Mechanical Design Engineer (ES2)

Posted Yesterday
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Huntsville, AL, USA
In-Office
Junior
Security • Cybersecurity
The Role
Provide structural and mechanical design support for flight hardware and spacecraft/payload integration using CAD and PDM systems. Model large assemblies, manage CAD files, support documentation changes, participate in reviews, and collaborate with multidisciplinary and external teams to develop flight hardware for SLS and other spaceflight programs.
Summary Generated by Built In

Create Your Career:

Grow With Us

Your growth matters to us and we offer a variety of ways for you to develop in your career. With professional and leadership development opportunities, education reimbursement, mentoring, and company sponsored networking, you can guide your career path within a company that believes in you.

A Place Where You Belong

People are the heart of our business. Like our country, we are built on a diversity of cultures, backgrounds, and experiences. We expect our people, clients, and partners to treat each other with dignity and respect. This means promoting inclusion, celebrating diversity, and appreciating the differences we bring to our workplace.

Support Your Well-Being

Our comprehensive benefits package includes wellness programs, 11 paid holidays, paid time off, employee perks and much more.  

Our team is comprised of 10 companies working together on one mission, Moon to Mars and then beyond. 

Description

Our Structural & Mechanical Design and Analysis team is a high performing group executing challenging tasks for the insight, design, and analysis of the Space Launch System (SLS) ranging from large structural elements to payload attachment hardware. Our team is tasked with providing support for various other space related missions including the Human Landing Systems (HLS) and much more. This exciting work serves as critical steps in our mission of sending humans to the Moon, Mars and beyond!

We are searching for an engineer to provide structural and mechanical design support for SLS vehicle development focusing on Spacecraft/Payload Integration. This role requires the ability to work independently and as part of an integrated, collaborative team. Responsibilities include:

  • Providing structural and mechanical design support for flight hardware including adapters and secondary structures, secondary payload support, thermal protection system, electrical interfaces, and isolation hardware between vehicle compartments.
  • Modeling large assembly and subassemblies in support of the Space Launch System program as well as other new and existing spaceflight programs.
  • Managing large Computer Aided Design (CAD) files using Product Data Management (PDM) systems. 
  • Providing support for the development, review, and implementation of changes in SLS program documentation. through gathering pertinent information and documentation from appropriate disciplines and presenting to the appropriate governing boards.
  • Participating in reviews, meetings, technical interchange meetings, boards, working groups, and trade studies related to hardware design and development.
     

Qualifications

A degree in Engineering or related field is required (ABET-accredited university preferred). Educational requirements are a bachelor’s degree with 0 to 5 years of experience or a master’s degree with 0 to 3 years of experience. 

Skills and experience should demonstrate:

  • Familiarity with launch vehicle systems
  • Experience with structural design methods, test methodology, material behavior, and fabrication methods.
  • Experience interpreting engineering drawings and design tolerances.
  • Ability use PTC Creo 9.0 or newer to create detailed drawings per ASME Y14.100-2000 and/or Global Drawing Reference Manual.
  • Ability to apply best CAD practices for robust development of PTC Creo 9.0 or newer drawings, assemblies, and models.
  • Ability to use product design definition created with digital product definition/model-based design practices as described in ASME Y14.41.
  • Familiarity with engineering drawing and model review and release processes.
  • Fluency with Geometric Dimensioning and Tolerancing per ASME Y14.5 for drawing development including tolerance stack-up analysis.
  • Experience with PTC Windchill PLM/PDM software to manage and control models and drawings is preferred.
  • Capable of functioning in a multi-disciplinary team of engineers with expertise in aerosciences, manufacturing and producibility, structural test equipment, and test hardware.
  • Capable of working with external teams including main propulsion systems, reaction control systems, quality control, ground support systems, safety, and system engineering and integration.
  • Excellent written and verbal communication skills are required.
  • Proficiency in Microsoft Office Suite competence (Word, Office, Excel, PowerPoint, Teams, and Outlook) is required.

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:

ES2

       

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:

07/01/2026 - 07/30/2026

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.

Skills Required

  • Bachelor's degree in Engineering or related field (ABET-accredited preferred)
  • Master's degree accepted (0 to 3 years experience) or Bachelor's with 0 to 5 years experience
  • Familiarity with launch vehicle systems
  • Experience with structural design methods, test methodology, material behavior, and fabrication methods
  • Experience interpreting engineering drawings and design tolerances
  • Ability to use PTC Creo 9.0 or newer to create detailed drawings per ASME Y14.100-2000 / Global Drawing Reference Manual
  • Apply CAD best practices for PTC Creo drawings, assemblies, and models
  • Use digital product definition/model-based design practices as described in ASME Y14.41
  • Fluency with Geometric Dimensioning and Tolerancing per ASME Y14.5 including tolerance stack-up analysis
  • Experience managing large CAD files using PDM systems
  • Experience with PTC Windchill PLM/PDM software to manage and control models and drawings
  • Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Teams, Outlook)
  • Excellent written and verbal communication skills; ability to work in multidisciplinary teams and with external stakeholders
  • Proof of U.S. Citizenship

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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