Senior Mechanical Engineer

W3Global; Boston (MA); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, vision, 401k

Vacation - holidays and extra days

Sick days, bereavement time

Stock Options

Job summary

W3Global is seeking a hands-on Senior Mechanical Engineer to drive hardware from concept through field deployment. You’ll collaborate with mechanical, electrical, power electronics, and geoscience teams to design, prototype, test, and deploy real-world systems in a fast-moving R&D setting.

You will own mechanical design, run full design-build-test cycles, and work with shops and vendors to fabricate parts, with strong focus on integration and robust field-ready solutions.

Qualifications

• 5+ years of mechanical engineering experience.
• Bachelor's degree in Mechanical Engineering or related field; Master’s preferred.
• Strong SolidWorks / 3D CAD experience and hands-on prototyping.
• Experience with electromechanical hardware integration in R&D environments.

Responsibilities

• Own mechanical design of components, enclosures, and hardware assemblies.
• Lead full design-build-test cycle from concept to field deployment.
• Create prototypes and test equipment using SolidWorks.
• Coordinate with machine shops, fabricators, and vendors.
• Perform engineering calculations, FEA, and material selection.
• Integrate mechanical systems with electrical sensors and cabling.
• Troubleshoot hardware during testing and improve designs based on results.
• Support installation, commissioning, and field testing.

Skills

SolidWorks / 3D CAD

Hands-on prototyping

Mechanical design

Electromechanical integration

FEA / structural analysis

Vendor collaboration

Field testing

Education

Bachelor's degree in Mechanical Engineering

Master's degree preferred

Tools

SolidWorks

3D CAD

Job description

Our client is a growing technology company developing innovative hardware for sustainable energy and natural resource applications.

We are looking for a hands-on Senior Mechanical Engineer who enjoys taking hardware from concept → design → prototype → fabrication → testing → field deployment.

You’ll work closely with mechanical, electrical, power electronics, and geoscience engineers to build and test real-world systems in a fast-moving R&D environment.

What You'll Do

• Own mechanical design and development of components, assemblies, enclosures, pressure housings, and structural hardware.
• Take designs through the full design-build-test cycle.
• Design and build prototypes and test equipment using SolidWorks.
• Work with machine shops, fabricators, and vendors to manufacture parts.
• Perform engineering calculations, FEA, material selection, and design validation.
• Integrate mechanical hardware with electrical systems, sensors, wiring, and cabling.
• Troubleshoot mechanical and electromechanical systems during testing.
• Improve designs based on test results and field feedback.
• Support equipment installation, commissioning, and field testing.
• Work across multiple engineering disciplines to solve challenging hardware problems.

What We’re Looking For

• 5+ years of mechanical engineering experience.
• Bachelor’s degree in Mechanical Engineering or a related field.
• Master’s degree preferred.
• Strong SolidWorks / 3D CAD experience.
• Hands-on experience with prototyping, fabrication, machining, assembly, and testing.
• Experience developing physical hardware in an R&D, startup, or product-development environment.
• Experience working with machine shops, vendors, and manufacturing partners.
• Experience with electromechanical systems and hardware integration.
• Strong mechanical engineering fundamentals and problem-solving skills.

Nice to Have

• Pressure vessels or pressure systems
• High-temperature or harsh-environment hardware
• Power electronics or high-voltage hardware
• FEA / simulation
• Sensors and data-acquisition systems
• Welding, machining, or other hands-on fabrication
• Field testing or equipment commissioning

Why This Opportunity?

This is an opportunity to build real hardware, not just create CAD models. You’ll have significant ownership over mechanical systems and see your designs move from the drawing board into prototypes, testing, and field deployment.

Benefits

• Medical, dental, vision, 401k
• Vacation - Federal holidays off, Thanksgiving holidays, Christmas and New Year, 15 additional workdays per year (3 weeks) vacation time
• Sick days, bereavement time
• Stock Options