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

- **Company:** HII Mission Technologies
- **Location:** United States
- **Experience:** Expert
- **Salary:** $128,989.0 - $185,000.0
- **Contract:** Contract
- **Skills:** Testing (Software), Microsoft Access, Java (Programming Language), Agile Methodology, Bash Shell, C++ (Programming Language), Continuous Integration, Software Debugging, Linux, Interoperability, Inter-Process Communication, Python (Programming Language), Linux Commands, Object-Oriented Software Development, Red Hat Enterprise Linux, Release Management, Real Time Simulation, SAP (Applications), Systems Architecture, Multithreading, Software Modules, Git, SC Clearance, Git Flow
- **Published:** October 6, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9219529/sr-software-developer-real-time-simulation-dev-lab-27748

## About the Role

* 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.
 * Strong experience in object-oriented software development, primarily in C++.
 * Hands-on experience using Git (branching, merging, conflict resolution).
 * Proficiency in Linux command-line environments (Bash).
 * Ability to manage multiple tasks and priorities in a collaborative team setting.
 * Strong communication, troubleshooting, and organizational skills.
 * Current or active (or interim) Secret clearance, with ability to obtain and maintain a DoD Top Secret clearance.
 * U.S. Citizenship is required., * Active Top Secret/SCI clearance.
 * Experience with NGTS, GRID, DIADS, ART, WSCE, FIAB, VATS, or related simulation frameworks.
 * Experience with object-oriented programming in Java or Python.
 * Experience contributing to system architecture, design reviews, or integration planning.
 * Background in Agile development practices.
 * Advanced Git usage, including release management, branching strategies, and multi-repo workflows.
 * Familiarity with Red Hat Enterprise Linux (RHEL).
 * Experience supporting Special Access Program (SAP) environments.

Physical Requirements

Adequate visual acuity and manual dexterity for meeting the requirements Software Engineer family.

## Description

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.
Impact

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.
 * Participate in software testing, debugging, documentation, and customer demonstrations.
 * Support training, troubleshooting, and operational use of JSE components alongside government personnel.