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Joyal
John

Data Analyst

Recent Works

RECENT PROJECTS

MY INFO

About Me

Hi! I'm Joyal, a dedicated data professional. With a strong foundation in AI, Machine Learning, and Software Engineering, as well as experience working in several projects, I have developed a versatile skill set that makes me well-suited for roles within Data Science.

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Experience

Client: J. Wilson (Senior Data Scientist)

[Freelance] ETL Developer

April 2025 - Present

- Developed several Python scripts that allows seamless daily updates of over 10,000+ HubSpot API records with up to 30-day lookback logic, into a PostgreSQL database; ensuring data freshness for decision-making.

- Normalized and mapped 30+ custom fields, to power a CFO-level Excel dashboard, enhancing business visibility into deal progression and user activity.

Skills

image Python
image HTML
image CSS
image Javascript
image Git
image GitHub
image Java
image Linux
image Docker
image Pandas
image Scikit-learn
image SQL
image Excel
image Numpy
image Matplotlib

SERVICES

Data Analysis and Visualization

Utilize advanced tools and techniques to analyze data, uncover patterns, and present insights through intuitive visualizations using Python

Predictive Modeling and Machine Learning

Develop and implement predictive models using machine learning algorithms to forecast outcomes and improve decision-making processes. Expertise in Python.

Data Cleaning and Preprocessing

Provide data cleaning and preprocessing services to ensure high-quality, usable data. Skilled in handling missing values, outliers, and data normalization using Python and SQL.

Statistical Analysis

Perform rigorous statistical analysis to identify trends, test hypotheses, and derive actionable insights. Proficient in statistical tools and programming languages such as Python.

Customized Dashboards and Reports

Create interactive dashboards and detailed reports tailored to your business needs, providing clear and actionable insights.

Consultation

Offer consultation services to help organizations leverage data science effectively.

CONTACT ME