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Mechanical Engineer Co Jobs in Renton, WA (NOW HIRING)

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Mechanical Engineer Co information

See Renton, WA salary details

$51.2K

$115.7K

$187.3K

How much do mechanical engineer co jobs pay per year?

As of Sep 9, 2026, the average yearly pay for mechanical engineer co in Renton, WA is $115,720.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,700.00 and $142,300.00 per year, depending on experience, location, and employer.

What does a mechanical engineer co do?

A Mechanical Engineer Co-op, or Cooperative Education student, works alongside professional engineers to gain practical experience while still in school. They assist in designing, testing, and improving mechanical systems, and may also help with drafting, research, and troubleshooting. This role provides hands-on exposure to real-world engineering challenges, allowing students to apply classroom knowledge to industry projects and develop valuable technical and teamwork skills.

What types of projects and responsibilities can a mechanical engineer co expect to handle during their typical workweek?

As a Mechanical Engineer Co., you can expect to work on a variety of projects that may include product design, prototyping, conducting simulations, and supporting testing processes. Your responsibilities often involve collaborating with senior engineers, drafting technical drawings, and participating in team meetings to solve engineering challenges. The role provides a mix of hands-on tasks and computer-aided design work, offering valuable exposure to different phases of the engineering development cycle. This experience not only enhances your technical skills but also helps you build strong teamwork and communication abilities, which are essential for career progression.

What are the key skills and qualifications needed to thrive as a mechanical engineer co, and why are they important?

To thrive as a Mechanical Engineer, you need a solid background in engineering principles, mathematics, and physics, typically supported by a bachelor's degree in mechanical engineering or a related field. Familiarity with CAD software (such as SolidWorks or AutoCAD), FEA analysis tools, and relevant industry certifications like EIT or PE is often required. Strong problem-solving skills, teamwork, and effective communication help you excel in multidisciplinary project environments. These skills and qualifications ensure you can design, analyze, and implement mechanical systems that meet safety, efficiency, and innovation standards.

What is the difference between Mechanical Engineer Co vs Mechanical Designer?

AspectMechanical Engineer CoMechanical Designer
Required CredentialsBachelor's in Mechanical Engineering, PE license (optional)Associate's or Bachelor's in Mechanical Design or related field
Work EnvironmentDesign, analysis, testing in engineering firms or manufacturingDrafting, CAD modeling in design departments
Employer & Industry UsageEngineering consulting, manufacturing, aerospaceProduct design, CAD firms, manufacturing

Mechanical Engineers Co focus on designing, analyzing, and testing mechanical systems, often requiring engineering credentials. Mechanical Designers primarily create detailed CAD models and drawings, typically with design-focused education. Both roles work in manufacturing and design environments but differ in scope and responsibilities.

How much does a mechanical engineer co make?

The average salary for a mechanical engineer in Colorado is approximately $75,000 to $95,000 per year, depending on experience, education, and the specific industry. Entry-level positions typically start around $65,000, while experienced engineers can earn over $100,000. Certifications such as Professional Engineer (PE) can also influence salary levels.

Which company hires mechanical engineers?

Many companies across industries hire mechanical engineers, including manufacturing firms, aerospace companies, automotive manufacturers, and energy providers. These roles often require skills in CAD software, thermodynamics, and project management, and may involve working in design, testing, or production environments.

What cities near Renton, WA are hiring for Mechanical Engineer Co jobs?

Cities near Renton, WA with the most Mechanical Engineer Co job openings:

Mechanical Engineer Co jobs near you
Infographic showing various Mechanical Engineer Co job openings in Renton, WA as of August 2026, with employment types broken down into 89% Full Time, 8% Part Time, 2% Contract, and 1% Nights. Highlights an 96% Physical, 1% Hybrid, and 3% Remote job distribution, with an average salary of $115,720 per year, or $55.6 per hour.

Mechanical Engineer - Active Cooling

Kent, WA • On-site

Aetherflux
See more jobs at Aetherfluxexternal

Full-time

Dental, Vision, Retirement, PTO

Posted 25 days ago

Key responsibilities

  • Own the design of the spacecraft liquid cooling loop for GPU compute hardware from concept through flight, including component selection and mechanical packaging.

  • Perform analyses to size the cooling system and predict its behavior across the mission profile, ensuring performance and reliability.

  • Design, build, and operate ground testbeds and develop qualification and acceptance test programs to verify flight-worthiness.

