Jiwon Kang

Jiwon Kang is a Seoul-based mathematics student at Seoul National University (Mathematical Science, 2020-2026) and a two-time International Mathematical Olympiad medalist for the Republic of Korea (Silver 2018, Gold 2019). Public professional records list a 2025 Quantitative Research Internship at Jane Street in Hong Kong and a Researcher role at Teyvat Soft (teyvat.io) in Seoul from Sep 2024 to Feb 2025. The employment picture rests on LinkedIn-index data plus the Teyvat company website; no independent primary source names him at either firm.

Notes7

• Quant employment verification: CONFIRMED. Two quantitative-finance roles appear in public professional records: a 2025 Quantitative Research Internship at Jane Street (a global quantitative trading firm and market maker) in Hong Kong, and a Researcher role at Teyvat Soft / Teyvat Investment Advisory (teyvat.io) in Seoul, Sep 2024-Feb 2025. Both employers are quantitative-finance operating businesses, not companies merely named 'quant'. Evidence is LinkedIn-index/profile data plus the Teyvat company site and company-index record; identity is supported by the LinkedIn profile and its mathematics education. Caveat: no second, independent primary source (e.g. a Jane Street page or news item) names this individual at either firm, and the Jane Street role window (Jun-Aug 2025) is not independently confirmed.Sep 2026
• IMO contestant page (participant id 28253) records 'Ji Won Kang' competing for the Republic of Korea: Gold 2019 (35/42, rank 18) and Silver 2018 (28/42, rank 86) - making the subject a two-time IMO medalist.Jul 2019
• LinkedIn profile (jiwon-kang-b9142b2bb) lists exactly two experience entries - Quantitative Research Intern at Jane Street (Hong Kong, 2025) and Researcher at Teyvat Soft (Seoul, 2024-2025, ~1 yr) - plus education Seoul National University (Mathematical Science, 2020-2026) and Seoul Science High School (2017-2020). This is index/profile data rather than independent primary-source confirmation.Sep 2026
• Identity linkage is by name, country and field, not an explicit cross-reference: the LinkedIn record (Jiwon Kang, Korea, SNU mathematical science) is consistent with the IMO contestant Ji Won Kang for Korea, but no single source links the two records. Treat the Olympiad-to-employer link as a strong inference, not a documented fact.Sep 2026
• Jane Street is a global quantitative trading firm and market maker, so its 2025 Quantitative Research Internship is genuine quantitative-finance work rather than a student program. The index shows only the year 2025; the specific Jun-Aug window supplied in the lead is unverified and not independently confirmed.2025
• Teyvat Soft (teyvat.io) is not a software vendor despite the name: it trades as Teyvat Investment Advisory (테이바 투자자문), a South Korean investment-advisory/asset-management firm whose site describes combining community wisdom, human intuition and AI-based data analysis; the company index classifies it as Financial Services and describes it as an investment firm using quantitative models to screen global healthcare companies. The Sep 2024-Feb 2025 Researcher role therefore sits at a quant-oriented investment firm.2024-2025
• Career timeline spans a university internship (Jane Street, 2025) and an off-cycle research stint (Teyvat, Sep 2024-Feb 2025) while enrolled at SNU, consistent with a student building quant-finance experience rather than a full-time track; no full-time employment is recorded.Sep 2026
• No public GitHub, X/Twitter, personal website or blog surfaced for this individual in any source-family sweep; the public footprint is limited to the LinkedIn profile and the IMO record.Sep 2026