Sebastian Grzyś
Oracle APEX Developer at eSynerga
Brzeg Dolny, Lower Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolSebastian Grzyś is an Oracle APEX and PL/SQL developer with 10 years of experience building database-driven applications and BI solutions, currently delivering APEX systems for SIGI Luxembourg through ABAKUS IT-Solutions. His background spans warehouse and logistics software, Swisslog WarehouseManager implementations, and business analysis roles that bridge technical design with operational requirements. As a long-time freelancer and co-owner of eSynerga, he combines hands-on development with pragmatic consultancy and system integrations. Based in Brzeg Dolny, Poland, he pairs an M.Eng. in Industrial Electronics with deep domain expertise in Warehouse Management Systems, making him skilled at turning complex logistics processes into reliable, auditable IT solutions. An often-overlooked strength is his continuity across the full project lifecycle—from documentation and consulting to development and long-term maintenance.
10 years of coding experience
Master of Engineering (M.Eng.), Industrial Electronics Technology, Master of Engineering (M.Eng.), Industrial Electronics Technology at Technical University in Wroclaw
Polish, English, Russian
Github Skills (45)
speaker9
tuya9
iot-application9
prediction-model9
tasmota9
esp82669
firmware9
arduino9
esp329
ota8
oracle-apex8
custom-component7
spider7
knx7
iot7
Programming languages (6)
Github contributions (5)
sgrzys/docker-oracle-apex-ords
Mar 2016 - Mar 2016
Contributions:2 PRs, 7 pushes in 4 days
tomcatoracleordsjavaoracle-apex
sgrzys/Home-AssistantConfig
Nov 2018 - Nov 2018
Contributions:3 pushes, 1 branch in 15 days
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