Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal Mechanical Engineer

$142k - $189k

Roman Health Pharmacy LLC

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are looking to add a Principal Mechanical Engineer to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing space hardware for leading-edge communications satellites, we would like to hear from you.

In this position, you will be responsible for leading a team of engineers responsible for mechanical aspects of CesiumAstro spacecraft, subsystems, and interfaces through all phases of the development process. The ideal candidate will be versatile and proficient in mechanical design, electronics packaging, computer-aided design (CAD), mechanical interfaces, thermal architecture, deployable and actuated structures, and environmental qualification of spacecraft. You will use these skills to effectively direct, mentor, and grow a team of upcoming engineers in the design of a novel satellite.

As a CesiumAstro spacecraft team lead and responsible mechanical authority, you will manage a small team to develop satellites and put them in orbit. You will be responsible for delivering robust mechanical designs from concept through space flight including requirements definition, architecture trades and block diagrams, analysis, manufacturing, assembly, testing, qualification, and in-orbit support. In this role you will also collaborate closely with GNC, EPS, CDH, Payload, RF, Systems, and AI&T teams.

The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
  • Bachelor of Science (BS) or Master of Science (MS) degree in Mechanical or Aerospace Engineering from an accredited university or institution.
  • 11 years of experience in communications satellite structures and mechanisms design from concept design to decommissioning across multiple programs.
  • At least 5 years of experience leading technical teams.
  • Significant contributions to multiple flight missions, plus lead ownership of one or more full mechanical development cycles at the space vehicle level.
  • Ability to support subsystem leads with clear mechanical interfaces and cross-functional alignment.
  • Hands-on experience in satellite and large instrument AI&T that leads directly to design implementation.
  • Strong opinions on the meaning of engineering rigor and lean process.
  • Experience including failure and recovery of mechanism operations in test and in operations, as well as loss of mission due to mechanism failure (experience with success as well!).
  • At least one experience with a structural failure in environmental test and recovery from that failure.
  • Strong fundamentals including mechanics of materials, hand calcs, and engineering rules of thumb.
  • Experience in conducting architectural trade studies including parametric and first-order cost and physical analysis.
  • Experience as a reviewer for structural and thermal analysis to ensure designs meet requirements and manufacturability needs.
  • Experience with professional mechanical and FEA CAD tools, such as SolidWorks Simulation, Ansys, and Nastran.
  • Design and build for manufacturing and cost.
  • Expertise in CNC manufacturing and GD&T as evidenced by ability to implement and critique mechanical drawings.
  • Experience with design and manufacturing of composite sandwich panels including an understanding of the trades and benefits of each in satellite structures.
  • Experience in designing spacecraft primary and secondary structures in a variety of materials.
  • Familiarity with design for test, manufacturability, assembly, and reliability.
  • Familiarity with spacecraft AI&T.
  • Hands-on experience supporting environmental test campaigns (vibe, shock, TVAC).
PREFERRED EXPERIENCE
  • Experience including LEO, GEO, and beyond.
  • Experience ranging from CubeSats and SmallSats to large GEO satellites.
  • Python or other scripting capability
  • Experience with two or more spacecraft structural and mechanical architectures which drives your vision for the next generation of spacecraft.

$142,000 - $189,000 a year

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard torace, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

#J-18808-Ljbffr
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Principal Mechanical Engineer in Westminster, CO vacancy
  • $167.1k - $229.76k

     ...‑ready throughout space. We are mission-driven, and together, we are an extraordinary team. About the Role The Principal Mechanical Engineer role focuses on applying advanced technical principles, theories, and concepts to engineering projects, as well as contributing... 
    Suggested
    Contract work
    Work experience placement

    3M HEALTHCARE

    Louisville, CO
    2 days ago
  •  ...Principal Mechanical Engineer Performance Drone Works (PDW) is building the next generation of tactical robotic systems used across defense, national security, and public safety missions. We are building a new center of engineering excellence to design our new category... 
    Suggested
    Work experience placement
    Work at office
    Flexible hours

    Performance Drone Works

    Denver, CO
    21 hours ago
  • $152.69k - $210.23k

     ...Principal Mechanical Engineer Play an integral role in delivering complex energy, chemicals, and resources projects that shape the future of industry. As a senior technical leader within Worley, you will provide mechanical engineering expertise across the full project... 
    Suggested
    Work at office
    Remote work
    3 days per week

    Worley Group, Inc

    Denver, CO
    5 days ago
  • $158k - $189k

     ...actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. We are seeking a Mechanical Engineering Manager to lead our mechanical engineering organization, providing both people leadership and technical direction across... 
    Suggested
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    Roman Health Pharmacy LLC

