OJG has a large workshop and mobile site-based team with a number of fully quali ed and experienced supervisors, tradesmen and technicians. Should a project require it, OJG is able to increase manning at relatively short notice. OJG also has a team available on a 24/7 basis to deal with any emergencies.

Sandra Stefanovich
Managing Director

Sandra is the heart and soul of the business and brings with her 15 years’ experience in the piping and fabrication industry.

Having started in the family business in an administration role in 2001, Sandra has progressively worked her way through all aspects of the business and is a strong and knowledgeable leader. Her passion to ensure that the business remains successful and true to its Vision, Mission and Values are an inspiration to the entire team.

Prior to joining OJG, Sandra was a Senior Claims Manager for a leading insurance company in Western Australia and brings this experience to her role as Managing Director.

In addition to her role, Sandra is responsible for the financial control and HR /IR management of the business.

Jason Gavranic BEng(Civil) BCom MIEAust
General Manager

Jason has more than 20 years’ experience in the construction industry, with a highly regarded history in project management through all levels of infrastructure, construction and services work with some of Australia’s leading contractors.

He has significant experience in the construction of major infrastructure and resources projects and has a sound understanding of Contract law and administration.

As General Manager, Jason is an innovative leader, utilising his strong people skills to position OJG at the forefront of the industry.

He is responsible for Business Development, the management of Health and Safety, Contract management and the general day to day operations of the business.

Milan Stefanovich
Operations Manager

Milan is the “drive” behind the business and brings with him 13 years’ experience in the piping and fabrication industry.

He has significant experience in the construction of major pipeline projects for the Water Corporation and structural steel fabrication for some of Australia’s leading mining and resources companies.

Milan started in the business in 2003 as a trade’s assistant and quickly progressed through the ranks to the Site Supervisor position. Under the direct mentorship of Obrad Gledich, the company founder, Milan embraced and embodied the legacy upon which the company was founded and ensures that it is continually built upon.

His strong work ethic and push for perfection, both on site and in the workshop, is a major factor in ensuring that OJG’s clients always receive a high quality product in a safe and timely manner.

He is responsible for the management of all projects, both on site and in the workshop, and for the coordination of all labour and equipment.

Damir Krivic
Estimating Manager

Damir started in the business as a trade’s assistant and has 10 years’ experience in the piping and fabrication industry.

He has been involved in a number of aspects of the business from fabrication in the workshop to managing site works. Damir brings this experience to his role as Estimating Manager and this enables OJG to provide competitive and realistic pricing. His experience also enables OJG to provide innovative and cost-effective solutions to our clients.

In addition to his estimating role, Damir is responsible for the purchasing requirements of the business.

Raj Siva BEng MIEAust MBA
QA / QC Manager

Raj has more than 8 years’ experience in his role as a QA / QC professional and he has a sound knowledge of heavy engineering fabrication including ship building, oil and gas, mining and piping.

He is a qualified ISO 9001:2008 QMS Lead Auditor and has completed several QC / NDT qualifications which enhance his experience in his role of QA /QC Manager at OJG.

Since joining OJG in 2013, Raj has established and implemented a new Quality Management Plan and introduced Working Procedures which have enabled OJG to attain ISO 9001 accreditation. He has also ensured that all of the welding qualifications are maintained and kept current for all of OJG’s welding employees.

He is responsible for quality control, quality assurance, document control and the implementation and compliance with all quality procedures.