GN&C Engineer

Posted 3 Days Ago
Be an Early Applicant
Houston, TX, USA
In-Office
Mid level
Security • Cybersecurity
The Role
Develops, integrates, tests, and validates safety-critical guidance, navigation, and control algorithms and flight software for NASA deep-space exploration. Performs six-degree-of-freedom simulations, flight and simulation software analyses, requirements verification, and process improvement. Uses MATLAB, Simulink, Autocode, Python, C, and C++ while collaborating with NASA personnel and contractors.
Summary Generated by Built In

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!     

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States. 

We have an exciting opportunity for a GN&C Engineer to join the team with ERC, a teammate company!

The GN&C Engineer will:

  • Develop and evaluate safety-critical flight software
  • Develop, integrate, and test GN&C algorithms
  • Utilize MATLAB/Simulink/Autocode skills to update GN&C Flight Software
  • Utilize Python & C/C++ skills to analyze and test GN&C Flight Software
  • Validate and Verify GN&C algorithms and requirements
  • Provide recommendations for improvements of flight software, its processes and procedures
  • Perform deep-dive analyses of flight and simulation software
  • Perform other duties as required

Requisition Qualifications:

This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

  • Typically requires a bachelor's degree in Engineering with experience in the field or in a related area.
  • Significant knowledge of GN&C
  • Experience with development and analysis of 6 DOF algorithms and simulations
  • Proficiency with C/C++ and Python
  • Familiarity with validation and verification of GN&C algorithms and requirements
  • Excellent communication skills and the ability to work in a team environment consisting of NASA civil servants and various contractor employees

Requisition Preferences:

  • Master’s degree in engineering and 3 years or more of experience in the field or in a related area; or a PhD. in engineering or in a related field
  • Significant experience with C, C++, and Python
  • Significant experience with MATLAB including Simulink, Stateflow, and Autocode
  • Safety and flight-critical embedded software development
  • Experience with source code control and continuous integration
  • Agile software development
  • Experience in the following flight software specialty areas:
    • GN&C software development
    • Software process and procedure development
    • Software Integration and Build Management
  • Experience with Kalman filters, Neural Networks, UDU factorization and/or advanced smoothers
  • Knowledge of Artificial Intelligence and/or Machine Learning
  • Experience with TRICK/JEOD simulation architecture

 Why Join Our Team?

In addition to exciting career opportunities, we also ave:

  • Excellent personal and professional career growth
  • 9/80 work schedule (every other Friday off), when applicable
  • Onsite cafeteria (breakfast & lunch)
  • Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com

  • Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.
  • Must be able to complete a U.S. government background investigation.
  • Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

       

Compensation Details:

EN1-ESS

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.


Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock purchase plan

  • Tax-saving options

  • Disability and life insurance

  • Pet insurance


Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

10/02/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Skills Required

  • Bachelor’s degree in engineering or a related field
  • Significant knowledge of guidance, navigation, and control
  • Experience developing and analyzing six-degree-of-freedom algorithms and simulations
  • Proficiency with C, C++, and Python
  • Familiarity with validation and verification of GN&C algorithms and requirements
  • Excellent communication skills and ability to work in a team environment
  • Master’s degree in engineering with three or more years of experience, or a PhD in engineering or a related field
  • Significant experience with MATLAB, including Simulink, Stateflow, and Autocode
  • Experience developing safety- and flight-critical embedded software
  • Experience with source code control and continuous integration
  • Experience with Agile software development
  • Experience with GN&C software development, software processes, software integration, and build management
  • Experience with Kalman filters, neural networks, UDU factorization, or advanced smoothers
  • Knowledge of artificial intelligence or machine learning
  • Experience with TRICK/JEOD simulation architecture
  • Ability to complete a U.S. government background investigation
  • U.S. citizenship or permanent residency may be required

Amentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.

  • Healthcare Strength — Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
  • Retirement Support — Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
  • Leave & Time Off Breadth — Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.

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The Company
HQ: Chantilly, VA
18,261 Employees

What We Do

Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.

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