A remote sales role developing new business for ECO2 SuperOxygenation systems with utilities, consulting engineers, and industrial clients.
About Us
Home of the Speece Cone®, ECO₂ is the global leader in gas transfer technology. With more than 20 years of proven expertise and over 100 custom-engineered installations worldwide, we deliver reliable, science-backed solutions that improve water quality and protect the environment.
The Speece Cone®: Pioneering Gas Transfer for Cleaner Water
ECO₂, a cleantech leader based in Indianapolis, designs and delivers custom-engineered dissolved gas systems for water and wastewater treatment worldwide.
Photo: Speece Cone® Installation, Columbia, TN
Innovation Pioneered by Dr. Richard E. Speece
Since its founding in 2001, ECO₂ has advanced the groundbreaking work of Dr. Richard E. Speece, creator of the Speece Cone® technology. By offering sustainable alternatives to chemical treatment, ECO₂ has earned a reputation for solving odor and corrosion challenges in municipal and industrial systems while enhancing water quality. Today, our Superoxygenation solutions continue to restore rivers, lakes, and reservoirs across the nation, helping communities protect vital ecosystems for future generations.
Vision.
Our vision is to become the worldwide leader in the implementation of innovative pure oxygen transfer technology for water quality improvement.
Alex D. Oak, PE, Founder, Eco Oxygen Technologies, LLC
Careers – Join Us
Eco Oxygen Technologies is in search of self-motivated, highly qualified individuals who have a desire to succeed and grow within a fast paced and highly technical environment. If you meet the criteria, please submit your resume for review to info@eco2tech.com. Eco Oxygen Technologies, LLC is an Equal Opportunity Employer.
Open Positions
Application Engineer I
Location: Remote
Type: Full-Time
Department: Engineering
An early-career engineering role supporting ECO2 SuperOxygenation projects from system design through procurement, installation, startup, commissioning and ongoing customer support. Remote, with approximately 25% travel.
Meet The Team
David Clidence, P.E.
President
317.706.6482 | Mobile: 317.997.6428
dclidence@eco2tech.com
Mr. Clidence has been a key member of the technical development team since 2000, when the company demonstrated its first force main prototype. His experience includes working with plant operators, consulting engineers, government agencies, component suppliers and construction subcontractors to design, produce and install ECO2 Superoxygenation systems to meet owner performance expectations.
In addition, David supports sales, marketing and promotional programs through presentations to prospects and professional conferences. He was recently elected by peers to the Air Quality Committee of the Water Environment Federation, the national trade organization for water quality professionals. Mr. Clidence holds a B.S. degree in Civil / Environmental Engineering from Purdue University.
Alison (Ali) Trollier, P.E.
Vice President of Sales & Marketing
Mobile: 727.434.6473
atrollier@eco2tech.com
Ms. Trollier is a passionate and dedicated environmental engineer, with over 20 years in the water and wastewater industry. She obtained a B.S. degree in Mechanical Engineering in 2004 from the University of Wyoming, and her P.E. license for Environmental Engineering, in the state of Florida, in 2024.
Ali has an in-depth knowledge of municipal, environmental, and industrial water systems through her past experience with Severn Trent Services, Nalco Chemical, Mazzei Injector Company, and Hach Company.
Since her start with ECO2 in November 2016, Ali continues to bring her background in water chemistry and mass transfer systems to help solve problems with an environmentally friendly solution.
Garret Schleis P.E.
Engineering Manager
Mobile: 715.651.6653
gschleis@eco2tech.com
Mr. Schleis joined ECO2 in July of 2021, bringing his mid-west work ethic, and experience in wastewater aeration systems to the team. Garret has a B.S. degree in Chemical Engineering from the University of Minnesota, Duluth.
In his previous role, he served as an applications engineer for Aeration Industries where he quickly became a team leader, taking on project management, estimating, and engineering roles.
Garret has a wide range of technical skills including systems design, CAD and 3D modeling, project management, organization, and development of Standard Operating Procedures. Garret is a incredible asset for the growing technical team at ECO2.
Holly Lee
Client Coordinator | Office Manager
Office: 317.706.6482 | Mobile: 317.442.3955
hlee@eco2tech.com
Ms. Lee worked for ECO2’s sister company, Cripe Architects & Engineers, for 33 years as an Administrative Assistant before joining ECO2 as Office Manager in October 2019. While working at Cripe in 2000, Holly assisted with the initial startup of ECO2, and remains an essential part of ECO2 daily business.
