Full Stack Software Engineer III (FSI)

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, SoarTech, and Highbury Defense Group under one mission, with each entity contributing deep expertise in its domain. This role is part of our 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. 

Accelint is seeking a Full Stack Software Engineer III to help build and evolve our Command and Control (C2) platform. This role is ideal for engineers who enjoy owning features end-to-end and contributing across the entire product stack. You will work closely with engineers, product staff, and UX designers to deliver reliable capabilities that directly support our customers’ missions.

Job Description

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

Duties & Responsibilities 

• Design, implement, and deliver full-stack platform capabilities
• Translate product and mission requirements into cohesive backend and frontend solutions
• Break down complex problems through use case analysis, specifications, and design artifacts
• Own features end-to-end, from backend services through frontend UI
• Apply design patterns and best practices across the full technology stack
• Collaborate with cross-functional teams to ensure platform usability and reliability
• Mentor other engineers and contribute to engineering excellence
• Support continuous improvement of platform architecture and development practices
  

Required Qualifications 

• Bachelor’s degree in computer science, engineering, mathematics, physics, or related field
• 7+ years of demonstrated development experience with:
• • Object-oriented programming (e.g., Go, Python),
  • Modern frontend frameworks (React, Node.js, TypeScript)
  • Delivering production systems with high reliability requirements
  • Strong commitment to high-quality, well-tested code
  • Mentoring or technically leading other engineers
• Proficiency in all or some of the following areas:
• • Backend data modeling, database design, and DAL patterns
  • REST API design and implementation
  • Asynchronous messaging technologies (e.g., WebSockets, NATS.io)
  • Relational databases (PostgreSQL, MySQL)
  • UI state management (Redux, Zustand)
  • Authentication and authorization using OIDC / OAuth 2.0
  • Unit testing frameworks
  • Build dependency management
  • Containerization and orchestration (Docker, Kubernetes)

Preferred Qualifications

• UI component libraries (Material UI, Tailwind)
• GitLab CI/CD build automation
• GIS data management, processing, or visualization
• CesiumJS
  

Clearance Requirements 

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.  

EEOC & Know Your Rights 

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: English Spanish 

Pay Scales & Benefits 

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 

• Medical, Dental & Vision Insurance 

• Optional HSA and FSA 

• Base and Voluntary Life Insurance 

• Short Term & Long-Term Disability Insurance 

• 401k Matching 

• Employee Assistance Program