From 1986 to 1988 Peter Shivute worked as a magistrate for the Judicial Service of Zambia. He continued with his judicial career in Namibia from 1992 when he was appointed Magistrate. He rapidly rose through the ranks to reach the highest level in the Magistracy when he was appointed Regional Court Magistrate in 1999, the position he held until the year 2000 when he was appointed a Judge of the High Court, initially as an Acting Judge and later as a Judge in a permanent capacity. In 2003 he was appointed Judge President of thee High Court. As the head of the High Court and most seniorJudge at that institution, the Judge President bears the ultimate responsibility of ensuring sound administration and effective service-delivery at the High Court. Apart from administrative responsibilities, the Judge President also performs normal judicial functions.
On 1 December 2004, at the age of 41, Peter Shivute was appointed Chief Justice of the Republic of Namibia and took overall responsibility for the Namibian Judiciary. He presides over the Supreme Court of Namibia which hears and adjudicated upon appeals, including appeals which involve the interpretation, implementation and upholding of the Namibian Constitution and the fundamental rights and freedoms guaranteed in it.