Mechanical / Project Engineer

Mechanical / Project Engineer

BlueHeart Energy Alkmaar

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What is required?

  • Completed MSc. in Mechanical Engineering or equivalent
  • 1-3 years of relevant work experience
  • Good at partnering with suppliers on both a technical and relational level
  • Experience with applying Lean Six Sigma methodologies in a production environment is a plus
  • Able to work both independently as well as in a team
  • Creative and able to think 'outside the box'
  • Good command of the Dutch and English language, both verbally and in writing

What will you get?

  • €3,500 - €5,500 gross p/m (depending on knowledge and experience)
  • 40-hour working week
  • 25 vacation days
  • Training opportunities
  • Company Phantom shares, laptop and SIM card EU+USA
  • Pension scheme

What will you do?

  • 35% Designing and validating concepts and solutions for heat pump components
  • 30% Searching for suppliers and collaborate with them
  • 15% Managing projects
  • 10% Aligning component specifications with the team
  • 10% Documenting, summarizing and explaining outcomes

This vacancy has been created based on interviews with employees to help you get a realistic preview of the job.

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As a Mechanical / Project Engineer at BlueHeart Energy, you are responsible for the entire development process of specific components, from initial design to final mass production. You will specifically focus on realizing two to three key components, for which you will bear responsibility. In this role, you translate innovative ideas into practical component designs using 3D CAD programs (SolidWorks). You establish the dimensions and technical specifications of the part, ensuring they meet both functional requirements and legal standards.

In close collaboration with suppliers, you convert designs into production-ready components at the desired cost price. This process is iterative: you actively communicate with suppliers and adjust designs based on possibilities, feedback and production requirements. You also ensure that components are delivered on time and within budget in cooperation with the Procurement team. At the same time, you work with your team to ensure that all components fit in the overall assembly. Additionally, you are responsible for specifying and validating the functionality of each part, continually documenting your choices and findings, and making adjustments to meet the established specifications.

You are part of the Engineering team, consisting of multiple Mechanical / Project Engineers, a Mechanical Engineer / Lead Designer, and a Project Manager Product Development. Together, you ensure that each part of the thermoacoustic heart of the heat pump integrates seamlessly into the overall design.

If you enjoy continuously searching for innovative solutions and find it challenging to work in a fast-changing organization, then this is a job for you.

Working week

Mechanical / Project Engineer

On an enjoyable workday, you spend a large part of your day designing components and exploring ideas. You also have a fruitful conversation with a supplier about a deep technical topic or issue.

On a less enjoyable workday, your technical creativity or problem-solving ability is hardly or not at all challenged.

  • 07:00
  • 08:00
  • 09:00
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  • 11:00
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Firsthand experience

You need to select a supplier for the injection molding of an aluminum part. What do you do?

Together with the Lead Engineer and the team, you determine the requirements of the part, including shape, dimensions and material properties. Once you have established the requirements, you make an initial design of the part in the CAD system. Together with the Procurement team, you then look for suitable suppliers.

After finding several interesting suppliers, you contact them, present the company and the product, and conduct initial discussions. To support this, you exchange technical data to get a good idea of how suitable their injection molding process is. If you are still interested in working with this supplier, you can ask for a quote or letter of intent in collaboration with the Procurement Engineer to review the prices and timelines they can offer. Based on this information, you decide if this supplier and BlueHeart Energy are a good match.


The career growth path at Blue Heart Energy is not fixed. The company expects to grow fast in the coming years, generating opportunities for all those who are ready to assume new responsibilities. BHE supports training and courses, and sharing knowledge is very important among employees. The main advantage of the start up and scale up phase is that self-initiative is really appreciated, and you can create your own job. As Blue Heart Energy grows, you grow along with them.

Mechanical / Project Engineer

Working at BlueHeart Energy

BlueHeart Energy was founded in 2016 to apply thermoacoustics as a technology in heat pumps. Thermoacoustics is a disruptive approach to generate heat and cold, with potential to revolutionize the whole industry. Over the past seven years, BHE has developed a thermoacoustic engine to power heat pumps in residential buildings. This so called 'Blue Heart' of a heat pump is sold to manufacturers. In the coming years, the 'Blue Heart' will have to be further developed and optimized. Besides this, we will set up our production facility, strengthen the relationships with our customers (Manufacturers of heat pumps) and set up pilot projects in houses and monitor these.

