application, database, and infrastructure layers
• Identify and remediate security vulnerabilities in accordance with federal standards
• Support CI/CD pipelines and automated deployment processes
• Participate in Agile development processes, including sprint planning, demos, and retrospectives
• Contribute to secure mobile application support and integration efforts

Required Qualifications:

• Active Top Secret clearance with SCI eligibility (required).
• U.S. Citizenship required.
• 5+ years of professional experience in .NET/C# development
• Security+ certification.
• Strong experience building full stack applications using .NET frameworks (.NET Core, MVC, or similar)
• Proficiency with SQL Server, including T-SQL, stored procedures, and database design
• Experience troubleshooting and debugging across multiple system layers.
• Familiarity with secure development practices in regulated or classified environments.
• Experience working in Agile development teams.

Desired

Qualifications:

• Experience with Azure Dev Ops, TFS, or similar CI/CD and build tools
• Familiarity with cloud platforms such as Azure or AWS
• Experience with version control systems (Git, TFS)
• Knowledge of SharePoint integration or development
• Exposure to secure mobile development or device management environments
• Strong problem-solving and performance tuning capabilities
• Ability to work effectively in a client-facing or mission-driven environment

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Here at Revolutional we are pleased to have been repeatedly recognized for our outstanding work culture, the innovative work we do, and the employees on our team who make a difference each day. Some of these recognitions include:

• Recognized as a Top 20 "Best Place to Work in Virginia"
• Recipient of Department of Labor’s Hire Vets Gold Medallion
• Great Place to Work Certification for five years running
• A Virginia Chamber of Commerce Fantastic 50 company
• A Northern Virginia Technology Council Tech 100 company
• Inc. 5000 list of fastest growing companies for eleven years
• Two-time SBA SBIR Tibbett’s Award winner
• Virginia Values Veterans (V3) Certification

We recognize that every bit of our success is the result of our teams of hard-working, motivated, and innovative professionals who are proud to call themselves part of the Revolutional family! In addition to competitive compensation, a family-focused culture, and a dynamic, productive work environment, we offer all full-time employees a variety of benefits including, but not limited to

• Traditional and HSA- eligible medical insurance plans
• 100% employer-paid dental and vision insurance options
• 100% employer-sponsored STD, LTD, and life insurance
• 5% 401(k) company matching
• Flexible-schedules and teleworking options
• Paid holidays and PTO Accrual Plans
• Paid Parental Leave
• Professional development and career growth opportunities
• Team and company-wide events, recognition, and appreciation- and so much more!

Check out our Revolutional | Linked In to find out a little more about who we are and if we are the right next step for your career!

Revolutional is an Equal Opportunity Employer providing equal employment opportunity to all…