Job description

About Cowboy Space Corp.
Cowboy Space Corp. is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from powering on-orbit compute, to transmitting energy via infrared lasers (space-to-earth and space-to-space), powering on-orbit compute to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth.
Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Cowboy Space Corp. is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure.
The Role
As a Mechanical Engineer - Active Cooling, you will be the responsible engineer for the liquid cooling loop that keeps our on-orbit GPU compute hardware temperature controlled. This is a hands-on role that sits at the intersection of fluid systems and mechanical design. You will architect the pumped coolant loop, select and size its component (pumps, valves, accumulators, cold plates, instrumentation, etc) and own the mechanical packaging, structures, and interfaces that integrate it into the spacecraft. You will own this hardware end to end, from concept and analysis through the ground testbeds used to prove it out, qualification, and on-orbit operation.
You will work closely with thermal, power, structures, avionics, propulsion, and software teams to deliver an integrated cooling solution. We're looking for a strong fluids background paired with strong mechanical design skills. Someone who can move quickly, iterate often, and take full ownership of hardware that directly determines whether our compute payload survives and performs in orbit.
Responsibilities
  • Own the design of the spacecraft liquid cooling loop for GPU compute hardware from concept through flight, including cold plates, pumps, valves, accumulators, heat exchangers, tubing, fittings, and instrumentation.
  • Perform pressure-drop, flow, and thermal-fluid analyses to size the loop and predict system behavior across the full mission profile, balancing heat rejection, pump power, mass, and reliability.
  • Design the mechanical packaging, structures, mounts, and mechanisms that house and integrate the cooling loop, and couple it to radiators and the broader thermal control system.
  • Design, build, and operate ground testbeds and dev rigs to characterize components, validate the loop, and de-risk the flight design ahead of qualification.
  • Develop and execute proof-pressure, leak, flow, thermal-vacuum, and qualification/acceptance test programs to verify flight-worthiness.
  • Author and maintain schematics, drawings, interface control documents, analysis reports, test procedures, and release/configuration records.
  • Select, size, and integrate coolant loop components to meet performance, mass, and reliability requirements, and work with suppliers to ensure high-quality, scalable production.
  • Diagnose and resolve cooling-system anomalies during integration and test, applying root-cause analysis and implementing corrective actions.
  • Partner with thermal, power, structures, avionics, propulsion, and software teams to ensure the cooling loop integrates seamlessly within the overall spacecraft architecture.
  • Embrace a fast-paced development environment, driving quick design cycles, hardware builds, and test campaigns to accelerate the program schedule.

Basic Qualifications
  • BS or MS in Mechanical Engineering, Aerospace Engineering, or a related field
  • 3+ years of experience designing or analyzing fluid systems and/or mechanical hardware in aerospace, automotive, energy, data-center cooling, or other high-performance environments
  • Strong fluids fundamentals: compressible/incompressible flow, thermodynamics, heat transfer, and pressure systems
  • Hands-on experience with fluid components including pumps, valves, regulators, tubing, and instrumentation
  • Experience taking hardware from concept through build and test, with hands-on integration and test experience
  • Strong mechanical design fundamentals in mechanics, materials, and thermal systems
  • Proficiency with CAD (e.g., NX, SolidWorks, or similar)
  • Experience working in fast-paced, hardware-focused development environments

Preferred Qualifications
  • Direct experience designing pumped liquid cooling loops, two-phase cooling, or cold-plate/coolant systems for high heat-flux electronics or GPU/compute hardware
  • Experience designing for space environments (thermal, vibration, vacuum) and background in spacecraft structures, mechanisms, or thermal systems
  • 3+ years of experience with spacecraft, launch vehicle, satellite fluid, or thermal systems
  • Familiarity with thermal control systems and thermal-fluid coupling at the spacecraft system level
  • Experience with FEA, thermal, and fluid simulation tools.
  • Knowledge of aerospace standards (MIL-SPEC, NASA-STD, ECSS) and spaceflight hardware qualification and acceptance margins
  • Hands-on experience with prototyping, machining, test setups, leak testing, or pressure vessel design
  • Startup or early-stage hardware experience; comfort operating with significant technical ambiguity

Compensation and Benefits
The salary range for this position is $100,000 - $300,000 annually. The actual base salary offered will depend on factors such as job-related skills, experience, qualifications, and internal equity.
Equity in Cowboy Space Corp.
Employees and their eligible dependents may enroll in medical, dental, and vision insurance
401(k) retirement savings plan
Paid time off
10 paid holidays per calendar year
Paid parental leave
Relocation assistance if applicable
Daily lunch in the office and a fully stocked kitchen with beverages and snacks
ITAR Requirements
Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about ITAR here.
Disclaimer
This job description is a summary of the primary duties and responsibilities of the job and position. It is not intended to be a comprehensive or all-inclusive listing of duties and responsibilities. Contents are subject to change at Cowboy Space Corp.'s discretion.
Cowboy Space Corp. is an equal employment opportunity employer. We consider individuals for employment or promotion according to their skills, abilities and experience. Cowboy Space Corp. is committed to complying with all applicable laws prohibiting discrimination based on race, color, religious creed, age, national origin, ancestry, physical, mental or developmental disability, sex (which includes pregnancy, childbirth, breastfeeding and medical conditions relating to pregnancy, childbirth or breastfeeding), veteran status, military status, marital or registered domestic partnership status, medical condition (including cancer or genetic characteristics), genetic information, gender, gender identity, gender expression, sexual orientation, as well as any other category protected by federal, state or local laws.

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