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Senior Front End Software Engineer

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SciTec

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Location:
United States , Boulder

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Contract Type:
Not provided

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Salary:

120000.00 - 175000.00 USD / Year

Job 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. We are seeking a Front End Software Engineer to design and build user-facing web applications that present complex, real-time data in a clear, reliable, and intuitive way. This role focuses on modern frontend development, performance, and usability for mission-critical systems that operate continuously. The ideal candidate is a strong frontend engineer who cares deeply about code quality, user experience, and system reliability, and who works effectively alongside backend, platform, and systems engineers.

Job Responsibility:

  • Design, develop, and maintain frontend web applications using modern JavaScript frameworks
  • Build responsive, intuitive, and performant user interfaces for real-time or near-real-time data
  • Collaborate with backend and platform engineers to integrate APIs and data services
  • Translate user and customer needs into clear UI designs and technical implementations
  • Ensure frontend applications are reliable, maintainable, and testable
  • Identify and remediate UI bugs, performance issues, and security concerns
  • Participate in code reviews, design discussions, and Agile ceremonies
  • Contribute to frontend architecture decisions, including state management and component design
  • Write and maintain automated frontend tests
  • 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
  • 5+ years of professional experience developing frontend web applications
  • Strong proficiency in JavaScript and modern frontend frameworks such as React
  • Experience with HTML5, CSS3, and responsive design
  • Experience integrating frontend applications with REST or similar APIs
  • Familiarity with frontend build tooling and package management
  • Experience working in Linux environments and using Git
  • Strong understanding of frontend architecture, modular design, and maintainability
  • Attention to detail and commitment to high-quality, well-tested code
  • Strong verbal and written communication skills
  • Ability to work in person at the Boulder, CO office
  • Ability to obtain and maintain a DoD security clearance

Nice to have:

  • Experience with TypeScript
  • Experience building data-rich or real-time user interfaces
  • Experience with state management libraries (Redux, Zustand, etc.)
  • Experience with frontend testing frameworks (Jest, Testing Library, Playwright, Cypress)
  • Familiarity with design systems and component libraries
  • Experience with data visualization or geospatial tools (e.g., D3, Cesium, WebGL)
  • Experience working in Agile software development environments
  • Experience collaborating with UX/UI designers
  • Active DoD security clearance
What we offer:
  • 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

Additional Information:

Job Posted:
February 14, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

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