All medalists.
IMO & IOI, including honourable mentions.
JCJulio César Díaz CalderónMexicoIMO2012Varmond SchoolIndexed profileJGJulio GutiérrezPeruIMO2001UTEC - Universidad de Ingeniería y TecnologíaDocenteIndexed profileJRJulio RiveraEcuadorIMO2006Competition recordHonourable mentionJJJulius JonušasLithuaniaIMO2008enspiredSenior Development ExpertIndexed profileJVJulius VerrelGermanyIMO1995 · 1996Competition recordSilver medal · Bronze medalJBJuliusz BaneckiPolandIMO2019 · 2020 · 2021Competition recordSilver medal · Gold medalIndexed profileJPJuliusz PhamPolandIOI2016HuaweiInżynier algorytmówIndexed profileJAJullanar AlshahoudSyriaIMO2016Competition recordHonourable mentionJCJumageldi ChariyevTurkmenistanIMO2006 · 2007Competition recordSilver medal · Honourable mentionJAJun AdachiJapanIMO2003Competition recordBronze medalJHJune Hyuk JungRepublic of KoreaIMO2003Brown UniversityProfessorIndexed profileJGJung Gun LimRepublic of KoreaIOI1998 · 1999Epic GamesSoftware EngineerIndexed profile
Junghun JuRepublic of KoreaIMO2015 · 2016PrestoQuantitative ResearcherAutumn profileJKJung Keun ParkRepublic of KoreaIMO1992Competition recordBronze medalJCJung-Tao ChengTaiwanIMO2016 · 2017 · 2018Competition recordGold medal · Silver medalJSJunho SonSouth AfricaIMO2012Competition recordHonourable mention
Junhua ChenAustraliaIOI2020Jane StreetQuantitative ResearcherAutumn profileJJJunhwa JungRepublic of KoreaIMO2010Competition recordGold medalJBJunhwi BaeRepublic of KoreaIMO2021 · 2022 · 2023Competition recordGold medalIndexed profileJSJunhyuk SongRepublic of KoreaIOI2020 · 2021Competition recordGold medal · Silver medalJNJunichirou NakashimaJapanIMO1991Competition recordBronze medalJJJun Jie Joseph KuanSingaporeIMO2011Competition recordGold medalJZJunkai ZhangChinaIOI2022Competition recordGold medalJOJun Oh ParkRepublic of KoreaIMO2011Competition recordSilver medal
Jun Ren LimSingaporeIMO2008WintermuteAlgo TraderAutumn profileJSJun SuChinaIMO2010University of CambridgeResearch AssociateIndexed profileJKJunsu KimRepublic of KoreaIMO2020DIDEN ROBOTICSTeam LeadIndexed profileJTJun TakakuraBrazilIMO1988Competition recordHonourable mentionJZJuntao ZhangSingaporeIMO2024 · 2025Competition recordSilver medalJTJun TengChinaIMO1987AutodeskPrincipal Research EngineerIndexed profile
Jun Wei HoSingaporeIMO2006QuantedgeQuantitative ResearcherAutumn profileJWJun Wook KongRepublic of KoreaIOI1999Grepp, Inc.Team LeaderIndexed profileJYJun YanChinaIMO1996Competition recordGold medalJ(JunYang (Michael) MaNew ZealandIMO2023Competition recordHonourable mentionJPJunyao PengUnited States of AmericaIMO2016 · 2017Competition recordGold medal · Silver medalJYJun YuChinaIMO2001Competition recordGold medalAutumn profileJYJunzhao YangChinaIOI2019Competition recordGold medalJZJun ZhuangChinaIOI1989Competition recordBronze medalJIJuozapas IvanauskasLithuaniaIMO2019 · 2020Vilniaus universitetas / Vilnius UniversityResearcherIndexed profileJBJuraj BalászCzechoslovakiaIMO1984Absa GroupVice PresidentIndexed profileJFJuraj FöldesSlovakiaIMO1998dôchodcastarobnýIndexed profileJSJure SlakSloveniaIOI2012GoogleStaff Software EngineerIndexed profile
Jure VogrincSloveniaIMO2007 · 2008GEN-I, d.o.o.Senior Quantitative AnalystAutumn profileJBJürg BachmannSwitzerlandIMO2010Competition recordBronze medalJGJürgen GärtnerGerman Democratic RepublicIMO1968 · 1969Competition recordGold medal · Silver medalJRJürgen RathmannGermanyIMO1977Competition recordGold medalJRJürgen RoßmannGerman Democratic RepublicIMO1973Competition recordBronze medalJSJürgen SchefterGerman Democratic RepublicIMO1969 · 1970Competition recordBronze medal · Silver medalJWJürgen WolffGermanyIMO1989Competition recordSilver medalJKJurgis KemeklisLithuaniaIMO2022 · 2023Redwood ResearchML Research InternIndexed profileJPJurgis PašukonisLithuaniaIOI1999 · 2000 · 2001Ineffable IntelligenceMember of Technical StaffIndexed profileJŠJurica ŠpoljarCroatiaIMO2024Competition recordBronze medalJKJurij KodreSloveniaIOI2003SandozGlobal Head of Data Management, Analytics, DS & AI SolutionsIndexed profileJKJuri KaganskiyGermanyIMO2020 · 2021 · 2022 · 2023Competition recordBronze medal · Silver medalIndexed profileJKJuris KalniņšLatviaIMO1997Ventpils University ColedgeProfessorIndexed profileJKJuris KriķisLatviaIOI1996FYULDirector of EngineeringIndexed profileJGJurko GospodnetićCroatiaIOI1996Competition recordBronze medalJKJuš KocutarSloveniaIMO2021 · 2022Competition recordHonourable mentionIndexed profileJKJuš KosmačSloveniaIMO2014Competition recordBronze medalJKJussi KokkalaFinlandIOI2009GoogleSoftware EngineerIndexed profile
