Sr Staff / Senior Front End Software Engineer
- Salary
- $127,000 - $193,000 / year
- Level
- Staff
- Visa
- Not offered
Not stated in the posting: work type.
Open. First seen 28 October 2026.
About the role
SciTec, a Firefly Aerospace Company, 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 requirement will not be considered.
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.
Responsibilities
- 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 obtain and maintain a DoD security clearance
SciTec's standard text
Candidates who have any of the following skills will be preferred:
- Experience with TypeScript
- Experience with Docker, Kubernetes, Openshift, and CICD frameworks
- Experience with Python, Unreal Engine and C++
- 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
SciTec's standard text
*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 $127,000- $193,000 / 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's standard text
SciTec is proud to be an Equal Opportunity employer. VET/Disabled.
What this role asks for
Particular to this role
Cypress · Git · HTML · Jest · OpenShift · Playwright · Redux · Unreal Engine
Rare in SciTec's other 49 open postings.
Standard for frontend roles
CSS · JavaScript · React · TypeScript
Common in frontend postings at any company.
In most of SciTec's ads
Python
Named in most of its open postings, whatever the role.
89% of this description is written for the role. The rest is SciTec's standard text, folded away below.
Compared with SciTec's other open jobs.
The team: Defense, Intelligence, & Space Solutions HIRES STEADILY
This role is one of 44 open in Defense, Intelligence, & Space Solutions. 25 were posted in the last 30 days and the oldest in April: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (30 of 44), Kubernetes (24 of 44), Agile (22 of 44), Linux (22 of 44), CI/CD (19 of 44), C++ (18 of 44), Docker (17 of 44)
OTHER ROLES ON THIS TEAM
- Project Control Analyst posted Oct 27
- Senior Staff / Senior Full Stack Engineer (Clearance Required) posted Oct 26
- Senior Staff / Senior Algorithm Engineer (Clearance Required) posted Oct 26
- Senior Staff / Senior DevSecOps Engineer (Clearance Required) posted Oct 26
- Staff / Sr Staff C++ Software Engineer posted Oct 23
- Senior Staff / Senior Cybersecurity Engineer (Clearance Required) posted Oct 22
- Senior Staff / Senior Systems Integration Engineer posted Oct 21
- Associate / Staff Software Release Engineer posted Oct 20
- Application Security Engineer posted Oct 20
- Staff / Senior Staff Test Automation Engineer (Clearance Required) posted Oct 20
- PKI and Certificate Lifecycle Engineer (Clearance Required) posted Oct 19
- Technical Program Manager (Radar) posted Oct 19
- Project Control Analyst posted Oct 16
- Principal Software Engineer - Deployment Environments Lead posted Oct 9
- Principal Software Engineer - Data Storage Lead posted Oct 9
- Principal Software Engineer - Data Storage Lead posted Oct 9
- Principal Software Engineer - Workload Communications Domain Lead posted Oct 9
- Principal Software Engineer - Deployment Environments Lead posted Oct 9
- Principal Software Engineer - Workload Communications Domain Lead posted Oct 9
- Aerospace Systems Engineer posted Oct 6
- System Security Architect (Clearance Required) posted Oct 5
- Platform Software Engineer posted Oct 2
- Senior Staff / Senior Numerical Algorithm Software Engineer posted Sep 30
- Associate / Staff Mission Data Analyst (Clearance Required) posted Sep 29
- Staff / Sr Staff Test Automation Engineer posted Sep 25
- Senior Aerospace Systems Engineer posted Sep 25
- Staff / Senior Staff Systems Engineer posted Sep 21
- Associate / Staff Digital Systems Engineer posted Sep 21
- Systems Engineering Lead posted Sep 21
- Sr Staff Software Engineer posted Sep 11
- Staff / Sr Staff Python Software Engineer posted Aug 27
- Staff / Senior Staff Test Automation Engineer (Clearance Required) posted Aug 24
- Sr Staff / Senior Software Engineer posted Aug 21
- Systems Engineer - Compute and Software Systems posted Aug 12
- Principal Radar Systems Engineer posted Aug 4
- Hardware Integration Engineer posted Aug 4
- Principal Linux System Administrator (Clearance Required) posted Aug 3
- Senior Numerical Algorithm Software Engineer posted Jul 29
- Lead Application Security Engineer posted Jul 20
- Senior Staff / Senior Machine Learning Engineer posted Jun 25
- Staff / Sr Staff Application Security Engineer posted Jun 1
- Staff / Sr Staff Numerical Algorithm Software Engineer posted May 15
- Staff / Sr Staff C++ Software Engineer posted Apr 16
From the team and dates on SciTec's own job board.
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