Tijam was born on January 5, 1949 in San Miguel, Manila. He attended San Beda College where he obtained a degree in Bachelor of Arts, Major in Philosophy and Political Science and graduated with magna cum laude honors in 1967. Under a full scholarship, he pursued Bachelor of Laws degree at the San Beda College of Law. He graduated with magna cum laude honors in 1971 from law school and was the salutatorian of his class. In the same year, he passed the Bar Examinations.
Career
Legal career
At the Philippine Senate, Tijam served as legal consultant who represented Senator Victor Ziga at the Senate Blue Ribbon Committee, the Senate Economic Affairs Committee, Senate Committee on National Defense and Security, Senate Ways and Means Committee, and the Senate Committee on Ethics and Privileges. Tijam worked with the Government Service Insurance System as its Assistant Vice President and Deputy Corporate Secretary and later with the Manila Hotel Corporation and the Westin Philippine Plaza as Legal Counsel and Corporate Secretary, and Comsavings Bank as Board Director. He was appointed as the presiding judge of Branch 221 of Quezon City's Regional Trial Court in 1994 and served as President of the Quezon City RTC Judges Association.
Court of Appeals
He was appointed Court of Appeals associate by then President Gloria Macapagal Arroyo in 2003 and served until 2017. Among the cases he handled was the Maguindanao massacre case where he penned a CA resolution in 2011 against former Maguindanao Governor Andal Ampatuan Sr in the case's list of respondents. Ampatuan made a petition against two CA resolution that may possibly indict him for the massacre but was junked by the court. The court also affirmed Autonomous Region in Muslim Mindanao Governor Zaldy Ampatuan as one of the suspects in the case. He also handled the case of Reynald Lim, the brother of Janet Lim-Napoles, the alleged mastermind of the Priority Development Assistance Fund scam. Lim and his sister faced charges serious illegal detention for detaining their cousin Benhur Luy which led to Napoles' conviction in 2015. Lim attempted to stop his indictment and recall an arrest warrant issued against him through a petition but the CA junked the appeal. He authored the CA decision which upheld the closure of the bankrupt Banco Filipino.
Supreme Court
On March 8, 2017, President Rodrigo Duterte appointed Tijam as the 176th Associate Justice of the Supreme Court. He replaced Arturo Brion who retired on December 29, 2016. On May 11, 2018, Tijam penned the main decision which removed Chief Justice Maria Lourdes Sereno from her post via a quo warranto petition. In June 2018, Tijam penned the main decision which dismissed the Presidential Commission on Good Government 's complaint against the August 2010 Sandiganbayan decision dismissing the PCGG case against Imelda Marcos, Rodolfo Cuenca, et.al., which had thrown out more than half of the documentary evidence presented by the PCGG because they were "mere photocopies."
Tijam was named among the finalist for the most outstanding Regional Trial Court Judges Award in 1999 which is conferred by the Foundation for Judicial Excellence. The Philippine Jaycees gave him Most Outstanding JAYCEE Award and was the recipient of the Junior Chamber International Senatorship Award which was given to him in 1997.
Personal life
Tijam is married to Maria Cynthia Cornejo Tijam, with whom he has three children.