  • Headquarters in Alkmaar
  • 33 employees
  • Active in more than 10 countries
  • 20% / 80%
  • Average age 38 years
  • Casual
  • Hybrid working


Alireza Moradi (28) - Project engineer in R&D department

Why did you decide to work for this company?
Before this, I studied thermoacoustics during my master and PhD program and I was always eager to combine thermoacoustics with an environmentally friendly system. I came across Blue Hear energy's website during my research period and I was an immediate fan. When Michiel pitched all his ideas to me, I only thought about one thing:when can I start?

What was your previous job?
Before joining Blue Heart Energy company, I was busy with PhD program at Tarbiat Modares University besides doing some research for aerospace institute.

What do you do in your spare time?
Playing football, inline skating and of course still working on PhD.

Michiel Hartman (52) - CEO

Why did you decide to work for this company?
I founded Blue Heart because sustainable heating and cooling is one of the biggest challenges in the energy transition. Thermoacoustics is one of the game changers to make this possible. A complex technique with great impact which requires a great team with various specialties. Building Blue Heart on all these aspects is my big motivator.

What was your previous job?
Founder of QWIC electric bicycles and president of the Branch Association of Electric Transport. I was also temporary Project Manager of large heat projects in The Netherlands.

What do you do in your spare time?
Tennis, skiing, family, outdoor sports (workouts and water sports).

Myrthe Kuijf (27) - Research Engineer

Why did you decide to work for this company?
I started working at BlueHeart through my traineeship at Talent for Transition. I studied technical physics and I want to use my knowledge to contribute to the energy transition. At BlueHeart, I have the opportunity to do this as part of a team.

What did you study?
Student Technical Physics

What do you do in your spare time?
Reading and propagating plants

Roelof Schuitema (50) - Technical Sales Manager

Why did you decide to work for this company?
I was involved in multiple renewable energy projects including Blue Heart Energy's heat pump. When the project spun off into a startup, I seized the opportunity to work full time at Blue Heart. My work brings innovation, development and the application of sustainable technology together, with the entire company operating as a team. That's the ideal working environment for me, and that's what makes working at Blue Heart so great.

What was your previous job?
Operationeel manager at Teamwork Technology.

What do you do in your spare time?
Hiking, camping en spending time with my kids.

Haico Halbesma (53) - Chief Financial Officer

Why did you decide to work for this company?
Blue Heart's Energy goal to green the built environment in terms of heating and cooling appealed to me greatly. This combined with the opportunity to work with a multidisciplinary team on the complex challenge of applying this clean solution widely, bringing it to the market on a large scale and getting it produced in the Netherlands.

What was your previous job?

What do you do in your spare time?

Adam Zeman (24) - R&D Intern

Why did you decide to work for this company?
I was introduced to the field of thermoacoustic during one of the university lectures and got instantly hooked. Since we were required to do a mandatory internship as a part of our studies, I instantly knew where to look. Blue Heart Energy was the company that caught my attention from the very beginning due to the range of possible hands-on topics that I could work on.

What was your previous job?
Mechanical Trainee

What do you do in your spare time?
Sports (fencing, climbing, ...), Reading, Board Games

Roel Verhagen (43) - Lead Designer

Why did you decide to work for this company?
I chose to work at Blue Heart Energy because I sought to make a tangible impact in my work. The company's startup environment provides an opportunity to contribute to the development of a truly innovative product at the intersection of science, product development, and mass production. Working in a diverse team where roles are flexible keeps the work engaging and dynamic.

What was your previous job?
Product Developer

What do you do in your spare time?
I enjoy engaging in active activities with my children, as well as attending festivals, independent films, and theater performances.

Application process

First interview (by phone)
Personal interview + requirements
Deepdive on knowledge
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