
Sahil jax
Data analysts and visualizer
Competenze

Consulta i miei servizi

Portfolio
Esperienza lavorativa
Freelance Data Analyst And Automation Developer
Self Employed • Lavoratore autonomo
Aug 2025 - Present • 1 yr
As an independent freelance developer, I have successfully delivered 10+ end-to-end data cleaning and visualization projects. I specialized in handling large, complex datasets ranging from 20,000 to 400,000 rows with up to 20 columns of raw data. Using Python, Pandas, and Jupyter Notebooks, I built custom automation pipelines to perform deep data cleaning, handling missing values, duplicates, and data types without ever altering the client's original raw data. Instead, I carefully appended new, cleaned columns side-by-side for 100% data integrity and easy comparison. For every project, I delivered two key components: a highly detailed text (.txt) log report documenting every single error fixed for technical auditing, and a custom interactive HTML/CSS/JavaScript dashboard featuring advanced, easy-to-read visual charts and KPI cards for seamless business analysis.