
AxelSundqvist
Hardware. Software. Systems. Fourth-year M.Sc. student in communication systems at Linköping University. R&D Intern experience in radio hardware drivers at Ericsson.

Where the software touches silicon
I developed radio hardware drivers for Ericsson’s radios, worked target agnostic so one implementation serves several platforms, and delivered the nightly CI hardware tests that verify them.
- Role
- R&D Summer Intern
- Team
- Radio Unit XCS
- Stack
- Embedded Linux · C · Bash

Wireless control system design
I built a wireless ESP-IDF project: the board raises its own Wi-Fi access point and communicates over WebSocket, with FreeRTOS tasks, queues and priorities.
- Target
- ESP32-S3
- Runtime
- FreeRTOS / ESP-IDF
- Protocol
- Wi-Fi AP · WebSocket · SPI

Drying grain with sound
Moving moisture with low-frequency pressure waves instead of heat. I worked with a small R&D team developing and testing infrasound-based grain-drying technology.
- Role
- Intern
- Work
- Prototype · lab test · docs
- Result
- Taken to product

Forecasting over multiple horizons
I wrapped a Temporal Fusion Transformer in a pipeline that produces multi-horizon probabilistic forecasts, with automated nightly CI validation.
- Model
- Temporal Fusion Transformer
- Stack
- PyTorch · Market data vendors
- Validation
- Nightly CI

Who is Axel Sundqvist
Grain dryers, radio hardware, forecasting models. I like turning difficult problems into useful systems.
- Studying
- M.Sc. Applied Physics & EE
- At
- Linköping University, 2023-2028
- Also
- Behind the bar at VilleValla