Deyan Hadzhi-Manich

Deyan Hadzhi-Manich is a Bulgarian competitive-programmer and mathematics student. He represented Bulgaria at the International Olympiad in Informatics (IOI) 2022, winning a silver medal (rank 76, total score 280.51). He was an RSI 2023 Scholar at the Research Science Institute (MIT), one of two Bulgarian participants, and authored the RSI research paper 'On Longest Geometrically Increasing Sequences' under MIT Mathematics direction. He attends Harvard University (class of 2028) and has worked as a Technology Intern at Man Group (2025) and an Engineering Intern at Mandel AI (2026).

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• QUANT EMPLOYMENT VERIFICATION: CONFIRMED (with scope). Actual paid internship — Technology Intern, Man Group (Jul 2025, per LinkedIn experience section), a listed global alternative investment manager whose Man AHL unit is 'one of the longest running systematic managers' (research, developers and traders of systematic investment strategies). This is a real role at a firm that genuinely operates systematic/quantitative investment. Caveat: role title is 'Technology Intern', so the role sits in Man Group's technology function, not necessarily a quant-research or trading seat; identity is supported by the IOI 2022 / Harvard '28 / RSI '23 cross-references tying the LinkedIn profile to the same person. No other quant-finance employer (bank, crypto, energy trading, market-maker) appears in the public record checked.Jul 2025
• Engineering Intern at Mandel AI (YC-backed 'autonomous supply chain agents' startup) since ~April 2026, building 'autonomous supply chains with AI agents' per the LinkedIn experience section.Apr 2026
• Technology Intern at Man Group, July 2025, listed on LinkedIn under Man Group (domain man.com), located Sofia, Bulgaria. Man Group is a listed global alternative/quantitative investment manager (systematic AHL), so this role counts as quant-industry employment if the role is confirmed.Jul 2025
• Identity: Bulgarian competitive programmer Deyan Hadzhi-Manich, IOI 2022 silver medalist (rank 76, score 280.51), LinkedIn 'Harvard ’28 | RSI ’23 | IOI Silver Medalist', Harvard class of 2028.Aug 2022
• Mandel AI (Deyan's 2026 employer) is a Y Combinator Summer 2023 'AI Coordination Layer for Supply Chain' company (YC page; ~$3.9M seed reported Mar 2026) — it is supply-chain software, NOT a quantitative-finance firm, so this role does not count as quant employment.Mar 2026
• RSI Scholar, Research Science Institute (RSI) 2023 at MIT: one of two Bulgarian participants; researched a mathematics problem under an MIT graduate-student mentor.2023
• Authored RSI 2023 math research paper 'On Longest Geometrically Increasing Sequences' (MIT Mathematics / RSI), under the direction of Yuchong Pan.2023
• Man Group is classified as a quantitative/systematic asset manager: its Man AHL business is described on man.com as a team of 'researchers, developers and traders of systematic investment strategies', confirming the firm operates in systematic/algorithmic investing.
• Man Group's student offering includes the 'AHL IDI Graduate Programme', where the AHL Investment and Data Implementation team manages AHL's quantitative models and systematic trading system, indicating that Man Group technology internships sit adjacent to systematic-trading infrastructure.
• ICPC: competes as part of a team 'Harvard Waffles' in ICPC NA East Division 2025 (team members Deyan Hadzhi-Manich, Alexandru-Raul Todoran, Benjamin Mujkic).2025
• Competitive programming handle 'ne_deyan' (Codeforces) / 'deyan'; IOI info lists Bulgaria 2022. CPHOF profile aggregates onsite results (IOI silver).2022
• High-school: High School of Mathematics 'Dr Petar Beron' in Varna, Bulgaria (2016-2024); Junior at that school described on Yale Bulgaria's page as having 'passions ... in mathematics and computer science'.