Systems Engineer - Expeditionary Unmanned Systems (ExUS) (Hybrid) - 29763

HII's Mission Technologies division•San Diego, CA

2d•$99,960 - $145,000•Hybrid

About The Position

HII Mission Technologies is seeking an experienced Senior Software Developer to support the Expeditionary Unmanned Systems (ExUS) portfolio under NIWC Pacific. This role includes a Hybrid schedule (averaging 1–2 days onsite per week). Hybrid participation is ideal for team collaboration and program integration; however, fully remote may be considered depending on experience and location outside the local area. The Senior Software Developer will design, implement, test, and integrate advanced software components for COIN/Nexus, Common Control System (CCS) modules, and other UUV command‑and‑control capabilities used across the Navy’s ExUS programs. This role supports mission‑critical unmanned underwater vehicle operations and requires strong C#, Angular, UI development skills, and experience with Navy maritime software environments. You will collaborate closely with NIWC PAC technical staff, fleet operators, systems engineers, and government stakeholders to ensure system readiness and the successful transition of new capabilities to the field. #LI-MJ1

Requirements

5 years of relevant experience with a Bachelor’s degree in Computer Science, Engineering, Information Technology, or a closely related technical field (e.g., Software Engineering, Computer Engineering, Systems Engineering); 3 years with a Master’s degree; 0 years with a PhD or Juris Doctorate; or 9 years of relevant experience with a High School Diploma or equivalent.
Hands‑on C# software development experience.
Strong software engineering fundamentals, including design principles, debugging, and code quality best practices.
Experience developing software within distributed, modular, or service‑oriented architectures.
Experience developing front‑end applications using Angular 10 or higher.
Must have a current or active DoD SECRET clearance.

Nice To Haves

Experience developing software for the COIN/Nexus program.
Experience supporting Navy UUV systems such as MK18 Mod 1/Mod 2, Lionfish, Viperfish, or Mobile Gateway Buoy systems.
Experience developing CCS plug‑ins or components for COIN/Nexus and ExUS architectures.
Familiarity with distributed systems, SOA, or SAE UCS architecture.
Understanding of secure coding practices and DoD configuration‑management standards.
Experience supporting test events, field demos, or multi‑agency technical exchanges.
Ability to produce polished, brief‑ready deliverables for senior government audiences.
Experience supporting CONUS/OCONUS deployments or system integration.

Responsibilities

Develop, maintain, and enhance software components supporting COIN/Nexus and ExUS command‑and‑control systems.
Design, build, and optimize C# applications and Angular 10+ front‑end interfaces.
Develop software modules, plug‑ins, and integration components supporting MK18 Mod 1/2, R&D platforms, CCS, and ExUS tools.
Support software verification, validation, debugging, and test readiness for release cycles.
Participate in Government and Fleet test events to demonstrate new capabilities.
Develop test plans, test reports, and contribute to CONOPS development for ExUS systems.
Create, edit, and maintain SOPs, system documentation, and training materials.
Support technical exchanges, community-of-interest forums, and program reviews.
Produce briefs, analysis reports, presentations, engineering change proposals (ECPs), and technical documentation.
Review engineering, technical, and acquisition documents and provide feedback.
Assist with coordination of engineering, logistics, and program documentation for both CONUS and OCONUS outfitting, integration, and POR activities.
Collaborate with NIWC PAC, ISEA, and fleet operators to transition new software capabilities.
Deliver “brief-ready” products requiring no government rework.