Comrade Eniojukan Leke Success Joined the union National Union of Hotels and Personal Services Workers (NUHPSW) in February 1992 as a branch secretary at NTI Conference Center, kaduna, one of the Arewa hotels. In July 1994 he became the State Secretary at kaduna State Council of NUHPSW while in July 1997 he was elected the State Chairman, Kaduna State Council of NUHPSW. In 1998 he became the vice Chairman of the Nigeria labour Congress (NLC) kaduna State. Also elected treasurer of Nigeria labour Congress, Kaduna State in 1999-2005.
He became the deputy president of NUHPSW in 2002 to 2005 until elected president of NUHPSW on December 4th 2005. He was at the same time chairman of the private sector unions Kaduna State from 1997-2006. He became the General Secretary of NUHPSW on Dec 1st 2014. He was elected the National auditor of the Nigeria labour Congress from 2015-2019. On the international scene:
He became vice president, world Federation of Trade Union(WFTU) in October 2016 till date. He was elected IUF-TITULAR representing Africa on the global executive committee of International Union of Food, Agriculture, Hotel, Restaurant, Catering, Tobacco and Allied Workers Associations (IUF), Member strategic leadership committee and executive committee of international union of food (IUF) from June 2023 till date and TITULAR board member of Hotel, Restaurant, Catering and Tourism (HRCT) till date