Marvel Fusion
Energy & UtilitiesDirect Greenhouse career site

Mechanical Engineer (f/m/x)

Pay
$100,000 – $148,256 per year
Location
Fort Collins, CO · On-site
Job type
Full-time
Level
Mid-level
Listed
31 days ago

Skills & highlights for this role

  • CAD modeling (SolidWorks or Inventor)
  • FEA vibration analysis
  • thermal-mechanical simulation
  • precision kinematics

The impact you will make

We are looking for a highly capable Mechanical/ Optomechanical Engineer to join our team and take the lead in designing and optimizing large, ultra-stable optical mounts for high-energy, ultra-short-pulse laser systems. This role requires expertise in mechanical design, vibration and thermal analysis and precision kinematics. You will collaborate closely with optical physicists and systems engineers to ensure the structural stability and adjustability of critical laser components under demanding operating conditions.

Your responsibilities

  • Design and optimize large optical mounts capable of maintaining micron/sub micron positioning and high angular stability under thermal loads, mechanical vibrations and environmental changes
  • Perform and interpret modal, harmonic, and random-vibration/PSD analyses to identify structural resonances and predict optical displacement and angular stability under realistic environmental excitation.
  • Translate thermal results into optomechanical performance, evaluating how temperature changes and gradients influence mirror displacement, tip/tilt, surface deformation, optical alignment, and wavefront quality.
  • Optimize structures for high eigenfrequencies and low vibration sensitivity while maintaining appropriate mass, manufacturability, accessibility, and adjustment capability.
  • Select appropriate materials based not only on mechanical strength but also on CTE, thermal conductivity, stiffness-to-mass ratio, dimensional stability, vacuum compatibility, and optical-system requirements.
  • Select and integrate precision adjustment components including threads, springs, flexures, bearings, actuators, motors, and precision stages, considering load capacity, stiffness, resolution, backlash, repeatability, and stability.
  • Use CAD tools and mechanical modeling software to develop and iterate on designs in collaboration with physicists and systems engineers
  • Support prototype testing and correlate FEA predictions with displacement, vibration, thermal, and alignment measurements.

What you bring

  • Proven experience designing large, stable optical mounts or optomechanical assemblies for high-energy laser systems
  • Strong understanding of precision mechanical design and kinematics, including spatial and angular degrees of freedom, stiffness, backlash, repeatability, and alignment.
  • Experience with thermal and thermo-mechanical simulation, including temperature gradients, thermal expansion, heat transfer, cooling concepts, and resulting structural deformation.
  • Good understanding of engineering materials and their relevant properties, including CTE, stiffness, thermal conductivity, dimensional stability, and vacuum compatibility.
  • Proficiency in CAD and mechanical modeling (e.g. SolidWorks, Inventor or similar), including thermal and vibrational analysis techniques
  • Ability to translate optical requirements into mechanical, thermal, positioning, and stability requirements and work effectively with optical engineers, physicists, controls engineers, and manufacturing teams.

What sets you apart

  • Direct experience with high-energy, high-power, or ultra-short-pulse laser systems, particularly compressors, stretchers, large mirrors, gratings, or beam-transport systems.
  • Experience designing optomechanical systems requiring micron/sub-micron positional precision and µrad or sub-µrad angular stability.
  • Understanding of how mechanical and thermal effects translate into optical performance, including wavefront distortion, mirror deformation, pointing stability, and alignment drift.
  • Experience with advanced simulation methods such as coupled thermal-structural analysis, harmonic response, and PSD/random-vibration analysis, including correlation with experimental measurements.
  • Hands-on experience with the manufacturing, assembly, alignment, testing, and validation of large precision optical systems.

Pay and benefits

The pay range for this position is: $100,000 - $148,256 per year.

The above pay scale reflects the broad, minimum to maximum, pay scale for this job code for the location for which it has been posted. Even more importantly, please note that salary is only one component of total compensation at Marvel Fusion. Final compensation will be determined based on factors including experience, qualifications, and location.

Marvel Fusion also offers comprehensive benefits including health insurance (medical, dental, vision), 401(k) matching, paid time off, and parental leave. Candidates may be considered for other positions at Marvel Fusion, and our actual base salary will be determined on an individual basis and may vary depending on job-related knowledge and skills, education, and experience.

The range is published in accordance with the Colorado Equal Pay for Equal Work Act.

What we offer

  • An opportunity to make a huge impact on the future of our planet by making clean, safe, and abundant energy possible.
  • Flexible working hours-wise and work environment.
  • A highly competitive compensation and benefits package including:
  • Premiere Health, Dental, and Vision insurance for employees and their families
  • Short-term and Long-term disability
  • 401(k) Pension plan
  • Phone Bill reimbursement
  • Employee Incentive Programm
  • Learning & Development Budget
  • Flexible PTO:
  • 31 days PTO: 21 paid vacation days, up to 10 sick days
  • 11 Company-wide holidays
  • Up to 12 weeks paid parental leave

Who we are

Founded in 2019, Marvel Fusion is Europe's leading fusion energy company, uniting 120 scientists, engineers, and entrepreneurs across our locations in Munich and Colorado.

Backed by over €385 million in public and private funding, we're driven by a shared mission: to deliver clean, abundant energy to the world.

Why Marvel Fusion

By joining us, you will be

  • Solving one of the most complex technological challenges known to humanity, harnessing Fusion on Earth
  • Part of a highly purpose-driven team working on providing the world with clean, safe and abundant energy
  • Working alongside world-leading scientists and entrepreneurs in the field of Fusion
  • Part of a start-up where growth on a company and individual level is the default
Read the original posting

From Marvel Fusion's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

What is the salary for the Mechanical Engineer (f/m/x) role at Marvel Fusion?

The Mechanical Engineer (f/m/x) posting at Marvel Fusion states compensation of $100,000 – $148,256 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Marvel Fusion's official career site.

Where is the Mechanical Engineer (f/m/x) job at Marvel Fusion located?

This Mechanical Engineer (f/m/x) position at Marvel Fusion is located in Fort Collins, CO (On-site). Always check Marvel Fusion's application page for specific state eligibility or relocation policies.

What qualifications are required for Mechanical Engineer (f/m/x) at Marvel Fusion?

For the Mechanical Engineer (f/m/x) role, Marvel Fusion highlights experience with CAD modeling (SolidWorks or Inventor), FEA vibration analysis, thermal-mechanical simulation, precision kinematics. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Mechanical Engineer (f/m/x) position at Marvel Fusion?

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