Our People

 

ROMULUS O. GRAY, P.E.
EDUCATION AND CERTIFICATION
AS Degree in Civil Engineering Technology, 1961 – Southern Technology Institute, Marietta, GALicensed Professional Engineer in South Carolina, North Carolina, and Georgia
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Gray founded Gray Engineering Consultants in 1984 and is currently its Chief Operating Officer. Mr. Gray has been working as a Civil Design Engineer since 1961 on Industrial, Commercial, Residential Subdivisions, and Government Projects. He is experienced in surveying, sitework, road and bridge construction, storm drainage, water and sewer distribution systems, treatment facilities and environmental system design. He also has experience in structural engineering, building design, construction management, field inspection, and cost estimating.

 

RODNEY E. GRAY, P.E.
EDUCATION AND CERTIFICATION
B.S., Civil Engineering, 1992 – Clemson University
Licensed Professional Engineer in South Carolina, West Virginia, Maryland, and Florida
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Gray has been with Gray Engineering since 1990 and is the President of Gray Engineering. Mr. Gray has extensive experience in all aspects of site development engineering. He has worked as a Civil Design and Sitework Engineer for Municipal, Industrial, and Commercial clients. He has experience in water distribution systems, wastewater collection systems, sitework design, erosion control design, and stormwater management systems. He also has experience in cost estimating, conceptual design, final design, equipment selection, construction management, and field inspection. He has had an additional three years of experience in computer resource management. This management consists of installation, maintenance, and performance of every aspect concerning computer hardware, software, communication, and local area networking. Mr. Gray is experienced with the latest Autodesk Land Desktop, Sedcad, and other computer aided design tools.

 

DAVID J. GRAFFIUS, P.E.
EDUCATION AND CERTIFICATION
B.S., Civil Engineering Technology, 1993 – University of Pittsburgh at Johnstown, PA
Professional Engineer in Pennsylvania, Virginia and North Carolina
Associate Professional Engineer, South Carolina
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Graffius has been with Gray Engineering since 1998, is a Senior Project Engineer and Manager. He has been a hard working and dedicated project engineer for over 16 years in the field of civil engineering, planning, design and permitting. Mr. Graffius has been employed by PennDOT, L. Robert Kimball & Associates, Inc. and Crown American Corporation prior to joining the Gray Team.  He has experience is concept site layouts, land planning, site design, highway planning and design, grading, storm drainage design, hydrology and hydraulic computer modeling, detention/retention pond sizing and design, overall stormwater management, utility design and layout, erosion and sedimentation control design, SWPPP preparation, final construction documents preparation and all aspects of civil permitting including local planning approvals, state and local stormwater and land disturbance permitting, state and local utility permitting and state and local highway permitting.  He has experience with construction consultation working very closely with general, grading and utility contractors throughout the life of the project. He has worked closely with property owners on and adjacent to construction project sites to ensure owners are informed in a professional manner. David has also managed several large commercial retail projects throughout his career. David is a team player and will utilize his technical expertise and experience in any team role to serve the project well. David has experience with Microsoft Office, AutoCAD, Hydraflow, Sedcad 3 and 4, VTPSUHM and HEC-RAS storm modeling software.

 

ZACHARY D. JOHNSON, P.E.
EDUCATION AND CERTIFICATION
B.S., Civil Engineering, 2007 – Clemson University

CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Johnson has years of experience in the field of civil engineering. He has been with Gray Engineering since 2005 and has experience in sitework design for numerous commercial, residential, and industrial projects. His range of involvement with design includes site layout plans, grading and drainage plans, stormwater management design (SWPPP), wastewater system design, water system design, pump station design, and regulatory permitting.

 

W. ALEX CONVERSE, P.E.
EDUCATION AND CERTIFICATION
B.S., Civil Engineering, 2006 – Clemson University

CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Converse is a Senior Project Engineer and has been with Gray Engineering since February of 2014.  He has over 5 years of experience in land development and planning, and another 5 years working with the SCDOT.  He started his professional career working with his father doing surveying in West Virginia. His primary duties with Gray Engineering include the design and stormwater permitting of residential and commercial projects.  His specialties are flood studies, CAD modeling, hydraulics and hydrologic design, storm drainage design, grading plans, roadway design, and stormwater/environmental permitting.

 

J. DERREK PULLEY, E.I.T.
EDUCATION AND CERTIFICATION
B.S., Civil Engineering, 2014 – Clemson University
A.S., Criminal Justice, 2006 – Piedmont Technical College

CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Pulley has been with Gray Engineering since September 2014 and has experience in sitework design with residential and industrial projects. His range of involvement with design includes site layout plans, grading and drainage plans, storm drain design, stormwater management design (SWPPP), and phased erosion control plans. Mr. Pulley is experienced in AutoCAD Civil 3D, Microsoft Office, Hydraflow, and Sedcad 4.

 

CRAIG J. RATHKE
EDUCATION AND CERTIFICATION
B.S., Marketing, 1993 – University of Connecticut
B.S., Business Administration, 1993 – University of Connecticut
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Rathke, with Gray Engineering since 2000, is a Senior Project Designer with extensive experience in land planning, subdivision layout, permitting, sanitary sewer design, sewer trunkline design, road design, site grading, storm drain design, and color project rendering. He has a wide-ranged knowledge of Autodesk Land Desktop, Civil 3D, Hydraflow, Photoshop, M-Color, and Autodesk Impression which allows him to quickly assist the Project Management Team as needed.

 

CHRIS F. PRZIREMBEL
EDUCATION AND CERTIFICATION
Bachelor of Science, Biology, 1986 – Southern Wesleyan University
Course Work in GIS and Surveying – Greenville Technical College
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mr. Przirembel has been with Gray Engineering since 2004, is a Project Designer with extensive experience in land planning, permitting, sanitary sewer design, potable water line design, and pump stations and sanitary sewer and potable water field testing. He has a wide-ranged knowledge of Autodesk Land Desktop, Civil 3D and WaterCad which allows him to quickly assist the Project Management Team as needed.
Prior to his arrival at Gray Engineering, Mr. Przirembel worked in the chemical industry for 16 years in the areas of research and development, manufacturing and technical sales support.

 

JOYCE GRAY, OFFICE MANAGER
CAREER SUMMARY
Mrs. Gray helped found Gray Engineering Consultants, Inc. in 1984 and is currently the office manager.

 

 

 

RHONDA HILDERBRAN, ACCOUNTING MANAGER
CAREER SUMMARY AND TECHNICAL EXPERIENCE
Mrs. Hilderbran has been with Gray Engineering since 1995, and has worked in Marketing as well as an Administrative Assistant  and Accounting Manager role.