Sr. Software Developer; Simulation & Dev Lab

Sr. Software Developer (Real-Time Simulation & Dev Lab) - 27748

Location: California, MD, Maryland, United States

Requisition Number: 27748

Required Travel: 0 - 10%

Employment Type:

Full Time/Salaried/Exempt

Anticipated Salary Range: $-$

Security Clearance:
Top Secret

Level of

Experience:

Senior

This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business.
As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross-domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece‑parts.
For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life‑cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness.
HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country. HII meets clients’ toughest nuclear and environmental challenges.

Meet HII’s Mission Technologies Division
Our team of more than 7,000 professionals worldwide delivers all‑domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5

ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.

HII Mission Technologies is seeking a Senior Software Engineer to support development and integration of advanced modeling and simulation capabilities within the Joint Simulation Environment (JSE) at NAS Patuxent River, MD. JSE is a high‑fidelity, continuously evolving synthetic battlespace used for training, test, threat replication, analysis, and R&D across the Navy and joint forces.

As part of an on‑site team supporting NAWCAD, you will design, enhance, and maintain critical software components used across the JSE ecosystem—including NGTS, DIADS, GRID, and other constructive and virtual simulation frameworks. This role is ideal for an experienced C++ engineer who enjoys solving complex technical problems, contributing to large‑scale simulation systems, and working closely with operators, engineers, and mission stakeholders.

Your work directly strengthens the Navy’s ability to train, test, and evaluate next‑generation capabilities in realistic multi‑domain environments. Your engineering contributions will improve simulation accuracy, system performance, interoperability, and threat representation used by aviators, analysts, and test organizations. You will play a key role in advancing JSE as a mission‑critical training and test environment for the Department of Defense.

• Design, develop, integrate, and maintain software modules for the JSE synthetic environment and related systems.
• Implement C++/C software features supporting constructive entities, threat systems, visualization components, and environmental behaviors.
• Evaluate and review C++ code, ensuring high‑quality, scalable, and maintainable designs.
• Develop multi‑threaded or parallel‑processing components and inter‑process communication solutions.
• Use Git for daily development, including branching, merging, pull requests, and resolving conflicts.
• Work in Linux (Bash) and Windows environments; interact with remote repositories and CI/CD infrastructure.
• Collaborate with other engineers and system architects to design new capabilities and support integration of NGTS, DIADS, GRID, and related toolsets.
• Partici…