Jayapal had served on some sub Committees of the Institute of Certified Public Accountants of Singapore (ICPAS). He was a council member of ACCA, Singapore Branch for about ten years in various capacities. He was also an International Assembly member of Association of Certified Chartered Accountants (ACCA) for two years. He was an active member of British Alumni being in the committee for about ten years in various capacities including being the Vice President. Jayapal has been an associate consultant for National Productivity Board of Singapore and was trained in Japan.

Jayapal was one of the Founder Member and Past President of the Institute of Management Consultant and served in the council for 12 years in various positions. To date, Jayapal has about 25 years strategic business and management experience, including being the CEO of London Listed Company and help restructuring many companies in business, finance and management.