Sceth St. Xellus

Sceth St. Xellus is a consulting data scientist and mathematics researcher based in San Fernando, Trinidad and Tobago. As a teenager, under the name Chandresh Amrit Ramlagan, he represented Trinidad and Tobago at the International Mathematical Olympiad four consecutive years (2006-2009), winning a bronze medal at IMO 2008 in Madrid and an honourable mention at IMO 2009 in Bremen. He went on to study Mathematics at Stanford University and now works as a Mathematics Researcher at Mercor, with earlier roles spanning data science, analytics and campaign management.

Notes5

• Went by the legal name Chandresh Amrit Ramlagan at the time of his olympiad career and has since changed his name to Sceth St. Xellus; the LinkedIn profile notes 'Legal name at the time: Chandresh Ramlagan'.2024
• Studied Mathematics at Stanford University and now works as a Mathematics Researcher at Mercor, an AI training-data/consulting marketplace - an olympiad-to-applied-math trajectory rather than a pure research path.2025
• As an 18-year-old, a February 2011 regional news article profiled him as an autistic 'mathematical scholar', noting he had recently won the IMO bronze and had sat (and passed) A-level mathematics at 10 and CXC O-levels in a single sitting.Feb 21, 2011
• Contested four consecutive IMOs for Trinidad and Tobago (2006-2009), rising from 3 points in 2006 to an IMO 2008 bronze medal (16 pts, rank 212), then an honourable mention in 2009 (11 pts, rank 314) - the only T&T contestant to medal at both the 2008 and 2009 editions.Jul 2009
• Career has spanned data science and project management across client firms (StartPlaying campaign management; Data Science Lead at Stephen Staver Data Analytics; data analyst at MD Ranger; research assistant at Ward Watt Laboratory), suggesting a consulting/data-science generalist rather than a single-track academic.2025
• Listed among the notable honours of Presentation College, San Fernando as 'International Mathematics Olympiad Bronze Winner - Chandresh Ramlagan', tying his schooling to the boys' Catholic college in San Fernando, the same city he is based in today.2024
• His self-description ('a dabbler in beautiful things, and a lover of both the written word and the beauty of algebra') and research interests (algebra, bioengineering, climate change, big data) point to a polymath identity his olympiad record foreshadowed.2025