All medalists.
IMO & IOI, including honourable mentions.
JSJosip SaratlijaCroatiaIMO2006GoogleSoftware EngineerIndexed profileJMJossy Milagros Alva GutiérrezPeruIMO2005 · 2006 · 2007Competition recordBronze medal · Honourable mentionIndexed profileJBJosue BautistaPeruIMO2024 · 2025Competition recordHonourable mention · Bronze medalJBJosué Benjamín García PiscoyaPeruIMO2010Competition recordBronze medalJFJosué Francisco Hernández VegaNicaraguaIMO2015Competition recordHonourable mentionAutumn profileJWJos WinkinLuxembourgIMO2024Technical University of MunichStudentische HilfskraftIndexed profileJSJoud SalehSaudi ArabiaIMO2017Competition recordBronze medalIndexed profileJKJoung Keun LimRepublic of KoreaIMO1995 · 1996Competition recordSilver medalJSJouni SeppanenFinlandIMO1994 · 1995ReaktorSenior ConsultantIndexed profileJAJovan ArizanovićSerbiaIMO2020Vs1 CloudI am a senior full-stack developerIndexed profileJBJovan BenginSerbiaIOI2019 · 2020 · 2021 · 2022Mathematical Institute of the Serbian Academy of Sciences and ArtsResearch InternAutumn profileJGJovan GerbscheidNetherlandsIMO2018 · 2019 · 2020Competition recordBronze medal · Gold medalIndexed profile
Jovan TasevNorth MacedoniaIMO2013 · 2014UBSQuantitative AnalystAutumn profile
Jovan ToromanovićSerbiaIMO2018 · 2019 · 2020Jump TradingQR/QTAutumn profileJVJovan VukmirovićYugoslaviaIMO1966Competition recordSilver medalJVJovan VukovićBosnia and HerzegovinaIMO2020 · 2022Competition recordBronze medal · Silver medalJSJovian SoejonoSwitzerlandIOI2024 · 2025Competition recordSilver medal · Bronze medalIndexed profileJSJovian SoejonoSwitzerlandIMO2024 · 2025 · 2026Competition recordHonourable mention · Gold medalIndexed profileJNJovilė NavickaitėLithuaniaIMO2024Competition recordHonourable mentionJSJoydip SahaBangladeshIMO2018Competition recordBronze medalAutumn profileJFJože FabčičYugoslaviaIMO1986Competition recordBronze medalJBJozef BednárikCzechoslovakiaIMO1981Competition recordSilver medal
Jozef BodnárSlovakiaIMO2004 · 2005Morgan StanleyQuantitative Model Auditor ConsultantAutumn profileJBJožef B. VargaYugoslaviaIMO1974 · 1975Competition recordGold medal · Silver medal
Jozef FülöpSlovakiaIMO2020QuadratureQuantAutumn profileJozef FülöpSlovakiaIOI2019 · 2020QuadratureQuantAutumn profileJJJozef JirásekCzechoslovakiaIMO1979Univerzita 'Pavla Jozefa Šafárika' v KošiciachAssociate ProfessorIndexed profileJMJozef MarkoSlovakiaIOI2013ElevenLabsEngineeringIndexed profileJPJózef PrzytyckiPolandIMO1971Competition recordBronze medalJTJozef TvarožekSlovakiaIOI2001 · 2002Competition recordSilver medalIndexed profileJZJozef ZlomekCzech RepublicIOI1999VobileSenior R&D EngineerIndexed profileJBJózsef BaloghHungaryIMO1989 · 1990University of Illinois Urbana-Champaignasst. profIndexed profileJFJózsef FritzHungaryIMO1960 · 1961Hungarian Academy of Sciencesregular memberIndexed profileJKJózsef KótaHungaryIMO1961 · 1962Competition recordGold medal · Silver medalJPJózsef PelikánHungaryIMO1963 · 1964 · 1965 · 1966Competition recordSilver medal · Gold medalJAJuan Alberto Vargas MesénCosta RicaIMO2005Grupo Montecristo Costa RicaDesarrollador de Ciencia de DatosIndexed profileJAJuan Andrés DodykArgentinaIMO2008Competition recordBronze medalJAJuan Angel CappaArgentinaIMO1997Competition recordHonourable mention
