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OLALEKAN IJAGBEMI

AI Engineer·Portfolio Projects

Nigeria

Higher diploma, Business Administration

Work experience

Total years of experience: 6 years, 5 months

AI Engineer

January 2025 - Present

Portfolio Projects

Lagos, Nigeria •Remote

January 2025 - Present

- Built Multi-Agent RAG System with FAISS + BM25 hybrid retrieval, achieving 94.83% confidence scoring with intelligent web fallback via DuckDuckGo for complete knowledge coverage
- Engineered True Semantic RAG System processing 20MB PDFs with sub-3 second latency, achieving 0% hallucination rate through confidence thresholding (0.15 cutoff)
- Developed AI-Powered SQL Analytics Dashboard converting natural language to SQL queries with 95%+ accuracy on 10, 000+ row PostgreSQL database
- Reduced data query time from minutes to seconds for non-technical users through auto-generated Plotly visualizations and query history tracking
- Deployed all systems live on Streamlit Cloud with Supabase PostgreSQL integration

Tech Stack: Python, Streamlit, LangChain, FAISS, BM25, Groq API, PostgreSQL, Supabase, Plotly, HuggingFace MPNet

Company industry:: Entertainment

3D Artist / VR Developer

February 2022 - January 2025

iLake-VR

Lagos, Nigeria •Hybrid

February 2022 - January 2025

• Build immersive VR experiences using Unity, C#, and XR Interaction Toolkit for
Meta Quest
• Optimize 3D assets and interaction systems for PC VR platforms

Company industry:: Training & Education Center

3D Animation / VR Assistant

January 2020 - January 2022

VHCI(Virtual Human ComputerInteraction)

Lagos, Nigeria •Hybrid

January 2020 - January 2022

• Assisted in building Virtual Learning Environments (VLE's)
• Assisted in testing XR interaction systems and user experience flows
• Transitioned to full VR development role at iLake-VR

Company industry:: Training & Education Center

Education

The Federal Polytechnic

February 2005