Senior Software Engineer

Amentum; Huntsville (AL); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life insurance

Pet insurance

Job summary

Amentum Space Exploration Division (ASED) is seeking a Senior Software Engineer to own mission-critical flight software components for the Artemis mission, including design and development of the SLS vehicle software. You will collaborate with spaceflight hardware and software teams and contribute to rigorous engineering processes in an Agile environment.

Requires a related engineering degree, US citizenship, STAR ID, and extensive experience in C/C++, real-time OS, and spaceflight software

Job description

Join Our Journey

At Amentum Space Exploration Division (ASED) your growth is our priority! That’s why we offer an array of exciting opportunities for your career development. From the transformative Team Lead Academy to education reimbursement, personalized mentoring, and engaging company-sponsored networking events, you have the power to shape your professional journey in a way that aligns with your aspirations.

Find Your Community

At the heart of our thriving business are the incredible people who make it all possible. We celebrate a vibrant array of cultures, backgrounds, and experiences. Here, we foster an environment where everyone - employees, clients, and partners alike - are treated with the dignity and respect they deserve.

Prioritize Your Well-Being

Our extensive benefits package is designed with your health in mind. Enjoy wellness programs, paid holidays, generous time off, employee perks, and so much more. We’re here to help you achieve a harmonious balance in your life — both at work and at home.

Together, We Soar

Our dynamic team consists of 10 companies united in a single mission: to venture from Moon to Mars and beyond. Join us on this extraordinary adventure!

We are searching for a Senior Software Engineer to join the Space Launch System (SLS) Flight Software (FSW) Design Team, playing a pivotal role in the continued success of the Artemis mission. In this position, you will assume full ownership of mission- critical, human-rated flight software components, contributing directly to the design and development of the SLS vehicle that will propel humans back to the Moon.

Required Qualifications

A degree in computer engineering, computer science, electrical engineering, or a related discipline is necessary. While a degree from an ABET-accredited university is preferred, candidates should meet one of the following educational and experience benchmarks: Ph.D. with a minimum of 9 years of experience, Master’s with at least 13 years, or Bachelor’s with at least 15 years. Must be a US Citizen and have a STAR ID.

Essential Skills and Experience

• Demonstrated proficiency in designing, developing, and testing real‑time embedded spaceflight or complex mission- critical system software, adhering to both organizational and project coding standards, as well as NASA standards and practices.
• Strong background in Object- Oriented Design and Implementation, with advanced expertise in C/C++ programming.
• Experience with a variety of scripting languages (Python, JavaScript, bash/shell, etc.) and development environments (Eclipse, Visual Studio, etc.).
• Familiarity with real- time operating systems such as VxWorks and common tools including the Atlassian suite (Jira, Confluence) and Git/GitHub.
• Knowledge of continuous integration practices and Agile development processes.
• Skilled in SW/HW integration, debugging, troubleshooting, and handling various communication/protocol interfaces (ethernet, RS422, 1553, etc.).
• Competence in Unified Modeling Language (UML) and experience collaborating within a software development team in an Agile environment.
• Ability to work independently and effectively as part of a diverse team.
• Excellent communication skills, enabling professional interactions with customers, stakeholders, and cross-organizational colleagues.

Desirable Experience

• Hands- on involvement in integrating, troubleshooting, executing, and testing spaceflight software in both hardware- in- the- loop and simulated environments.
• Professional Agile/Scrum training.
• Knowledge of fault- tolerant avionics architectures.

Essential Functions

Work Environment: Office environment. Requires ability to provide clear, concise, accurate and timely communication, both verbally and in writing (100%). Requires ability to interact professionally with co- workers, management, and client (100%). Requires travel in the domestic USA (5%). Requires ability to work at a computer for long periods of time (100%).

Physical Requirements: Requires sitting for extended periods of time in meetings with peers, management, and with our client at NASA facilities to discuss technical issues (10%). Also, requires sitting for extended periods of time at a desk to write reports and perform engineering tasks (80%). Requires ability to use stairs or elevators for access between floors and multiple buildings at NASA and our facilities (10%).

Equipment and Machines: Requires ability to operate a personal computer, a telephone, fax machine, copier, calculator, and other general office equipment (100%).

Attendance: Normal workday 7:30-4:30, Monday thru Friday. Minimal overtime may be required (10%) to meet schedule milestones and to support technical demands of the job. Regular attendance is a necessity, and adequate arrangements for delegating duties during absences are required.

Other Essential Functions: The ability to work independently with minimal supervision, and to make rational decisions, and to exercise good judgment is essential (100%). Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

Proof of U.S. Citizenship is required.

#ESSCA #ASED #Amentum

Compensation Details

ES5

Benefits Overview

• 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

08/20/2026 - 09/24/2026

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.