Jaap Pieroen
Teamlead Reporting Finance at Essent
's-Hertogenbosch, North Brabant, Netherlands
Summary
👤
Senior🎓
Top SchoolJaap Pieroen is a Business Intelligence and Data Engineering leader with 12 years’ experience building finance-focused reporting ecosystems and leading teams through reporting transformations. He combines hands-on technical skills—Power BI, Azure, T-SQL, DAX, Python—and architecture experience (Kimball-style data marts and semantic models) with change management and C-level stakeholder collaboration to deliver single-source-of-truth solutions. Known for migrating legacy BI platforms and reverse-engineering SAP feeds into modern Azure pipelines, he repeatedly improves cost control, customer insight, and sales performance across multi-entity organizations. Based in 's-Hertogenbosch, he now leads Finance Reporting at Essent, blending practical implementation with team leadership and a pragmatic focus on actionable, auditable metrics. An avid coffee enthusiast, he pairs methodical engineering with a preference for clear, business-oriented analytics.
12 years of coding experience
8 years of employment as a software developer
HBO, Business Informatics, HBO, Business Informatics at Fontys University of Applied SciencesUniversity, Informatics, University, Informatics at Open Universiteit
Github Skills (61)
chronological10
custom-component10
python10
mqtt10
internet-of-things10
asyncio10
iot10
home-assistant10
raspberry-pi10
python-scripts10
home-automation10
sdl9
home-assistant-integration9
exif9
pid9
Programming languages (9)
Github contributions (5)
jaapp/smart-grind-by-weight
Sep 2025 - Feb 2026
Touchscreen ESP32‑S3 controller and load cell for precise coffee dosing.
Contributions:1 release, 5 PRs, 150 pushes in 5 months
touchscreen
jaapp/ha-marstek-local-api
Oct 2025 - Nov 2025
Home Assistant integration for Marstek energy storage systems using local API
Contributions:6 releases, 2 PRs, 51 pushes in 1 month
home-assistant-integrationbattery-managementcustom-componenthacshome-assistant
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.