Design Engineer

Are you ready to contribute to high-impact, international energy projects shaping the future of low‑carbon industry?

Driven since 1817 by the entrepreneurial spirit and thirst for innovation of its founder, the John Cockerill Group develops large‑scale technological solutions to meet the needs of its time: facilitating access to low‑carbon energies, enabling sustainable industrial production, installing critical infrastructures.

Its offer to companies, States and communities consists of services and associated equipment for the sectors of energy, defence, industry, the environment, transports, and infrastructures.

With over 8,000 employees, John Cockerill achieved a turnover of €1.417 billion in 2024, operating in 28 countries across 5 continents.

John Cockerill Energy is a global technology leader with over 200 years of expertise in steam generation and thermal engineering, specializing in the design and supply of heat recovery steam generators, cooling towers and air‑cooled condensers under the Hamon® brand. Leveraging strong engineering capabilities, the company also delivers high‑value aftersales services such as re‑engineering, technical assistance, inspections, upgrades and lifetime assessments. Committed to the energy transition, John Cockerill Energy develops integrated, engineer‑driven solutions combining renewable generation, energy storage and advanced Energy Management Systems (EMS). John Cockerill Energy, The Power to change the World.

Why join John Cockerill Energy?

• Meaningful impact: contribute to energy projects directly supporting decarbonisation and energy efficiency.
• Global reach: collaborate with multicultural teams and work on complex projects worldwide.
• Supportive environment: benefit from a culture of flexibility, autonomy and work‑life balance.
• Engineering & decision centers on the same site: evolve in an agile, engineering‑driven environment enabling fast and informed decisions.

Because the energy transition requires reliable, efficient and sustainable technologies, John Cockerill Energy continuously innovates to deliver solutions combining performance, safety and environmental responsibility.

Your role

As a Design Engineer within John Cockerill Energy, you will join the proposal team within the Design Engineering department in Belgium, working alongside Alexandre and the wider team. You will contribute to the thermal and mechanical dimensioning of heat recovery steam generators (HRSG), from the early proposal phase through to establishing the technical hypotheses that will later be developed during the project design phase.

You will act as a technical point of contact primarily for internal stakeholders (proposal engineers) and, occasionally, for external clients, supporting the development of technically sound proposals for numerous worldwide energy projects.

Your key responsibilities

• Perform the thermal and mechanical dimensioning of heat recovery steam generators (HRSG) and their components, in support of proposals and project execution
• Select materials and account for the associated thermodynamic behavior
• Prepare calculation notes and technical specifications for the equipment, establishing the base design that will be further developed during the design phase
• Verify mechanical drawings for completeness and compliance
• Support the proposal and project teams during technical clarification meetings with clients
• Participate in design reviews and follow up on the resulting action plans
• Produce the technical deliverables expected within your area of expertise (studies, analyses, reports, presentations, etc.)
• Ensure smooth and accurate continuity of technical information at project interfaces
• Contribute to solving technical issues encountered during project execution
• Take part in maintaining and continuously improving the team's technical expertise through technology watch, standards watch and lessons‑learned processes

Your team

You will join a young, French‑speaking and collaborative Design Engineering team based in Belgium (7 colleagues), working closely with colleagues in India (5 people) and the United States (2 people). The team is organized into two groups: project execution and proposal — the latter led by Alexandre, who will be your direct manager (N+1).

Alexandre's management style is characterised by high expectations regarding the quality, accuracy and reliability of the work delivered. At the same time, he gives team members the autonomy and flexibility to organise their work in the way that suits them best, trusting them to take ownership of their responsibilities and commitments. He values accountability, a proactive mindset and continuous improvement, while fostering a collaborative environment based on trust, open communication and mutual support.