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BESIX

Construction, concessions and development

Site Supervisor - Piping & Mechanical Engineer

Full-TimeUpdated on 10/15/2026
No salary listed
Senior, Expert
Bachelor's
Brussels, Belgium
In Person
Mechanical Engineering

About the job

Requirements
  • A bachelor's degree in Mechanical or Electro-mechanical Engineering, or equivalent experience.
  • Five to ten years of experience in a similar environment.
  • Solid knowledge of mechanical equipment and piping.
  • Basic knowledge of hydraulics, electricity, and instrumentation.
  • Fluency in English, French, and Dutch is required.
  • Strong communication and coordination skills.
  • Commercial awareness.
  • Managerial and people skills.
  • A team-oriented approach and hands-on mentality.
Responsibilities
  • Execute the electro-mechanical scope of projects on site, including installation of mechanical and electro-mechanical equipment, piping systems, valves, and metallic structures, while meeting technical specifications, schedules, budget constraints, and quality standards.
  • Follow up and coordinate design activities, including 3D modelling with consultants, clients, and partners, for piping.
  • Ensure compliance with specifications, schedules, constructability, and maintainability.
  • Identify piping clashes and coordinate technical solutions with civil works.
  • Prepare and issue requests for quotation for piping and mechanical equipment.
  • Follow up execution design, including stress calculations, thermal expansion, and supports, as well as quality assurance and quality control.
  • Review equipment datasheets with equipment specialists.
  • Evaluate technical and commercial offers and provide recommendations.
  • Define final pricing and contribute to the project risk matrix.
  • Perform final compliance checks of selected suppliers.
  • Prepare and negotiate purchase orders, coordinate technical approvals, and issue final purchase orders.
  • Follow up detailed engineering and fabrication.
  • Attend factory acceptance tests, issue reports, and follow up corrective actions.
  • Follow up on-site deliveries and corrective actions.
  • Supervise equipment installation and ensure quality assurance and quality control compliance.
  • Monitor Pressure Equipment Directive compliance, including welding, tests, and pressure testing.
  • Issue and close non-conformities.
  • Support start-up and commissioning.
  • Monitor planning, budget, variations, and claims.
  • Coordinate with process, electrical, instrumentation, and civil disciplines.
Desired Qualifications
  • Experience in water treatment is an asset.

About the company

BESIX Group is an international construction and infrastructure company active from contracting through development and concessions. Its businesses deliver buildings, marine works, transportation infrastructure, environmental projects and other complex assets, while selected operations manage facilities or long-term concessions. Engineers, project managers and field teams work across Europe, the Middle East, Africa and other markets. BESIX combines technical construction expertise with financing, development and lifecycle responsibilities, allowing it to participate beyond the build phase of major public and private projects.

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