Bonaire

Maarten Janse was born and raised in Zeeland and has a deep connection with the sea. After completing his Bachelor of Maritime Officer degree at the Maritime Institute De Ruyter (2002–2006), he began his career as a 4th officer on the cruise ships of Holland America Line. In the years that followed, he progressed to 1st officer and gained worldwide experience in ship navigation and maneuvering, delivering safety training to crew in various emergency roles, organizing emergency drills, and leading teams responsible for the maintenance of lifesaving appliances and fire detection, prevention, and firefighting systems.

In 2022, Maarten made the transition to a shore-based position, wishing to spend more time with his family while sharing his extensive hands-on experience with others. As a Senior Maritime Instructor at DRTC, he delivers training such as AFF, PST, PSCRB, FRB, ECDIS, GWO, and MCRM, as well as modules within ship management. His trainings are realistic, practice-oriented, and always linked to real-world situations. Maarten holds the certificate of competency as Master Mariner (all ships) and Firefighting Crew Member, and is a certified CAE MCRM instructor, making him a specialist in maritime incident response and teamwork.

Maarten has a strong passion for sharing knowledge. As a black belt holder in Kyokushin karate, he enthusiastically taught both youth and adults for many years. That same energy, dedication and attention to the participant characterize his approach in every training he delivers.

As a native of Limburg, he developed a passion for the sea at a young age, which led him to complete the MBO program Officer in Charge of a Navigational Watch, All Ships at Scalda College in Vlissingen. After a short period at sea, working in various ranks and on different vessels, he chose a shore-based career in search of greater stability.

Following several shore-based positions, he joined De Ruyter Training & Consultancy in February 2025 as a Maritime Instructor for both STCW and GWO training. He finds great satisfaction in seeing participants successfully complete their training and highly values the camaraderie among his colleagues.

Bas Gloudemans has been active in maritime safety training for many years. What began as a hobby—diving during HUET training—has grown into a passion for the maritime industry. After starting his career as an instructor and completing training as a safety specialist, Bas held various management positions at different training providers.

In addition to his dedication to safety training, the development of training centers both in the Netherlands and abroad has played a central role throughout his career. With experience from the Middle East, Asia, and Europe, Bas ultimately settled in what may well be considered the cradle of maritime education and training in the Netherlands: beautiful Zeeland.

Alongside his directorial responsibilities, Bas is still occasionally active as an instructor. After all, old habits die hard…

Marcel is a true Vlissingen native, deeply connected to the fire service and to firefighting in both the industrial and maritime sectors. After completing his commercial studies, he devoted his career to sharing his knowledge and practical experience at the training center in Vlissingen, DRTC, and the Zeeland Safety Region. To achieve this, he obtained all relevant firefighting diplomas. Since 1999 (initially part-time and later full-time), he has been doing this work with great pleasure and passion. Together with his enthusiastic, skilled, and experienced colleagues, he provides courses in Basic Training/Advanced Fire Fighting as well as refresher courses in firefighting.

In addition, he regularly works on industrial sites to organize and supervise firefighting training sessions. When a client has a gap in their command officer schedule, Marcel steps in there as well. He also works on a project basis with clients to solve more complex issues.

In his free time, Marcel is active as a (core) instructor for the Zeeland Safety Region.

Mathanje den Boer-Besemer is married and the mother of three wonderful boys. She was born in 1976 on a Dutch military base in Blomberg, Germany, where she spent most of her childhood. At an early age, she obtained all her swimming diplomas and immediately joined the DLRG (Deutsche Lebens-Rettungs-Gesellschaft). Around the age of fourteen, she also began assisting with teaching the youngest children.

Shortly before her seventeenth birthday, she returned to the Netherlands. There, she joined a local lifeguard association and completed her MDGO-AB education. However, she did not fully find her passion in this line of work. She started a university of applied sciences program to become a recreation officer but soon discovered that she is more of a doer than a thinker who sits in an office. This led her to switch to swim instruction, where she specialized in adapted sports. Building on this, she co-founded a foundation for people with medical limitations together with a friend, which she led for 25 years.

In the meantime, it became increasingly clear that the field of emergency services continued to attract her. She joined the Red Cross, became an instructor for both the Orange Cross and the Red Cross, and after five years of teaching the crew of KNRM station Hansweert, she herself became a crew member ten years ago. Since then, she has gained international experience, including an exchange in Croatia and training in Finland with Women in SAR.

Also ten years ago, Mathanje started working at DRTC as a first aid instructor. She greatly enjoys teaching and values the contribution she can make in the world of emergency services—whether with the Red Cross, Witte Kruis, the riot police, or the KNRM. For her, it is meaningful and rewarding work, and she hopes this is also reflected in her lessons.

Born and raised in Brabant (very close to Efteling), Emile spent around 18 highly adventurous and educational years as part of the military system. Qualified to operate in extended various disciplines and shaped by the rigorous “green” Methodology, he developed a keen ability to respond inventively and ad hoc to incidents under Spartan conditions, a skillset still tested in practice somewhere on the globe today.

Since 2018, he has combined this discipline with SOLAS, STCW, and hands-on maritime expertise, delivered with a touch of humor, sharing his knowledge during training sessions under the motto: “Train as you fight.” He mainly works at the DRTC site in Flushing, on-site at companies, and on board vessels (an honorary privilege!), though he started out at the Groningen-site.

As a hobbyist in MARCOM, he contributes to DRTC’s consistently strong performance (≥90%) on CBR exam results.

Key traits: No-nonsense, energetic.

Born and raised in Brabant (very close to Efteling), Emile spent around 18 highly adventurous and educational years as part of the military system. Qualified to operate in extended various disciplines and shaped by the rigorous “green” Methodology, he developed a keen ability to respond inventively and ad hoc to incidents under Spartan conditions, a skillset still tested in practice somewhere on the globe today.

Since 2018, he has combined this discipline with SOLAS, STCW, and hands-on maritime expertise, delivered with a touch of humor, sharing his knowledge during training sessions under the motto: “Train as you fight.” He mainly works at the DRTC site in Flushing, on-site at companies, and on board vessels (an honorary privilege!), though he started out at the Groningen-site.

As a hobbyist in MARCOM, he contributes to DRTC’s consistently strong performance (≥90%) on CBR exam results.

Key traits: No-nonsense, energetic.