Assistant Driller

For over 40 years, IOTA Group has been supporting its clients by providing specialized technical skills for complex international projects, particularly in the energy and infrastructure sectors.

As part of a major deep geothermal drilling project in the Canton of Vaud, Switzerland, IOTA is looking for several experienced drilling professionals to strengthen the teams mobilized for this campaign.

We are looking for several experienced Drillers / Assistant Drillers to participate in a deep geothermal drilling campaign in Switzerland.

Operations will be carried out on a light drilling rig – Super Light Rig – equipped with an MPD (Managed Pressure Drilling) system.

The site will operate 24/7, with 12-hour shifts according to a 3x3 rotation.

Technical training and project familiarization for one to two weeks are planned in Switzerland in December 2026, before the operational start scheduled for January 2027.

Depending on your level of experience and your role, your main responsibilities will include:

• Carrying out and supervising daily drilling operations in accordance with the drilling program.
• Participating in the conduct of operations on the Rig Floor.
• Supervising and coordinating the operational team on the drill floor, depending on the level of responsibility.
• Participating in operations carried out with an MPD – Managed Pressure Drilling system.
• Ensuring the correct use, availability, and proper maintenance of drilling equipment.
• Guaranteeing safe working conditions on the Rig Floor and actively contributing to a strong safety culture.
• Complying with project procedures, Well Control requirements, and applicable HSE regulations.
• Identifying and reporting operational issues encountered during operations.
• Participating in the continuous improvement of the performance and efficiency of drilling operations.

We are looking for professionals with solid experience in onshore drilling operations.

Required Experience:

• Minimum 10 years of experience in onshore Oil & Gas drilling operations or deep geothermal.
• Minimum 4 years of experience in continental Europe.
• Solid practical experience in Rig Floor operations.
• Good knowledge of drilling equipment and operations.
• Strong mastery of Well Control principles and practices.
• Experience in international and multicultural teams is appreciated.

Expected Skills:

• Very good operational understanding of drilling equipment.
• Ability to work in a demanding drilling environment operating 24/7.
• Strict compliance with operational and HSE procedures.
• Strong awareness of safety, security, and environmental issues.
• Ability to work effectively in a team.
• Advanced professional English is essential.

Required / Expected Certifications:

• IWCF Level 3
• OPITO H2S
• MIST or BOSIET
• Valid OEUK medical certificate

Previous experience in MPD – Managed Pressure Drilling will be a real advantage.

• Project: Deep geothermal drilling
• Location: Canton of Vaud, Switzerland
• Technical training: 1 to 2 weeks in Switzerland in December 2026
• Operational start: January 2027
• Initial duration: 4 to 6 months, with the possibility of extension depending on project needs
• Organization: 3x3 rotation
• Working hours: 12-hour shifts – 24/7 operations

Do you have solid experience in onshore drilling and wish to join a technical deep geothermal project in Switzerland?

Join the IOTA teams and send us your application.