Early-Career Thermal Packaging Engineer – High-Impact Work

Boston Materials; Billerica (MA); On-site; USD 80,000 - 120,000; Full time

Benefits offered by this job

Health, Vision & Dental

Parental leave

Unlimited PTO

Holidays 14 days

Job summary

Boston Materials in the United States seeks a hands-on Mechanical Design Engineer to design, prototype, and test our liquid-metal TIM products for semiconductor packages. This early-career role emphasizes depth in mechanical design, packaging, and thermal testing under guidance from senior engineers.

You will create CAD models, run thermal and mechanical tests, and build data packages to support customer qualifications.

Qualifications

• Bachelor's or Master's degree in Mechanical Engineering or a closely related field.
• 0–3 years of professional experience; relevant internship, co-op, or hands-on project experience will be considered.
• Proficiency with CAD modeling and drafting (SolidWorks, Creo, or similar) and a working knowledge of GD&T.
• Hands-on prototyping and lab skills, with comfort building fixtures, running tests, and troubleshooting setups.
• Solid grounding in heat transfer and mechanics fundamentals; interest in electronics packaging and thermal design.
• Strong data analysis and technical writing skills (Excel, Python, or MATLAB a plus).
• Excellent communication skills and the willingness to ask questions, take direction, and learn quickly in a fast-moving environment.
• Exposure to semiconductor packaging, electronics assembly, thermal interface materials, or reliability testing (TCT, HTS, uHAST) is a plus.
• Familiarity with FEA modeling is a plus.
• Up to 10% travel to customer or vendor sites is expected.

Responsibilities

• Create CAD models, assembly drawings, and fabrication documentation for integrating our liquid-metal based thermal interface materials into customer-specific electronic packages.
• Build, instrument, and test package and assembly mockups to demonstrate design feasibility, including mechanical and reliability testing.
• Run thermal and mechanical test setups, reduce and analyze the resulting data, and summarize findings in clear internal reports.
• Coordinate part fabrication with internal shop resources and external vendors to keep project schedules on track.
• Support senior engineers in customer technical engagements – preparing sample builds, test data packages, and supporting material for application notes and design guides.
• Help capture and document customer technical requirements, including geometric, load, assembly, and environmental constraints, thermal budgets, and reliability standards.
• Support the R&D team in continuous improvement of system and product performance.
• Maintain organized design files, test records, and documentation to support customer qualification processes.

Skills

CAD modeling

GD&T

Prototyping

Heat transfer

Data analysis

Technical writing

Communication

Semiconductor packaging exposure

FEA modeling

Travel

Education

Bachelor's or Master's in Mechanical Engineering

Tools

SolidWorks

Creo

Job description

Boston Materials in the United States seeks a hands-on Mechanical Design Engineer to design, prototype, and test our liquid-metal TIM products for semiconductor packages. This early-career role emphasizes depth in mechanical design, packaging, and thermal testing under guidance from senior engineers.

You will create CAD models, run thermal and mechanical tests, and build data packages to support customer qualifications.