# Staff / Sr Staff Full Stack UI Engineer > SciTec · Boulder, United States · — · Posted 2026-02-20 **Workplace:** on_site **Department:** FORGE ## Description 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 ## Requirements - 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.** ## Benefits 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. ## Apply [Apply at SciTec](https://apply.workable.com/scitec/j/489E8A1556/apply) --- Powered by [Workable](https://www.workable.com)