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; andaircraftsurvivability missions. Important Notice : SciTecexclusively works on U.S. government contracts that require U.S. citizenship for all employees. SciTeccannot 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 requirementswill not be considered. We are seeking a Senior Staff / SeniorFrontendEngineer to design, develop, and maintain user‑facing web applications and support backend services for real‑time datavisualization. This role focuses on building reliable, visually intuitive, and high‑performance applications thatoperatecontinuously in mission‑critical environments The ideal candidate is a strong contributor with deep TypeScriptandReactexpertise , sound software engineering judgment, and the ability to collaborate across disciplines while influencing technical direction through example and mentorship. Responsibilities Design, develop, andmaintainfrontend software, including code, tests, and documentation Build and integrateUserInterfaces 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, andmonitorreal‑time data Identifyand 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 Qualifications 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, andReactor Angular Experience developing andmaintainingapplications that handle real‑time data Proficiencyworking 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 ActiveDoD security clearance Preferred Qualifications Advanced degree in Computer ScienceorEngineering 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,includingDocker,Kubernetes,Helm,andGitLab 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 package, including: 4% Safe Harbor 401(k) match 100% company paid HSA Medical insurance, with a choice of 2 buy‑up options 80% company paid Dental insurance 100% company paid Vision insurance 100% company paid Life insurance 100% company paid Long‑term Disability insurance Short‑term Disability insurance Annual Profit‑Sharing Plan Discretionary Performance Bonus Paid Parental Leave Generous Paid Time Off, including Holiday, Vacation, and Sick Pay Flexible work hours The pay range for this position is $111,000 – $152,000 / year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and key skills. This is not a guarantee of compensation. SciTec is proud to be an Equal Opportunity employer. VET/Disabled. #J-18808-Ljbffr