All medalists.
IMO & IOI, including honourable mentions.
JTJaan TootsEstoniaIOI2013Pactum AISenior AI EngineerIndexed profileJVJaan VajakasEstoniaIOI2004 · 2005Competition recordSilver medalIndexed profileJVJaan VajakasEstoniaIMO2004 · 2005Competition recordBronze medalIndexed profileJBJaap BeetstraNetherlandsIOI1993 · 1994 · 1995Provincie Noord-HollandJuridisch adviseur Wet open overheid (Woo)Indexed profileJZJaber ZarezadehIslamic Republic of IranIMO2006Citadel SecuritiesGarden LeaveAutumn profileJCJacek ChrząszczPolandIOI1990 · 1991Competition recordSilver medalJJJacek JendrejPolandIMO2008Competition recordGold medalJPJacek PliszkaPolandIMO1991DXC TechnologyJust a name I set to match job offers I likeIndexed profileJPJacek PliszkaPolandIOI1991 · 1992Competition recordBronze medalJŚJacek ŚwiątkowskiPolandIMO1982Competition recordBronze medalJWJacek WołejszoPolandIMO1962Competition recordBronze medal
Jáchym SýkoraCzech RepublicIMO2010QminersQuantitative AnalystAutumn profileJSJácint SzabóHungaryIMO1997GoogleSoftware EngineerIndexed profileJHJack HuiHong KongIMO2005 · 2006 · 2007Deutsche BankDeveloperIndexed profileJMJack McAuliffeIrelandIMO2025 · 2026Competition recordHonourable mention · Bronze medalJMJack MurrayAustraliaIOI2007 · 2008Competition recordSilver medal · Gold medalJSJack ShottonUnited KingdomIMO2005 · 2006 · 2007Durham UniversityAssistant Professor Of MathematicsIndexed profileJBJacob Brzezinski ÄdelrothSwedenIMO2024 · 2025Competition recordHonourable mention · Bronze medalJBJacob BurnimUnited States of AmericaIOI2002GoogleStaff Software EngineerIndexed profileJCJacob CoxonUnited KingdomIMO2016 · 2017OpenAIMember of Technical StaffIndexed profileJHJacob HastrupDenmarkIMO2011 · 2012NNF Quantum Computing Programme (NQCP)Quantum Research ScientistIndexed profile
Jacob JacksonCanadaIOI2014 · 2015CursorResearchAutumn profileJKJacob KroonSouth AfricaIOI2001Competition recordBronze medalJLJacob LurieUnited States of AmericaIMO1994 · 1995Competition recordGold medal · Silver medalIndexed profileJPJacob PlachtaCanadaIOI2010DatabricksStaff Software EngineerIndexed profile
Jacob Por Loong TeoSingaporeIOI2015 · 2016 · 2018CognitionSoftware EngineerAutumn profileJRJacob Roger ShapiroUnited KingdomIMO1994Competition recordSilver medalJSJacob SteinhardtUnited States of AmericaIOI2008TransluceCo-founder and CEOIndexed profileJTJacob TsimermanCanadaIMO2003 · 2004University of TorontoProfessor Of MathematicsIndexed profileJCJacobus ConradieSouth AfricaIOI2009 · 2010Competition recordBronze medalJVJacobus Van der MerweSouth AfricaIOI2010FreelancerSenior Software EngineerIndexed profileJvJacobus van ZylSouth AfricaIMO2000CT LAB (PTY) LTDCTOIndexed profile
