Rafsan Al Mamun

About

An Independent Data Analyst

I am a data analyst with a background in Computer Science and Data Science, holding a First Class Honours Master of Data Science from the University of Melbourne. I specialise in using SQL, Python, Excel, Tableau, and machine learning to turn complex data into meaningful insights, compelling visualisations, and practical recommendations.

My experience spans data analysis, experimentation, visualisation, applied machine learning, and research, with a particular interest in solving real-world problems through data. I also bring strong communication and project leadership skills, having worked across academic, research, and collaborative projects and presented technical work to diverse audiences.

I am passionate about making data not only accurate and insightful, but understandable and useful for the people who need to act on it.


  • Birthday: 27 January 1998
  • Website: www.ralmamun.me
  • Phone: +880 1674215002
  • Location: Tongi, Gazipur, BD
  • Gender: Male
  • Education: Master of Data Science
  • Email: rafsan7238@gmail.com
  • Status: Available

Skills

Essential Skills

Data Preparation (Cleaning and Mining)
Statistical Analysis
Data Visualisation
Machine Learning
Critical Thinking and Problem Solving
Communications and Presentation
Project Management

Tech Stack

Python
ML Libraries
Microsoft Excel
SQL
Tableau
Google Analytics and Data Studio
Git/Github

Resume

Education

Master of Data Science

February 2023 - December 2024

The University of Melbourne, Victoria, Australia

  • Coursework in Advanced Database Systems, Statistics, Computational Genomics, Machine Learning, Natural Language Processing, and Cloud Computing
  • Dean's Award; H1 (First Class Honours) student; WAM: 86.94
  • Member of Data Science Students Society (DS Cubed)

Bachelor of Science in Computer Science & Engineering

May 2018 - May 2022

BRAC University, Dhaka, Bangladesh

  • Coursework in Computer Science, Mathematics, Physics and Social Sciences
  • Recipient of Merit Scholarship for outstanding academic results (Highest Distinction; CGPA: 3.99)
  • Recipient of VC's List Award for outstanding consistent results throughout the degree program
  • Member of IEEE BracU Student Branch and ROBU

Professional Experience

Independent Data Analyst

February 2023 - Present

Multiple Locations

  • Analyse business and operational datasets using SQL, Python and Excel, from data cleaning through to insight generation
  • Build interactive Tableau dashboards to communicate trends, KPIs and recommendations
  • Conduct A/B testing and statistical analysis to evaluate business and marketing decisions
  • Develop and evaluate machine-learning models for prediction, classification and segmentation

Data Research Intern

July 2024 - October 2024

Melbourne Data Analytics Platform (MDAP), Melbourne, Australia

  • Developed SeqBank, a command-line tool for managing large DNA sequence datasets, published on PyPi, improving data processing efficiency by 35%
  • Optimized genomic classification models (Corgi and Terrier) using Optuna, boosting accuracy past 90%
  • Migrated models from FastAI to PyTorch Lightning, enhancing scalability within cloud infrastructure
  • Achieved 100% test coverage for SeqBank with pytest, ensuring robust and reliable functionality

Student Tutor (ST)

June 2021 - May 2022

BRAC University, Dhaka, Bangladesh

  • Taught the fundamentals of programming and Computer Science to 100+ freshers
  • Co-arranged intra-batch contest to foster learning and encourage programming, leading to a 25% increase in student participation on coding platforms
  • Enhanced student performance by 10%+ compared to previous academic results

Project Lead and Manager

May 2020 - January 2021

Care2U, Dhaka, Bangladesh

  • Lead and managed a team of 3 in the design and development of a PPE-donation platform for healthcare workers during COVID-19 pandemic
  • Taught myself basic HTML and CSS, and incorporated Agile practices to cut development time by 40%
  • Partnered with local government to reach >500 donations
  • Awarded the 2nd Runner-Up in COVID-19 Combatants Unification Competition by IEEE Computer Society - BRACU Student Chapter

Portfolio

  • All
  • Python
  • Excel
  • SQL
  • Tableau
SeqBank: CLI App for Managing Large DNA Sequence Datasets

SeqBank: CLI App for Managing Large DNA Sequence Datasets

Automated Fact-Checking System for Climate Science Claims

Automated Fact-Checking System for Climate Science Claims

Analysing Air Quality vs. Lung Disorders in Australia

Analysing Air Quality vs. Lung Disorders in Australia

Text Tug of War: Unmasking the Machines with ML

Text Tug of War: Unmasking the Machines with ML

Analysis of Alcohol-Related Victorian Road Crashes

Analysis of Alcohol-Related Victorian Road Crashes

Applying ML to Predict Hotel Booking Cancellations

Applying ML to Predict Hotel Booking Cancellations

Advanced Sales Revenue Analysis

Advanced Sales Revenue Analysis

Managing a Personal Stock Portfolio using Excel

Managing a Personal Stock Portfolio using Excel

Solving a Murder Mystery with SQL

Solving a Murder Mystery with SQL

Analysing Customer Complaints of Major US Credit Card Companies

Analysing Customer Complaints of Major US Credit Card Companies

Predicting Customer Churn in Telecom Industry using Machine Learning

Predicting Customer Churn in Telecom Industry using Machine Learning

A Machine Learning Approach To Classifying Credit Score

A Machine Learning Approach To Classifying Credit Score

A/B Testing For an E-Commerce Website Ad Marketing

A/B Testing For an E-Commerce Website Ad Marketing

Business Optimisation Analysis of Chinook Digital Music Store

Business Optimisation Analysis of Chinook Digital Music Store

Coal Terminal Maintenance Analysis

Coal Terminal Maintenance Analysis

Managing Multiple Project Progress using Excel Dashboard

Managing Multiple Project Progress using Excel Dashboard

Mega Merchandise Profit Analysis

Mega Merchandise Profit Analysis

Megabucks Coffee Shop Expansion Analysis

Megabucks Coffee Shop Expansion Analysis

Predicting Absenteeism at Workplace using Machine Learning

Predicting Absenteeism at Workplace using Machine Learning

Analyzing Instagram Clone User Data

Analyzing Instagram Clone User Data

Analyzing International Debt Statistics with World Bank Data

Analyzing International Debt Statistics with World Bank Data

Analyzing Orders and Shipments of International E-Commerce Company

Analyzing Orders and Shipments of International E-Commerce Company

Customer Segmentation of a Bank in Different Regions of UK

Customer Segmentation of a Bank in Different Regions of UK

IT Planned Vs. Actual Expenditure Analysis

IT Planned Vs. Actual Expenditure Analysis

Analyzing Multinational Departmental Store Sales Revenue

Analyzing Multinational Departmental Store Sales Revenue

Modelling an Epidemic Using SIR

Modelling an Epidemic Using SIR

Reducing Traffic Mortality in the USA

Reducing Traffic Mortality in the USA

Breast Cancer

Breast Cancer Prediction with CNN

QA System

Question Answering Bot

Traffic Sign

Traffic Sign Detection with CNN

Testimonials

Don't just take my words for granted. See what others have to say about my skills.

Contact

Have something interesting to collaborate on? Please feel free to get in touch.

Location:

Masimpur, Station Road, Tongi, Gazipur 1710, Bangladesh