I'm

Tegar Ahmad Arsy

1+

Years

of working experience as a Data Analyst/Data Engineer

This portfolio showcases various data analytics projects I have worked on, covering data cleaning, exploratory data analysis (EDA), data visualization, and predictive modeling. With a Mathematics background and experience from Bangkit Academy and Hacktiv8, I am accustomed to transforming complex data into actionable insights using Python, SQL, Power BI, and machine learning. I am currently working at SCG, where I apply data-driven approaches to support business analysis and decision-making.

Projects Completed

29

📂 Data & Analytics Projects: 15+
📊 Dashboards & Reports Built: 8+
🤖 Automation & Data Pipelines: 6+
📄 Research Publications: 1 (Scopus Indexed)

Skills & Experience

I have experience in Data Analysis, including Data Cleaning, EDA, and Data Visualization. I am proficient in Python, SQL, Excel, Power BI, and machine learning, with a strong Mathematics background. I also work with database structuring, bot development, and automated ETL pipelines. Through Bangkit Academy, Hacktiv8, and my role at SCG, I apply data driven solutions to support analysis, automation, and decision-making.

My Skills

Python

95%

SQL

90%

Microsoft Excel

90%

Microsoft Power BI

95%

PHP

50%

Javascript

50%

Data Analyst / Data Engineer

February 2025 - Present

Siam Cement Group Ltd.

Performed data cleaning, preprocessing, and ETL from multiple data sources, including web scraping, to build reliable and integrated data pipelines.
Developed Power BI dashboards and a stocktake system to support performance monitoring, inventory accuracy, and operational efficiency.
Generated actionable insights to support business and operational decision-making through data-driven analysis and automation.

Bangkit Academy 2023

August 2023 - January 2024

Machine Learning

Utilized frameworks like TensorFlow, Keras, or PyTorch for model development.
Applied optimization techniques to train and evaluate the model, ensuring high accuracy and performance
Processed datasets using preprocessing and augmentation techniques to improve model accuracy.

Zooragan.id

February 2022 - August 2022

Information and technology

Designed and managed the database for the ZOORAGAN website, ensuring efficient data storage and retrieval.
Collaborate with the team to address web-related needs while ensuring projects stay on track and meet deadlines.
develop websites and contribute to UI/UX design to enhance user experience.

Hacktiv8

February 2022 - August 2022

Python For Data Science

Implementing Supervised and Unsupervised Learning to solve real-world cases
Querying DataFrame structures for cleaning and processing datasets
Developing ML features that meet data analysis needs

Universitas Sebelas Maret - Surakarta, Central Java, Indonesia

2020 - 2024

Bachelor of Mathematics

Undergraduate Thesis Title: Analysis of the Contribution of Factors in Predicting Cryptocurrency Prices Using Machine Learning and Shapley Value Approach.