Internships: Mechanical or Electrical R&D Engineer

Location: Delft, The Netherlands
Team: R&D Engineering
Type: Internship (Full-time)
Start date: Flexible
Duration: 3–6 months

About Blueheart Energy

At Blueheart Energy, we are on a mission to decarbonize industrial heat. Our breakthrough thermoacoustic heat pump technology stores and delivers clean, high-temperature heat—replacing fossil fuels in industrial processes. We are a fast-growing, multidisciplinary team of engineers, scientists, and entrepreneurs working at the intersection of thermodynamics, acoustics, and sustainability.

The Internship

Are you a hands-on engineering student with a passion for innovation and sustainability? Join our R&D team and contribute to the development of cutting-edge thermoacoustic systems. As an intern, you’ll work on real engineering challenges in a collaborative environment, gaining experience in mechanical or electrical design, prototyping, testing, and system integration.

What You’ll Do

• Support the design and development of thermoacoustic components and systems.
• Assist in building and testing prototypes in our lab and workshop.
• Analyze experimental data and contribute to performance optimization.
• Collaborate with engineers across disciplines (mechanical, electrical, thermal).
• Document your work clearly to support future development and knowledge sharing.

What We’re Looking For

• You are currently pursuing a BSc or MSc in Mechanical Engineering, Electrical Engineering, Applied Physics, or a related field.
• You have a strong interest in energy systems, thermodynamics, or acoustics.
• You enjoy working hands-on in a lab or workshop environment.
• You are proactive, curious, and eager to learn.
• Experience with CAD, circuit design, or data analysis tools is a plus.

What We Offer

• A chance to work on meaningful technology with real climate impact.
• A dynamic and supportive team environment.
• Access to lab facilities and mentorship from experienced engineers.
• Internship compensation and flexible working hours.
• A potential pathway to a graduation project or future role at Blueheart.