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Spacecraft Mechanical Engineer (Early-Career) - Millennium Space Systems

Los Angeles, California; El Segundo, California Job ID JR2026489980 Category Engineering - Mechanical & Structural Role Type Onsite Post Date Jan. 02, 2026 Security Clearance Required
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Job Description

At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.

Spacecraft Mechanical Engineer (Early-Career) – Millennium Space Systems

Millennium Space Systems (MSS), a part of Boeing Defense, Space and Security (BDS) is seeking a Spacecraft Mechanical Engineer (Early-Career) to support the Engineering team in El Segundo, CA!

Job Summary
As a Spacecraft Mechanical Engineer, you will be responsible for mechanical design and configuration of satellite structures. The parts and systems you may work on will range from spacecraft primary and secondary structure, to ground support equipment interfaces and integration accommodations, to pointing mechanisms and deployable structures. Your designs will ensure that our space vehicles survive their complete development and operational lifecycles, including prototyping, test, transport, launch, and long-term operations.

This position’s internal job code is Mech Sys Design & Anlys Engr. Our team is currently hiring for levels 1-2.

Responsibilities

  • Perform structural design and configuration tasks necessary to deliver high performance satellite systems

  • Perform first order layout and mass properties analyses

  • Support procurement of materials and components

  • Identify processes, tests, and manufacturing tools necessary to deliver a qualified spacecraft structure and components

  • Work to subsystem schedule and deliverables

  • Develop first-order structural models in support of mechanical design performance predictions

  • Support structural qualification testing on spacecraft systems and components including test design, test conduct, and interface equipment for unit under test

  • Document, analyze, and troubleshoot unexpected discrepancies in mechanical designs

  • Produce part and assembly drawings to facilitate Assembly, Test, and Launch Operations

  • Other duties as assigned

This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. 

Security Clearance and Export Control Requirements

This position must meet Export Control compliance requirements, therefore a “US Person” as defined by 22 C.F.R. § 120.15 is required. “US Person” includes US Citizen, lawful permanent resident, refugee, or asylee.

Minimum Qualifications

  • Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field

  • 1-5 years of experience with SolidWorks or equivalent 3D CAD package

  • 1-2 years of hands-on fabrication experience (personal hobby projects, classwork, or extracurricular design clubs included)

  • Familiarity with mechanical design of spacecraft, e.g. materials, environments, and manufacturing processes

Preferred Qualifications

  • 1-3 years of experience with mechanical design

  • Ability to design, develop, implement, and test structural systems and/or mechanism designs

  • Demonstrate clear communication and organizational skills

  • Active TS/SCI Clearance

Conflict of Interest:

Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process

Drug Free Workplace:

Millennium Space Systems, a Boeing Company, is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Shift:

  • This role will be on 1st shift

Total Rewards:

At Millennium Space Systems, a Boeing Company, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent.  Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.  

Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.  

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary Pay Range:

  • Level 1: $69,700 - $102,500

  • Level 2: $81,600 - $120,000


Applications for this position will be accepted until Feb. 09, 2026


Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Education

Bachelor's Degree or Equivalent Required

Relocation

Relocation assistance is not a negotiable benefit for this position.

Security Clearance

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim U.S. Secret Clearance Pre-Start and final U.S. Secret Clearance Post-Start is required.

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift


Equal Opportunity Employer:

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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Your Benefits

No matter where you are in life, our benefits help prepare you for the present and the future.

  • Generous company match to your 401(k).
  • Industry-leading tuition assistance program pays your institution directly.
  • Fertility, adoption, and surrogacy benefits.
  • Up to $10,000 gift match when you support your favorite nonprofit organizations.
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These programs are subject to eligibility requirements and other conditions, which may differ for employees of certain subsidiaries or business units, or union-represented employees depending on bargaining agreement terms. If this information conflicts with the program documents, the latter shall control. This material is informational only.

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