Our Team

Gary Green_LRGary Green ♦ Chief Executive Officer

Gary has been a leader in the design and deployment of computer networks, communications infrastructure and workflow solutions for hundreds of organizations in various sizes. Prior to
founding Green Technology Services, Gary created and ran several businesses, including serving as the Director of IT and Facilities at Corporate Synergies Group. In his over seventeen years in IT, he has also excelled in leadership roles for companies such as XTel Communications, Iridian Technologies, and Healthcare Network Development Inc.

IMG_0179John Giordano ♦ Managing Partner

John has over 30 years of experience working in the computer industry from tech support to development to management and ownership.  John comes to Green Technology after owning two other IT companies based in the South Jersey area over the last 15 years.  Prior to this, John was Vice President at Arvida Mortgage, Vice President, of Cobb Partners, and held management positions at Users Incorporated, Van Guard, GE Capital, amongst others throughout his career.  Throughout his career his primary goal was to help businesses and individuals to capitalize on their technology investments and assist them in meeting their goals and objectives.

IMG_0164Michael Peltz ♦ Major Accounts & Network Engineer

Michael Peltz is a graduate of Suffolk County College in New York, where he obtained a degree in Humanities. In addition to this degree, Michael obtained an NC Certification from Surry Community College in 1996. Michael is an IT Engineer with over 18 years of experience, and holds several certifications in firewalls, phone systems, and security. He is also a Cisco-Certified Network Professional (CCNP) and is in the process of becoming a Cisco-Certified Internet Expert (CCIE). Since the 1990s, Michael has held high-level IT positions for reputable firms such as XTel Communications, Corporate Synergies Group, Cardiologist Consultants of Philadelphia. Prior to joining the GreenTech team, Michael most recently served as the Director of Network Operations for Hill International in Philadelphia.

Vaughn Groce ♦ Director of Operations

Vaughn Groce has over 15 years of experience working in the computer industry from tech support to training to management. During this time, he has gained the analytical, organizational and leadership skills necessary to excel in his role as Support Desk Manager at Green Technology Services.

Vaughn has worked for several different companies over the past 15 years, including Comcast and Salem Community College, and has also owned his own business. It is in these roles that he excelled in management and client relations. Vaughn’s focus has always been on helping clients reach their technology goals.

Colleen D. Gjefle ♦ Website Design & Management

Colleen D. Gjefle began her career as a computer programmer with the US Air Force, but was quickly moved into a computer graphics / communications position once it was discovered that she was an artist and photographer. This experience gave Colleen a great start in not only computer graphics, but in all areas of general computer use. Colleen credits this training and education for shaping her entire career. With her artistic background and the blossoming of the internet, moving into the field of website design was a logical and natural progression.  In addition to website design and development, she also creates traditional print design products for the company.

Ryan Redfield ♦ Network Administrator

Ryan is a graduate of DeVry University with a BS degree in Networking and Communications Management. His career started off managing the computer systems at a mid-size car dealership in PA before his first help desk position for the County of Salem in NJ. With 11 years of experience in his pocket, Ryan has held positions ranging from basic help desk to managing an IT department. Now he is the Network Engineer dedicated to bringing the clients of Green Technology Services the very best services and support available, every day.


Michael Giordano
♦ Website Department

Mike Giordano, a graduate of Stockton University, received his Bachelor’s degree in Graphic Arts in 2015. Beginning as a graphic design major, Mike ended up studying web design later on in his college career and then interning here at GTS during his senior year.  Upon graduation, Mike was hired to be the next member of the web department, and has since been learning and growing in the web design field.


Dharmik Pandya ♦ IT Technician

Dharmik came to us just out of Rowan University where he studied Computer Science and also worked in the Student Life Group. This group of young people provided tech support for the students at Rowan as well as the teaching staff there on campus.


Laurence Kelly ♦ Service Desk Technician

Laurence has Windows, MAC and Linux support experience and was the sole IT person at Appel Farms in Elmer, NJ for several years. He also has experience with security cameras, wiring and phone systems. This is Laurence’s second career after having spent over twenty years as a photojournalist for several regional publications.

Diana Hughes ♦ Office Manager

Brandon Heck ♦ Sales & Marketing