
Senior Full-Stack Developer (.NET/Drupal)
LightFeather is seeking a Senior Full-Stack Developer who will lead the development, maintenance, and enhancement of critical web applications and APIs for a federal agency's national registry operations. This role requires expertise in .NET development, Drupal CMS, and API integration, as well as the ability to ensure Section 508 compliance and support mission-critical government web services.
This role provides the opportunity to work on high-impact web applications and APIs that serve the federal financial sector, ensuring secure, accessible, and scalable application solutions.
- Location: Remote with preference for Silver Spring, MD area candidates
- Job Type: Full Time
- Citizenship: U.S. Citizenship Required
- Clearance Requirement: Public Trust or higher preferred
Key Responsibilities
- Develop and maintain .NET applications using C# and .NET Framework 4.8 for registry and financial operations.
- Maintain and upgrade Drupal CMS, including potential re-platforming to Drupal 12.1.
- Maintain and enhance SOAP and REST APIs supporting state agency integrations and public registry access.
- Ensure Section 508 compliance across all web applications and implement accessibility best practices.
- Implement and maintain Login.gov integration with existing SQL authentication systems.
- Design and develop custom software solutions for registry data processing and financial tracking operations.
- Create and maintain API documentation, technical specifications, and development project plans.
- Apply secure coding practices and coordinate application security reviews with federal partners.
- Monitor and optimize application performance, troubleshoot issues, and implement enhancements.
Required Qualifications
- U.S. Citizenship required.
- Public Trust clearance or ability to obtain.
- Minimum 5+ years of experience in full-stack development with strong focus on .NET and web technologies.
- Expert-level proficiency in C#, .NET Framework 4.8, PHP, JavaScript, and SQL.
- Strong experience with Drupal CMS, IIS configuration, HTML5, CSS3, and responsive web design.
- Proven experience with SOAP and REST API development, documentation, and integration.
- Understanding of Section 508 accessibility standards and federal web compliance requirements.
Preferred Skills
- Experience working with federal agencies or government web application projects.
- Knowledge of AWS services, Redis, and cloud-based application deployment.
- Familiarity with Python scripting and automation tools.
- Experience with MS Access integration and macro development.
Why Join LightFeather?
At LightFeather, you're not just taking a job—you're joining a purpose-driven team that delivers innovative, mission-critical solutions to make a real difference. You'll work on diverse, meaningful projects that challenge and inspire you, alongside some of the best minds in the industry.
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