Millennium Space Systems, A Boeing Company

Spacecraft Thermal Engineer (Experienced/Senior)

Thermal - El Segundo, CA - Full Time

Company Overview

Millennium Space Systems, A Boeing Company delivers affordable, high-performance space systems for demanding customers. At Millennium, you will be part of a close-knit team working on exciting technological problems. We work in an open environment where ideas are shared across all disciplines, and there are ample opportunities for advancement based on demonstrated excellence. Superstars are welcome.

At Millennium, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute to work that matters with a company where diversity, equity, and inclusion are core values. 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.

Job Summary

Thermal Engineers support the Spacecraft Development Program Managers and Chief Systems Engineer through the development of all spacecraft thermal system configurations, designs, analyses, testing, and flight operations. Spacecraft thermal subsystem elements includes all passive and active means of controlling the satellite’s system, subsystem, and component environments within both operating and survival limits during all pertinent system lifetime activities. Thermal engineers also have the opportunity to support MLI blanket design, fabrication, and installation.

This position’s internal job code is Mechanical System Design & Analysis Engineer. Our team is currently hiring for a level 3-6. 

Responsibilities

  • Perform spacecraft thermal design and analyses at the board, component, subsystem, and system level 
  • Develop systems and spacecraft element thermal models to predict thermal loads, impacts, and temperature margins to support system design
  • Brief design and analysis materials to program managers, customers, and/or sponsors
  • Identify all materials, processes, and facilities to achieve a qualified spacecraft thermal design and operation
  • Assists in proposal and new business development efforts
  • Support thermal verification testing on spacecraft systems and components including test design, test conduct, data reduction, analysis, and reporting 
  • Support the development of tools to aide in conceptual designs and post-processing analysis
  • Potential to cross-train with MLI team for hands-on support

Minimum Qualifications

  • Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Physics, or other relevant fields
  • 5 or more years of experience in the design, development, analysis, implementation, testing, and/or operation of spacecraft thermal systems or other related complex thermal systems
  • Proficiency with thermal analysis tools (e.g. Thermal Desktop, SINDA/FLUINT, ANSYS, Thermica)
  • Ability to obtain and maintain a TS/SCI Security Clearance 

Preferred Qualifications

  •  Active TS/SCI clearance 

Summary Pay-Range

  • Level 3: $102,000 - $150,000. 
  • Level 4: $124,000 - $182,500
  • Level 5: $146,200 - $215,000
  • Level 6: $178,500 - $262,500

Benefits

Millennium Space Systems, A Boeing Company offers a very competitive benefits package to include medical, dental, vision, and 401k plan. Relocation assistance to Southern California can be provided.

Before applying, please note:

Millennium is a 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 are proud to be an Affirmative Action/Equal Opportunity Employer. We encourage veterans, disabled veterans and disabled individuals to apply for any open position for which they feel they are qualified.

Applicant Privacy Policy

Mandatory Security Clearance and Access Process Disqualifying Criteria

Apply: Spacecraft Thermal Engineer (Experienced/Senior)
* Required fields
First name*
Last name*
Email address*
Location
Phone number*
Resume*

Attach resume or Paste resume

Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or paste resume

Paste your resume here or attach resume file

Cover Letter*
Who referred you to this position? Enter their first and last name here.
Desired salary*
Are you a U.S. citizen?*
Do you claim dual citizenship with a country other than the U.S.?*
Do you have an active SCI, Secret or Top Secret clearance?*
Question 1 : This question determines current employment with any government or military. You should answer "Yes" if you meet any of the following conditions:
• Currently employed by a government entity, worldwide (country, state, province, municipality, local, etc.) at the pay grade of or equivalent to the United States (U.S.) Office of Personnel Management (OPM) General Schedule level GS-13 or above; or
• Currently serving in or employed by a military service, worldwide (including active duty, reserves, National Guard, militia, etc.) at or the equivalent to the U.S. military rank of O-5 or above; or
• Currently employed by a state-owned, controlled or operated entity (airline, utility, financial institution, etc.).

Are you currently employed by or serving in any agency, department, office of a government or military branch, as defined in the directions above?*
If yes on Question 1, please provide the following information regarding your current position:
(A) Name of employer
(B) Current military rank (e.g., O-5, Lt. Colonel or Commander) or civilian pay grade (GS-13, SES, WS-16, Senior Staff, etc.)
(C) Title or position
Question 2: This question establishes whether your current employment involves Boeing. You should answer "Yes" if your work involves any of the following conditions:
• Test (e.g. you are a test pilot), acceptance, inspections, safety rulings, or approval of Boeing products or services; or
• Financial responsibilities including work on contracts, procurements, program management, funding decisions, trade issues, claims, and import or export licenses; or
• Audits, investigations, and litigation; or
• Serving as an employee of the U.S. Federal Aviation Administration (FAA), U.S. Defense Contract Audit Agency (DCAA), or U.S. Defense Contract Management Agency (DCMA).

