
Geotechnician
Key Skills
Job Description
Location:
Maastricht Op de BosAt Sibelco, we advance life through materials.
For over 150 years, we’ve been a trusted leader in sourcing, transforming, and distributing specialty industrial minerals. Our work powers progress across industries as diverse as glass, ceramics, construction, coatings, polymers, and water purification. Beyond our materials, we’re proud of our commitment to sustainability, innovation, and empowering people from all walks of life to thrive and make a meaningful impact.
Are We the Perfect Match?
At Sibelco, we believe building a successful career is a two-way journey. We’re looking for individuals who share our values and vision, just as much as you’re seeking a company that aligns with your aspirations. Together, we can shape the future.
Job Description:
Geotechnical & Hydrological Monitoring
Conduct field monitoring activities at mines and quarries, including geotechnical, hydrological and environmental measurements.
Install, maintain and inspect monitoring equipment such as inclinometers, piezometers and other monitoring devices.
Collect, prepare and transport field samples according to established procedures.
Ensure monitoring data is accurately recorded and reported.
Laboratory Operations
Perform soil, rock and water testing in accordance with laboratory standards and procedures.
Prepare samples and maintain laboratory equipment.
Support quality assurance and quality control activities within the laboratory.
Maintain accurate testing records and documentation.
Surveying & Site Measurement
Perform basic surveying activities using: Drone systems, GPS equipment, Total stations (tachymeter), Levelling instruments, Inclinometers
Conduct blasting vibration monitoring when required.
Process and organize survey data for engineering review.
Field Support & Project Execution
Support geotechnical investigations and site assessments across Sibelco operations.
Assist geotechnical engineers and mining engineers in field projects.
Participate in site inspections and monitoring campaigns.
Support deployment of new monitoring technologies and equipment.
Health, Safety & Compliance
Comply with all Sibelco safety requirements and field procedures.
Ensure work is conducted safely in mines, quarries and field environments.
Report hazards, incidents and unsafe conditions promptly.
Maintain compliance with laboratory and field quality standards.
Equipment Management
Maintain field and laboratory equipment in good working condition.
Coordinate calibration, maintenance and repairs of instruments.
Manage inventory of sampling and monitoring equipment.
Technical Capabilities
Geotechnical Monitoring: Basic understanding of monitoring systems and instrumentation
Laboratory Testing: Soil, rock and water sample preparation and testing
Surveying: Basic surveying techniques and equipment
Data Management: Accurate recording and reporting of technical data
Equipment HandlingOperation and maintenance of field and laboratory instruments
IT skills: MS Office and basic technical software
Educational Background and prior professional experience
Dutch MBO Level 3/4 or equivalent vocational qualification in Surveying, Geomatics, Civil Engineering, Mechanical Engineering, Electrical Engineering, Agricultural Engineering, Chemistry, or a related technical discipline.
Experience in surveying, laboratory testing, field monitoring, mining, quarrying, construction, or a similar technical environment is preferred.
Experience operating surveying, monitoring, or laboratory equipment is an advantage.
Valid driver's license required.
Specialized geotechnical monitoring and laboratory training will be provided by Sibelco.
Language requirements
English and French – proficient verbal and written communication skills required to effectively interact with site personnel and project teams across Western Europe.
Basic knowledge in Dutch and German are an advantage
Employee Type:
Freelancer/External ConsultantWhy Join Us?
Sibelco is more than a workplace—it’s a community that encourages growth, innovation, and collaboration. Here’s what you can look forward to when you join our team:
Meet Our People: Careers
Learn About Our Recruitment Process: Learn More
Discover Our Sustainability Goals: Sibelco priorities
We also welcome applications from all backgrounds and are committed to providing reasonable adjustments to support you through the selection process.
How to Apply
Follow us on LinkedIn, Instagram, Twitter/X and Facebook to learn more about life at Sibelco. Submit your application in the Apply option.
Please note: We do not require agency services as we have a dedicated Global Talent Acquisition Team.
Core Responsibilities
The Geotechnician will conduct field monitoring, site surveying, and laboratory testing to support geotechnical and hydrological investigations. They are responsible for maintaining monitoring equipment, processing technical data, and ensuring compliance with safety and quality standards.
Requirements
Candidates must hold an MBO Level 3/4 or equivalent vocational qualification in a technical discipline such as Surveying, Civil Engineering, or Chemistry. Proficiency in English and French is required, along with a valid driver's license and experience in a technical or industrial environment.
About Sibelco Group
Industry: Mining
Company size: 5,001-10,000 employees
Material Solutions Advancing Life Sibelco is a global material solutions company that sources, transforms, and distributes specialty industrial minerals — particularly silica, clays, feldspathics, and olivine. We are also leaders in glass recycling. Operating in over 30 countries, we serve diverse industries such as glass, ceramics, construction, coatings, polymers, and water purification, delivering materials that power progress in modern life, from solar technology to smartphone screens. Founded in 1872, Sibelco has grown into a multinational business with a broad portfolio of high-specification minerals and a commitment to dedicated technical support. We strive for innovation, sustainability, and excellence, offering solutions that meet and anticipate the needs of our customers. At Sibelco, we are committed to sustainability, biodiversity, and the health, safety, and well-being of our employees. We foster a culture of diversity and inclusion, ensuring that all colleagues feel valued and supported. As a great place to work, we provide competitive pay, well-being support, and opportunities for growth and development. Our vision is to deliver long-term social, environmental, and economic value, guided by our purpose: Material solutions advancing life. #WeAreSibelco