Credits the people behind mrJudge

Active Administrators

Damian Ho Xu Yang (damian, HCI JC2/2018)
Ranald Lam Yun Shao (ranaldlys, RJ Alumni (2014))
Jeffrey Lee (jeff, NUSH Year 2/2015)
Benson Lin Zhan Li (bensonlzl, HCI JC1 Rabbit/2019)
Wong Swee Chong Dave (davewongsc, NUSH Year 5/2019)
Teow Hua Jun (huajun, HCI JC2/2019)
Daniel Choo (0rang3, RI Alumni/2021)
Ng Yu Peng (ngyupeng6, HCI JC2/2019)
Lim An Jun (limanjun, HCI Year 1/2019)
Li Yue Chen (lyc, NUSH Year 3/2018)
Ryan See Weixuan (rs, BANNED RI Baby/2004)
Pang Wen Yuen (wenyuen, RI Sec 4/2015)
Wang Zhi Jian (zhijian, HCI Alumni/2015)
Tan Chien Hao (tch1001, RI Sec 3/2018)
Li Da (lida, NUSH Staff)
Gan Wei Liang (weiliang, HCI Alumni (JC2/2013))
Tan Likai (likai, Not IOI Trainer 2018)
Lim Li (limli, NUSH Alumni)
Zhang Guangxuan (guangxuan, RI Sec 4/2015)
Gabriel Goh Kheng Lin (gabrielgoh611, NUSH Year 3/2015)
Xingchen Huang (lovemathboy, NUSH Year 5/2017)
Clarence Chew Xuan Da (clarencechew, NUSH Year 3/2014)
Estelle Lee (estelle, RGS Y3/2015)
Chang Si Yuan (siyuan, RI Sec 3/2014)
Lorraine Neo (lorraineneo, RI Teacher)
Feng Jiahai (jiahai, RI Sec 4/2014)

Active Maintainers

Technical:

Ranald Lam
Gao Shan Sam
Lin Si Jie
Pang Wen Yuen

Content and Problems:

Pang Wen Yuen (RI)
Chang Si Yuan (RI)
Lim Li (NUSH)
Clarence Chew (NUSH)
Wang Zhi Jian (HCI)
Ho Jie Feng (HCI)

Developers

mrJudge 2009: Raymond Kang
mrJudge 2013: Ranald Lam
Pang Wen Yuen
mrJudge 2014 / mrJudge: Ranald Lam
Gao Shan Sam
mrJudge 2015 (Grading Backend): Ranald Lam
Gao Shan Sam