Web Application Developer - Senior

Location: Chantilly, VA

Clearance: Active TS/SCI required. Agency polygraph will be sponsored.

Salary Range: $130,000 – $150,000 DOE + Comprehensive Benefits Package

Overview

Osprey Talent Solutions is supporting a mission-focused national security partner seeking a Senior Web Application Developer to design and deliver secure, scalable web applications within a multi-enclave enterprise environment.

This role supports high-visibility investigative and data-driven mission systems. The selected candidate will lead frontend development efforts while collaborating across engineering, infrastructure, and security teams to ensure performance, compliance, and operational resilience.

Key Responsibilities:

• Design, develop, and maintain modern web applications using best development practices
• Translate UI/UX wireframes into high-quality, production-ready code
• Optimize applications for performance, scalability, and security
• Implement and maintain Section 508 accessibility compliance
• Integrate frontend applications with RESTful APIs and backend services
• Contribute to search functionality, reporting features, and dashboard capabilities
• Apply secure coding practices to protect against vulnerabilities
• Participate in Agile planning and release activities
• Mentor junior developers and provide technical leadership within the team

Required Qualifications:

• Bachelors degree in Computer Science, Software Engineering, or related field
• Eight or more years of experience in web application development
• Active TS/SCI clearance
• Strong proficiency in Angular, React, or similar modern frontend frameworks
• Advanced experience with JavaScript and TypeScript
• Experience with HTML5, CSS3, and responsive design principles
• Experience integrating frontend applications with RESTful APIs
• Working knowledge of backend technologies such as .NET, Python, or Node.js
• Experience with relational databases (MySQL, PostgreSQL, SQL Server)
• Strong understanding of web application security and performance optimization

Preferred Experience:

• Experience with GraphQL
• Experience integrating search platforms such as Elasticsearch
• Familiarity with messaging systems such as RabbitMQ or Redis
• Experience with containerization technologies (Docker, Kubernetes)
• Experience working within cloud environments supporting national security missions
• Familiarity with CI/CD pipelines and DevSecOps practices
• Experience working in classified environments

Work Environment

• On-site in Chantilly, VA
• U.S. citizenship required. Must be eligible to complete agency-specific polygraph requirements