Proposal 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 projects supporting decarbonisation and sustainable industry


• Hybrid engineering role: combine proposal, process engineering and test activities


• Unique technical environment: work with in-house testing facilities (rare in the industry)


• International exposure: participate in large-scale projects worth several million euros


• Long-term development: a real entry point towards Project Engineer / Project Manager roles

Your role

As a Proposal Engineer, you will play a central role in the development of technical offers while contributing to process engineering and occasionally supporting testing activities.

You will act as a key interface between commercial, technical and operational teams, ensuring that proposed solutions are robust, competitive and aligned with client expectations.

This hybrid position combines technical analysis, engineering calculations, coordination and client interaction, within an international and dynamic environment.

Your key responsibilities

Proposal Engineering (main focus – ~80%)

• Analyze client technical specifications for complex industrial and energy projects


• Develop technical solutions in collaboration with internal experts (process, mechanical, E&I, etc.)


• Prepare and structure technical offers (equipment, systems, services)


• Define scope of supply and associated services


• Contribute to cost estimation in collaboration with internal teams and suppliers


• Ensure consistency, quality and competitiveness of proposals


• Interact with clients on technical aspects (written exchanges, clarification meetings)

Process Engineering (~20%)

• Perform engineering calculations (mass & energy balances, sizing, process design)


• Contribute to the definition and optimization of industrial processes


• Use internal calculation tools and methodologies


• Support the development of new technologies and applications (legacy & new solutions)

Test & Validation Activities (occasional)

• Support test campaigns in collaboration with internal and external test centers (CRM)


• Participate in the analysis and interpretation of test results


• Contribute to continuous improvement of products through testing feedback

Your team

You will join a multidisciplinary and collaborative team composed of:

• Proposal Engineers


• Process Engineers


• Internal and external testing partners

You will report directly to the Head of Process & Proposal and work closely with commercial teams to support business development.

The work culture encourages:

• Collaboration and knowledge sharing


• Autonomy and accountability


• Structured and high-quality delivery

Your profile

Experience & technical skills

• Master’s degree in Engineering (Industrial or Civil – Electromechanics, Energy, Process, or similar)


• A first experience (0–3 years) in process, proposal, or industrial equipment engineering is a strong asset


• Good understanding of:




• Thermodynamics, heat transfer, or fluid systems


• Industrial processes and equipment




• Ability to perform and understand engineering calculations


• Interest in complex, large-scale industrial installations

Personal & behavioral skills

• Rigorous and detail-oriented, with a strong sense of responsibility


• Ability to commit to long-term projects and deliver high-quality work


• Strong communication skills and professional mindset in client interactions


• Team player, comfortable working in a network of stakeholders


• Structured, reliable and able to manage priorities


• Comfortable working with confidential information

Languages

• Fluent in English and French

What we offer

At John Cockerill, we deeply value your contribution:

• Attractive salary package with many extra-legal benefits (company car, insurances, bonus, etc.)


• Comprehensive onboarding and long-term training path


• A stable environment with strong career development opportunities


• Exposure to large-scale international projects


• Flexible work arrangements, including 1 day of remote work per week

The recruitment process

Ready to take on this exciting challenge and contribute to the future of energy?

What are the next steps?

• Initial call with the Talent Acquisition Team


• First interview with Emmanuel


• Second interview

Is it a match between you and John Cockerill? Let’s build the future together.