Junior and Senior Simulation and Modeling Engineers (Cloud Engineer 3) - 26289

HII's Mission Technologies division•Crane, IN

24d

About The Position

This opportunity resides with All-Domain Operations (ADO), a business group within HII’s Mission Technologies division. All-Domain Operations comprises multi-domain operations, platforms and logistics, and intelligence operations. HII designs, develops, integrates and manages the sensors, systems and other assets necessary to support integrated ISR operations and accelerated decision-making. With data fusion and mission management capabilities for the Department of Defense, the combatant commands and the intelligence community, HII advances the mission around the globe. Meet HII’s Mission Technologies DivisionOur 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 C5ISR, 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 multiple Simulation and Modeling Engineers at our Crane, Indiana location. We are seeking both a seasoned Subject Matter Expert (SME) and a motivated Junior Engineers in Advanced Simulation & Modeling, with emphasis on Systems Tool Kit (STK). The SME will lead mission analysis, scenario development, and multi-domain simulation efforts, driving technical innovation and mentoring junior staff while providing authoritative guidance on aerospace and defense programs. The Junior Engineer roles are ideal for early-career professionals with foundational STK experience who are eager to grow their expertise in mission analysis and simulation under the mentorship of senior engineers. Together, these roles support high-impact projects shaping the future of defense and aerospace operations.

Requirements

Master’s or Ph.D. in Aerospace Engineering, Systems Engineering, or related field
8+ years of experience in simulation, modeling, and mission analysis
Expert-level proficiency in STK, including scripting and API integration
Strong background in orbital mechanics, trajectory optimization, and communication link analysis
Demonstrated ability to lead technical teams and deliver complex projects
TS/SCI clearance
Bachelor’s degree in aerospace engineering, Mechanical Engineering, Computer Science, or related field
0–2 years of experience in simulation/modeling (internship or academic project experience acceptable)
Familiarity with STK and basic scripting (Python, MATLAB)
Strong analytical and problem-solving skills
Secret clearance

Nice To Haves

Experience with DoD mission planning
Familiarity with Monte Carlo simulations and uncertainty analysis
Strong communication and leadership skills
Exposure to mission planning, or systems engineering coursework
Ability to learn quickly and adapt to new tools
Strong teamwork and communication skills
TS/SCI clearance

Responsibilities

Lead complex STK scenario development for space, air, and ground systems
Conduct mission analysis, coverage studies, and trade-off evaluations for satellite constellations and defense systems
Integrate STK with external tools (MATLAB, Python, C++, Simulink) for automated workflows
Provide technical leadership and mentorship to junior engineers
Collaborate with program managers and stakeholders to define simulation requirements and deliverables
Author technical reports, white papers, and presentations for internal and external audiences
Support STK scenario creation for satellite, aircraft, and ground systems
Assist in coverage analysis, trajectory modeling, and system performance evaluation
Automate basic workflows using Python or MATLAB
Document results and contribute to technical reports
Collaborate with senior engineers to learn best practices in simulation and modeling