Python
8+ years in data-focused roles
From first data-science internship (2018) through present. The bar is a date span, not a skill score.
Skills
Tools and domains grouped by how often I use them—no invented percentages. One timeline below is anchored to real dates from my experience.
Engineering
Daily
Occasionally
Data science (core)
Daily
Occasionally
Data engineering
Daily
Regularly
Occasionally
IDE & notebooks
Daily
Occasionally
Data analysis
Daily
Regularly
Machine learning
Regularly
Cloud & delivery
Regularly
Occasionally
Experience
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Certifications
Fundamentals of Visualization with Tableau
Essential Design Principles for Tableau
Visual Analytics with Tableau
Introduction to Big Data with Spark and Hadoop
Python for Data Science, AI & Development
Python Project for Data Engineering
Databases and SQL for Data Science with Python
Hands-on Introduction to Linux Commands and Shell Scripting
Relational Database Administration (DBA)
ETL and Data Pipelines with Shell, Airflow and Kafka
Getting Started with Data Warehousing and BI Analytics
Introduction to NoSQL Databases
Introduction to Statistics
How Google does Machine Learning
Google Cloud Big Data and Machine Learning Fundamentals
Introduction to Data Engineering
Introduction to Relational Databases (RDBMS)
Google Data Analytics (Professional Certificate)
Foundations: Data, Data, Everywhere
Share Data Through the Art of Visualization
Ask Questions to Make Data-Driven Decisions
Prepare Data for Exploration
Data Analysis with R Programming
Google Data Analytics Capstone: Complete a Case Study
Process Data from Dirty to Clean
Python Project: pillow, tesseract, and opencv
Python 3 Programming (Specialization)
Introduction to Probability and Data with R
Using Python to Access Web Data
Using Databases with Python
Capstone: Retrieving, Processing, and Visualizing Data with Python
Python
Data Collection and Processing with Python
Python Functions, Files, and Dictionaries
Python Classes and Inheritance
Python for Everybody (Specialization)
Programming for Everybody (Getting Started with Python)
Python Data Structures
Linux for Developers
Linux Server Management and Security
Analyzing Police Activity with pandas
Introduction to Applied Machine Learning
Machine Learning Algorithms: Supervised Learning Tip to Tail
Data for Machine Learning
R Programming
Exploratory Data Analysis
Getting and Cleaning Data
The Data Scientist's Toolbox
Excel Skills for Business: Essentials
Excel Skills for Business: Intermediate I
Introduction to Data Science in Python
Learn to Program: The Fundamentals
Skill assessments
SQL (Basic)
SQL (Intermediate)
SQL (Advanced)
Python (Basic)
Software Engineer
Problem Solving (Basic)
Projects
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