Senior Frontend Software Engineer; Level III – Product Development; FSI

Overview

Accelint is a mission-driven technology company focused on strengthening national security and supporting critical industries. We build the technologies that help operators and organizations see what’s happening, make faster and better decisions, take action with confidence, and stay ready for what comes next. Our work includes advanced sensors, autonomous systems, mission command and control software, AI-enabled training and simulation, and tools that improve logistics, maintenance, and overall readiness.

For nearly 30 years we have supported military and civilian agencies across the Department of Defense, U.S. allies and partners, and essential industries. When you join Accelint, your work directly contributes to protecting national security and strengthening the systems our society depends on.

Accelint brings together the talents of Hypergiant, Forward Slope, Systems Innovation Engineering, Soar Tech, and Highbury Defense Group under one mission, with each entity contributing deep expertise in its domain. This role is part ofour Forward Slope (FSI) division, which focuses on C2, engineering, cyber, and international programs. FSI integrates complex systems, transforms geospatial and operational data into clear insights, and supports naval, joint, and allied missions with technical rigor and global perspective.

• Frontend Software Engineer III – Product Development
• Full time
• Remote, Hybrid, and Onsite options – San Diego, CA

• Design and implement frontend applications using modern web technologies
• Translate operational and product requirements into intuitive, dependable user interfaces
• Own frontend capability streams from design through deployment and sustainment
• Design and implement UI state management and data flows
• Collaborate closely with backend engineers to integrate platform APIs
• Ensure frontend performance, reliability, and maintainability
• Mentor other engineers through code reviews and frontend design discussions
• Improve frontend development standards, tooling, and processes

• Bachelor’s degree in computer science, engineering, mathematics, physics, or related field
• 7+ years of demonstrated development experience with:
• Modern frontend frameworks (React, Node.js, Type Script)
• Delivering production UIs for complex or operational systems
• Passion for clean, maintainable and accessible UI development
• Mentoring or technically leading other engineers
• Proficiency in all or some of the following areas:
• UI development with React and modern web frameworks
• UI state management (Redux, Zustand, or similar)
• REST API integration and data handling
• Unit testing frameworks for frontend applications
• Build dependency management and tooling
• Authentication and authorization concepts (OIDC / OAuth 2.0)

• UI component libraries (Material UI, Tailwind)
• GIS data visualization or mapping libraries
• CesiumJS
• Git Lab CI/CD build automation

Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment.

To learn more about the security clearance process please access this link.

Accelint companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs.

For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights:

The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors.

Benefits include…

• Paid Time Off
• Paid Company Holidays
• Optional HSA and FSA
• Base and Voluntary Life Insurance
• Short Term & Long-Term Disability Insurance
• 401k Matching
• Employee Assistance Program

The pay range for this role is:

125, USD per year (San Diego, CA (FSI))