Juan Brieva RamírezSpainIMO2019Université Paris Cité (IMJ-PRG)M2 Master of Fundamental Mathematics studentAutumn profileJCJuan Camilo Azuero MutisColombiaIMO2010 · 2011SumzHead of Advanced AnalyticsIndexed profileJCJuan Camilo GomezColombiaIMO1989 · 1990Competition recordHonourable mention · Silver medalJCJuan Camilo MelgarejoColombiaIMO2025 · 2026Competition recordHonourable mentionIndexed profileJCJuan Carlos Martinez NietoColombiaIMO1987Competition recordBronze medalJCJuan Carlos Ortiz RhotonMexicoIMO2012 · 2013 · 2014 · 2015Competition recordHonourable mention · Silver medal · Gold medalJCJuan Carlos RiveraColombiaIMO1991Competition recordBronze medalJCJuan Carlos Sigler PriegoMexicoIOI2017Jane StreetSoftware EngineerAutumn profileJCJuan Carlos Uribe VegaColombiaIMO2002Competition recordHonourable mentionJCJuan Carlos VeraColombiaIMO1989 · 1991Competition recordHonourable mention · Bronze medalJCJuan Carlo VieriIndonesiaIOI2022National University of SingaporeTeaching AssistantIndexed profileJDJuan D. Gonzales CobasSpainIMO1986Competition recordBronze medalJEJuan Esteban ReyesColombiaIMO2020 · 2021Competition recordSilver medalAutumn profileJFJuan Fernando Rodríguez RodríguezHondurasIMO2026Competition recordHonourable mentionJGJuan Gabriel KostelecSloveniaIMO2012 · 2013 · 2014Competition recordHonourable mention · Bronze medalJIJuan Ignacio FuxmanArgentinaIMO1997 · 1998Competition recordBronze medalJIJuan Ignacio Restrepo LozanoColombiaIMO2003 · 2004MetaSenior Software EngineerIndexed profileJIJuan Ignacio Valero VillanuevaUruguayIMO2017MarvikSenior Machine Learning EngineerIndexed profileJGJuanita GiraldoColombiaIMO2022 · 2023Competition recordHonourable mentionJJJuan José González HerreroSpainIOI2009FreelanceSoftware DeveloperIndexed profileJJJuan José LäderachArgentinaIOI2026Competition recordBronze medalIndexed profileJJJuan José Madrigal MartínezSpainIMO2008Logos ResearchResearch ScientistIndexed profile
Jovan TasevNorth MacedoniaIMO2013 · 2014UBSQuantitative AnalystAutumn profileJovan ToromanovićSerbiaIMO2018 · 2019 · 2020Jump TradingQR/QTAutumn profileJVJovan VukmirovićYugoslaviaIMO1966Competition recordSilver medalJVJovan VukovićBosnia and HerzegovinaIMO2020 · 2022Competition recordBronze medal · Silver medalJSJovian SoejonoSwitzerlandIOI2024 · 2025Competition recordSilver medal · Bronze medalIndexed profileJSJovian SoejonoSwitzerlandIMO2024 · 2025 · 2026Competition recordHonourable mention · Gold medalIndexed profileJNJovilė NavickaitėLithuaniaIMO2024Competition recordHonourable mentionJSJoydip SahaBangladeshIMO2018Competition recordBronze medalAutumn profileJFJože FabčičYugoslaviaIMO1986Competition recordBronze medalJBJozef BednárikCzechoslovakiaIMO1981Competition recordSilver medalJozef BodnárSlovakiaIMO2004 · 2005Morgan StanleyQuantitative Model Auditor ConsultantAutumn profileJBJožef B. VargaYugoslaviaIMO1974 · 1975Competition recordGold