Location: Belgium (On-site)

Contract Type: Freelance

Rate: €65–€85 per hour (based on experience)

A leading engineering and construction organisation is currently looking for multiple Freelance Proposal Engineers to support its expanding project portfolio across industrial and mission-critical sectors.

Working as part of the Tendering team, you will play a key role in developing technical and commercial solutions for complex EPC projects, collaborating with engineering, procurement, construction and project delivery teams.

Key Responsibilities

- Manage the preparation of complete technical and commercial bid submissions.
- Review client requirements, specifications, drawings, scopes of work and tender documentation.
- Develop project execution approaches, installation strategies and technical methodologies.
- Produce and coordinate estimates covering mechanical works, materials, subcontractors, equipment, resources and associated project costs.
- Engage with suppliers and subcontractors to obtain pricing and validate technical solutions.
- Work closely with internal engineering and operational teams to ensure proposals are deliverable and commercially competitive.
- Assess technical challenges,



project risks and potential opportunities during the bid phase.
- Support client meetings, tender clarifications and negotiation processes.
- Contribute to improving tendering processes, tools and methodologies.

Requirements

- Degree qualified in Mechanical Engineering, Electromechanical Engineering or a related discipline.
- Experience within Proposal Engineering, Tendering, Estimation, Bid Management or Pre-Construction Engineering.
- Background delivering bids for complex EPC projects.
- Strong understanding of mechanical installations, industrial systems and piping activities.
- Experience within one or more of the following sectors: Data Centre, Pharmaceutical, Oil & Gas, Petrochemical and Industrial facilities.
- Comfortable working with multidisciplinary teams across engineering, procurement and construction.
- Strong analytical skills with the ability to develop practical and cost-effective solutions.
- English language skills required; French is advantageous.

This is an opportunity to join a growing project environment and support the delivery of technically complex EPC developments across Belgium and international markets.

📌 Proposal engineer (España)
🏢 JAM
📍 España