Available to hire
Hi, I’m Mariam Lotfi Gaafar, a passionate data scientist and AI engineer currently working as a Data Science Consultant at Deloitte. I’ve gained extensive experience in designing agentic frameworks and leveraging large language models to solve complex company-related questions. I enjoy mentoring fresh graduates and training new employees, helping them grow in their data science careers.
With a strong academic background in computer science from The American University in Cairo, I have worked at leading companies like Dell Technologies and talabat. My expertise includes NLP, deep learning, and building innovative AI-powered tools. I love collaborating with teams to create impactful solutions and constantly expanding my knowledge of the latest tech trends.
Skills
Language
English
Fluent
Arabic
Fluent
Work Experience
Data Science Consultant at Deloitte
March 1, 2025 - PresentDesigned an Agentic Framework for question answering using RAG and LLMs. Created Dynamic Agentic Frameworks incorporating Human-in-the-loop feedback for answering company-related inquiries using Re-Act Agents and LLMs. Mentored five fresh graduates and guided them on career planning. Conducted training sessions for new employees covering LLMs, guardrails, and evaluation of agentic frameworks.
Data Scientist II at talabat
March 1, 2025 - July 21, 2025Developed a custom search engine for customer support chats utilizing RAG and LLM embeddings enabling semantic search. Partnered with customer support to create an LLM-powered tool assessing agent performance with 93% accuracy. Built a custom search system leveraging LLMs to find restaurants using non-food related keywords. Enhanced cuisine classification model for 30K restaurants using DNNs and menu embeddings, achieving a 4% F1-score improvement.
Data Scientist II at Dell Technologies
August 1, 2023 - July 21, 2025Mentored interns analyzing billions of job postings to forecast talent demand across 250 fields including AI and 5G. Supervised international senior undergraduate students on graduation projects in computer vision and NLP, providing machine learning and data science guidance.
Data Scientist at Dell Technologies
December 1, 2022 - July 21, 2025Implemented NLP topic modeling algorithms (BERT, CSO, MPNET) to detect emerging technologies in research documents. Created a custom text classification model using few-shot learning, MPNET, and DNNs to identify scientific and technology terms with 89% accuracy.
Consultant, Data Science Hub at The American University in Cairo
February 28, 2022 - July 21, 2025Led a research team focusing on GDP Nowcasting for the Central Bank of Egypt. Utilized ARIMA, SARIMA, VAR, and Deep Neural Networks (DNNs) across models.
Data Scientist at Credit Agricole Bank in Egypt
September 1, 2021 - July 21, 2025Developed a model to predict customer default rate. Built a scorecard system to help management identify profitable and risky customers.
Graduate Teaching Assistant at The American University in Cairo
June 30, 2021 - July 21, 2025Delivered weekly lab content for Fundamentals of Computer Science and Programming Fundamentals. Developed lab problems and content, graded assignments, and held regular office hours.
Data Science Consultant at Deloitte
March 1, 2025 - PresentDesigned Agentic Frameworks for question answering using RAG and LLMs. Created dynamic agentic frameworks with human-in-the-loop feedback using Re-Act Agents and LLMs. Mentored 5 fresh graduates and guided them through career planning. Trained new employees on LLMs, guardrails, and evaluation techniques of agentic frameworks.
Data Scientist II at talabat
March 1, 2025 - July 21, 2025Developed a custom search engine for customer support chats utilizing RAG and LLM embeddings to enable semantic search. Collaborated with customer support to create an LLM-powered performance evaluation tool achieving 93% accuracy. Built a custom search system enabling users to find restaurants using non-food related keywords. Improved a cuisine classification model for 30K restaurants with DNNs, boosting F1-score by 4%.
Data Scientist II at Dell Technologies
August 1, 2023 - July 21, 2025Mentored interns on analyzing billions of job postings to forecast talent demand across 250 fields including AI and 5G. Supervised international undergraduate students on computer vision and NLP projects, providing technical guidance in machine learning and data science.
Data Scientist at Dell Technologies
December 1, 2022 - July 21, 2025Implemented various NLP topic modeling algorithms (BERT, CSO, MPNET) to identify emerging technologies in research documents. Developed a custom text classification model using few-shot learning and DNNs, achieving 89% accuracy for identifying scientific and technology terms.
Consultant, Data Science Hub at The American University in Cairo
February 28, 2022 - July 21, 2025Led a team on a research project for the Central Bank of Egypt focused on GDP Nowcasting using models such as ARIMA, SARIMA, VAR, and Deep Neural Networks.
Data Scientist at Credit Agricole Bank in Egypt
September 1, 2021 - July 21, 2025Developed a predictive model for customer default rate and built a scorecard to help management identify profitable and risky customers.
Graduate Teaching Assistant at The American University in Cairo
June 30, 2021 - July 21, 2025Delivered weekly lab content for Fundamentals of Computer Science and Programming Fundamentals courses. Developed lab content and problems, graded assignments, and held office hours.
Education
Bachelor of Science at The American University in Cairo
September 1, 2015 - June 30, 2020Bachelor of Science at The American University in Cairo
September 1, 2015 - June 30, 2020Qualifications
Industry Experience
Software & Internet, Financial Services, Education, Professional Services, Travel & Hospitality
Skills
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