Senior UI Developer — Mission-Critical Frontend; Onsite MD

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in the intelligence community, defense, civil, and commercial markets.

About Nightwing

Nightwing is seeking a Senior UI Developer who excels at crafting intuitive, high-performance user interfaces that empower mission-critical operations. Join a team at the forefront of building modern, responsive applications that transform complex data into actionable insights, strengthening our nation's security with cutting-edge technologies. Nightwing develops strategic and tactical SIGINT solutions that secure the interests of the U.S. and its partners.

Our collaborative environment embraces creativity, integrity, and constant improvement. With access to state-of-the-art tools, opportunities to grow professionally, and meaningful work alongside the nation's finest service members, you'll help shape tomorrow's solutions today.

This is an ONSITE position based out of our National Business Park, Maryland location.

What You Will Do:

• Design and develop modern, responsive user interfaces for mission-critical applications using JavaScript frameworks and libraries
• Build scalable, RESTful backend services using Spring Boot to support dynamic front-end applications
• Create seamless integration between front-end components and Spring Boot microservices, ensuring optimal performance and user experience
• Develop reusable UI components and establish design patterns that promote consistency across multiple applications
• Optimize application performance, focusing on load times, rendering efficiency, and responsive design across various devices and browsers
• Collaborate with UX designers, software engineers, and mission stakeholders to translate complex requirements into elegant, user-friendly interfaces
• Implement secure coding practices and ensure applications meet stringent security standards for classified environments
• Work with RESTful APIs, Web Sockets, and real-time data streaming to deliver dynamic, data-driven user experiences
• Participate in code reviews, contribute to technical documentation, and mentor junior developers
• Ensure adherence to agile development practices and configuration management standards using modern Dev Sec Ops  tools and workflows

Qualifications You Must Have:

• A STEM degree (Science, Technology, Engineering, Mathematics) or equivalent experience
• 5+ years of professional experience in UI/front-end development
• Expert-level proficiency in Java Script (ES6+) and modern frameworks such as React, Angular, or Vue.js
• Strong expertise in Spring Boot for building RESTful APIs and microservices architectures
• Proven experience integrating front-end applications with Spring Boot backends
• Strong understanding of responsive design principles and mobile-first development
• Familiarity with build tools and bundlers (e.g., Webpack, Vite, npm/yarn)
• Knowledge of version control using Git and CI/CD pipelines
• Strong problem-solving skills with attention to detail and user experience
• Excellent communication and teamwork skills, with a passion for innovation and collaboration
• Active TS/SCI security clearance with Polygraph
• U.S. citizenship is required

Qualifications We Prefer:

• Experience with Type Script for type-safe JavaScript development
• Familiarity with containerized environments (e.g., Docker, Kubernetes) and deploying Spring…