Meet The Team!

Learn more about the Entech Innovative team members and the experience and skills we have to offer. 


Owner and Chief Engineer

John Marhoefer, the firm’s managing partner and chief engineer, has more than three decades of experience developing successful projects for the entertainment industry. John has an extensive background in many disciplines including structural, dynamic mechanical, controls and power distribution systems. The rare combination of knowledge and skill provides him with the tools necessary to successfully integrate a wide variety of disciplines into cohesive projects – a vital skill set for creating complex environments, systems, creative icons and structures. John attended Lehigh University on scholarship and graduated with a BSCE degree and subsequently earned an MBA from the Crummer School of Business at Rollins College. 


   Since graduating with his Mechanical Engineering degree in 2012, Justin is been able to say, “My engineered work has been a part of some of the largest expansions in themed entertainment history.” He has worked on projects for the many Disney and Universal parks, the Daytona International Speedway, and multi-use commercial spaces. For Walt Disney, he was part of the design of some of the water features for “Voyage of The Crystal Grotto” at Shanghai Disney and the restoration of the Empress Lily and its conversion into the Paddlefish Restaurant.

   The Paddlefish project entailed restoring her original glory with modern flair and the addition of the paddle wheel and smoke stacks. During the construction of Diagon Alley at Universal Orlando, he was part of the development of the show action equipment elements.

Executive Director 

Ian Gaines.jpg


   Ian has more than 20 years of experience in project management, operations management and production in the construction and visitor park industries. Additionally, he is skilled in the fabrication, assembly and troubleshooting of mechanical components and field installation. 

   His fabrication and integration management responsibilities include hands-on direction of the project management, engineering and production teams, prioritizing workloads, and ultimate accountability for the profitability of Entech Innovative. Ian is experienced and skilled in all areas of the custom design build process and has the depth and breadth to effectively and proactively identify project elements which may pose challenges and devise plans to avoid them. Ian has a proven ability to assess the situation and make effective decisions to resolve obstacles to keep the project moving.

Operations Director


   Shane Gray has been involved in production, project, facilities, and production management for more than 20 years. He has held many positions over that time due to his practical and technical knowledge, aesthetic acumen, people skills and fabrication abilities. Those roles include Production Director at a theming company; General Manager of an FEC/amusement park where he was responsible for the grand opening and operation of the park during its first two seasons; and Project Manager of many complex custom design-build projects for Entech, including the award-winning Blue Horizons show set for Sea World San Diego. 

   With hands-on experience at every level of the custom design build industry, he truly leads by example. His flexibility and facility with stepping into a project at any stage of development and taking ownership ensures that every project will meet the client’s goal.

Senior Project Manager


Senior Project Manager

   Eric Roehl has a bachelor's and master's degree in Ocean Engineering from Florida Institute of Technology. During his sophomore and junior years at Florida Tech, he did an internship with Newport News Shipbuilding in Newport News, Virginia.   There he had the opportunity to do hands on engineering work on Los Angeles Class Attack Submarines and the construction and overhaul of Nuclear Aircraft Carriers.

   After graduating, Eric when to work at the American Bureau of Shipping in New Orleans. At ABS, he was responsible for the plan review of structural, mechanical, electrical, piping, and safety system of ships, barges and yachts.  

   After three Years at ABS, he returned to Florida to become an engineer and project manager at Structural Composites. In his 16 years there, he worked on a variety of projects for theme parks, defense contractors and the US Navy.

 Francis Gilder has over 40 years of experience in the accounting field. He is a Fellow of the Chartered Association of Certified Accountants, a UK professional qualification equivalent to a Certified Public Accountant in the US. He was a partner in a medium sized firm of accountants in his home city of Peterborough, UK before starting his own firm where he provided his clients with a full range of accounting services until he moved to the USA in 2009. Francis is skilled in all areas of accounting services including management accounting, financial reporting and tax compliance and planning  

Francis Gilder

Company Accountant

Hannah Scharlach is a graduate from the University of Central Florida, with a degree in Marketing from UCF’s College of Business Administration. Throughout her education, Hannah participated in many hands-on projects developing and implementing marketing campaigns, running social media promotions, utilizing web analytics, as well as learning in depth about digital media marketing, services marketing, and marketing research. This experience allows Hannah to think creatively and analytically for the best suited marketing strategies, and her years in customer service prior to graduating enabled her strong speaking and customer relation skills to meet our clients needs.

Hannah Scharlach

Marketing and Business
Development Coordinator