Senior Software Engineer

This position requires active U.S. national security clearance and the ability to obtain one. To learn more about the security clearance process please access this link. Additionally, travel may be required to customer and subcontractor sites as well as other office locations.

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 Hypergiant division, which specializes in mission command interfaces and command-and-control software. Hypergiant builds intuitive, operator-focused tools that give teams clarity, improve coordination, and accelerate decision-making in complex environments.

We are looking for a Senior Staff Software Engineer to lead the design, development, and evolution of next-generation command and control (C2) software systems. In this role, you will serve as a technical authority and cross-team architect, driving technical excellence across multiple agile delivery teams. You will shape architectural decisions, mentor senior engineers, and collaborate closely with leadership, partners, and the Department of Defense (DoD) community to deliver secure, scalable, and interoperable cloud-based solutions.

This role is ideal for someone who has mastered fullstack engineering and is ready to influence the direction of complex, distributed systems spanning web, backend, and data domains.

Architecture & System Design

• Lead end-to-end technical architecture for multiple products or services, defining standards and ensuring scalability, performance, and maintainability.
• Design system interfaces and integration patterns that enable reuse and interoperability across Hypergiant’s C2 portfolio.
• Evaluate emerging technologies, conduct build-vs-buy analysis, and document key architectural decisions and trade-offs.
• Partner with cloud and infrastructure teams to ensure solutions align with IL4/IL5 and FedRAMP security frameworks.

Technical Leadership

• Provide expert guidance across front-end, back-end, and data layers — enabling high-scale, real-time systems.
• Oversee design and implementation reviews to ensure code quality, security, and system reliability.
• Drive modernization initiatives (e.g., containerization, observability, CI/CD optimization) across delivery teams.
• Collaborate with product owners and technical leads to shape roadmaps and technical milestones that align with program objectives.

Cross-Team Enablement

• Identify and champion reusable frameworks, libraries, and shared components across teams and programs.
• Act as the connective tissue between architecture councils, delivery teams, and client stakeholders.
• Provide leadership on incident response and system performance issues, leading root cause analysis and long-term resolution.

Mentorship & Culture

• Mentor and coach engineers across the organization, fostering technical depth and independent problem solving.
• Contribute to internal engineering standards, code quality guidelines, and best practices documentation.
• Lead by example through hands-on contribution to complex or high-risk projects.

• 12+ years of professional software engineering experience, with at least 8+ years in full-stack web development.
• Deep expertise with React,…