    Westminster, CO
    2 days ago
  • $160k - $180k

     ...performing team that believes in each other, come build with us at Crusoe. About This Role: Crusoe is looking for a Mechanical Engineering Manager to own the day-to-day technical execution of our mechanical engineering team. Reporting to the Sr. Engineering... 
    Suggested
    Temporary work

    Crusoe

    Arvada, CO
    a month ago
  •  ...connectivity solutions.   We are actively seeking a passionate, collaborative, energetic, and forward-thinking Associate Mechanical Engineering Manager to join our Communication Systems business in Westminster, Colorado.  In this role, you will provide functional... 
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    CesiumAstro

    Westminster, CO
    2 days ago
  • $307k - $427k

     ...next generation global fleet planning, defining a multi-year engineering roadmap to deliver 10x more data center capacity with ML, compute...  ...and dedicated accelerators spread across all continents. As Principal Engineer, you will own the architectural outlook and end-to-end... 

    Google

    Thornton, CO
    3 days ago
  • $150k - $180k

     ...Technologies, Inc. has been a leading provider of engineering, automation, and systems integration...  ...here: .OverviewJoin our team as a Principal DeltaV Automation Engineer!Matrix...  ...hazardous locations, inclement weather, moving mechanical parts, noise, ladders, uneven ground,... 
    Full time
    Work at office
    Local area
    Immediate start
    Remote work
    Work from home
    Flexible hours

    Matrix Technologies

    Westminster, CO
    4 days ago
  • $90k - $130k

     ...making a difference in the world and our environment through engineering for over 60 years with our headquarters located in Lakewood,...  ...culture. Essential Job Responsibilities Design mechanical systems for commercial buildings (project size will vary based... 
    Full time
    Temporary work
    Work at office
    Local area
    Flexible hours

    RMH Design Group

    Lakewood, CO
    2 days ago
  •  ...Description We are seeking an experienced Sr. Mechanical Engineering Manager to lead our mechanical engineering team while remaining actively engaged in technical project work. This role is ideal for a seasoned mechanical professional who enjoys developing teams, solving... 
    For contractors
    Local area
    Flexible hours

    Citrine Inc

    Denver, CO
    2 days ago
  • $130k - $180k

     ...Project Manager/Senior Mechanical EngineerAt EXP, we know that great experiences start with the right people. We believe that work should...  ...your future?Be our next Project Manager/Senior Mechanical Engineer!Your work environment at EXPEXP is currently searching for a Project... 
    Full time
    For contractors
    Work at office

    EXP

    Denver, CO
    3 days ago
  •  ...roles offer wide ranging opportunities to have a demonstrable impact and enable a bustling space economy. Role: As the Mechanical Engineering Manager, you would lead the mechanical team from concept designs to producing flight-ready hardware. We have multiple... 
    Permanent employment
    Work at office
    Flexible hours
    3 days per week

    Rippling

    Lafayette, CO
    2 days ago
  • $130k - $150k

     ...your recruiter to learn more. Base pay range $130,000.00/yr - $150,000.00/yr Direct message the job poster from Engtal Lead Mechanical Engineer (HVAC Design) Summary A growing, mission-driven engineering firm is seeking a Lead Mechanical Engineer to oversee HVAC and plumbing... 
    Full time
    For contractors
    Casual work
    Flexible hours

    Engtal Inc

    Denver, CO
    5 days ago
  • $145.56k - $200.15k

     ...leading the development, implementation, and management related to Mechanical Ground Support Equipment (MGSE) and tooling throughout their...  ...Management Lead, manage, and mentor a team of approximately 8 engineers, fostering a culture of excellence and continuous improvement.... 
    Full time
    Contract work

    Sierra Space

    Louisville, CO
    10 hours ago
  • $110k - $150k

     ...Project Manager/Senior Mechanical Engineer At EXP, we're driven to provide innovative solutions for the world's built and natural environments. As a team of engineers, architects, designers, scientists, creators and a community of professionals, we bring diverse and... 
    Full time
    Work at office

    EXP

    Denver, CO
    2 days ago
  • $100k - $175k

     ...great quality of life inside and outside of work.Job Title:Senior Mechanical Design EngineerReporting To:Head, Engrg. Sect.Work Schedule:...  ...Space Vehicles Group is looking for a SrMechanical Design Engineer to design, update, and support the development of our existing... 
    Full time
    Relocation package
    Monday to Friday
    Flexible hours

    Moog

    Arvada, CO
    3 days ago
  •  ...details below.The RoleEngineering Operations is building a common operating system for how Engineering plans, designs, delivers, and demonstrates evidence of completion.As the Principal Program Manager for Engineering Operations, you will define and evolve the operating... 
    Permanent employment
    Full time
    Live in
    Local area

    Maxar Technologies

    Westminster, CO
    3 days ago
  • $158k - $200k

     ...seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. We are looking to add a  Principal RF Test Engineer II to our team. If you enjoy working in a startup environment, and are passionate about developing critical test systems... 
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    Cesiumastro

    Westminster, CO
    a month ago
  • $85k - $120k

     ...Short Description Bowman has an opportunity for a Mechanical Engineer III to join our team in Westminster, CO. At Bowman, we believe in creating opportunities for aspiring people to thrive and achieve ambitious goals. That's why a career at Bowman is more... 
    Hourly pay
    Casual work
    Work at office

    Bowman Consulting Group, Ltd.

