Stephen Chukelu
Data Scientist @Mercor
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WORK HISTORY
Data Scientist @Mercor
Developed structured prompts and evaluation rubrics to assess LLM performance on data analysis tasks in SQL and Python.Conducted benchmark evaluations to identify LLM model failure modes in coding, thinking, and statistical reasoning, providing actionable feedback to guide model improvements.Created golden reference solutions in Python and SQL, defining ground-truth logic and expected outputs to guide model improvement and reduce error rates.
EDUCATION
Centennial College School of Business
Postgraduate Degree, Business Analytics and Insights
Lagos Business School, Pan-Atlantic University
Bachelor's degree, Accounting
ABOUT STEPHEN CHUKELU
I help organizations find clarity in complexity by turning raw data into actionable insights.A relentless learner passionate about using data, machine learning, and predictive modelling to drive smarter business decisions. I believe that great analytics goes beyond numbers: it’s about asking the right questions, telling a compelling story, and delivering business impact.Key interests: Predictive Modelling | Machine Learning | Deep Learning | BI & Dashboards | Financial & Customer AnalyticsSkills: Python | R | SQL | Tableau | Excel | SAS Miner | Google Analytics
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