Artidjo Alkostar's career in law began in 1976. Initially, he was a lecturer at the Faculty of Law at Universitas Islam Indonesia at
Yogyakarta. In 1981, he became part of the Yogyakarta Legal Aid Institute, serving as deputy director from 1981 to 1983 and director from 1983 to 1989.
Supreme Court Artidjo Alkostar started his career as a supreme judge in 2000, and retired in 22 May 2018. During his 18 years of service, he completed 19,708 case files at the Supreme Court. He handled various major cases, such as the case of the Hambalang sports center project, the bribery case of meat imports, and the bribery case of the chairman of the
Constitutional Court. Artidjo's became a prominent Supreme Court justice when he disagreed with two other judges in the case of former President
Suharto and the
Bank Bali scandal with defendant
Djoko Soegiarto Tjandra. In the Djoko Tjandra case, he concluded that the defendant was guilty, sentencing him to 20 years, although two other chief justices acquitted him. The verdict of the case introduced a dissenting opinion from Artidjo which gave Artidjo prominence. While joking, he added that he had made progress, because when he was a lawyer he often lost cases because he did not give bribes to judges and prosecutors. ==Personal life==