Apprenticeship as a Customer Dialogue Specialist (m/f/d) 2026 - Headquarters Basel

For a renowned partner company in the Baar area, we are filling a position as a Certified Sealer EFZ. You will work in a specialized company for building and structure sealing and ensure that roofs, facades, and structures remain permanently protected.

As a Certified Sealer EFZ, you seal flat roofs, basements, terraces, and other components against water, moisture, and weather influences. You work with bitumen membranes, plastic sheets, liquid plastic, and insulation materials and perform demanding detailed work.

Tasks

• Sealing flat roofs, terraces, balconies, and structures
• Laying and welding bitumen and plastic membranes
• Performing detailed connections, transitions, and penetrations
• Sealing facade and basement areas
• Working with liquid plastic systems

Requirements

• EFZ as a sealer or comparable training or experience in sealing or flat roof area (e.g., polybuilder – flat roof specialization)
• Manual dexterity, technical understanding, and spatial imagination
• Freedom from dizziness and good physical fitness
• Careful, reliable working method
• Good German language skills
• Driver's license category B is an advantage

We offer you

• Application without a cover letter, we create your profile
• Collegial and well-coordinated team
• Modern equipment
• Targeted support for further training (e.g., liquid plastic, safety technology)

Have we sparked your interest? Then we look forward to your application.

Contact person
Jan Huisman
+41 44 202 26 26
info.ch(at)kollabo.com

This position is also sought as: flat roof insulator, polybuilder flat roof, building sealer, roof sealer