NOTE: You may answer "No" if you are currently:

• An employee of a Boeing subsidiary; or
• Employed as a contractor for Boeing or contract hire through an agency or consulting firm; or
• A pilot with a United States based commercial airline, cargo or charter company flying Boeing products; or
• Performing routine machine maintenance, repairs and service on Boeing Products.

Does your current employment involve Boeing, as defined in the directions above?*
If yes to Question 2, please provide a full explanation
Question 3: This question identifies specific positions or ranks you have held with U.S. organizations.

Have you been employed (full-time or part-time) in any of the positions listed below? If yes, you must select the appropriate options below and complete sub-questions A through D.*
If yes on Question 3, check all that apply.
Question 3 Cont. : If you checked any of the above for Question 3, you must provide:

(A) Name of government agency or military branch
(B) Final military rank (e.g., O-5, Lt. Colonel or Commander) or civilian pay grade (GS-13, SES, WS-16, Senior Staff, etc.)
(C) Title or position for all jobs
(D) Date of separation from your government or military employment
Question 4: This question concerns your service or employment with any non-U.S. entities.
At any time within the last two (2) years, have you been employed as a manager, executive, officer, or controlling shareholder of a non-U.S. airline or aircraft holding company?*
If yes on Question 4, please provide the following information for each position that applies (unless clearly identified and described in your CV or resume)
(A) Name of non-U.S. airline or aircraft holding company
(B) Your position or
(C) Dates of employment for all positions held in the last two (2) years
(D) A brief job description
Question 5: Did you answer "Yes" to Question #4? (In the last two (2) years you were employed in a non-U.S. airline or aircraft holding company?)*
Question 5 Cont: If "Yes", did you or do you still have decision making authority or influence over matters involving Boeing, such as the procurement of products or services or approval for technical acceptance?
Question 6: Within the last five (5) years, have you been employed (full-time or part-time) as an officer or employee, or in any other official capacity on behalf of a public international organization (such as the World Trade Organization, the International Civil Aviation Authority Organization or the World Bank)?*
If yes to Question 6, please provide the following information for each position that applies (unless clearly identified and described in your CV or resume):
(A) Name of the public international organization
(B) Your position or title
(C) Dates of employment for all positions held in the last five (5) years
(D) A brief job description for each position held
Question 7: Within the last five (5) years, have you been employed (full-time or part-time) as an officer or employee, or in any other official capacity on behalf of a non-U.S. government, department, agency or state-owned entity (including a military service or civil aviation authority)?*
If yes to Question 7, please provide the following information for each position that applies (unless clearly identified and described in your CV or resume):
(A) Name of the non-U.S. government, department, agency, or state-owned entity
(B) Your position or title
(C) Dates of employment for all positions held in the last five (5) years
(D) If in the military, your rank or civilian pay grade for all positions you held within the last five (5) years
(E) A brief job description for each position held
Question 8: Within the last five (5) years, have you worked (full-time or part-time) as an officer or employee, or in any other official capacity on behalf of an official of a non-U.S. political party or a candidate for a non-U.S. political office?*
If yes to Question 8, please provide the following information for each position that applies (unless clearly identified and described in your CV or resume):
(A) Name of the
(B) Your position or title
(C) Dates of employment for all positions held in the last five (5) years
(D) A brief job description for each position held
Question 9: Did you answer "Yes" to Questions #6, #7, or #8?*
If yes to Question 9, do you or did you have decision making authority or influence over matters involving Boeing?
Question 9 cont. : If "Yes", briefly describe the type of decision making authority and/or influence you exercised. Please enter 'No' if you did NOT have decision making authority or influence in matters involving Boeing.
Question 10: To the best of your knowledge, do you have a "family member" who currently works for a non-U.S. government, including, a military, state-owned entity or civil aviation authority? (A "family member" includes spouses, parents, step-parents, legal guardians, mothers-in-law, fathers-in-law, children, step-children, siblings, sons-in-law, daughters-in-law, sisters-in-law, brothers-in-law, grandparents, spouse’s grandparents, grandchildren, uncles, aunts, nephews, nieces, and first cousins.)*
If yes to Question 10: If "Yes", please provide the following information:
(A) Name of the family member
(B) Family member’s relationship to you
(C) Name of the non-U.S. government where your family member works
(D) Family member's title or position
(E) A brief job description
Question 11: To the best of your knowledge, do you have a "family member" who currently works for a public international organization (such as the World Trade Organization, the International Civil Aviation Organization or the World Bank)? (A "family member" includes spouses, parents, step-parents, legal guardians, mothers-in-law, fathers-in-law, children, step-children, siblings, sons-in-law, daughters-in-law, sisters-in-law, brothers-in-law, grandparents, spouse’s grandparents, grandchildren, uncles, aunts, nephews, nieces, and first cousins.)*
If yes to Question 11, please provide the following information:
(A) Name of the family member
(B) Family member’s relationship to you
(C) Name of the public international organization
(D) Family member's title or position
(E) A brief job description
Question 12: To the best of your knowledge, do you have a "family member" who currently works for a non-U.S. airline? (A "family member" includes spouses, parents, step-parents, legal guardians, mothers-in-law, fathers-in-law, children, step-children, siblings, sons-in-law, daughters-in-law, sisters-in-law, brothers-in-law, grandparents, spouse’s grandparents, grandchildren, uncles, aunts, nephews, nieces, and first cousins.)*
If yes to Question 12, please provide the following information:
(A) Name of the family member
(B) Family member’s relationship to you
(C) Name of the non-U.S. airline
(D) Family member's title or position
(E) A brief job description
Question 13: Did you answer "Yes" to Questions #10, #11, or #12 (information about your family member)?*
If yes to Question 13, does your family member(s) have decision making authority or influence over matters involving Boeing?
Question 13 cont. : If "Yes", please briefly describe the type of decision making authority and/or influence exercised. Please enter "No" if your family member does NOT have decision making authority or influence in matters involving Boeing.
Question 14: Boeing engages Deloitte, LLP for auditing purposes. This question identifies personal and family connections to Deloitte, LLP. A "close family member" includes a person’s spouse, spousal equivalent, parent, dependent, nondependent child or sibling. "Deloitte, LLP" includes Deloitte LLP, Deloitte and Touche LLP, Deloitte Tax LLP, Deloitte FAS LLP, and Deloitte Consulting LLP, as well as any affiliates of such entities.

