Thermal Engineer-Analyst

Closed for now

Thermal Engineer-Analyst

BlueHeart Energy Alkmaar

What is required?

  • Msc. in Mechanical engineering / Aerospace engineering / Physics
  • Specialization in thermal engineering
  • At least 5 years’ relevant work experience
  • Experience with heat exchangers, regenerators and acoustics is an advantage
  • Able to perform thermal calculation including FEA and CFD simulations (Comsol/Ansys)
  • Able to perform flow-related calculations (e.g. pressure drop, size of safety valve, helium leakage)
  • Able to define tests to validate thermal performance of components
  • Good command of the English language, both verbally and in writing
  • Able and willing to work in a start-up environment, goal oriented and good adaptability

What will you get?

  • €4,000 - €5,500 gross p/m (depending on knowledge and experience)
  • 40-hour working week
  • 25 days holiday
  • Training opportunities
  • Company Phantom shares, laptop and SIM card EU+USA

What will you do?

  • 50% Thermal design and analysis
  • 20% Engineers support
  • 20% Performing tests
  • 10% Internal consultation

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


As a Thermal Engineer-Analyst at BlueHeart Energy, you are responsible for optimal thermal operation of the various components in the system. You do this by creating thermal designs and by simulating and testing the various components in the system. You model and optimise heat exchangers, regenerators, actuators and acoustic losses, minimising internal thermal losses within the product.

You are familiar with Finite Element Analysis, Finite Difference and CFD simulation techniques and software, preferably Comsol and Ansys. You perform analyses through hand calculations and using software to estimate thermal leakage rates, thermal profiles and thermal deformation in the components and in the system. You validate these analyses through bench and prototype tests. You design these components and thermal systems to control heat within the system.

You are part of the Research & Development team, consisting of four Mechanical Engineers, a Technician and a Physicist. The team is managed by the R&D Manager. The team consists of people of different nationalities, so English is the main language.

If you enjoy working with a new product which you can learn a lot from and find it challenging to do so within an organisation where a lot of changes are taking place, then this is a job for you.

Working week

Thermal Engineer-Analyst

On an enjoyable working day, you have a lot of time to brainstorm new solutions to a thermal design problem. You read articles, determine possible solutions and draw up a roadmap to evaluate them.

On a less enjoyable working day, you're mostly busy reviewing other people's work, so you don't get as much of you onw work done.

  • 07:00
  • 08:00
  • 09:00
  • 10:00
  • 11:00
  • 12:00
  • 13:00
  • 14:00
  • 15:00
  • 16:00
  • 17:00
  • 18:00
    • Daily stand-up
    • Lunch
    • Consultation with R&D Manager
    • Performing hand calculations and simulations
    • Designing heat management systems
    • Analyzing components
    • Daily stand-up
    • Lunch
    • Consultation with Design Engineer
    • Administration
    • Preparing tests
    • Performing tests
    • Performing tests
    • Daily stand-up
    • Administration
    • Supporting Engineers
    • Performing hand calculations and simulations
    • Performing tests
    • Daily stand-up
    • Lunch
    • Consultation with Project Manager
    • Consultation with Design Engineer
    • Consultation with external party
    • Supporting Engineers
    • Performing manual calculations and simulations

Firsthand experience

You are asked to estimate the heat leak between a hot component and a cold component. How do you proceed?

First, you review the CAD model with the Design Engineer to understand the existing design, including the relevant materials and interfaces. You then confirm the boundary conditions (e.g. hot-side and cold-side temperature, pressure if relevant) to be taken into account in the analysis. You simplify the problem and perform a hand calculation to estimate the size of the heat leak. Based on the size of the calculated heat leak and the reliability of the analysis, you determine whether a more formal FEA analysis is required. If necessary, you use the CAD model in relevant software to simulate the heat leak and compare it with the hand calculations. Finally, you summarise and share the results with the relevant Engineer.


The growth path at BlueHeart Energy is not fixed. The company expects to grow rapidly in the coming years and create opportunities for anyone ready to take on new responsibilities. BlueHeart Energy offers training and courses and knowledge sharing between employees is very important. The big advantage of the start-up phase is that your own initiative is highly valued and you can create your own job. As Blue Heart Energy grows, you grow with it.

Thermal Engineer-Analyst

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 five 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, Blue Heart will have to be further developed and optimized. Besides this, we must set up our production and strengthen the relationships with our customers.

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


Michiel Hartman (51) - General Manager

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).

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?

Roelof Schuitema (49) - 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.

Frank Roet (46) - Project Engineer

Why did you decide to work for this company?
After a ten years in the oil and gas industry, I wanted to use my knowledge and experience to build something great. I like a dynamic environment, so a startup is a good fit for me. As an experienced development engineer, I can really do my thing here.

What was your previous job?
Technical Product Specialist.

What do you do in your spare time?
Building electronics.

Application process

First interview (by phone)
Personal interview + requirements
Deepdive on knowledge
You've got the job!

Interesting job?