Antonis holds all required STCW safety, security, and firefighting certifications and has been serving at sea since 2018. Having progressed from Bosun to Second Officer, he brings strong leadership, navigational awareness, and operational experience to the bridge team. Antonis is a dedicated maritime professional who continually strives to develop his knowledge and skills as he advances his career in the yachting industry. He is highly committed to maintaining the highest standards of safety, efficiency, and guest comfort on board.
Previous Yachts: O’NEIRO, O’PARI, O’CEANOS
Interests: Running, Music

Andonis Georgiadis
Second Officer
Nikos is a graduate of the Merchant Marine Academy of Hydra and holds a Captain Class B Diploma. He also holds STCW certificates regarding safety, security and first aid on board, a speed boat license, and has attended seminars on risk assessment, crowd and crisis management plus anchorage procedures. He completed his apprentice training in 2015 and later worked on bulk carriers. He is a hard worker, true professional and we are really excited to have him on board as a member of our crew.
Previous Yachts: ORA, Ο’MATHILDE, O’REA, JAZ, VITAMINSEA 2
Interests: Cycling, water ski

Nikos Laiveras
First Officer
Konstantinos has worked on several charter yachts as a deckhand responsible for mooring operations, safety and security duties, bridge
watch keeper water sports operations and overall maintenance of the yacht. He also has a lot of experience in tender operation. His aim is to ensure a positive and hassle – free experience for our guests.
Previous Yachts: GECO, OREA, MARLA, MEMORIES TOO
Interests: n/a

Konstantinos Kazouris
Deckhand
Elpidoforos holds a Diploma as Construction engineer, he worked at Golden yachts shipyard from April 2021 to June 2023 attending and working at 2 new building yachts that constructed at that period of time. From June 2023 till this time he worked at M/Y OREA as sailor. He holds all CTCW certificates for his position (Firefighting / live saving / RORO) as well as a Speedboat license.
Previous Yachts: O’MATHILDE, O’REA
Interests: Water polo, fishing, reading

Elpidoforos Maragkos
Deckhand
Dimitris holds a Culinary Arts Diploma from Le Monde Culinary School and certifications in Food Hygiene, Food Allergies and First Aid. In the course of more than two decades, he has managed to sharpen his skills and gain extra knowledge working next to renowned Chefs at five-star hotels and restaurants in Greece. He is a hardworking professional that recently decided to face new challenges and offer his services to our guests on board, with the same passion and excitement since day one.
Previous Yachts: O’PARI, O’NEIRO
Previous Work: “Bara”, “Intercatering Hellas”, “Golden Catering”, “Aria Catering”, “Pirates”, “Bratsera”, “Vasilena”, “Nikoleli”, “Rocabella”, “Resident George”, “Pier one”, “Mataroa”, “Bobo’s”, “The Margi”, “BLE”, “Patio”, “To kerasma”, “Mare Nostrum”, “Kalos Gialos”, “Four Seasons”
Languages: English, Greek
Interests: Fishing, history, cycling, cinema

Dimitris Tsimachidis
Chef
John holds a Hotel Management Diploma from Le Monde Institute of Athens. He commenced his career in yachting in 2007 as a steward onboard private and charter yachts. He is a certified barista, bartender and sommelier. He also holds all necessary marine certificates including crowd and crisis management, HACCP diploma, lifesaving and firefighting appliances and Ro-Ro passenger. He has excellent skills in hospitality and communication and he is an expert in table decoration, flower arrangements as well as in flambe demonstrations. John looks forward to receiving guests on board and strives to provide the highest service possible.
Previous Yachts: O’EVA, O’REA, PRINCE ABDULAZIZ, S-CAPE, AL DIRIYAH, MARLA
Interests: Sports, football, travelling and swimming

John Tezas
Chief steward/ess
Sevi is an experienced hospitality professional with a strong background in guest service, operations management, and luxury client care. Holds certifications in reservation management and reception service with additional training in aesthetics and wellness. Brings several years of experience in hotels, restaurants, and yacht environments, including roles in reception, operations management, and stewardess positions. Skilled in guest relations, housekeeping, service, laundry, and team coordination, with excellent communication, leadership abilities, and a strong focus on delivering high-quality service to ensure guest satisfaction.
Previous Yachts: O’PTASIA, ALEXANDRA
Languages: Greek, English, Bulgarian, Turkish, German

Sevi Yulianova
Stewardess
Angela holds a degree in Hotel and Restaurant Management as well as STCW certificates of proficiency for seafarers. She joined the yachting industry in 2015 and is an expert in silver service, flower decorations and art de la table. She is kind, friendly and aims to make our guests feel comfortable from the first moment they step on board.
Previous Yachts: O’PARI, O’PTASIA, AL DIRIVAH
Interests: Travelling, diving, running

Angela Rocel
Stewardess
Konstantinos holds a 2nd engineer degree from Kesen Athens and has an extensive background working on tankers since 2013. In 2023 he joined the yachting industry on board m/y NOMAD (70m) and completed two charter seasons in Saudi Arabia and in the Mediterranean. He is ambitious, hardworking and very polite and sociable with guests and we believe will be a great asset of our team.
Previous Yachts: NOMAD
Interests: Gym, sports, walking, travelling, music

Konstantinos Troiannos
Engineer
Captain Manos has been passionate about sailing from a young age, which led him to enroll in the Merchant Marine Academy of Hydra after high school. Even before graduating in 2003, he had already gained professional experience as a captain on sailing yachts. Although he later expanded his expertise by working on merchant ships and cruise liners, he chose to dedicate himself exclusively to luxury yachts over a decade ago.
Captain Manos holds a Captain Class A Certificate, has completed STCW training, and possesses licenses as a water ski and wakeboard instructor, as well as sailing and diving certifications. With his exceptional skills and extensive knowledge of safe mooring spots and premier yachting destinations across the Mediterranean, Captain Manos is a highly capable and accomplished leader at sea. He approaches everything he does with a positive mindset and demonstrates exceptional managerial skills, making him an effective team leader. With extensive experience and a wealth of knowledge, he brings tremendous value to O'MADELEINE.
Previous Yachts: O'MATHILDE, JAAN, O'EVA, O'REA
Interests: Sailing, water sports, diving

Manos Panitsas
Captain