Fahad Khan

Overview

I help businesses turn raw, messy data into clear dashboards and decisions. I work with SQL, PostgreSQL, Python (pandas, NumPy), Power BI, and Advanced Excel to clean, analyze, and visualize your data so you can see what’s working, what isn’t, and where to act.

My background in software testing (aerospace domain) means I’m meticulous about data accuracy. I validate every dataset, check edge cases, and document my logic so you can trust the numbers.

Services I Offer

1. Interactive Power BI Dashboards
Custom dashboards with KPIs, drill-downs, and DAX measures for sales, customer, operations, or finance reporting. Delivered as a .pbix file with a short walkthrough.

2. Data Cleaning & Preparation
Fixing duplicates, missing values, inconsistent formats, and merging multiple sources using Python (pandas) or Excel Power Query, so your data is ready for analysis.

3. SQL Querying & Database Analysis
Writing optimized queries (joins, CTEs, window functions, aggregations) in PostgreSQL and other SQL databases to answer business questions or build reporting datasets.

4. Exploratory Data Analysis (EDA) & Insights Reports
Finding trends, patterns, and anomalies in your data, summarized in a clear report with visuals and recommendations.

Tools & Skills:
Python (pandas, NumPy) · SQL · PostgreSQL · Power BI · DAX · Advanced Excel · Power Query · ETL · Data Cleaning · EDA · Data Visualization

How I Work:
1) I clarify your goals and the questions you want answered.
2) I review the data for quality issues before analysis.
3) I deliver the analysis, dashboard, or queries.
4) You get the files, documentation, and a revision round to make sure it fits your needs.

Why Work With Me:
1) Strong attention to detail and data validation from a QA background
2) Clear communication, with plain-language explanations of findings rather than jargon
3) Reproducible work with documented queries and clean files
4) Fast turnaround and honest timelines