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OSI Staff Portal

OpEx Solutions, Inc. is made up of highly qualified associates, typically graduates with a minimum of twenty years proven experience, covering a wide range of industries, operational excellence tools, and functions.  These qualifications guarantee our clients —

  • Experience & proven track records

  • Less trial & error

  • High levels of optimization & automatization skills

  • Coaching tailored for all levels of the organization

  • Up-to-date knowledge of current methodologies & techniques

Martin Nazareth
PMP®, SMC™, Certified Everything DiSC Workplace® Facilitator
John P. Gay, 

Vice President of Operations
Authorized Training Partner Instructor -

Authorized Training Partner Instructor - PMP

Martin Nazareth is the founder and president of OpEx Solutions, Inc. (OSI) — an organization with two divisions, Global OpEx Solutions and the CenTex OpEx Consortium, helping organizations find and define their own way to operational excellence. Since its inception, OSI has successfully assisted clients from Fortune 100 companies to startups in their pursuit of operational excellence through strategy, simplicity and execution.

Authorized Training Partner Instructor -

Authorized Training Partner Instructor - PMP

John P. Gay has been Supervising Master Black Belt and Global Best Practices Leader for Focused Improvement for DuPont, delivering over $1M per person every year in hard, validated savings in addition to $2M + in soft savings until his retirement.

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Sarita Nazareth
Vice President of Programs and Administration

Sarita Nazareth is a result-oriented program manager, team leader, environmental specialist, and statistician, with more than 20 years of professional experience and two graduate degrees in environmental science and public policy. 

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Gary Johnson, Jr., P.E.
Principal Consultant

Gary Johnson is a Certified Maintenance and Reliability Professional. Some of his main areas of expertise are maximizing asset utilization, reliability, asset tracking, cost reduction and planning and scheduling. He developed a system for real-time asset utilization monitoring for Alcoa where he served Alcoa for 34 years in various capacities.

Ken McClymonds, P.E.
      SMAC™, Certified Master Trainer & MBB
      TQS Master Trainer

Principal Consultant
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Ken McClymonds P.E., Principal Consultant  OpEx Solutions, A registered Professional Industrial Engineer and Six Sigma Master Black Belt with over 40 years of professional experience and 19 years at VP level, leading process improvement systems resulting in significant and sustainable bottom line results.

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Rudy Villarreal 
Senior Consultant
Health Mgt. Expert

Rudy Villarreal has extensive experience in health management. His area of expertise is contract management specifically the management of Medicaid and CHIP health maintenance organization contracts. Villarreal was considered subject matter expert for managed care. He developed processes, designed and developed training material and provided training for hundreds of health & human services employees.

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Vivian Sullivan
Program Manager

Vivian Sullivan is an experienced strategic and tactical marketing and operations professional known for her work in both domestic and international markets. Recognized for embracing and quickly understanding rapidly evolving markets and technologies, she is able to listen to customers' input and aid them in assessing their needs and finding effective training solutions.

Jesús (Jesse) Valdez, P.E.
Senior Consultant
Process & TPM
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Jesús Valdez has over 38 years of experience in the chemical industry and manufacturing sites. He has been responsible for the implementation and sustainability of the DuPont Production System (DPS) at DuPont’s manufacturing sites across many business segments. 

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Rich Deegan
Principal Consultant

Rich Deegan has over 25 years’ process industry experience leading and improving global supply chains including specialty chemicals, fluoropolymer resins, coatings, and films meeting stringent pharmaceutical, food, semiconductor, and Tier I & II auto industry standards.

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Rex Draman, PhD.
Principal Consultant

Rex Draman spent more than fifteen years working in operations management, holding both line and staff positions in a variety of industries before earning his Ph. D. in Operations and Strategic Management from the University of Georgia in 1995.

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J. Bennett Foster, P.S., CAP
       CSCP, CPIM 
Principal Consultant

J. Bennett Foster is a Certified Analytics Professional (INFORMS) and Industrial Engineer with over 40 years of experience across multiple industries.


APICS has certified him as a supply chain professional (CSCP and CPIM). He has significantly improved system design on new manufacturing and material handling systems costing billions of dollars. 

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