HELLO, I’M LESLEY
I’m a data analyst in Kenya, interested in the space between a number and the story it tells. I use SQL, Python and Power BI to make business questions easier to untangle.
Explore selected workStart with a question.
Stay for the evidence.
SELECTED WORK / 03
Business intelligence, public-data research and operations analysis. Explore the question, evidence and decision behind each project.
SYNTHETIC DATA · SQL · POWER BI
Are rising sales translating into stronger profit?
THE FINDING
Sales grew, but the business retained less gross profit from each shilling.
Jan–Aug 2026 vs Jan–Aug 2025 · Synthetic data · Gross profit excludes operating expensesHISTORICAL SURVEYS · PYTHON · SQL
What does having a job tell us about economic security?
THE FINDING
29.7%
of employed people aged 15–64 lived below the household consumption-poverty line.
KIHBS 2015/16 · Approximate 95% interval: 28.4–30.9% · Historical estimate, not a current poverty rateHISTORICAL OLIST DATA · PYTHON · SQL
Where should operations investigate delivery failures first?
LOW RATINGS AMONG REVIEWED ORDERS
Late deliveries have a much higher share of 1–2-star reviews. A one-review-per-order rule keeps the comparison at order level.
Olist, 2016–2018 · Eligible delivered orders with a selected review · Association, not causationMORE CASE STUDIES
COMPETITION MODELLING PROJECT
Does a more complex model add a reliable improvement?
Kaggle competition · Python · Validation and submission results
Explore the experimentWhat do public records show about voter turnout, county spending and Parliament’s work in Kenya?
Historical public records · 47-county explorer
Explore the caseWhat happens to the demand your sales report never sees?
Fictional inventory experiment · Python · Service and waste
Explore the caseABOUT ME
I like a useful question. Especially one that makes a familiar number look a little different.
My work brings together data analytics and business intelligence: asking useful questions, making the evidence understandable, and helping people decide what to do with it.
Since February 2024, I’ve worked independently as a data analyst and business intelligence consultant, building Power BI dashboards, SQL data models and reporting workflows for small businesses.
Before that, I worked in digital marketing and analytics at Park Inn by Radisson (2023–2024), completed a DevOps analytics internship at Atlancis Technologies in 2023, and worked in commercial data analysis and sales management at Unified Meat Packers (2019–2023). That mix of commercial, marketing and technical work shapes how I approach a business question.
I start with the question behind the request, check what the data can support, and turn the findings into practical next steps.
LET’S TALK
I’m open to consulting projects, collaborations and opportunities to work together. If you have a business question, a reporting challenge or an idea that needs a closer look, let’s talk.
