Juan Carlos Sigler Priego

Juan Carlos Sigler Priego is a software engineer from Mexico City, currently a Software Engineer at Jane Street, a quantitative trading firm. Per his LinkedIn profile he studied Computer Engineering and Applied Mathematics at the Instituto Tecnologico Autonomo de Mexico (ITAM, 2017-2022), where he was a competitive programmer: he represented Mexico at the International Olympiad in Informatics (IOI) 2017, winning a bronze medal, and competed in multiple ICPC World Finals. Before Jane Street he worked as an AI Engineer and Data Infra Engineer at Replit (2023-2024), a Senior Software Engineer at 99minutos.com (2021-2022), and held software engineering internships at WhatsApp, Instagram and Facebook. His professional work has been software/infrastructure engineering, not a quantitative research or trading role.

Notes4

• Quant employment verification: CONFIRMED. Juan Carlos Sigler Priego has held an actual software engineering role at Jane Street (quantitative trading firm / market maker) since June 2024, per his LinkedIn profile (enrichment index record keyed to linkedin.com/in/jcsiglerp; location New York). Identity is supported: the same name, ITAM education and Mexico City base match the IOI 2017 Mexican contestant and the ICPC contestant. Employer classification: Jane Street is a quantitative trading firm, so the role is in the quantitative-finance sector, but it is a software engineering role, not a quant research/trading role. Caveat: the sole employment evidence is the LinkedIn profile surfaced via the enrichment index; no independent primary-source (company page) confirmation was obtained, and LinkedIn could not be scraped directly.
• Career timeline (per LinkedIn profile via enrichment index): Jane Street SWE (New York) 2024-present; Replit AI Engineer 2023-2024; Replit Data Infra Engineer 2023; 99minutos.com Senior Software Engineer 2021-2022; earlier Software Engineer Internships at WhatsApp, Instagram and Facebook (Mexico City). The Meta roles are internships, not full-time positions.
• Won a Bronze medal for Mexico at IOI 2017 (International Olympiad in Informatics), score 87.94, per the IOI statistics database.
• No evidence of employment at any quantitative investment, hedge-fund, market-making, energy-trading or crypto-trading firm other than Jane Street; earlier roles were at Replit (AI/dev tooling), 99minutos (logistics) and Meta (internships).
• Competed in the ICPC: 2020-2021 World Finals (45th, Honorable Mention, team FoundTheBug.ItsMe), 2019 World Finals (43rd, Honorable Mention, team The Beat Alls), 2020 ICPC Mexico Finals 3rd place, 2018 Mexico & Central America Finals 3rd place / Bronze, all representing ITAM.
• Public contact email [contact omitted] published on his ICPC contestant profile.
• Codeforces handle Juanito98 is linked to this identity from both the IOI statistics page and the Competitive Programming Hall of Fame profile.