Full-Time

Senior Mechanical Engineer

Mechanisms

Updated on 8/23/2026

Orbitfab

Orbitfab

51-200 employees

In-space refueling service and propellant depots

Compensation Overview

$125k - $173k/yr

No H1B Sponsorship

Lafayette, CO, USA

Hybrid

Three to five days on-site per week required in Lafayette, Colorado.

US Citizenship Required

Bachelor's

Category
Mechanical Engineering (1)
Required Skills
Nastran
CAD
Python
MATLAB
Robotics

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Requirements
  • A bachelor's degree in Aerospace Engineering, Mechanical Engineering, or another related discipline is required.
  • At least 5 years of experience in mechanism or robotics design, fabrication, and/or testing is required.
  • Proficiency in computer-aided design is required.
  • Experience taking a product from concept through operation is required.
  • Knowledge of space-rated materials and material-selection design tradeoffs is required.
  • Strong knowledge of geometric dimensioning and tolerancing, materials selection, and manufacturing methods is required.
  • The candidate must be able to work effectively both autonomously and in a multidisciplinary team.
  • The candidate must be able to manage multiple priorities in a fast-paced small-company environment.
  • The candidate must be willing and able to work a hybrid schedule of three to five days per week on-site in the Lafayette, Colorado office.
  • Applicants must be U.S. Persons as defined by applicable export-control regulations.
  • Access to technology, technical data, or software subject to U.S. export-control restrictions under the International Traffic in Arms Regulations is required.
Responsibilities
  • Own the design and analysis of space mechanisms.
  • Ideate and prototype solutions to design problems.
  • Develop and maintain detailed computer-aided design models, design documentation, and manufacturing drawings.
  • Perform analysis verification for designs and evaluate compliance with expected environments.
  • Coordinate with the Systems Engineering team to integrate mechanism systems with mission objectives and electrical and fluid subsystems.
  • Rapidly iterate on designs to inform product direction and support system-level trade studies.
  • Apply design for manufacturability and design for assembly principles to improve manufacturing efficiency.
  • Manage the product lifecycle through qualification testing.
  • Drive product delivery timelines with program-management support and ensure high-quality, timely outputs.
  • Identify and address technical challenges.
  • Communicate effectively with team members and customers.
  • Maintain productive working relationships.
Desired Qualifications
  • At least 10 years of experience in mechanism design, fabrication, and/or testing is preferred.
  • Experience with SolidWorks, NASTRAN, MATLAB, and programming languages such as Python is preferred.
  • Experience with the space environment, spacecraft, or launch-vehicle operations is preferred.
  • Experience designing complex mechanisms, including robotic actuators, is preferred.
  • An advanced degree in an engineering discipline or related field is preferred.
  • Proven ability to manage complex projects is preferred.

OrbitFab provides in-space refueling for satellites by deploying propellant depots and using reusable fuel shuttles to create an orbital gas-station network. In practice, propellant such as hydrazine is stored in orbit and delivered to customers’ satellites on demand, with revenue from selling propellant and contracts with operators including the U.S. Space Force starting in 2025. It differentiates itself by building an end-to-end orbital supply chain for propellant and logistics, rather than only servicing satellites, enabling a scalable, recurring fuel infrastructure. Its goal is to establish a practical, ongoing in-space propellant supply system that increases satellite utility and supports broader space industries like manufacturing and tourism.

Company Size

51-200

Company Stage

Series B

Total Funding

$86.5M

Headquarters

Lafayette, Colorado

Founded

2018

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Simplify Jobs

Simplify's Take

What believers are saying

  • Peter Shaper joined July 7, 2026, bringing satellite-services operating experience.
  • Three demo missions over 18-24 months could unlock over $40 million in contracts.
  • July 2025 ESA funding and 2026 Shilling mission validate xenon and hydrazine expansion.

What critics are saying

  • Mid-2026 Tetra-5 refueling failure would stall customer adoption and backlog conversion.
  • Orbit Fab still needs a $30 million to $50 million Series B for 2027 demos.
  • Daniel Faber stepped aside March 13, 2026, raising execution risk during commercialization.

What makes Orbitfab unique

  • RAFTI standardizes satellite refueling ports across GEO, defense, and commercial spacecraft.
  • Orbit Fab signed ESA ARTES funding July 2025 for telecom refueling architecture.
  • Its first U.S. Space Force refuel mission targets Tetra-5 in mid-2026.

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Benefits

Health Insurance

Paid Vacation

Flexible Work Hours

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

0%

2 year growth

0%
SpaceNews
Jul 7th, 2026
Orbit Fab raises $25M, appoints new CEO to commercialise satellite refueling

Orbit Fab has appointed Peter Shaper as chief executive and raised over $25 million in interim funding from Stride Capital. The Colorado-based satellite refueling company is transitioning from technology development to commercial operations. Shaper, who has three decades of private equity experience, previously led satellite services companies CapRock Communications and Speedcast. He aims to commercialise Orbit Fab's RAFTI docking and refueling interface technology. The company has three demonstration missions scheduled for the next 18 to 24 months, designed to refuel government satellites using hydrazine fuel shuttles. These demonstrations could unlock over $40 million in contracts for on-orbit refueling services. Orbit Fab is preparing to raise between $30 million and $50 million in a Series B round later this year. The funding will support at least two demo missions in 2027 and initial commercial contracts, targeting primarily US military customers.

SpaceWatch.Global
Mar 16th, 2026
Orbit Fab raises $20M Series B as CEO steps down amid shift to commercialisation

Orbit Fab has raised $20 million in a Series B round led by Stride Capital as it transitions from developing on-orbit refuelling technology to large-scale commercialisation. The funding will strengthen the company's capital foundation as it enters its next growth phase. Alongside the fundraising, CEO Daniel Faber has stepped down from day-to-day responsibilities. The company has established an Executive Committee to ensure stability and operational continuity during the leadership transition. The round marks a decisive stage in Orbit Fab's evolution as it scales its on-orbit refuelling capabilities.

Orbit Fab
Jul 25th, 2024
UK Pioneers Space Refuelling with £2m for Orbit Fab’s Innovative Technologies - Orbit Fab

Harwell, England – July 22, 2024 Global leader in on-orbit refuelling, Orbit Fab, lands £2m...

SpaceNews
Apr 17th, 2023
Orbit Fab raises $28.5 million

Orbit Fab, a startup developing in-space satellite refueling services, has raised $28.5 million to accelerate work on its first missions.

SpaceNews
Oct 25th, 2022
Orbit Fab secures new investor to support satellite refueling efforts

Orbit Fab, a startup developing infrastructure for in-space refueling of satellites, announced Oct. 25 it lined up a new investor to support those plans.