Ognjen Stipetić

Croatian mathematician and quantitative trader. Represented Croatia at the International Mathematical Olympiad in 2010 (Honourable Mention) and 2011 (Bronze medal). Studied mathematics at the University of Zagreb (BSc Mathematics 2011-2014; MSc Mathematics and Statistics 2014-2016). Based in London since 2017, working at Jane Street, a quantitative trading firm and liquidity provider; the UK FCA register records him at Jane Street Financial Limited from June 2017 with controlled functions including proprietary trading and algorithmic trading, and LinkedIn lists his title as Quantitative Trader.

Notes6

• FCA register (via Tovo aggregator) lists 'ognjen stipetic' (ref OXS01267) at JANE STREET FINANCIAL LIMITED with FCA controlled functions including Algorithmic trading (Sept 2021-Jan 2026), Proprietary trader (Sept 2020-Jan 2026), Client dealing and Material risk taker; these are regulatory function approvals for Jane Street's UK regulated entity, not inference from a job title.Jun 2017
• Quant employment verification: CONFIRMED. The FCA register entry (ref OXS01267, Jane Street Financial Limited, Jun 2017-Jan 2026) is a regulatory record of an actual long-running employment relationship with controlled functions including 'Algorithmic trading' and 'Proprietary trader'; LinkedIn independently shows the same person as 'Quantitative Trader at Jane Street' since 2017. Jane Street is classified as a quantitative trading firm and liquidity provider by its own site and by its corporate LinkedIn description, so the employer genuinely operates in quantitative finance and the role is real rather than a student program. Aggregators (Tovo, theorg.com) republish or index the underlying records and are not counted as independent primary confirmation.Jun 2017
• FCA work history runs Jun 2017 - Jan 2026; the Jan 2026 end date is the last recorded on the aggregator snapshot (read 2026-09-17) and is not evidence of a departure from Jane Street.Jan 2026
• IMO record: Bronze medal, 2011 (rank 253, 16 pts); Honourable Mention, 2010 (rank 337, 12 pts), both representing Croatia.Jul 2011
• Education (index-only, LinkedIn-derived): BSc Mathematics (2011-2014) and MSc Mathematics and Statistics (2014-2016) at the University of Zagreb/Sveuciliste u Zagrebu; no other institution is listed.
• Aggregator theorg.com lists Ognjen Stipetić on Jane Street's Quantitative Trading team as Quantitative Trader - index-only, not primary-source confirmation.
• Proposed problems for the European Mathematical Cup (Junior Division 2012 and 2013 editions), showing continued olympiad-community involvement while an undergraduate in Zagreb.Dec 2013
• Croatian olympiad community: author page on mnm.hr with workshop posts, consistent with a Croatian IMO background.Dec 2014