Paul Szczepanek
Staff Software Engineer at Arm
Cambridge, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolPaul Szczepanek is a Staff Software Engineer based in Cambridge with eight years focused on embedded systems, connectivity and IoT across industries. He leads an Arm team delivering wireless connectivity features for an RTOS—owning GitHub repos, CI/process, and community contributions—while mentoring engineers and coordinating upstream patches. His background spans low-level Bluetooth (BR/EDR and BLE) stack development at Qualcomm, constrained SoC optimisation, and cross-layer embedded work from drivers to cloud-connected features. An active contributor to the widely used ARMmbed/mbed-os project, he has improved BLE security and Cordio controller integration, showing both protocol depth and practical security engineering. Paul’s early career in game and graphics tooling gives him a rare blend of systems-level rigor and product-minded prototyping skills.
8 years of coding experience
8 years of employment as a software developer
Bachelor of Computer Science, Computer Science, grade 5 (equivalent of a 1st), Bachelor of Computer Science, Computer Science, grade 5 (equivalent of a 1st) at AGH University of Science and Technology in Cracow
English, Polish
Github Skills (11)
firmware10
bluetooth-le10
c-language10
btle10
cprogramming-language10
bluetooth-low-energy10
sys9
embedded9
architecture8
architectures8
documentation7
Programming languages (7)
Github contributions (5)
ARMmbed/mbed-os
Dec 2017 - Jul 2021
Arm Mbed OS is a platform operating system designed for the internet of things
Role in this project:
Back-end Developer
Back-end DeveloperContributions:348 reviews, 1063 commits, 137 PRs in 3 years 8 months
Contributions summary:Paul's commits focused on enhancements to the BLE stack's security implementation within the `mbed-os` repository, specifically addressing features related to the Cordio Bluetooth Low Energy (BLE) controller. The commits involve refactoring and modifying the security and connection handling mechanisms, including key distribution, peer address handling, and the integration of signing functionalities. Furthermore, the user has actively updated the project's documentation. The commits also address the translation of HCI types, and the testing of BLE stack.
internet-of-thingsmbedoperating-system
ARMmbed/mbed-os-example-ble
Nov 2017 - Jul 2021
BLE demos using mbed OS and mbed cli
Contributions:1 release, 45 reviews, 224 commits in 3 years 8 months
climbed
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