Spacecraft Mechanical Engineer (Entry-Level) - Millennium Space Systems

Posted 3 Hours Ago
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El Segundo, CA, USA
In-Office
70K-120K Annually
Junior
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
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The Role
Design and configure satellite structures, perform mass properties and first-order structural analyses, support procurement and fabrication, develop structural models, support qualification testing and test design, produce part and assembly drawings, and troubleshoot mechanical design issues while meeting schedule and deliverables.
Summary Generated by Built In
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.
Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space. Our missions have direct impact to global security, like missile warning and Earth observation.
Our team is curious, bold and innovative. We take risks, innovate and explore new techniques and technologies. We influence change because we challenge the status quo. And when we watch our satellites launch, we know each one of us made it happen.
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

Millennium is DDTC-registered, ITAR-compliant Company. This position is located at a facility that requires special access. Applicants MUST be U.S. citizens and eligible for a security clearance. Additionally, applicants must be willing to apply for and maintain a security clearance. We encourage all interested candidates to apply for any open position for which they feel they are qualified
Applications for this position will be accepted until Jul. 06, 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 and/or 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.

Skills Required

  • Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field
  • 1-5 years experience with SolidWorks or equivalent 3D CAD package
  • 1-2 years hands-on fabrication experience (hobby projects, classwork, or design clubs included)
  • Familiarity with mechanical design of spacecraft including materials, environments, and manufacturing processes
  • U.S. Citizenship required (export control and security clearance eligibility)
  • Ability to obtain and maintain U.S. Security Clearance (interim and/or final U.S. Secret Clearance post-start required)
  • Ability to work 100% onsite at listed facility locations
  • 1-3 years experience with mechanical design
  • Ability to design, develop, implement, and test structural systems and/or mechanism designs
  • Clear communication and organizational skills
  • Active TS/SCI clearance

What the Team is Saying

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Boeing Compensation & Benefits Highlights

  • Retirement Support Boeing states a dollar‑for‑dollar 401(k) match on the first 10% of pay for most nonunion U.S. employees with immediate vesting and an annual true‑up, and a student‑loan match feature lets qualified loan payments count toward earning the company match. Union agreements specify strong but different retirement contributions (e.g., automatic company contributions plus matching under IAM terms).
  • Parental & Family Support The company advertises 12 weeks of fully paid parental leave for birth, adoption, surrogacy, or foster placement, alongside adoption and surrogacy reimbursement programs. Back‑up family care resources are also highlighted in benefits materials.
  • Healthcare Strength Comprehensive health and insurance benefits are emphasized, with eligibility generally beginning the first day of the month after hire. Many teammates are eligible for several programs on day one.

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The Company
HQ: Arlington, VA
170,000 Employees
Year Founded: 1916

What We Do

A leading global aerospace company and top U.S. exporter, Boeing develops, manufactures and services commercial airplanes, defense products and space systems for customers in more than 150 countries. Our U.S. and global workforce and supplier base drive innovation, economic opportunity, sustainability and community impact. Boeing is committed to fostering a culture based on our core values of safety, quality and integrity.

Why Work With Us

Aerospace protects and connects people, enables economic growth and trade, provides humanitarian relief and allows for human exploration of space. Boeing collaborates globally to support responsible growth for our industry, and we invest in innovation that improves the efficiency and sustainability of air travel and our operations.

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