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tivonio/README.md

Tivon Johnson

Applied analytics and data science for business decisions

I use SQL, Python, and applied analytics to work through real business questions.

My background started in finance and accounting, which shaped how I approach analysis. I learned early that small details can make a big difference, so I tend to start with practical questions. What is being measured? Do the numbers line up? What assumptions are built in? And what do the results actually support?

Over time, my work expanded into customer, operational, financial, and market data. The projects here show how I think through that work. I frame the question, structure the analysis, check the logic, and turn messy data into something clear enough to support a decision.


How I think about analysis

Good analysis is more than writing queries or making charts. It starts with asking the right question, making assumptions explicit, and checking whether the data really supports the claim.

My projects show the full workflow. I include the business question, assumptions, validation checks, code, and final interpretation so the analysis is easier to follow and defend.

Projects are pinned below. Each repo includes documentation that explains the question being answered in addition to the code.


Elsewhere

Pinned Loading

  1. python-cfpb-complaint-nlp python-cfpb-complaint-nlp Public

    Work-in-progress. NLP project using public CFPB Consumer Complaint Data to analyze credit card complaint narratives with Python and SQL.

    Jupyter Notebook

  2. sql-churn-analysis sql-churn-analysis Public

    SQL churn series: logo churn, NRR/MRR waterfall, activity churn, and a monthly churn scoreboard on a public SaaS dataset. Follow-up explores churn drivers using support and usage data.

    Jupyter Notebook

  3. sql-reconcile-two-dashboards sql-reconcile-two-dashboards Public

    Reconcile marketing vs finance dashboards with SQL using Pagila dataset

    PLpgSQL