Meet The Team
Behind every Tanaa Sanctuary lies a team of seasoned industry professionals dedicated to the art of high-end management. We combine decades of technical hotel experience with a deep commitment to biophilic design and cultural preservation. From finance and operations to wellness and culinary arts, our leadership team ensures that your vision is not only realized but sustainably grown.
John T. G. Nielsen
| Chief Executive OfficerJohn is an experienced leader in hospitality and wellness, with broad international expertise in luxury hotels, wellness resorts, education and sustainable tourism. John has held senior leadership roles, most recently as General Manager of Fivelements Retreat Bali, leading wellness-oriented hospitality and cultural integration. Having spent decades in senior management roles with Hyatt International, Mandarin Oriental Hotel, and Alila Hotels, and managing top international wellness centers including Chiva-Som and Blue Mountains Hotel Management in Shanghai, Sydney, and Melbourne, John was a key figure during the pre-openings of Ritz-Carlton Kuala Lumpur, Crown Towers Melbourne, and several restaurants & catering operations.
A former Board Member of the Wellness Tourism Association and Director of Sustainability at the Bali Hotels Association, he serves as a global ambassador for World Wellness Weekend. He is a dedicated advocate for hospitality and regenerative travel, John is currently pursuing his second Master's in Sustainability Leadership and continues to shape the future of hospitality by mentoring professionals and developing innovative, purpose-driven programs that align with wellness and sustainability values.
Lars Wagner
| Chief Operating OfficerLars is an international hospitality professional with extensive experience, including 13 years as a General Manager for luxury hotel groups and private owners. Before founding his hotel consulting and advisory firm in 2022, he served as the General Manager of Hotel Beau-Rivage Geneva. His career includes senior roles with Hyatt International, Mandarin Oriental, Four Seasons Hotels, and Mandarin Oriental, spanning three continents and supported by fluency in German, English, and French.
Known for his strategic mindset, strong operational expertise, and results-driven leadership, Lars has successfully opened two hotels from pre-opening and overseen one major reopening and renovation. He is recognized for his ability to reposition properties, drive financial performance, and foster high-performing teams.
Lars studied at the Hotel School Hamburg and completed advanced programs at Cornell University, IMD Lausanne, and ESSEC. He also shares his industry expertise as a regular guest speaker at Glion Hotel School.
Revina Chandra
| Chief Marketing OfficerRevina is an experienced marketing and communications professional with a strong background in luxury hospitality and brand storytelling. She has held senior roles as Director of Marketing & Communications at The Apurva Kempinski Bali, where she led brand positioning, strategic partnerships, and public relations. Prior to that, she served as Marketing & Communication Manager at Sofitel Bali Nusa Dua Beach Resort, overseeing media relations, campaigns, and guest engagement initiatives. She began her career as Marketing Communication at Alila Seminyak, where she supported pre-opening activities and communication strategies for the resort.
With expertise in campaign creation, community engagement, and brand communications, Revina has successfully elevated the visibility of internationally recognized luxury hotel brands. Passionate about sustainability and authentic storytelling, she continues to craft narratives that connect guests with both the brand and its cultural context.
Gilang Septiansyah
| Chief Brand & Digital OfficerGilang Septiansyah is an experienced leader in hospitality, branding, and digital strategy with extensive expertise in marketing and creative direction. He has held senior roles including Head of Marketing for the pre-opening of Nawa Labuan Bajo, Marketing Manager at Six Senses Uluwatu, and Digital Marketing & Communication Manager at Fivelements Retreat Bali. His career also spans creative leadership as Digital Art Director at Mediatropy and Corporate Art Director & Digital for Alila Hotels & Resorts worldwide, where he supported brand alignment across multiple properties.
In addition to his core roles, Gilang has delivered digital and creative projects for global brands such as Marriott Bonvoy, Hyatt ASPAC, Mastercard, Visa, Singapore Airlines, etc., strengthening their positioning through digital transformation and brand storytelling. With a background bridging both agency and hospitality groups, he has successfully driven pre-openings, global campaigns, and brand refinements across luxury hotels and resorts.
Gilang continues to develop his expertise as a Head of Marketing, Digital & Brand Curator, integrating creativity and strategy to build strong hospitality brands in Indonesia and beyond.