Semac Construction, a division of the Semac Group, is seeking a dedicated Mechanical Engineer to join our team in a permanent role.

In this position, you will play a key role in delivering high-quality mechanical engineering solutions, collaborating with clients and project teams, and ensuring excellence from design to execution.

Key Responsibilities:

• Develop, and supervise the installation of mechanical systems, with a strong focus on carbon steel, stainless steel, and alloy steel piping networks.

• Oversee fabrication and erection activities, ensuring adherence to international codes and project specifications.

• Supervise welding works requiring preheating and Post Weld Heat Treatment (PWHT) to guarantee metallurgical integrity, stress relief, and mechanical performance of alloy steel welds.

• Ensure compliance with approved WPS/PQRs and monitor execution, documentation, and inspection of welding operations.

• Verify quality through NDT and ensure compliance with HSE and technical standards.

• Collaborate with engineers, foremen, suppliers, and subcontractors to integrate mechanical systems into overall project execution.

• Prepare technical reports, calculations, and as-built documentation.

Qualifications and Requirements:

• Greek Citizenship (mandatory).

• Bachelor’s or Master’s degree in Mechanical Engineering (or related field).

• Experience levels:

• Junior: 1–3 years

• Medior: 3+ years

• Proven experience in mechanical construction, particularly piping fabrication and erection.

• Knowledge of alloy steel piping, welding preheat requirements, and PWHT processes.

• Familiarity with HVAC, plumbing, and mechanical systems in infrastructure/building projects is an advantage.

• Strong problem-solving and adaptability in site conditions.

• Excellent communication skills; fluent in English (spoken and written).

• Willingness to travel to project sites; valid driver’s license required.

What We Offer:

• A competitive salary based on your experience and expertise.

• A supportive and collaborative work environment that encourages personal and professional growth.

• Opportunities for professional development and career advancement.

• Opportunities to take initiative and make a real impact within the company and your role.