medal · Silver medalJozef FülöpSlovakiaIMO2020QuadratureQuantAutumn profileJozef FülöpSlovakiaIOI2019 · 2020QuadratureQuantAutumn profileJJJozef JirásekCzechoslovakiaIMO1979Univerzita 'Pavla Jozefa Šafárika' v KošiciachAssociate ProfessorIndexed profileJMJozef MarkoSlovakiaIOI2013ElevenLabsEngineeringIndexed profileJPJózef PrzytyckiPolandIMO1971Competition recordBronze medalJTJozef TvarožekSlovakiaIOI2001 · 2002Competition recordSilver medalIndexed profileJZJozef ZlomekCzech RepublicIOI1999VobileSenior R&D EngineerIndexed profileJBJózsef BaloghHungaryIMO1989 · 1990University of Illinois Urbana-Champaignasst. profIndexed profileJFJózsef FritzHungaryIMO1960 · 1961Hungarian Academy of Sciencesregular memberIndexed profileJKJózsef KótaHungaryIMO1961 · 1962Competition recordGold medal · Silver medalJPJózsef PelikánHungaryIMO1963 · 1964 · 1965 · 1966Competition recordSilver medal · Gold medalJAJuan Alberto Vargas MesénCosta RicaIMO2005Grupo Montecristo Costa RicaDesarrollador de Ciencia de DatosIndexed profileJAJuan Andrés DodykArgentinaIMO2008Competition recordBronze medalJAJuan Angel CappaArgentinaIMO1997Competition recordHonourable mentionJuan Brieva RamírezSpainIMO2019Université Paris Cité (IMJ-PRG)M2 Master of Fundamental Mathematics studentAutumn profileJCJuan Camilo Azuero MutisColombiaIMO2010 · 2011SumzHead of Advanced AnalyticsIndexed profileJCJuan Camilo GomezColombiaIMO1989 · 1990Competition recordHonourable mention · Silver medalJCJuan Camilo MelgarejoColombiaIMO2025 · 2026Competition recordHonourable mentionIndexed profileJCJuan Carlos Martinez NietoColombiaIMO1987Competition recordBronze medalJCJuan Carlos Ortiz RhotonMexicoIMO2012 · 2013 · 2014 · 2015Competition recordHonourable mention · Silver medal · Gold medalJCJuan Carlos RiveraColombiaIMO1991Competition recordBronze medalJCJuan Carlos Sigler PriegoMexicoIOI2017Jane StreetSoftware EngineerAutumn profileJCJuan Carlos Uribe VegaColombiaIMO2002Competition recordHonourable mentionJCJuan Carlos VeraColombiaIMO1989 · 1991Competition recordHonourable mention · Bronze medalJCJuan Carlo VieriIndonesiaIOI2022National University of SingaporeTeaching AssistantIndexed profileJDJuan D. Gonzales CobasSpainIMO1986Competition recordBronze medalJEJuan Esteban ReyesColombiaIMO2020 · 2021Competition recordSilver medalAutumn profileJFJuan Fernando Rodríguez RodríguezHondurasIMO2026Competition recordHonourable mentionJGJuan Gabriel KostelecSloveniaIMO2012 · 2013 · 2014Competition recordHonourable mention · Bronze medalJIJuan Ignacio FuxmanArgentinaIMO1997 · 1998Competition recordBronze medalJIJuan Ignacio Restrepo LozanoColombiaIMO2003 · 2004MetaSenior Software EngineerIndexed profileJIJuan Ignacio Valero VillanuevaUruguayIMO2017MarvikSenior Machine Learning EngineerIndexed profileJGJuanita GiraldoColombiaIMO2022 · 2023Competition recordHonourable mentionJJJuan José González HerreroSpainIOI2009FreelanceSoftware DeveloperIndexed profileJJJuan José LäderachArgentinaIOI2026Competition recordBronze medalIndexed profileJJJuan José Madrigal MartínezSpainIMO2008Logos ResearchResearch ScientistIndexed profile