James Lin

James Lin is a quantitative trader at Five Rings, a New York proprietary trading firm, having held quantitative-trader roles there (2021, then from 2022) and an earlier quantitative-trader stint at Jane Street (2020). He graduated from MIT in 2022 with a bachelor's degree in Mathematics and Computer Science after attending Phillips Exeter Academy. He competed for the United States at the International Mathematical Olympiad in 2017 (gold, rank 6) and 2018 (gold, rank 1, perfect 42/42). Earlier roles include machine-learning research and math-education work (IBM, Singapore-MIT Alliance, QipWorks, IdeaMath, Online Math Open).

Notes5

• IMO 2018: contestant 'James Lin' (USA) finished rank 1 overall with a perfect 42/42 and a gold medal.
• Identity: the IMO competitor (USA 2017-18) matches the name and MIT '22 timeline of LinkedIn /in/james-lin-164126150 (headline "MIT '22 Mathematics and Computer Science"); the link rests on name + MIT class year, not a page naming both.
• Quant employment verification: CONFIRMED - index and Five Rings' own site establish a genuine quantitative-trading employer and an actual Quantitative Trader role; identity is supported (name + MIT '22 + quant trajectory) though the IMO-to-LinkedIn link is name/school-based rather than a single joint source. See employer classification below.
• IMO 2017: contestant 'James Lin' (USA) finished rank 6 with 30 points and a gold medal.
• LinkedIn (index-derived) lists Quantitative Trader at Five Rings from 2022 as current, plus earlier Quantitative Trader stints at Five Rings LLC (2021) and Jane Street (2020).
• Quant employment verification - employer classification: Five Rings (fiverings.com) is an established New York proprietary trading firm recruiting campus Quantitative Traders/Researchers, a core quantitative-finance employer; Jane Street is a global quantitative trading firm where the indexed role was Quantitative Trader (2020).
• Five Rings is a New York proprietary trading firm whose site describes quants, developers and traders designing and executing trading strategies across markets - a genuine quant employer, not just a name containing 'quant'.
• MIT + computer science and a 2017-18 IMO record on a Five Rings quant trading career is the trajectory of a competition-math-to-proprietary-trading path; the IMO medals are the strongest public signal of extraordinary quantitative ability predating the finance roles.
• Education timeline: MIT 2018-2022 (B.S. Mathematics and Computer Science) and Phillips Exeter Academy 2014-2018 align with IMO appearances in 2017 and 2018 during high school.
• No public evidence was found that any indexed role at Five Rings LLC (2021) or Jane Street (2020) was a student insight day, camp or scholarship rather than an actual role; the LinkedIn entries are titled Quantitative Trader, so they read as work roles - but they remain index-derived and not independently confirmed by a company page.