Daniel Atanasov

Index-derived profile: Jane Street Quantitative Trader in London (from 2021; index-only), previously a Jane Street trading intern (2020). Education listed as Sofia University St. Kliment Ohridski (2016-2019) and Sofia High School of Mathematics (2008-2016). Olympiad record: IOI 2015 silver, IOI 2016 and IMO 2016 silver (Bulgaria); ACM-ICPC World Finals 2018 with Sofia University. Employment claims rest on the profile index, not primary-source confirmation.

Notes6

• UNRESOLVED. The profile index reports Daniel Atanasov as Quantitative Trader at Jane Street (London, 2021-present) and a Jane Street Summer (Trading) Intern in 2020; both are index-only claims with no primary-source company page, press item, or self-published page confirming them, and no independent primary source ties the LinkedIn profile to the Olympiad identity. Jane Street is a quantitative trading/market-making firm, so if the index is accurate the role is a genuine quant trading role and the 2020 summer internship is a real trading internship (not a student insight program). Verdict is UNRESOLVED because every employment claim rests on the profile index alone, which is not primary-source confirmation.Sep 2026
• Quant employment verification UNRESOLVED. The profile index reports Daniel Atanasov as Quantitative Trader at Jane Street (London, 2021-present) and a Jane Street Summer (Trading) Intern in 2020; both are index-only claims with no primary-source company page, press item, or self-published page confirming them, and no independent primary source ties the LinkedIn profile to the Olympiad identity. Jane Street is a quantitative trading/market-making firm, so if the index is accurate the role is a genuine quant trading role and the 2020 summer internship is a real trading internship (not a student insight program). Verdict is UNRESOLVED because every employment claim rests on the profile index alone, which is not primary-source confirmation.
• Index-derived LinkedIn profile (Bulgaria-based; Sofia University St. Kliment Ohridski and Sofia High School of Mathematics) reports Quantitative Trader at Jane Street, London, from 2021 - the index is the only source for this role.Sep 2026
• Reported past roles (index-only): Jane Street Summer/Trading Intern 2020 (London), Machine Learning Engineer at Gradient Flow 2018-2019 (Sofia), and Algorithms teacher at Sofia High School of Mathematics 2017-2018.Sep 2026
• IMO 2016 (Hong Kong, Bulgaria): Silver medal, 26/42 points (7,1,1,7,3,7), team score 68 - primary source, IMO official results.Jul 2016
• IOI 2015 (Bulgaria): Silver medal, rank 54, 373.91/600; IOI 2016: 224/600, rank 164 - primary source, IOI official statistics.Aug 2015
• Gradient Flow (Sofia) is a machine-learning/deep-learning consultancy, not a quantitative-finance firm; the 2018-2019 ML Engineer role there is a software/ML role, not quant trading.2026
• Education (index-only): Sofia University St. Kliment Ohridski 2016-2019 and Sofia High School of Mathematics 2008-2016.Sep 2026
• ACM-ICPC World Finals 2018: competed for Sofia University team FMI_BG (Anton Chernev, Daniel Atanasov, Ivo Dilov), team rank 82.Apr 2018
• Competitive-programming handle 'daninnm' (Codeforces) is linked to this IOI contestant by the Competitive Programming Hall of Fame profile.2026
• Bulgarian competitive-programming platform profile (action.informatika.bg) for daninnm lists name Daniel Atanasov, city Sofia, born 22 January 1997 - consistent with an IOI 2015 / IMO 2016 school-age contestant.2026