    Westminster, CO
    2 days ago
  • $84.4k - $105.7k

     ...Mechanical Engineer II Headquartered in Arvada, Colorado, Sundyne is a leading manufacturer of highly reliable and efficient centrifugal pumps and compressors for use in the oil and gas, petrochemical, chemical, power generation and water processing industries. The... 
    Permanent employment
    Temporary work
    Work experience placement
    Worldwide
    Flexible hours

    Honeywell Technologies

    Arvada, CO
    4 days ago
  • $75k - $95k

     ...Short Description Bowman has an opportunity for a Mechanical Engineer II to join our team in Westminster, CO. At Bowman, we believe in creating opportunities for aspiring people to thrive and achieve ambitious goals. That's why a career at Bowman is more than a job... 
    Hourly pay
    Work at office

    Bowman

    Westminster, CO
    3 days ago
  • $100k - $160k

     ...Senior Mechanical Engineer Westminster, Colorado ALTEN Technology USA is an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,00... 
    Permanent employment
    For contractors
    Remote work

    ALTEN Technology USA

    Westminster, CO
    1 day ago
  • $150k - $175k

     ...Position Title: Senior Mechanical Engineer FLSA Status: Exempt Department: Engineering Date: 2026 Reports to: Engineering Manager Location: Westminster, CO Wage Range: $150,000 - $175,000 + annual discretionary bonus Application close date: September... 
    Temporary work
    For contractors
    Work at office
    Local area

    MTech Mechanical

    Westminster, CO
    4 days ago
  • $84.4k - $105.7k

     ...company who delivers fluid handling equipment and services to many of the world's most critical process industries. We provide highly engineered, configured-to-order products for the petrochemical, chemical, and oil and gas industry. This position provides... 
    Permanent employment
    Temporary work
    For contractors
    Work experience placement
    Worldwide
    Flexible hours

    Kornferry Honeywell

    Arvada, CO
    4 days ago
  • $104k - $140k

    Senior Mechanical HVAC Engineer ABOUT USMatrix Technologies, Inc. has been a leading provider of engineering, automation, and systems integration services since 1980. Guided by 'The Matrix Way,' we value teamwork, collaboration, and fun. Recognized as a Top Workplace,... 
    Full time
    Temporary work
    For contractors
    Casual work
    Work at office
    Local area
    Immediate start
    Work from home
    Flexible hours

    Matrix Technologies

    Westminster, CO
    1 day ago
  •  ...dedicated to creating a permanent presence in space while also driving positive impacts here on Earth. We are currently seeking a Principal RF Engineer to contribute to our mission in a dynamic startup environment. As a Principal RF Engineer, you will serve as the company’s... 
    Permanent employment
    Work at office
    Remote work
    Monday to Friday

    Lunar Outpost

    Arvada, CO
    3 days ago
  •  ...seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. We are looking to add a Principal Component Engineer I to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge... 
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    CesiumAstro

    Westminster, CO
    21 days ago
  • $93k - $123k

    We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration...  ...employees feel valued, supported, and inspired to grow. As a Mechanical Engineer you will be responsible for; Mechanical Design: Design... 
    For contractors
    Work at office
    Local area

    ALTEN Technology USA

    Arvada, CO
    2 days ago
  • $75k - $115k

    Job Description: Mechanical Engineer Compensation: $75K—$115K yearly (with performance bonus). Schedule: Mon‑Fri 8:00AM to 5:00PM. Benefits: Health, Vision, Dental, PTO, 401K, Life insurance, etc. We are seeking a Mechanical Engineer to join our team, focused on the design... 

    AtWork Group

    Arvada, CO
    1 day ago
  • Kforce has a client in Wheat Ridge, CO that is seeking a Senior Mechanical Design/Sustaining Engineer. About the Opportunity: A growing engineering technology company is seeking a Senior Mechanical Design/Sustaining Engineer to support a diverse portfolio of precision... 
    Full time
    Work experience placement
    Flexible hours
    Wheat Ridge, CO
    14 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Mechanical Engineer. Be the first to apply!