Aaron G. Sellin
Software Engineer
aarongsellin.dev
Software engineer based in Sweden, building systems that work at scale. Broadcast hardware control, developer infrastructure, and consumer products.
Software engineer at BST Devices, building low-level control systems for Sony, Panasonic, and Blackmagic broadcast hardware. I'm involved in the full dev cycle from feature description, to delivery and support.
I got into coding early through a mix of electronics and programming, starting out by building some truly terrible games in GMS2. Since then, that curiosity has turned into a drive to keep learning, go deeper, and become the kind of engineer who understands systems all the way through.
To me, being full-stack isn't just about knowing React and Express.js. It's about being able to dig deeper and understand the entire system, from the electrical signals on a PCB all the way up to what's rendered in a browser.
Alongside personal projects I take on freelance work. Primarily helping businesses audit and harden web applications built with tools like Lovable. That means reviewing generated code for security gaps (exposed API keys, missing auth guards, insecure data flows) and advising on what to fix before going live. I also help with general developer tasks: debugging, integrations, and light feature work.
References available on request, get in touch if you have something in mind.
Deploy and manage your own infrastructure with full control, at a fraction of typical cloud costs.
Multiplayer music trivia game with Apple Music SDK. Focused heavily on stable session recovery.
Find a time that works for everyone. Real-time scheduling for trips and events with multiple people. Foucsed on documentation, and minimal usage footprint.
Whether you have a project in mind, a role to fill, or just want to say hello. I'd like to hear from you.
aaron.gotthardsson@gmail.com