Intellectica is recruiting an experienced Mechanical Site Engineer on behalf of its client, a leading engineering & construction group with nationwide operations and a strong footprint in energy, industrial and infrastructure projects. The position is based in Lavrio, Attiki and will report to the Technical Director. The successful candidate will oversee the mechanical scope of works across a multi‑building redevelopment project, ensuring high‑quality execution, technical compliance and seamless coordination with civil, electrical and H&S teams.

Key activities and responsibilities of this role include:

• Overseeing the mechanical engineering scope of a large‑scale reconstruction and production‑facility project, ensuring safe, timely and technically sound execution across all phases

Mechanical Design Review & Technical Alignment

• Reviewing mechanical designs, equipment layouts, and installation requirements related to fire safety, HVAC, ventilation, hydraulics and industrial‑production systems

• Ensuring full alignment between mechanical studies and civil, structural and electrical designs throughout the project lifecycle

• Identifying design gaps or constructability issues and proposing practical engineering solutions

On‑Site Supervision & Quality Assurance

• Monitoring daily work on site to verify adherence to technical specifications, project timelines and quality standards

• Supervising subcontractors and ensuring proper installation, testing and commissioning of mechanical systems across all buildings under reconstruction

• Conducting inspections, validating method statements, and ensuring compliance with safety protocols and regulatory requirements

• Maintaining accurate records including site logs, inspection reports, material approvals and handover documentation

Coordination & Stakeholder Management

• Collaborating closely with civil engineers, electrical engineers, the Quality Controller, and the Health & Safety team to ensure cohesive project delivery

• Liaising with vendors and suppliers to verify technical compatibility and timely delivery of mechanical materials and equipment

• Supporting resolution of on‑site technical issues by providing clear direction and engineering judgment

Project Support & Operational Contribution

• Assisting the Technical Director in progress monitoring, reporting, planning updates and risk identification

• Contributing to continuous improvement of site processes, documentation and coordination practices

• Any other work that may be required from time to time

Professional experience & qualifications of a successful candidate:

• BSc in Mechanical Engineering, or a related field

• MSc or MBA will be considered a strong asset; additional technical certifications will be considered a plus

• At least 8 years of experience in construction, industrial or large‑facility projects with strong exposure to mechanical installations

• Solid understanding of fire safety systems, HVAC, ventilation, hydraulics and mechanical design principles

• Demonstrated experience supervising on‑site mechanical works and coordinating effectively with civil, structural and electrical teams

• Proficiency in AutoCAD for reviewing and interpreting technical drawings

• Strong working knowledge of Microsoft Office (Excel, Word, PowerPoint), with prior experience in ERP systems considered an advantage

• Familiarity with project‑management tools (e.g., Primavera, MS Project) will be viewed positively

• Excellent documentation, reporting and organizational capabilities

• Valid driver’s license

• Fluent in English and Greek (both written and verbal)

• Flexibility and ability to work across project sites throughout Greece, as required

Core competencies of a successful candidate:

• Strong ownership mindset and accountability

• Excellent communication and coordination skills

• Structured, detail‑oriented and safety‑focused

• Ability to resolve issues quickly and effectively

• Team‑oriented with potential to grow into a leadership role