ZipRecruiter

Log In

1

Mechanical Engineer Scientist Jobs (NOW HIRING)

C5R

Mechanical Engineer

San Francisco, CA · On-site

By working closely withmodel developers, we continuously produce the data and physical ... Building the mechanical interface between a robot arm and a scientific instrument that was never ...

Lutron Electronics Co., Inc

Mechanical Engineer

Boston, MA · On-site

$102K - $120K/yr

Qualifications * BS in Mechanical Engineering, Aerospace Engineering, Engineering Science, or related field. * Minimum, cumulative GPA of 3.00 for all degrees earned. * 4+ years of mechanical product ...

US Department of the Navy

MECHANICAL ENGINEER

Groton, CT · On-site

$120K/yr

... engineering science or physics: (a) statics, dynamics; (b) strength of materials (stress-strain ... mechanics, hydraulics; (d) thermodynamics; (e) electrical fields and circuits; (f) nature and ...

USAJOBS - Search

MECHANICAL ENGINEER

Groton, CT · On-site

$120K/yr

... engineering science or physics: (a) statics, dynamics; (b) strength of materials (stress-strain ... mechanics, hydraulics; (d) thermodynamics; (e) electrical fields and circuits; (f) nature and ...

US Legislative Branch

Mechanical Engineer

Washington, DC · On-site

$120K/yr

... engineering science or physics: -- statics, dynamics; -- strength of materials (stress-strain relationships); -- fluid mechanics, hydraulics; -- thermodynamics; -- electrical fields and circuits ...

previous page

Showing results 41-60

All JobsMechanical Engineer Scientist Jobs

Mechanical Engineer Scientist information

See salary details

$45.5K

$102.9K

$166.5K

How much do mechanical engineer scientist jobs pay per year?

As of Sep 13, 2026, the average yearly pay for mechanical engineer scientist in the United States is $102,878.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,500.00 and $126,500.00 per year, depending on experience, location, and employer.

What cities are hiring for Mechanical Engineer Scientist jobs?

Cities with the most Mechanical Engineer Scientist job openings:

What states have the most Mechanical Engineer Scientist jobs?

States with the most job openings for Mechanical Engineer Scientist jobs include:

What are popular job titles related to Mechanical Engineer Scientist jobs?

For Mechanical Engineer Scientist jobs, the most frequently searched job titles are:

Infographic showing various Mechanical Engineer Scientist job openings in the United States as of August 2026, with employment types broken down into 91% Full Time, 7% Part Time, 1% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $102,878 per year, or $49.5 per hour.

Mechanical Engineer

San Francisco, CA • On-site

C5R
See more jobs at C5Rexternal

Other

Posted 11 days ago

Key responsibilities

  • Design, build, and iterate on the physical systems that enable automated research facilities, including fixtures, robot interfaces, enclosures, and mechanical components.

  • Work across the mechanical stack by creating CAD models, designing fixtures and structures, performing tolerance and structural analysis, and fabricating parts through rapid prototyping methods.

  • Collaborate with controls and ML engineers to troubleshoot mechanical issues and improve mechanical components to ensure reliable and repeatable operation.

Job description

C5R builds research facilities for frontier models: physical environmentswhere models can design experiments, operate instruments, learn fromresults, and be evaluated on real scientific work.

We build facilities end to end, bringing together the physical site,instruments, robotics, software, and operations. By working closely withmodel developers, we continuously produce the data and physical feedbacktheir models need for pretraining, lab-in-the-loop post-training, andevaluation.

The role

We are hiring a mechanical engineer to design, build, and iterate on thephysical systems that make an automated research facility work.

Our facilities are built from smart benches, robot arms, mobile carriages,custom fixtures, and reverse-engineered scientific instruments — all ofwhich have to work reliably, repeatably, and around the clock. You will ownthe mechanical design that holds it together, and you will be on the floorwhen it doesn’t.

You will work across the mechanical stack: CAD, fixture and tooling design,structures, enclosures, thermal, tolerance stack-ups, and fabrication.Examples of work might include:

  • Designing a gripper fingertip or plate fixture that survives ten thousand pick cycles without drifting out of calibration tolerance.
  • Building the mechanical interface between a robot arm and a scientific instrument that was never meant to be automated.
  • Designing enclosures, mounts, and cable management for benches packed with arms, cameras, power distribution, and networking.
  • Running tolerance and structural analysis on a bench frame, then machining or printing the part yourself the same week to prove it out.
  • Collaborating with controls and ML engineers to understand why a robot failed, then concretely improving the fixture, mount, or mechanism to fix it.
Who we’re looking for
  • Strong practical mechanical engineering experience. You should have built and debugged real hardware, not only models.
  • CAD fluency (Onshape, Solidworks, or equivalent) with real design intent — parts that get made, not parts that look good in a render.
  • Hands‑on fabrication experience: 3D printing, machining, laser cutting, sheet metal, or other rapid prototyping workflows.
  • Good fundamentals in tolerancing, materials, fastening, and mechanism design.
  • Comfort at the boundary with other disciplines — you should be able to read a schematic, reason about a motor’s torque curve, and talk to a controls engineer without a translator.
Nice to have
  • Precision motion, kinematic mounts, or repeatable fixturing.
  • DFM/DFA and experience taking a design from one-off to a small production run.
  • Electromechanical packaging: connectors, cable routing, thermal management, interlocks.
  • Experience with lab automation or scientific equipment.
Compensation & terms

We are open to full‑time roles and temporary stints of at least 3 months. Compensation depends on experience and structure. This role is on sitein San Francisco only.

#J-18808-Ljbffr

Apply