In 1645 he arrived in Batavia, Dutch East Indies. He became Bookkeeper in 1648 and Underbuyer in 1649. He became Secretary to the Dutch Council of the Indies. He travelled with ambassador Joan Cunaeus to Persia that year, and wrote an account of the voyage. They were received by the Shah Abbas II with great festivity. Even before his voyage came to an end, in 1652 he was promoted to Buyer. On his return to Batavia, he took up a post in the office of the Bookkeeper-General, for whom he deputed for a long time, and whom he succeeded in 1657. Meanwhile, he had married the fifteen-year-old Petronella Maria Wonderaer, daughter to the Receiver-General. In 1659 he was placed in charge of the Company's clerical and administrative staff in Batavia. In 1661, he became schepen van Batavia.
Career
On 12 June 1663, Cornelis Speelman was appointed Governor and Director of Dutch Coromandel, but was suspended by the Lords Seventeen, being accused of having illegally engaged in private trading. He had bought a diamond for his wife and later re-sold it because she had not liked it. Despite his strenuous protests, the court in Batavia wanted to make an example of him and he was sentenced to a 15 months suspension and a fine of 3,000 guilders. In 1666, he was named admiral and superintendent of an expedition to Makassar. On 18 November 1667, he concluded the so-called Bongaais Treaty. In the same year, he was named Commissioner of Amboina, Banda and Ternate. Consequently, he became Counsellor-extraordinary to the Dutch Council of the Indies. He travelled once again, in 1669, as admiral of another expedition to Makassar where he completely subjugated the kingdom, receiving a gold chain and medallion in recognition of this the following year. He became a full Counsellor of the Indies on 23 March 1671. The following year he was admiral of a fleet sent against the French. In December 1676, he led an expedition to Central Java, supporting the ruler of Mataram who was facing the Trunajaya rebellion. On Java's East Coast, he went to war against the rebel leader Trunajaya. It took some time before peace was re-established. He was called back to Batavia at the end of 1677 and on 18 January 1678 named First Counsellor and Director-General of the Indies. Also in that year he was appointed President of the College van Schepenen in Batavia. On 29 October 1680 he was named Governor-General, a post he took up on 25 November 1681, succeeding Rijckloff van Goens. During the term of office of Cornelis Speelman as Governor-General, the Sultan of Ternate was defeated. He ceded all his lands of his kingdom to the Company. Speelman also subdued the city ofBantam. Cornelis Speelman died on 11 January 1684 in the Castle at Batavia. His funeral was accompanied with great clamour and splendour, for which no pains or monies were spared. He was buried in the Kruiskerk to the salute of 229 cannon shots. He was followed as Governor-General by Johannes Camphuys.