Our Team

Asset Optimization Consultants

Over 400 Years Combined Experience

Our executive team comprises three industry leaders with more than six decades of combined experience. Together, we have delivered hundreds of successful Risk Based Inspection (RBI) and Asset Integrity Management (AIM) programs throughout asset-intensive industries such as oil and gas, refining, petrochemical, chemical, midstream, and mining.

We are known for our unique learning management approach, which aligns best practice work process, best-in-class technology, and collaborative relationships for unmatched results. In addition to our executives and team leaders, our collaborative relationships include your people as well as the expertise of longtime consultants around the globe for the most innovative asset management integrity solutions.

Executive Team

Scott Jones

Scott JonesPresident and CEO

Scott brings more than 25 years of tremendous leadership experience, most notably as co-founder, General Manager, and, later, CEO of Capstone Engineering. Under his direction, Capstone grew to more than 200 people before it was sold in 2010. Since then, Scott has continued to serve as a subject matter expert of risk-based inspection programs at the plant and enterprise levels. The pragmatic, knowledgeable leader is recognized by colleagues for his "ability to see the big picture and keep organizations moving forward in a positive direction." In addition, his degree in Finance from Stephen F. Austin State University has established Scott as "one of the lucky few who has in-depth knowledge of both finance and operations."

Leon Johnson

Leon JohnsonVice President, Performance and Learning

Leon's reputation as the guru of learning management began as co-founder of Capstone Engineering more than 20 years ago. There, he designed an innovative training and development program that was based on demonstrated performance rather than the traditional "time in grade" systems. His successful approach reached beyond his employees to the training programs of his clients. Since leaving Capstone in 2010, Leon has remained focused on the arenas of training and personnel development as a consultant and learning manager. In addition to his degree in Industrial Engineering, he is a licensed teacher in the State of Texas and a Certified Professional in Learning and Performance (CPLP).

Mike Hurley

Mike HurleyVice President, Technology

Mike shares a like-minded understanding of the needs of his clients, thanks to more than 25 years of experience as an engineer on the client side of the chemical and petrochemical business. He began his career as the sole engineer at a small plant in Beaumont, Texas, and climbed to manager of mechanical integrity at the largest site of a company in Houston, Texas. His background in plant management, fitness for service, analysis, maintenance/repair, evaluation, quality assurance/control, and safety standards culminated in the implementation of one of the first successful risk-based inspection programs in the chemical manufacturing industry, which was later established as the standard within the corporation. An author and patent owner, Mike is responsible for the technical direction of AOC.

Other Team Members

Chris Payne

Chris PayneSenior RBI Consultant

With more than 15 years of inspection experience in the pharmaceutical, chemical, and petroleum-based industries, Chris' primary focus for the last decade has been on the implementation and management of risk-based inspection (RBI) databases.

Don Conger

Don CongerSenior RBI Consultant

With more than 35 years of experience with companies such as Sandefer Oil & Gas, SGS Industrial Services, and Capstone Engineering, Don is responsible for the design, evaluation, implementation, and management of Integrity and Process Safety management systems.

Leomar Penuela

Leomar PenuelaSenior Consultant

Leomar is a corrosion/materials consultant with 30 years of experience. He spent 23 years in oil refineries providing technical services in the areas of corrosion, inspection, and reliability. The last seven years he has been acting as a Senior Consultant of Corrosion/Materials, supporting the refining, oil sand production, gas processing, and petrochemical sectors, performing damage mechanism reviews and developing corrosion control manuals for the implementation of risk based inspection programs.

Vibha Zaman

Vibha ZamanSenior Consultant

Vibha is a Professional Engineer with over 20 years of diverse experience including corrosion consulting and pipeline integrity management. She has spent the last 12 years in Asset Management Consulting supporting a wide array of offshore and onshore pipeline integrity management projects and corrosion studies for refining, oil sands, gas processing, and petrochemical sectors.

Rob Sladek

Rob SladekSenior Consultant

Rob brings more than 25 years of Mechanical Integrity experience from both the service provider and Owner/User vantage points. Rob is known for his ability to craft custom Mechanical Integrity solutions ensuring the implementation effort includes the total integration of related processes and available software programs and meets the needs of the end user.

Lenin Elorza

Lenin ElorzaSenior Consultant

Lenin brings more than 19 years of experience in formulation, execution, and management of multi-disciplined projects in the oil and manufacturing industries. A technical focal point for RBI, RCM studies and front line leader for functional safety management programs, Lenin has a strong knowledge of mechanical integrity, equipment strategies, and reliability programs. He is a highly skilled professional with in-depth knowledge of operations, supply chain, maintenance and reliability and experience as end user and service provider; as well as technical background in materials engineering and finances.


Paul Raithby

Paul RaithbySenior Consultant

Paul has 20 years Mechanical Maintenance, Reliability and Integrity experience in the hazardous chemicals industry as a Chartered Engineer and a leader in Inspection Management in a highly regulated environment. Complementing his Bachelors degree in Mechanical Engineering, Paul also has an MBA in Industrial Management and is a Six Sigma Black Belt.

