Open to opportunities

Raphaël Tankeu

@raphaltankeu

I build production-ready data science and machine learning solutions, especially fraud detection, predictive modeling, and NLP.

Cameroon

Message

What I'm looking for

I’m looking for a team where I can build production-grade predictive and AI systems—especially fraud/risk modeling and LLM+RAG solutions—with strong evaluation, monitoring, and cross-functional delivery that turns data into decisions.

I’m a Data Scientist and Machine Learning Engineer focused on building predictive analytics, fraud detection, NLP, and AI solutions that deliver measurable outcomes. I’ve applied these skills across fintech, healthcare, HR analytics, and retail, spanning model development, risk scoring systems, and customer intelligence.

I’ve built and deployed 8 end-to-end AI applications—from computer vision and NLP to medical imaging and time-series forecasting—each delivered as a working product with a clear user interface. I take projects from problem framing through data sourcing, training, evaluation, and deployment, keeping the full pipeline reliable and auditable with real-world usage in mind.

In my data science work, I’ve developed fraud detection and risk scoring models on high-volume transaction data across multiple markets. I design and deploy risk scoring pipelines that automate flagging of high-risk transactions at scale, and I build customer behavior and transaction pattern analytics tools to support senior stakeholder decisions.

As an AI Engineer, I architect and ship production-ready LLM, RAG, and agentic AI systems for enterprise clients. I integrate vector databases with knowledge-grounded LLM architectures using LangChain and LangGraph, and I build deployment workflows that include evaluation, explainability, and post-launch monitoring to keep solutions dependable.

Experience

Work history, roles, and key accomplishments

Current

AI Engineer

Current

Andela

Aug 2024 - Present (1 year 11 months)

Architected and shipped production-ready LLM, RAG, and agentic AI systems for enterprise clients. Built intelligent search and document processing with vector databases and knowledge-grounded LLM architectures, contributing to end-to-end deployment, evaluation, explainability, and monitoring.

LLM RAG Agentic Systems LangGraph Vector Databases Document Processing Workflow Design Model Evaluation Explainability Frameworks Prompt Engineering

Current

Data Scientist

Current

Flutterwave

Jan 2023 - Present (3 years 6 months)

Built and maintained fraud detection models for high-volume payment transactions across multiple African markets. Designed and deployed risk scoring pipelines and customer behavior/transaction analytics tools, collaborating with product, engineering, and compliance teams.

Fraud Detection Risk Scoring predictive modeling Machine Learning Python Pandas scikit learn SQL AWS Data Pipelines Customer Analytics

Current

Independent Data Scientist & AI Engineer

Current

Self-Directed Portfolio

Jan 2023 - Present (3 years 6 months)

Built and deployed 8 end-to-end ML applications, covering business problem definition through data sourcing, preprocessing, model training/evaluation, and deployment with a user interface. Project work spans computer vision, NLP, medical imaging, HR analytics, customer segmentation, and sales forecasting.

K Means Computer Vision NLP Medical Imaging Predictive Analytics Customer Segmentation Sales Forecasting TensorFlow OpenCV Streamlit TF IDF Logistic Regression scikit learn Pandas KMeans ARIMA

Current

Language Tutor, French & Spanish

Current

Preply

Aug 2022 - Present (3 years 11 months)

Designed structured French and Spanish learning programmes with data-driven progress tracking and adaptive coaching. Maintained student retention across an international student base.

French Language Teaching Spanish Language Teaching Instructional Design Student Retention

Bilingual Investment Analyst

PAC Capital Ltd.

Aug 2021 - Jan 2023 (1 year 5 months)

Analyzed financial and operational data to support investment research and portfolio decisions using quantitative models and KPI tools. Served as the primary communication bridge between English- and French-speaking stakeholders for executive-level reporting.

Investment Research Financial Analysis Quantitative Modeling KPI Reporting Bilingual Reporting (English French)

Data Scientist

DataCore Analytics

Feb 2020 - Dec 2022 (2 years 10 months)

Delivered data science engagements across predictive analytics, statistical modeling, NLP, and business intelligence for finance and retail clients. Built time-series forecasting models (ARIMA) and created interactive KPI dashboards in Streamlit to support non-technical decision-makers.

Predictive Analytics Statistical Modeling NLP Business Intelligence Time Series Models ARIMA KPIs Streamlit Matplotlib SeaBorn

Education

Degrees, certifications, and relevant coursework

University of the People

Bachelor of Science, Computer Science

2026 -

Pursuing a Bachelor of Science in Computer Science.

ALX Academy

Applied LLMs, Agentic Systems & RAG, AI Engineering

2024 -

Ongoing AI Engineering training focused on Applied LLMs, Agentic Systems, and RAG.

ALX Academy

Data Science and Software Engineering, Data Science

2022 - 2024

Completed Data Science and Software Engineering training at ALX Academy.

University of Lagos

Bachelor of Arts, French Language

2016 -

Completed a BA in French Language.

Université Grenoble Alpes

Digital Language Teaching, Language Teaching

Studied Digital Language Teaching.

Université de Liège

Teaching French as a Foreign Language (FLE), Language Teaching

Studied Teaching French as a Foreign Language (FLE).

Stanford University

Data-Driven Healthcare in Precision Medicine, Precision Medicine

Completed coursework related to Data-Driven Healthcare in Precision Medicine, AI Applications in Medicine, and Bioinformatics and Computational Biology.

ALX Academy

Precision Medicine AI Specialization (coursework), AI in Precision Medicine

Completed modules covering Fundamentals of AI and ML in Precision Medicine, Data-Driven Precision Medicine for Diabetes, and related specialization foundations.