Hi! I'm Sebastian Hällman

M.Sc. in Media Technology

Recently graduated from KTH. Looking for frontend and fullstack roles with a strong UX and accessibility focus.

Sebastian Hällman wearing a suit, seated in his wheelchair

About Me

I'm Sebastian, a recently graduated media technologist from KTH. I build accessible web products and like unfamiliar problems — collaborative editors, wearables, and 3D on the web — with a background in HCI.

Skills

Frontend

HTML
CSS
JavaScript
TypeScript
React
React Native
Vue
Three.js

Backend & CMS

Node.js
Python
PHP
Django
MySQL
Firebase
WordPress

Hardware

Flutter
Arduino

AI tools

Cursor
Codex
Claude

Work Experience

Sebbes webbyrå - Owner & Founder

Summer 2020 - January 2026

I started a small web agency right before my studies at KTH to be able to take small jobs and help with small tasks. I don't work actively with this, but I host a few websites for some clients and do maintenance work for them. This agency closed down in January 2026.

Stockholms Rehabklinik - IT-consultant

December 2019 - Summer 2020

I was hired by Stockholms Rehabklinik to help them maintain their internal booking tool that they use for customers. It is built in Django. I still help them but now by offering services from my small business Sebbes Webbyrå.

Royal Institute of Technology - Teaching assistant

January 2023 - February 2023

I was a teaching assistant in the course DH2624 Interaction Programming and the Dynamic Web where I assisted students with their labs in JavaScript. I also debugged the automatic tests that was used in the labs.