He is currently the President Commisioner of PT Pertamina Hulu Energy, the sub-holding upstream business of Pertamina (Persero).
He is a Chartered Financial Analyst (CFA) and a Certified Investment Advisor, Certified Underwriter, and Certified Broker/dealer. He obtained his MBA from IPMI Jakarta in 1988.
He was also the Practitioner and Consultant of Management Strategy and Investment. Rinaldi was the CEO of PT TELKOM INDONESIA (Telkom) from 2007 to 2012. He was also the CFO in the same company from 2004 to 2007, and the Commisioner from 2014 to 2019. Graduating from the prestigious engineering university ITB in Bandung, he continued his career as a field engineer in Schlumberger Overseas in North-sea Scotland, before moving to Siemens. His financial career started in Citibank in 1988. He was appointed as Director of Investment Banking from 1997 to 2001 in Bahana Securities, and subsequently was President Director from 2001 to 2003.