Senior Software Engineer Security Clearance

Position: Senior Software Engineer with Security Clearance
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 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.

Job Description

• Senior Full Stack Software Engineer (Level III) – Software Solutions

• Full time

• Remote, Hybrid, and Onsite options – San Diego, CA Accelint is seeking an enthusiastic and talented senior software engineer to provide modern software development and sustainment of web applications for the Department of Defense (DoD). Day-to-day efforts include working with highly talented professionals and subject matter experts to advance state of the art of mission-critical U.S. Navy software systems. U.S. Navy warfighters need your help to rapidly deliver cutting edge software solutions to the fleet for planning and executing missions for carrier strike groups conducting operations around the world.

Mission planners need to collaborate in order plan for anti-surface warfare, anti-submarine warfare, ballistic missile defense, autonomous drone swarm information gain, and a wide range of other mission areas. Duties and Responsibilities

• Break down engineering problems and design software to solve them (e.g., use case analysis, specification authoring, UML-like diagraming, application of design patterns)
• Own and deliver software capability streams from start to finish
• Deliver high quality code with enthusiasm and passion

• Mentor other software engineers (e.g. code reviews, design analyses, professional growth)
• Incrementally improve software development processes

Required Qualifications

• Currently hold an active US security clearance or be able to obtain one

• Bachelor’s degree in computer science, engineering, mathematics, physics, or related field

• 7+ years of demonstrated development experience with:
o Object-oriented programming (e.g., Java, Python), and/or
o UI development with modern web technologies (e.g., Node.js, React, Type Script)

• Proficiency in all or some of the following areas:
o Complex data modeling, database design and Data Access Layer (DAL) design patterns
o Asynchronous messaging technologies and design patterns (e.g. Web Sockets, Kafka)
o RDBMS (e.g., Postgre

SQL, MySQL) best practices
o Implementing authentication and authorization policies conforming to OpenID Connect (OIDC) / OAuth 2.0
o UI development with modern web technologies (e.g., Node.js, React, Type Script) o UI state management (e.g. Redux, Zustand)
o Type-sensitive data models o Unit testing frameworks o Standards-based REST API specification design and implementation o Dependency management principles and tools
o Containerization and orchestration technologies (e.g., Docker, Kubernetes)

Preferred Qualifications

• Software engineering experience with:
o Java Quarkus 3.x Runtime
o Material UI React Components
o Application Security analysis and vulnerability mitigation (e.g., Sonar Qube, Coverity, JFrog X-Ray, ZAP, Black Duck Software Risk Manager)
o CI/CD build automation tools (e.g., Jenkins, Tekton,…