HI, I'M NANA MULYANA MAGHFUR

Data Scientist

A dedicated and results-driven professional with a robust foundation in Computer Science. I'm passionate about the entire data lifecycle, from extraction and analysis to deploying and monitoring machine learning models to solve complex business problems.

View My Work

Work Experience

Data Scientist @ Alphalitical

Nov 2024 - Present

Improved Llama-based sentiment analysis model, achieving an F1 score above 0.85.
Engineered a BERT-based classifier, improving training time by 5x and inference by 24x.
Reduced monthly cloud expenditure by over 40% through data-driven analysis.

Data Scientist @ PLN Icon Plus

Nov 2023 - Oct 2024

Performed in-depth data analysis and structuring on large-scale MongoDB databases using Python and Pandas to extract actionable business insights.
Engineered and executed data migration scripts to move data from NoSQL (MongoDB) to SQL (PostgreSQL), ensuring high data integrity and consistency.
Developed automated data migration pipelines with Apache Airflow, reducing manual effort by 40% and improving data processing efficiency by 30%.

Technical Support Staff @ PLN Icon Plus

Nov 2022 - Oct 2023

Acted as a critical link between end-users and the development team, focusing on data integrity within internal applications.
Analyzed and diagnosed data discrepancies in MongoDB databases, identifying root causes to ensure high data quality.
Collaborated with developers to translate user-reported issues into actionable bug fixes, increasing application stability by 15%.

Data Science Intern @ PT Kurnia Ciptamoda Gemilang

Mar 2022 - Oct 2022

Developed and contributed to multiple predictive models, including product price prediction, recommendation systems, and customer churn prediction, using regression, classification, and clustering techniques.
Engineered an image similarity model using TensorFlow for visual product recommendations, enhancing the customer experience.
Collaborated with senior developers to design and implement robust deployment pipelines for AI models using Flask.

Research Intern @ PT Bahasa Kita

Jan 2021 - Mar 2021

Conducted research on text normalization techniques to enhance the quality and naturalness of Indonesian Text-toSpeech (TTS) systems.
Developed and implemented rule-based algorithms to standardize text input, handling abbreviations, acronyms, and nonstandard language.
Contributed to the development of a rule-based text normalization algorithm that served as a baseline for future TTS research.