Welcome to MDC - Mechanical Design Concepts
About Us - Employee Resumes
Stephen A. Becker, P.E. Principal, Mechanical Engineer

  • California Licensed Mechanical Engineer M16029
  • MSME University of California at Los Angeles
  • BSME California State University - Fresno
  • ASHRAE member, past chapter president
  • CSI member, past professional director
  • City of Fresno Building Commission/Joint Advisory and Appeals Board member
  • California State Board of Registration - Mechanical Advisory Committee member
  • State Center Community College Foundation Board member
  • California State University - Fresno - Engineering Alumni Board member

2003 - Present Vice President, Mechanical Design Concepts, Inc.
Fresno, CA
1998 - 2003 Partner, Teter Consultants
Fresno, CA
1986 - 1998 Vice President, Lawrence-Nye-Becker Associates
Fresno, CA
1979 - 1986 Project Mechanical Engineer, Donald R. Lawrence and Associates
Fresno, CA
1973 - 1979 Project Mechanical Engineer, Schoenwald-Thomas-Harris
Fresno, CA
1970 - 1973 Mechanical Engineer, Hughes Aircraft Company
Fullerton, CA
1977 - 1980 Engineering Instructor, California State University - Fresno


Michael D. Cantelmi, P.E. Principal, Mechanical Engineer

  • California Licensed Mechanical Engineer M23588
  • BSME California Polytechnic State University at San Luis Obispo
  • ASHRAE member, past chapter president

2003 - Present Principal, Mechanical Design Concepts, Inc.
Fresno, CA
1998 - 2003 Mechanical Department Manager, Teter Consultants
Fresno, CA
1990 - 1998 Mechanical Engineer, Lawrence-Nye-Becker Associates
Fresno, CA
1984 - 1990 Mechanical Engineer, Donald R. Lawrence Associates
Fresno, CA
1981 - 1984 Engineer in Training, Donald R. Lawrence Associates
Fresno, CA


Gary S. Hughes, P.E. Mechanical Engineer

  • California Licensed Mechanical Engineer M18685
  • Nevada Licensed Mechanical Engineer ME10603
  • BSME California State University, Fresno
  • Masters in Industrial Technology, California State University, Fresno
  • ASHRAE member, past chapter president
  • ASHRAE research grant recipient for study of multi-stage evaporative cooling

2000 - Present Mechanical Engineer, Mechanical Design Concepts, Inc.
Fresno, CA
1998-2000 Mechanical Engineer, Self-employed consultant
1991-1998 Mechanical Engineer, John Frank Mitchell, Inc.
Fresno, CA
1994-1996 Surveyor/Auditor, Xenergy, Inc.
Oakland, CA
1990 -1991 Mechanical/Controls Design Engineer, Robertson and Associates
Visalia, CA
1987 and 1989 Math Instructor, Fresno City College
Fresno, CA
1976-1988 Senior Mechanical Engineer, John Frank Mitchell, Inc.
Fresno, CA
1974-1976 Field Engineering Assistant, Pacific Gas and Electric Company
Five CA Locations


Ann R. Heiniger, P.E. Mechanical Engineer

  • California Licensed Mechanical Engineer M27321
  • BSME Texas A&M University
  • ASHRAE Member

2003 - Present Mechanical Engineer, Mechanical Design Concepts, Inc.
Fresno, CA
1997 - 2003 Chief Mechanical Engineer, Champion Industrial Contractors, Inc.
Fresno, CA
1990 - 1997 Mechanical Engineer, Lawrence Nye Becker Associates
Fresno, CA
1989 - 1990 Engineer in Training, John Frank Mitchell, Inc.
Fresno, CA
1987 - 1989 Mathematics Instructor, Robert E. Lee High School
San Antonio, TX
1986 - 1987 Engineer in Training, Gerling, Thomas and Ward, Inc.
Austin, TX
1983 - 1986 Engineer in Training, Goetting and Associates, Inc.