Holly holds an Associate’s Degree in Secretarial Administration from Ball State University.
Board of Directors
Dr. Richard Speece – Inventor, Co-Founder, and Technical Consultant
Dr. Speece is a Professor Emeritus, of Civil and Environmental Engineering, at Vanderbilt University in Nashville, TN, and consultant for ECO2.
Dr. Speece developed and patented the Downflow Bubble-Contactor, which has become known around the world as “The Speece Cone®”, for dissolving high levels of oxygen into water. This technology is the basis for all ECO2 systems.
In addition to his numerous technical publications and innovations in the fields of wastewater treatment and environmental processes, Dr. Speece holds the following degrees:
- B.S. in Civil Engineering, Fenn University
- M.S. of Engineering in Civil Engineering, Yale University
- Ph.D. in Civil Engineering, M.I.T.
Al Oak, P.E. – Co-Founder and Chairman
Mr. Oak is also Chairman of Cripe, a large architectural and engineering firm based in Indianapolis, IN. He has been involved with the firm for over 40 years, and has served as the majority owner, President and CEO for 24 years. During Mr. Oak’s tenure, the Company has grown significantly and has received several awards and recognition for its growth potential, progressive management style, best places to work, and design excellence in a green environment.
Mr. Oak holds a B.S. degree in Civil Engineering from Purdue University, a MBA in Real Estate from Indiana University and is a registered Professional Engineer. Mr. Oak is a proud member of the Native American community and is a descendant of the Sault Ste. Marie Tribe in Michigan. He has held numerous leadership positions on both for profit and non-profit boards, has been recognized by the governor of the State of Indiana as a distinguished Hoosier and has received legacy awards from both Purdue and Indiana Universities.
Dr. George Tchobanoglous, Member
Dr. Tchobanoglous is currently Professor Emeritus of Environmental Engineering in the Department of Civil and Environmental Engineering at the University of California at Davis. He received a B.S. degree in civil engineering from the University of the Pacific, a MBA in sanitary engineering from the University of California at Berkeley, and a Ph.D. in environmental engineering from Stanford University.
He is also a registered civil engineer in California. Dr. Tchobanoglous’ principal research interests are in the areas of wastewater treatment, wastewater filtration, UV disinfection, aquatic wastewater management systems, solid waste management, and wastewater management for small systems.
He has authored or coauthored over 350 technical publications, including 12 textbooks and two reference works, including collaboration on the industry standard, Wastewater Engineering: Treatment and Reuse, published by Metcalf & Eddy.
Thomas Dapp, Member
Tom Dapp is owner and Chairman & CEO of Gradex, Inc., an Indianapolis-based heavy-highway company he founded. Gradex, celebrating its 36th year, specializes in grading, excavating and utility construction in the public and private sectors and on residential, commercial and industrial sites. Tom is a graduate professional engineer from the University of Wisconsin where he also obtained his MBA. He is currently Chairman of the Indiana Construction Association and a current Board member of the Greater Indianapolis Chamber of Commerce and is Chairman of the Infrastructure and Environmental Committee as well as serving on the Economic Council and Transportation Committees.
He is a Board member of the Carmel Chamber of Commerce and the Carmel Library Foundation where he served as past President. Tom also is a Director of the Western Golf Association, where he is active in promoting the Evans Scholars Program having been a recipient of that scholarship. Honors include being designated a Distinguished Hoosier by Governor Orr, selected to Who’s Who in Construction, Design & Engineering by the Indiana Business Journal, as well as being chosen as one of the 30 most influential persons in construction in the last 30 years. Tom is a Blue Chip Award recipient and a past Board member. He was recognized as Contractor of the Year in 1999 and is a SIR Award winner.
Russell Wurster, Member
Mr. Wurster is a member of KJS, LLC, which is the largest investor in Eco Oxygen Technologies. He has had a wide variety of owner/manager experiences in construction equipment companies and was a principal owner of Wurster Construction Company, a prominent commercial and industrial contractor in central Indiana. He has also developed some major commercial properties and owns a vast majority of the bowling centers in central Indiana. Mr. Wurster also has had many experiences in financing start-up ventures.