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Sr Staff / Senior Front End Software Engineer

Scitec Innovations

Boulder, CO · Posted October 28, 2026

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Skills this job asks for

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  • Python
  • Agile
  • Kubernetes
  • Linux
  • React

About the job

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

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

*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 is proud to be an Equal Opportunity employer. VET/Disabled.