Paul Sheriff

Paul SheriffConsultant

Paul Sheriff has 30 years of Mechanical Maintenance, Reliability, Project Management and Integrity experience split evenly between the steel industry and the hazardous chemicals industry. He has been a Chartered Engineer for over 25 years and is a Fellow of the Institution of Mechanical Engineers. As well as a Bachelors degree in Mechanical Engineering, Paul also has a MSc in Engineering Management and is a Six Sigma Black Belt.

Wayne Elliott

Wayne ElliottSenior Consultant - Inspection Group

Having worked upstream, midstream and downstream, Wayne brings over 45 years of Oil and Gas experience. Wayne joined the team after spending 30 years as the owner and general manager of a mechanical integrity inspection services company. Holding API 510, 653 and 1169 certifications, Wayne also has his AWS CWI, STI SP001 and NACE Corrosion Technologist certificates. A past Chairman of the Contractors and Manufacturer's Task Group with API, he remains an active member of API, AWS, NACE, ASME and ASNT.

Jonathan Bui

Jonathan BuiDirector, Sales and Marketing

Jonathan brings over a decade of Oil and Gas experience, with both a sales and HSE background. A strong knowledge of Petrochemical processes along with manufacturing health, safety and environmental issues, he has built management systems, training and risk assessment programs for a variety of industries. With experience as both a service provider and end-user, he excels in providing a customer first focus and problem solving skills while delivering proven results.

Marcus Beattie

Marcus BeattieTeam Leader

Marcus began his career in the industry as a visual inspector and advanced to site coordinator for Capstone Engineering. More than 10 years later, he has successfully run implementations and evergreen projects for multiple sites.

Lawrence Petersen

Lawrence PetersenTeam Leader

Lawrence Peterson is known for his attention to detail as a Team Leader for AOC. He has 15 years of experience as a former coordinator, inspector, and project manager at various engineering companies. Lawrence holds a B.S. in Business Administration from the University of Phoenix.


Billy Walker

Billy WalkerTeam Leader

Billy comes to us from the aviation industry and brings over 20 years of experience in the areas of safety, maintenance, inspection, and project management. Billy's attention to detail and enthusiasm will be an asset to both AOC and the customers he serves.

John Dickerson

John DickersonTeam Leader

With 16 years of experience, John has spent nearly half his life in the reliability field. Starting out as a Level 1 NDE technician, and obtaining all of the requisite API certifications along the way, John has advanced his career and has been employed by inspection contractors as well as refining and chemical companies. His time on the owner/user side of the business will allow him to fully understand and anticipate the needs and goals of AOC's diverse client base.

Melissa Barker-Lake

Melissa Barker-LakeTeam Leader

Melissa brings over 20 years of experience to the AOC team, with expertise in the areas of operations, inspection, maintenance and safety management. She has worked on projects as a QC inspection, maintenance coordinator and a piping field engineer. She has also worked as a Level II implementer within Oil and Gas refineries.

Brian Armstreet

Brian ArmstreetTeam Leader

Brian brings over 10 years of experience in the chemical and refining industry. He began his career as a contract and owner-user inspector for multiple organizations. More recently he has served in operations as a Reliability Coordinator and Maintenance Engineer. Brian has a Bachelor's Degree in General Studies from Lamar University as well as API 510, API 570 and API 653 certifications.

James Leonard

James LeonardTeam Leader

James brings 8 years of various inspection methods in the chemical plants and refineries. He began as a NDE helper and progressed into API and NACE Coating Inspection. On top of being an API Inspector he has served as the Owner/User representative on multiple projects helping meet every goal. He has achieved multiple NACE/API certifications including his API 580.

John Danna

John DannaProject Manager

John is an expert on the complete implementation of process safety management, including mechanical integrity, RBI, and design basis documentation. He has more than 35 years of experience in process industries, energy, and technical project management.


Steve Paulus

Steve PaulusCAD Drafting

Steve has more than two decades of experience as a draftsman and piping designer for large refineries and chemical plants. As the owner of OffsiteCAD, he provides basic and custom drafting services for chemical plant environments.

Steve Elmer

Steve ElmerSenior Software Consultant

With over 20 years of experience as a technician and leader in agile software environments, Steve is known for his ability to work across various platforms, technologies, and tiers, from the database to user interface and interactive design.

Kay Dawn Walker

Kay Dawn WalkerOffice Manager

Kay Dawn is the consummate administrative professional in the engineering sector of oil and gas, petrochemical, and offshore industries. Her experience spans onshore and offshore projects in domestic and international markets as well as various corporate environments.

Adriana Rivero

Adriana RiveroAdministrative Assistant

With more than 12 years of experience of senior-level executive support, management, and training. Adriana has a strong ability to streamline processes, maximize efficiency, and foster professional relationships within organizations. Her viewpoint centers around what role she can play in helping others find solutions. She is committed to excellence in service and always practices personal accountability in the workplace.

Nadia Clark

Nadia ClarkTalent Acquisition Specialist

Nadia Clark brings more than 20 years of experience in business management, recruiting, and human resources. She is Director of Recruiting at Elise Resources. Nadia has a B.B.A. from Albertus Magnus College and a Master's in Public Health from Connecticut State University.

Mona Larson

Mona LarsonSenior Technical Writer

For more than 20 years, Mona has provided technical writing for corporations such as Hewlett Packard, British Petroleum, Shell, and Chevron. She is known for her excellent, detail-oriented communication and ability to work well with a team.