Callum Dunster
Freelance Software Engineer
Amsterdam, North Holland, Netherlands
Summary
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Rockstar🎓
Top SchoolCallum Dunster is a freelance software engineer in Amsterdam with 8 years of deep embedded systems experience, from firmware for smart locks to EV charging software and smart metering RTOS on ARM Cortex devices. He pairs hands-on firmware and PCB design skills with product thinking, having moved into embedded architecture and product ownership at EVBox before returning to freelance work. Callum champions testable, automatable delivery pipelines for embedded software and has practical experience building OTA bootloaders and hardware abstraction layers that meet industry standards like ZigBee PRO and MISRA. Notably, he blends low-level C/C++ expertise with system-level tooling—creating Python GUIs for secure OTA reconfiguration and adapting radio stacks to bespoke requirements—making him comfortable across the full embedded product lifecycle.
8 years of coding experience
11 years of employment as a software developer
Scarborough Sixth Form CollegeBachelor of Engineering with honors (BEng Hons) Robotics and Mechatronics, Bachelor of Engineering with honors (BEng Hons) Robotics and Mechatronics at University of Central LancashireHeadlands School & Community Science College
Github Skills (53)
linux10
std10
industrial10
distributed-computing10
dapps-development10
holochain10
blockchain10
rust10
p2p10
macros9
home-manager9
holochain-rust9
serde9
hal9
api8
Programming languages (5)
Github contributions (5)
cdunster/NixOS
Feb 2022 - Mar 2025
Contributions:4 PRs, 389 pushes, 10 branches in 3 years 2 months
cdunster/embassy-mock
Aug 2023 - Dec 2024
An unofficial collection of mocked types for the embassy framework
Contributions:3 reviews, 38 PRs, 45 pushes in 1 year 4 months
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