Jaco CronjéSouth AfricaIOI1998Cerebria.aiSenior AI EngineerAutumn profileJCJacopo ChenItalyIOI2017Home PlusCommercianteIndexed profileJDJacopo D'AurizioItalyIMO2003Liceo Scientifico Ulisse DiniDocente di ruoloIndexed profileJGJacopo Guoyi ChenItalyIMO2016 · 2017Competition recordSilver medalIndexed profileJCJacques ConradieSouth AfricaIMO2000 · 2001Competition recordBronze medalJJJacques-Henri JourdanFranceIOI2005 · 2006LMF - Laboratoire Méthodes FormellesChargé de recherchesIndexed profileJTJacques TheysBelgiumIMO1995Competition recordHonourable mentionJHJae Hong KimRepublic of KoreaIOI2006Competition recordSilver medalJKJaehwan KimNew ZealandIMO2013Competition recordHonourable mention
Jaehyeok HeoRepublic of KoreaIMO2003OP Investment ManagementPortfolio ManagerAutumn profileJKJaehyung KimRepublic of KoreaIMO2014 · 2015Competition recordSilver medal · Gold medalJKJaehyun KooRepublic of KoreaIOI2015 · 2016MOLOCOIndexed profileJHJae Hyun ParkRepublic of KoreaIOI2006 · 2007Private companyResearcherIndexed profileJKJae Kap HanRepublic of KoreaIOI1997ACROGAMESCTOIndexed profileJKJae Kyun KwonRepublic of KoreaIMO1991Competition recordBronze medalJMJae Moon YunRepublic of KoreaIMO1996LG Electronics선임 연구원Indexed profileJSJae Seung HaRepublic of KoreaIOI2000LG화학책임연구원Indexed profileJSJae Sung ParkRepublic of KoreaIOI2008 · 2009LG Energy SolutionManagerIndexed profileJCJaewon ChangRepublic of KoreaIMO2011 · 2012Competition recordGold medalJCJaewon ChoiRepublic of KoreaIMO2015 · 2016Competition recordGold medalJSJaewon SonRepublic of KoreaIOI2026Competition recordBronze medalJBJaewoo ByunRepublic of KoreaIOI2025 · 2026Competition recordGold medal · Silver medalAutumn profileJAJafar AbdurahimovUzbekistanIMO2010Samarkand Automobile Factory LLCProduction Planning EngineerIndexed profileJJJafar JafarovAzerbaijanIMO2005 · 2006 · 2007Competition recordHonourable mention · Silver medal · Bronze medalJJJafar JafarovAzerbaijanIMO2006UberSoftware EngineerIndexed profileJAJafet Alejandro Baca ObandoNicaraguaIMO2015 · 2016 · 2017Emory UniversityPh.D. CandidateIndexed profileJRJagdesh RamnananTrinidad and TobagoIMO2006University of the West Indies, St Augustine CampusTeaching AssistantIndexed profileJMJahir Manuel Cajas ToapantaEcuadorIMO2020 · 2022Competition recordHonourable mentionIndexed profile
Jáchym SýkoraCzech RepublicIMO2010QminersQuantitative AnalystAutumn profileJSJácint SzabóHungaryIMO1997GoogleSoftware EngineerIndexed profileJHJack HuiHong KongIMO2005 · 2006 · 2007Deutsche BankDeveloperIndexed profileJMJack McAuliffeIrelandIMO2025 · 2026Competition recordHonourable mention · Bronze medalJMJack MurrayAustraliaIOI2007 · 2008Competition recordSilver medal · Gold medalJSJack ShottonUnited KingdomIMO2005 · 2006 · 2007Durham UniversityAssistant Professor Of MathematicsIndexed profileJBJacob Brzezinski ÄdelrothSwedenIMO2024 · 2025Competition recordHonourable mention · Bronze medalJBJacob BurnimUnited States of AmericaIOI2002GoogleStaff Software EngineerIndexed profileJCJacob CoxonUnited KingdomIMO2016 · 2017OpenAIMember of Technical StaffIndexed profileJHJacob HastrupDenmarkIMO2011 · 2012NNF Quantum Computing Programme (NQCP)Quantum Research ScientistIndexed profileJacob JacksonCanadaIOI2014 · 2015CursorResearchAutumn profileJKJacob KroonSouth AfricaIOI2001Competition recordBronze medalJLJacob LurieUnited States of AmericaIMO1994 · 