Gnc Engineer

Job Title: GNC Simulation Software Engineer Job Description Design, analyze, and implement GNC algorithms and simulations for aerospace vehicles. Maintain and develop analysis tools, regression test scenarios, Monte Carlo framework, and simulation architecture. Perform 6‑DOF modeling, simulation, and performance analysis to evaluate system behavior under both nominal and off‑nominal conditions. Build high‑fidelity dynamic models of vehicles, sensors, actuators, and environmental models. Conduct Monte Carlo analyses and sensitivity studies to validate robustness and reliability. Validate simulation models against test data and engineering expectations. Use programming languages including C/C++, Python, and Matlab (or similar) to develop simulations. Collaborate with embedded software teams to integrate, test, and verify GNC functionality on hardware‑in‑the‑loop (HIL) systems. Support the development of requirements, interface definitions, and verification plans for flight software. Responsibilities

- Design and implement GNC algorithms and simulations for aerospace vehicles.
- Maintain and develop analysis tools and simulation architecture.
- Perform 6‑DOF modeling, simulation, and performance analysis.
- Build high‑fidelity dynamic models of vehicles, sensors, and actuators.
- Conduct Monte Carlo analyses and sensitivity studies.
- Validate simulation models against test data.
- Collaborate with embedded software teams for GNC functionality integration.
- Support development of requirements and verification plans for flight software.

Essential Skills

- 5+ years of software experience.
- 5+ years in the aerospace industry.
- Proficiency in C++ and Python programming.
- Experience with NASA GUNNS and TRICK Simulation Software.
- Flight Vehicle Experience.
- Proficiency in Simulink and software development.
Job Type & Location
This is a Contract position based out of Houston, TX.
Pay and Benefits
The pay range for this position is $55.00 - $80.00/hr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Houston,TX.
Application Deadline
This position is anticipated to close on Sep 30, 2026. About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without
regard to race, sex, age, color, religion, national origin, veteran status, disability,
sexual orientation, gender identity, genetic information or any characteristic protected
by law.

If you would like to request a reasonable accommodation, such as the modification or
adjustment of the job application process or interviewing process due to a disability,
please email [email protected] for other accommodation options.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the
city and county of San Francisco, we will consider for employment qualified applicants
with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a
condition of employment or continued employment. An employer who violates this law
shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process,
including sourcing, screening, and evaluating candidates. AI helps assess applications
and qualifications, but final decisions are made by our hiring team. By applying, you
acknowledge and agree that your application may be reviewed using AI tools.