We understand what it takes to thrive incomplex, challenging & highly competitive market.We hand-pick members who are experienced leaders for Retained Executive Search & Consulting Services.We take the utmost care in identifying people to join us as well as developing home-grown talent.

We are specialists in our domain and our each team member has acted as a unique catalyst in driving our business with increasing growth rate & thus helped us achieve the desired success paradigm. We have efficiently developed a diverse and talented team across all areas of the business.

John Vijayarangam

CEO & Managing Director 

John has over 35 years of experience in Human Resources in the Asia Pacific with work experience in Indonesia (20 years), Australia, India, and in the Asia Pacific. He has a Masters Degree in Human Resources from XLRI (Jamshedpur, India), an Advanced HR Diploma from (IIM Ahmedabad) along with a Master of Business by Research (Competency Based HR Systems), Monash University, Australia which was upgraded to a PhD program and is ongoing.

More info

Ruchika Gokarn

Partner, Executive Coach

Ruchika is an Executive Recruiter and HR Consultant who brings over 17 years of experience in Human Resources within established as well as new organisations in different sectors in UK, India and Indonesia.

More info

Servasius M. Le’o

Servasius Le’o is currently Senior HR Consultant at PT Potentia HR Consulting, with over 20 year experience in HR Consulting and Executive Search. He has a Bachelors Degree from the University of Borobudur, Indonesia and also a Law Degree from Faculty of Management and Faculty of Law, University of 17 Augustus 1945, Indonesia.

More info

Wina Soeroso

Wina is a Senior HR Consultant at PT Potentia HR Consulting, with more than 13 years of professional experience in executive search and in various spectrums of HR activities including staffing and recruitment, IR, and performance evaluation. She has experience in middle manager to senior executive level recruitment for Banking and Financial Institutions, Mining, Consumer Goods, Marketing Research and Manufacturing industries, and Logistics.

More info


Fitri is a graduate from the University of Indonesia having majored in Business Administration. Fitri has a track record of success in the Executive Search Industry and has worked with both multinational and national clients from various industries such as: Manufacturing, Telecommunication, FMCG, Information Technology, Flavor & Fine Fragrance, Chemical, Engineering and Electronic.

More info

S. Thiagarajan

Board Level Management Consultant

S. Thiagarajan is a Board Level Management Consultant with over 30 years of experience ( BE Mech / MBA from IIM A) assisting medium and small scale industries in areas of Strategy, Marketing and World Class Manufacturing practices. Specific areas include strategizing for growth in a highly competitive market even in times of economic slowdown, forecasting, market / product segmentation, pricing strategies and team building and motivation.
World class manufacturing practices aimed at zero defects and increased productivity.

More info
Please follow the link for more details about our Offices & Consultants Worldwide:

Cornerstone Global offices

Cornerstone Consultants Worldwide