Peter Harper
Software Engineer at Raspberry Pi (Trading) Ltd
Cambridge, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolPeter Harper is a seasoned software engineer with over two decades of experience in embedded and mobile systems, currently developing low-level firmware and drivers at Raspberry Pi. He has a proven track record shipping real devices and features—from camera ISP work on Broadcom-powered Android phones to bootloader and NVMe/USB improvements for Raspberry Pi 4/5. Equally comfortable in C/C++ on bare-metal platforms and scripting tooling in Perl, he contributes to high-profile open-source projects like Raspberry Pi's pico-sdk and MicroPython, bringing TLS, Wi‑Fi/Bluetooth and DMA-level fixes into production. Known for on-site collaboration across vendors and rapid hardware bring-up, he combines rigorous debugging (JTAG/FPGA) with pragmatic design to get products over the line. He values interesting technical challenges and often bridges the gap between system architecture and practical shipping constraints.
5 years of coding experience
19 years of employment as a software developer
Computer Science, Computer Science at University of Manchester
Github Skills (37)
bootloader10
raspberry-pi-pico10
py10
rp204010
firmware10
bluetooth-le10
cmake10
spi10
c1110
nvme10
c1710
iot10
device-driver10
driver10
sys10
Programming languages (5)
Github contributions (5)
raspberrypi/pico-sdk
Sep 2022 - Jan 2023
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:256 reviews, 7 commits, 83 PRs in 4 months
Contributions summary:Peter primarily contributes to the Raspberry Pi Pico SDK, focusing on low-level driver and system-level software development. Their work includes modifying the CYW43 Wi-Fi driver, implementing features such as BSSID connection options and enabling/disabling STA mode. They've also addressed build issues and incorporated the mbedtls library for TLS support. Further contributions involve fixing compile issues and adding functionalities to the Bluetooth stack, including supporting memory allocation and deallocation, and addressing buffer corruption issues.
raspberrypi/pico-examples
Sep 2022 - Jan 2023
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:91 reviews, 7 commits, 91 PRs in 4 months
Contributions summary:Peter primarily contributed to example code within the `pico-examples` repository, focusing on the Raspberry Pi Pico W. They implemented various Wi-Fi and Bluetooth examples. Key contributions included adding examples for i2c slave communication, a TLS client, an HTTP client with TLS verification, and fixing issues within existing examples to enhance functionality and address build problems. They also worked on the i2c and PIO related examples.
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