Staff Engineer I

Years of Experience: 7

Education & Licenses:

  • Master of Science, Mechanical Engineering, 2014, The University of Pittsburgh, Pittsburgh, PA
  • Bachelor of Science, Mechanical Engineering, 2006, Youngstown State University, Youngstown, OH
  • Registered Professional Engineer, State of Ohio
  • Vibration Analyst – Level III
  • Certified Welding Inspector (CWI)

Areas of Specialization:

  • Machinery condition monitoring using vibration analysis
  • Advanced vibration analysis and troubleshooting for complex problems
  • Vibration control methods
  • Welding repair codes: ASME Section XI, ASME PCC-2, National Board NB-23
  • ASME Section IX, welding procedure and welder performance qualifications
  • ASME Section XI, repair and replacement program


Mr. Calko is a staff engineer in the Rotating Equipment, Vibration, & Dynamics Team at E2G | The Equity Engineering Group, Inc.  Prior to joining E2G, Mr. Calko worked as a maintenance engineer at a nuclear power generating station where he served as a vibration engineer and a welding engineer. 

As a vibration engineer, he was responsible for the condition monitoring of a wide range of pumps, fans, and motors.  He has worked with a number of different vibration data acquisition systems for steady state and transient vibration data acquisition and testing.  He has experience designing vibration control solutions to resonance problems, especially on vertical pumps. 

As a welding engineer, Mr. Calko was responsible for plant maintenance welding activities, which included structural and piping repairs and modifications.  He has experience qualifying welders and welding procedures according to ASME Section IX.  He is also a Certified Welding Inspector.