Stack Design Engineer

Date: 3 mars 2025

Lieu: Seraing, Belgique

Entreprise: John Cockerill

Stack Design Engineer – John Cockerill Hydrogen

Are you ready to shape the future of energy? 🍃 Join John Cockerill Hydrogen as a Stack Design Engineer and become part of a team driving impactful change in the energy sector.


About John Cockerill 🌍

Founded in 1817, John Cockerill is a global leader in sustainable innovation, addressing modern challenges across energy, defense, industry, environment, transportation, and infrastructure. With 6,000 employees in 29 countries and a 2023 revenue of €1.2 billion, we deliver tailored technological solutions to meet global needs.


🎯 Why join us?

At John Cockerill, we offer:

  • Impactful work: Contribute to innovative projects focused on sustainable technology.
  • Career growth: Benefit from regular training and internal mobility options to advance your career.
  • Global reach: Collaborate with diverse teams worldwide and gain international project exposure.
  • Supportive environment: Enjoy a culture of flexibility, work-life balance, and autonomy.
  • Agility & innovation: Work in an agile environment with expertise and decision-making on the same site, allowing for faster, more effective solutions.

🍃 Our Hydrogen expertise

John Cockerill Hydrogen has over 25 years of experience in manufacturing electrolysers and integrated hydrogen systems. We specialize in large-scale projects valued between €40 million and €100 million. With two gigafactories in France and China and a dedicated team of 300 professionals, we are accelerating our growth with multiple new projects.


Your role: Stack Design Engineer

As a Stack Design Engineer, you will be responsible for developing innovative and efficient designs, ensuring that all technical specifications are met. You will collaborate closely with cross-functional teams, including manufacturing and testing, to ensure designs are manufacturable and meet performance requirements.

📋 Key responsibilities:

  • Develop mechanical calculations for stack sizing.
  • Conduct thermal calculations related to the behavior of the stack.
  • Write technical specifications for the mechanical sizing of key stack components.
  • Contribute to the setup of tests in collaboration with our supplier network (including mechanical property tests).
  • Act as the interface between design and industrialization.
  • Collaborate with draftsmen

These projects place you at the forefront of energy transition, contributing to the development of sustainable technologies. 🌱


👥 Your team

You will part of a team of 5 design engineers. This dynamic and experienced team is known for its flexibility, autonomy, and collaborative spirit. The team foster a positive and collaborative atmosphere where each member brings complementary skills, ensuring both creativity and efficiency in our work.

You’ll report to Michel Arnalsteen, Stack Product Manager. Michel is a proactive manager who is committed to the success of his team. He encourages a collaborative approach, ensuring you have the freedom to lead while receiving guidance when necessary.


🧠 Your profile

Experience, knowledge, and hard skills:

  • Engineering degree in mechanical engineering, with a specialization in materials, fluid mechanics, thermodynamics, or thermal engineering.
  • Significant experience in a similar role
  • Knowledge and expertise in the following areas: mechanical design, machining, manufacturing and assembly of mechanical parts, pressure equipment, finite element analysis (FEA), CFD calculations, and surface treatments.
  • Strong command of English and French.

Personality and behavioral skills:

  • Agility and hands on.
  • Process orientation to ensure efficiency and continuous improvement.
  • Affinity with international environments and a willingness to travel abroad.
  • Active listening skills to understand client needs and team dynamics.
  • Communication, openness, and assertiveness to foster collaboration.
  • Organization and rigor to maintain project excellence.

🤝 What we offer

At John Cockerill, we deeply value your contribution. Here’s what we offer:

  • Attractive Salary Package with many extra-legal benefits:
    • Company car
    • Meal vouchers
    • Flat-rate expenses
    • Hospitalization/life/death/guaranteed income insurance
    • Variable remuneration
    • Profit-sharing scheme based on progress and results
  • Flexible work arrangements: After training, enjoy 1-2 days of remote work per week.
  • Comprehensive onboarding: A 6-month training program with plenty of learning opportunities.
  • Career development: Regular reviews, a large catalogue of training, and career progression opportunities.
  • International opportunities: Potential to evolve within your sector, across different sectors or businesses, and in different regions.
  • 31 days off: Enjoy a healthy work-life balance.

💬 The recruitment process

Ready to take on this exciting challenge? Apply now and be part of a team driving the future of sustainable industry. 🌱

What are the next steps?

  • First interview: Meet Loubna, our recruiter, via Teams, to learn more about your expectations and the role.
  • Second interview: Meet Michel, your future manager, to explore your potential contribution to the team.
  • Third interview: Meet Maïté, Chief Technical Officer, to gain valuable insights into the department's vision and objectives.

If it’s a match between you and John Cockerill, let the collaboration begin!

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