At any time within the last three (3) years from today’s date, have you or a "close family member" been employed (full-time or part-time) by Deloitte, LLP?*
If yes to Question 14, you must provide the following information for each person and position(s) held:
(A) Name of person(s) employed by Deloitte, LLP (including yourself)
(B) Family member’s relationship to you
(C) Position(s), title(s), and level(s)
(D) Start and end date(s)
Question 15: Did you answer "Yes" to Question #14?*
If yes to Question 15, please briefly describe the professional services you or the close family member provided to Boeing while employed by Deloitte, LLP within the last three (3) years.
Question 16: Describe how you found out about this job. For example, did you receive a referral or are you responding to an advertisement or a call from a recruiter? If you received a referral, please explain who referred you, your relationship, and how the referral came about.
Do you have a degree in Mechanical Engineering, Aerospace Engineering, Physics, or other relevant fields?*
Do you have 5 or more years of experience in the design, development, analysis, implementation, testing, and/or operation of spacecraft thermal systems or other related complex thermal systems?*
In 150 characters or fewer, tell us what makes you unique:*
What is your level of interest in cross-training to support MLI design, fabrication, and installation? Answer 1-5 (1 = No Interest, 5 = High Interest)*
Do you have the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. (More information on this process can be found by following the Mandatory Security Clearance and Access Process Disqualifying Criteria link which is listed in the job posting).**
The following questions are entirely optional.
To comply with government Equal Employment Opportunity and/or Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law. Your voluntary cooperation would be appreciated. Learn more.
Gender
Race/Ethnicity
Invitation for Job Applicants to Self-Identify as a U.S. Veteran
  • A “disabled veteran” is one of the following:
    • a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
    • a person who was discharged or released from active duty because of a service-connected disability.
  • A “recently separated veteran” means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
  • An “active duty wartime or campaign badge veteran” means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
  • An “Armed forces service medal veteran” means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.
Veteran status
I IDENTIFY AS ONE OR MORE OF THE CLASSIFICATIONS OF PROTECTED VETERAN LISTED ABOVE
I AM NOT A PROTECTED VETERAN
I DON’T WISH TO ANSWER
Voluntary Self-Identification of Disability
Voluntary Self-Identification of Disability Form CC-305
OMB Control Number 1250-0005
Expires 04/30/2026
Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Please check one of the boxes below:
YES, I HAVE A DISABILITY, OR HAVE HAD ONE IN THE PAST
NO, I DO NOT HAVE A DISABILITY AND HAVE NOT HAD ONE IN THE PAST
I DO NOT WANT TO ANSWER

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

Name Date
Human Check*