Sergio Vieri

Sergio Vieri is a software engineer based in Hong Kong SAR and, per LinkedIn-derived index data, a Software Engineer at Jane Street since 2023. He represented Indonesia at the International Olympiad in Informatics, earning a bronze medal at IOI 2016 and a silver medal at IOI 2017. His GitHub account (sergiovieri) links the personal site vieri.tech, and the IOI statistics profile for him cross-links that same LinkedIn URL and the Codeforces handle sergiovieri, tying the Olympiad identity to the engineer profile. Enrichment records prior software engineering work at Google Singapore (2021-2023) and internships at Google and Microsoft. All employment and education details beyond the IOI/GitHub profile are index-derived and not independently confirmed by a primary source.

Notes5

• Quant employment verification: CONFIRMED. Index-only LinkedIn enrichment reports an actual role — Software Engineer at Jane Street since 2023 (Hong Kong SAR) — and the identity is supported: the IOI statistics profile for Sergio Vieri (Indonesia) links the same LinkedIn (sergio-vieri-01971a15b) and Codeforces handle, tying the Olympiad contestant to the engineer. Employer classification: Jane Street is a quantitative trading firm (market making and proprietary systematic trading), so the role is squarely in quantitative finance. Caveat: the role itself is index-derived and NOT independently confirmed by a Jane Street primary source (janestreet.com showed no matching page); the identity link is primary-source. Google and Microsoft roles are not quant-finance employers.Jan 1, 2023
• Index-only claim (not independent primary-source confirmation): LinkedIn enrichment reports current role Software Engineer at Jane Street, Hong Kong SAR, from 2023; Jane Street is a quantitative trading firm (market making / proprietary trading).Jan 1, 2023
• Identity cross-checked: the IOI statistics profile for Sergio Vieri (Indonesia) links the same LinkedIn (sergio-vieri-01971a15b) and Codeforces handle (sergiovieri) surfaced in the caller lead, so the IOI 2016/2017 contestant and the Jane Street engineer are the same person.Aug 4, 2017
• IOI 2017 (Kazan) silver medal, rank 71, score 256.52/600, representing Indonesia.Aug 4, 2017
• IOI 2016 (Kazan) bronze medal, rank ~142, score 251/600, representing Indonesia.Aug 19, 2016
• GitHub sergiovieri (uid 9908867) lists personal site vieri.tech; the handle matches the Codeforces handle sergiovieri cited on his IOI stats profile, supporting the same-person link between the GitHub account and the IOI contestant.Jan 1, 2022
• Index-only claim: LinkedIn enrichment reports prior Software Engineer at Google Singapore 2021-2023 (not a quant-finance employer).Jan 1, 2021
• GitHub account sergiovieri (uid 9908867) lists personal site vieri.tech and 14 followers; the handle matches the Codeforces handle sergiovieri on the IOI profile, supporting the match.Jan 1, 2022
• Index-only claim: LinkedIn enrichment reports Google internships in Singapore (Software Engineer Intern 2020; Research & Machine Intelligence STEP Intern 2019) and a Summer Intern at Microsoft Jakarta in 2015.Jan 1, 2020
• Index-only claim: LinkedIn enrichment lists education as National University of Singapore.Jan 1, 2017
• The IOI stats profile lists additional handles — Codeforces sergiovieri and Kattis sergio.vieri — giving two more competitive-programming identities tied to the same person.Aug 4, 2017
• Unverified lead (identity not established): TalkChess forum threads discuss 'Sergio Vieri 384x30b networks' used in chess-engine NNUE training, suggesting a namesake or possibly the same person with chess-engine work; no source ties it to this profile, so it is not attributed.Jan 1, 2024