1995Competition recordGold medal · Silver medalIndexed profileJPJacob PlachtaCanadaIOI2010DatabricksStaff Software EngineerIndexed profileJacob Por Loong TeoSingaporeIOI2015 · 2016 · 2018CognitionSoftware EngineerAutumn profileJRJacob Roger ShapiroUnited KingdomIMO1994Competition recordSilver medalJSJacob SteinhardtUnited States of AmericaIOI2008TransluceCo-founder and CEOIndexed profileJTJacob TsimermanCanadaIMO2003 · 2004University of TorontoProfessor Of MathematicsIndexed profileJCJacobus ConradieSouth AfricaIOI2009 · 2010Competition recordBronze medalJVJacobus Van der MerweSouth AfricaIOI2010FreelancerSenior Software EngineerIndexed profileJvJacobus van ZylSouth AfricaIMO2000CT LAB (PTY) LTDCTOIndexed profileJaco CronjéSouth AfricaIOI1998Cerebria.aiSenior AI EngineerAutumn profileJCJacopo ChenItalyIOI2017Home PlusCommercianteIndexed profileJDJacopo D'AurizioItalyIMO2003Liceo Scientifico Ulisse DiniDocente di ruoloIndexed profileJGJacopo Guoyi ChenItalyIMO2016 · 2017Competition recordSilver medalIndexed profileJCJacques ConradieSouth AfricaIMO2000 · 2001Competition recordBronze medalJJJacques-Henri JourdanFranceIOI2005 · 2006LMF - Laboratoire Méthodes FormellesChargé de recherchesIndexed profileJTJacques TheysBelgiumIMO1995Competition recordHonourable mentionJHJae Hong KimRepublic of KoreaIOI2006Competition recordSilver medalJKJaehwan KimNew ZealandIMO2013Competition recordHonourable mentionJaehyeok HeoRepublic of KoreaIMO2003OP Investment ManagementPortfolio ManagerAutumn profileJKJaehyung KimRepublic of KoreaIMO2014 · 2015Competition recordSilver medal · Gold medalJKJaehyun KooRepublic of KoreaIOI2015 · 2016MOLOCOIndexed profileJHJae Hyun ParkRepublic of KoreaIOI2006 · 2007Private companyResearcherIndexed profileJKJae Kap HanRepublic of KoreaIOI1997ACROGAMESCTOIndexed profileJKJae Kyun KwonRepublic of KoreaIMO1991Competition recordBronze medalJMJae Moon YunRepublic of KoreaIMO1996LG Electronics선임 연구원Indexed profileJSJae Seung HaRepublic of KoreaIOI2000LG화학책임연구원Indexed profileJSJae Sung ParkRepublic of KoreaIOI2008 · 2009LG Energy SolutionManagerIndexed profileJCJaewon ChangRepublic of KoreaIMO2011 · 2012Competition recordGold medalJCJaewon ChoiRepublic of KoreaIMO2015 · 2016Competition recordGold medalJSJaewon SonRepublic of KoreaIOI2026Competition recordBronze medalJBJaewoo ByunRepublic of KoreaIOI2025 · 2026Competition recordGold medal · Silver medalAutumn profileJAJafar AbdurahimovUzbekistanIMO2010Samarkand Automobile Factory LLCProduction Planning EngineerIndexed profileJJJafar JafarovAzerbaijanIMO2005 · 2006 · 2007Competition recordHonourable mention · Silver medal · Bronze medalJJJafar JafarovAzerbaijanIMO2006UberSoftware EngineerIndexed profileJAJafet Alejandro Baca ObandoNicaraguaIMO2015 · 2016 · 2017Emory UniversityPh.D. CandidateIndexed profileJRJagdesh RamnananTrinidad and TobagoIMO2006University of the West Indies, St Augustine CampusTeaching AssistantIndexed profileJMJahir Manuel Cajas ToapantaEcuadorIMO2020 · 2022Competition recordHonourable mentionIndexed profile