Job description Location: Remote (U.S. – Washington, DC Metro Area preferred) Part-Time (960 hours over contract period) Clearance: Eligibility to obtain a U.S. Government security clearance (U.S. Citizenship required) Job Description: Viderity is seeking a skilled Frontend/Backend Developer to build and support a secure, user-friendly federal web portal (e.g., the Applicant Portal). This full-time role involves developing both client-facing interfaces and backend infrastructure, ensuring a seamless experience for users across the system. This role is aligned with the Senior Software Engineer I category under the Mathematica GSA MAS Labor Categories , which includes responsibilities such as software design, coding, debugging, and leading smaller development teams. Key Responsibilities: Frontend:

• Build and maintain responsive, accessible web portals (508 compliant).
• Implement clean and intuitive UI/UX using modern frameworks.
• Develop role-based access control (RBAC) for multi-user environments.
• Participate in UI/UX reviews and peer code reviews.

Backend:

• Design and maintain RESTful APIs and integration workflows.
• Manage metadata ingestion pipelines, user authentication, and logic layers.
• Implement database interactions and secure data transactions.
• Maintain continuous deployment/integration pipelines.

Job requirements Minimum Qualifications:

• Bachelor’s degree in Computer Science or related field.
• 5 years of relevant software development experience.
• Equivalent substitutions accepted per GSA guidelines.

Preferred Skills:

• React, Angular, or Vue for frontend development.
• Node.js, Python, or Java for backend APIs.
• Experience with PostgreSQL, Oracle, or similar RDBMS.
• Familiarity with CI/CD tools, Docker, and cloud platforms (AWS/Azure).
• Strong understanding of security, compliance (e.g., FedRAMP, 508), and performance optimization.

Why Viderity: At Viderity, you’ll join a mission-driven team supporting innovative federal programs. We empower developers with modern tools, clear processes, and a culture of collaboration. Come build meaningful systems that make an impact. All done! Your application has been successfully submitted! Apply To this Job