Junghun JuRepublic of KoreaIMO2015 · 2016PrestoQuantitative ResearcherAutumn profileJKJung Keun ParkRepublic of KoreaIMO1992Competition recordBronze medalJCJung-Tao ChengTaiwanIMO2016 · 2017 · 2018Competition recordGold medal · Silver medalJSJunho SonSouth AfricaIMO2012Competition recordHonourable mentionJunhua ChenAustraliaIOI2020Jane StreetQuantitative ResearcherAutumn profileJJJunhwa JungRepublic of KoreaIMO2010Competition recordGold medalJBJunhwi BaeRepublic of KoreaIMO2021 · 2022 · 2023Competition recordGold medalIndexed profileJSJunhyuk SongRepublic of KoreaIOI2020 · 2021Competition recordGold medal · Silver medalJNJunichirou NakashimaJapanIMO1991Competition recordBronze medalJJJun Jie Joseph KuanSingaporeIMO2011Competition recordGold medalJZJunkai ZhangChinaIOI2022Competition recordGold medalJOJun Oh ParkRepublic of KoreaIMO2011Competition recordSilver medalJun Ren LimSingaporeIMO2008WintermuteAlgo TraderAutumn profileJSJun SuChinaIMO2010University of CambridgeResearch AssociateIndexed profileJKJunsu KimRepublic of KoreaIMO2020DIDEN ROBOTICSTeam LeadIndexed profileJTJun TakakuraBrazilIMO1988Competition recordHonourable mentionJZJuntao ZhangSingaporeIMO2024 · 2025Competition recordSilver medalJTJun TengChinaIMO1987AutodeskPrincipal Research EngineerIndexed profileJun Wei HoSingaporeIMO2006QuantedgeQuantitative ResearcherAutumn profileJWJun Wook KongRepublic of KoreaIOI1999Grepp, Inc.Team LeaderIndexed profileJYJun YanChinaIMO1996Competition recordGold medalJ(JunYang (Michael) MaNew ZealandIMO2023Competition recordHonourable mentionJPJunyao PengUnited States of AmericaIMO2016 · 2017Competition recordGold medal · Silver medalJYJun YuChinaIMO2001Competition recordGold medalAutumn profileJYJunzhao YangChinaIOI2019Competition recordGold medalJZJun ZhuangChinaIOI1989Competition recordBronze medalJIJuozapas IvanauskasLithuaniaIMO2019 · 2020Vilniaus universitetas / Vilnius UniversityResearcherIndexed profileJBJuraj BalászCzechoslovakiaIMO1984Absa GroupVice PresidentIndexed profileJFJuraj FöldesSlovakiaIMO1998dôchodcastarobnýIndexed profileJSJure SlakSloveniaIOI2012GoogleStaff Software EngineerIndexed profileJure VogrincSloveniaIMO2007 · 2008GEN-I, d.o.o.Senior Quantitative AnalystAutumn profileJBJürg BachmannSwitzerlandIMO2010Competition recordBronze medalJGJürgen GärtnerGerman Democratic RepublicIMO1968 · 1969Competition recordGold medal · Silver medalJRJürgen RathmannGermanyIMO1977Competition recordGold medalJRJürgen RoßmannGerman Democratic RepublicIMO1973Competition recordBronze medalJSJürgen SchefterGerman Democratic RepublicIMO1969 · 1970Competition recordBronze medal · Silver medalJWJürgen WolffGermanyIMO1989Competition recordSilver medalJKJurgis KemeklisLithuaniaIMO2022 · 2023Redwood ResearchML Research InternIndexed profileJPJurgis PašukonisLithuaniaIOI1999 · 2000 · 2001Ineffable IntelligenceMember of Technical StaffIndexed profileJŠJurica ŠpoljarCroatiaIMO2024Competition recordBronze medalJKJurij KodreSloveniaIOI2003SandozGlobal Head of Data Management, Analytics, DS & AI SolutionsIndexed profileJKJuri KaganskiyGermanyIMO2020 · 2021 · 2022 · 2023Competition recordBronze medal · Silver medalIndexed profileJKJuris KalniņšLatviaIMO1997Ventpils University ColedgeProfessorIndexed profileJKJuris KriķisLatviaIOI1996FYULDirector of EngineeringIndexed profileJGJurko GospodnetićCroatiaIOI1996Competition recordBronze medalJKJuš KocutarSloveniaIMO2021 · 2022Competition recordHonourable mentionIndexed profileJKJuš KosmačSloveniaIMO2014Competition recordBronze medalJKJussi KokkalaFinlandIOI2009GoogleSoftware EngineerIndexed profile