Ben-Eben de Klerk

Ben-Eben de Klerk is a South African mathematician and trader based in the Johannesburg Metropolitan Area. He represented South Africa at the International Mathematical Olympiad 2008, earning an Honourable Mention (rank 297, 12 points). He holds a Doctor of Philosophy (PhD) in Mathematics from the University of the Free State and has peer-reviewed publications in algebra (Turkish Journal of Mathematics and Communications in Algebra, both 2018). His career positions are Lecturer at the University of the Free State (2012-2019), Manager at Deloitte (2019-2021), and 'Quantitative Trader' at Lafeki (from April 2021 to present). Lafeki is a soybean and grain soft-commodity trading company; its quantitative-finance operations are not established by any available source. Employment details rest on LinkedIn-derived index data unless otherwise noted.

Notes7

• Quant employment verification: UNRESOLVED. Identity is supported (name matches on the LinkedIn profile, the IMO 2008 South Africa contestant record #17787, and peer-reviewed UFS mathematics publications). The single quantitative-finance employment lead is 'Quantitative Trader at Lafeki' (2021-04 to present), which is attested only by LinkedIn-derived index data (self-reported, not independent primary-source confirmation). Lafeki is verified as a soybean/grain soft-commodity trading company (Lafeki (Pty) Ltd, established 2019), i.e. a physical commodity trading firm; no evidence was found that it runs quantitative/algorithmic/market-making or systematic trading operations. No other quant-finance role or internship surfaced (past roles: Manager at Deloitte 2019-2021; Lecturer at University of the Free State 2012-2019). Because the employer's quantitative-finance operations are unestablished and the role rests on index-only data, the claim is neither confirmed nor refuted.Sep 17, 2026
• Holds a Doctor of Philosophy (PhD) in Mathematics from the University of the Free State per his LinkedIn profile; the academic record is corroborated by peer-reviewed algebra publications co-authored with UFS mathematician Johan H. Meyer.Sep 17, 2026
• Lafeki (Pty) Ltd was established in 2019 and describes itself as a trading house dealing in maize & grains, soya products, canola oils and sunflower seeds - a physical soft-commodity trader, which is why its 'quantitative trading' activity could not be verified as a quantitative-finance operation.Sep 17, 2026
• Has been listed as 'Quantitative trader' at Lafeki since 2021-04 (roughly five years) on LinkedIn; this is index-derived and self-reported, not independently confirmed from a Lafeki page.Apr 1, 2021
• Represented South Africa at the International Mathematical Olympiad 2008 as contestant #17787: rank 297 (44.7% percentile), Honourable Mention, 12 points (P1=7, P2=1, P4=4).Jul 1, 2008
• Worked as a Manager at Deloitte from 2019 to 2021 per LinkedIn - a move from academia (UFS lecturer) into professional services before joining Lafeki in 2021.Jan 1, 2021
• Served as a Lecturer at the University of the Free State for seven years (2012-2019) per LinkedIn; a 2018 UFS master's thesis acknowledgement thanks 'Dr. Ben-Eben de Klerk' for sparking the author's interest in category theory, independently corroborating both the 'Dr.' title and the UFS teaching role.Jan 1, 2018
• Published peer-reviewed research: 'When is a permutation of the set Z^n (resp. Z_p^n, p prime) an automorphism of the group Z^n (resp. Z_p^n)?', Turkish Journal of Mathematics, Vol. 42, No. 6, 2018, co-authored with Johan H. Meyer.Jan 1, 2018
• Co-authored 'Functions realizing as abelian group automorphisms', Communications in Algebra 46(2):467-479 (2018), DOI 10.1080/00927872.2016.1265976, listed under author B.-E. de Klerk.Jan 1, 2018
• Identity caution: an unrelated 'Cristina de Klerk' LinkedIn profile shares the numeric slug suffix 450386175, indicating slug-reuse in LinkedIn's namespace; the subject must be distinguished by name 'Ben-Eben', not by the numeric suffix alone.Sep 17, 2026
• Located in the Johannesburg Metropolitan Area, South Africa, per LinkedIn.Sep 17, 2026
• LinkedIn profile shows 221 connections and 220 followers, a small footprint consistent with a low-public-visibility profile.Sep 17, 2026