Senior Staff / Senior Frontend Engineer

SciTec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft survivability missions. **Important Notice**: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. SciTec cannot sponsor or assume sponsorship of employee work visas of any type. Further, U.S. citizenship is a requirement to obtain and keep a security clearance. Applicants that do not meet these requirements will not be considered. We are seeking a **Senior Staff / Senior Frontend Engineer** to design, develop, and maintain user-facing web applications and support backend services for real-time data visualization. This role focuses on **building reliable, visually intuitive, and high-performance applications** that operate continuously in mission-critical environments The ideal candidate is a strong contributor with deep **TypeScript and React expertise**, sound software engineering judgment, and the ability to collaborate across disciplines while influencing technical direction through example and mentorship. ### Responsibilities - Design, develop, and maintain frontend software, including code, tests, and documentation - Build and integrate User Interfaces and data pipelines for real-time data visualization - Design, prototype, and implement user-centric interfaces that translate customer needs into intuitive solutions - Maintain and improve 24/7 user-facing applications that display, manage, and monitor real-time data - Identify and resolve software defects and security vulnerabilities - Collaborate with team members during Agile ceremonies, including standups, sprint planning, and retrospectives - Contribute to architectural discussions and technical design decisions - Ensure adherence to software engineering best practices, including code quality, testing, and maintainability - Support documentation and knowledge sharing across teams - Perform other duties as assigned - Bachelor’s degree in Computer Science, Engineering, Mathematics, Physical Sciences, or a related technical field - 5+ years of professional experience developing user-facing web applications - Strong experience with JavaScript, TypeScript, and React or Angular - Experience developing and maintaining applications that handle real-time data - Proficiency working in Linux environments and using Git - Solid understanding of software engineering principles, including modularity, maintainability, and testability - Strong attention to detail and commitment to high-quality code - Excellent verbal and written communication skills - Active DoD security clearance **Candidates who have any of the following skills will be preferred:** - Advanced degree in Computer Science or Engineering - Experience developing geospatial or mapping applications, including Cesium - Experience creating or contributing to design systems - Experience with UI/UX prototyping tools (e.g., Figma, Adobe XD, Axure) - Experience working across the stack with Python, Go, Java, and/or C++ - Familiarity with messaging and streaming technologies, such as: Protocol Buffers, ZeroMQ, Kafka, gRPC, REST APIs - Experience with microservice architectures - Professional experience with DevOps and CI/CD tools, including Docker, Kubernetes, Helm, and GitLab CI/CD - Experience with databases and data stores such as PostgreSQL, MongoDB, and Elastic - Active DoD TS/SCI security clearance **\*Resumes, Cover Letters, and Applications which are generated by AI will not be considered for employment.** SciTec offers a highly competitive salary and benefits packag…