Hello, I’m Timothy Osborn.
Accomplished Power BI Specialist and CPA with a unique ability to bridge the gap between complex technical requirements and strategic business goals. Drawing on experience at Microsoft and major enterprises like Lion, I design high-performance, scalable data solutions that transform raw numbers into actionable insights.
My background in finance ensures that every semantic model and dashboard I build is commercially relevant and accurate. I specialize in advanced DAX, data modeling, and performance tuning to deliver robust forecasting and reporting tools that empower leadership teams to make faster, data-driven decisions.
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Power BI
Curriculum Vitae (CV)
This Power BI CV to transforms my 14+ year career history into an interactive story.
It showcases my technical skills and ability to derive insights, balancing a high-level timeline with detailed, on-demand information for each role.
The entire report, including the timeline, was created using only standard Power BI visuals and creative workarounds.
When the slicers on the bottom left selected and the position details, skill utilisation and systems will update.
Custom tooltips on the timeline provide more info about each company.
The report is hosted on my own Power BI Service account with the career details file stored in the cloud on a daily refresh so the timeline will remain up to date.
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Hospital Revenue Performance & Drivers
This report actually helped me to land my first PBI Dev contract with a private healthcare provider.
This is why it’s good to have a report showcase portfolio.
Even better if your data is related to the industry in which you would like to work.
The report features the New KPI visualization, custom tooltips, and uses colour mostly to draw the report user’s attention to items of interest.
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Onyx Data Challenge,
Sales Analysis
This report gives insight into customer sales metrics like moving averages, new/returning customers, and satisfaction metrics.
The middle line chart uses a secondary y-axis that consistently shows all sales when dimensions are filtered, so the user can see what proportion of the whole the selected dimensions make up.
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Service Profit Analysis
This project explores the capabilities of field parameters.
Field parameters are a winning PBI feature for building highly interactive visuals. In this example users can dynamically control the displayed metrics, adjust date granularity, and see appropriate number formatting with the click of a button.
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Revenue Analysis
This report focuses on showing variances to a selected metric (target, last year or 2 year’s ago).
The KPI in the top right shows an overview of the selected year and all of the comparatives while the line chart gives the detail on a monthly basis. This report also makes use of the very awesome PBI feature, field parameters.
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Revenue & Gross Profit Dashboard
This report makes use of a Top N selection as per business line (department).
This report also makes some great use of field parameters for selecting visible chart metrics. Report users are also able to sort the charts by revenue or gross margin via a slicer.
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Variance Highlights with Stacked Bars
An exploration of what can be done with stacked bar charts in Power BI, this report showcases an alternative way of presenting a variance to last year.
The size of the variance is represented by the red or green stack to quickly show the reader where the gains and losses are coming from.