Eliška Macáková

Slovak competitive programmer and mathematics/informatics olympiad medalist; IOI gold medalist (2024) and four-time IOI contestant for Slovakia (2021-2024). Represented Slovakia at IMO (2022-2024) and EGMO (2021-2024, incl. gold 2023-2024). Member of the EGOI 2026 Scientific Committee. Her LinkedIn profile lists her as a Software Engineer at Jane Street and a student at École Polytechnique (France), based in Palaiseau, France.

Notes13

• Quant employment verification: UNRESOLVED. The caller-provided lead that she worked as a 'Quantitative Researcher at Stealth' (Jul-Aug 2025) is index/LinkedIn-only and cannot be independently confirmed; the only verifiable employment signal is a LinkedIn profile (index-attributed) showing her as a Software Engineer at Jane Street, a firm that is genuinely quantitative (market-making/proprietary trading), but Jane Street is listed as a current Software Engineer role, not a quantitative-research role, and no dates, offer, or internship record confirm it beyond that single index source. No primary-source evidence (company page, press, official announcement) confirms either role, so quant employment is not confirmed.2025
• LinkedIn (index-attributed) shows her as a Software Engineer at Jane Street based in Palaiseau, France - a role/title that is a genuine quantitative trading firm but not itself a quantitative-research title, and not independently confirmed by a primary source.2025
• LinkedIn (index-attributed) lists a past role 'Quantitative Researcher at Stealth' dated 2025, with the company domain resolved to timelyai.com; both the employer identity and the quant nature are unverified and conflict with the 'Stealth' employer label, so it is recorded as index-only.2025
• Identity confirmed as the Slovak Olympiad contestant: the IMO contestant page (id 31611) lists Eliška Macáková for Slovakia, and the same person is cross-linked across IOI stats (person 7590), CP Hall of Fame, and Codeforces handle 'prvocislo' - a closed loop no namesake reproduces.2024
• IOI record for Slovakia: bronze 2021 (rank 161), silver 2022 (31), silver 2023 (36), gold 2024 (13) - four consecutive IOI appearances culminating in a top-13 gold, per the CP Hall of Fame timeline.2024
• Represented Slovakia at the International Mathematical Olympiad in 2022, 2023 and 2024; the IMO 2024 team page records a silver medal.2024
• Competes for École Polytechnique on its ICPC team (roster: Andrei-Robert Ion, Eliška Macáková, Luca Perju Verzotti), listed for the ICPC European Championship 2026 and the SWERC 2024 team's roster.2026
• Studies at École Polytechnique (Palaiseau, France), class BX27 i.e. 2024-2027, per her LinkedIn education entry; the Polytechnique news page independently describes her as a Polytechnique student - consistent, though the degree is in progress.2025
• EGMO record: contestant for Slovakia 2021-2024, with gold medals in 2023 and 2024 and silver in 2022, per her EGMO people profile.2024
• Competed at the European Girls' Olympiad in Informatics 2021-2025 and was the top individual scorer at EGOI 2024 (712 points), per EGOI statistics and a secondary encyclopedia entry.2024
• Reached Codeforces Grandmaster with a max rating of 2401 and lists herself as 'from Ecole Polytechnique'; the Codeforces handle 'prvocislo' is the anchor that ties her olympiad, university and CP identities together.2024
• Serves on the Scientific Committee of EGOI 2026 (Italy), alongside figures such as Michal Forisek - a shift from contestant to contest-organizer.2026