Staff / Sr Staff Full Stack UI 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. Applicants that do not meet this requirement will not be considered. We are seeking a Full Stack Software Engineer to design, develop, and maintain user-facing web applications and supporting backend services for real-time data and geospatial information systems. This role focuses on building reliable, visually intuitive, and high-performance applications that operate continuously in mission-critical environments. The ideal candidate is comfortable working across the stack—from frontend user interfaces to backend data pipelines—and thrives in a collaborative, Agile development environment. Responsibilities Design, develop, and maintain frontend and backend software, including code, tests, and documentation Build and integrate user interfaces and data pipelines for real-time and geospatial 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 2+ years of professional experience developing user-facing web applications, including systems that operate continuously (24/7) Strong experience with JavaScript, including React, Node.js, and Redux 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 Ability to obtain and maintain a DoD security clearance Candidates who have any of the following skills will be preferred: Advanced degree in Computer Science, Engineering, Mathematics, or Physical Sciences Experience with TypeScript 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 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, Jenkins, GitLab CI/CD Experience with databases and data stores such as SQL, PostgreSQL, Redis Experience working with remotely sensed data, including OPIR, EO/IR, SAR, Spectral, or RF Active DoD security clearance *Resumes, Cover Letters, and Applications which are generated by AI will not be considered for employment. Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information. 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 $98,000 - $146,000 / 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.