Jonas Minnberg

Worked at a startup that tried to create a mobile/social (metaverse like) avatar chat application, involving things like customizable (3D) avatars, multi user rooms, face tracking, voice chat, AI avatars, voice to text and text to speech.

We used Unity (plus some native parts in C/C++ & Objective C) on the frontend and Firebase (with typescript) on the backend.

Was tasked with rewriting a legacy SDK implemented independently in Swift (for iOS) and Java (for Android) into a single, portable C++ library.

Involved careful refactoring of Java code to be able to isolate parts that could be moved over to C++ gradually. Also involved careful unit testing to prove the new implementation worked, and understanding and documenting the domain.

Wrote the flash games Farm King and Circus Surprise, then joined the team developing the first Facebook Saga game, Bubble Saga. Worked on a canceled Hidden Object game based on Sherlock Holmes, and finally worked for a while on the so called Growth team where I did C++ programming for Candy Crush Saga.

Design, implementation and documentation of a technology named Swimmer, a Virtual Machine for small devices. C++, Python and Java/J2ME.

Swimsuit Boys was a company I started together with a few old colleagues, to develop a technology I had started on my spare time; A thin client application with a fast virtual machine, and a server infrastructure that could send down code and data to connected clients.

The old specification can be found here;
https://drive.google.com/file/d/0BxReCPuJN0v5WXZLTzYxaXM4QUdHeXJPSWgzOVFYN2hZcG1n/

After Battlefield 2 was complete, I left for a smaller company that did 3D visualization, mostly of infrastructure like housing areas, airports etc. There me and the two other programmers started developing a replacement for the old application used for displaying these visualizations. Tasks included core functionality like resource, document and configuration handling - as well as advanced 3D programming like realtime (cascaded) shadow maps and tree/forest rendering (using Speedtree).

I left Amuze (as many had previously and many since) because of what had become an unbearable work situation and was offered a position at Dice to help start up a new PS2 project. After several months this project was canceled however, and I was moved over to the Battlefield 2 team, where I worked in the rendering team, working on things like the lightmap renderer and the realtime water.

After returning from England I went back to Amuze who had just started up again in it’s new form. For the sequel to Headhunter, instead of writing everything ourselves a lot of third-party products was used. Renderware and Renderware Studio from Criterion was chosen, together with other game middleware such as Karma (for physics) and Kynogon (for AI). I have mostly been working on core functionality such as the texture cache/streaming, memory system, a visibility manager and PS2-specific parts.

Writing a spline road renderer for Driver 3

After Amuze had to let everyone because of economical problems I choose to move to England to start work as a render programmer for Reflections Interactive in Newcastle (Creators of the Driver games, and recently Stuntman). I was assigned to writing the spline renderer for the roads in Driver 3. However, l did not enjoy England at all and unfortunatly I had to resign after only 5 months.

When I started at Amuze I jumped right into the development of Headhunter, one of Sega Europe’s biggest productions. After working on smaller tasks in the game-engine, my previous work with network programming got me assigned to the task of writing the multiplayer portions of Headhunter. However, due to financial problems, Sega decided to cut the multiplayer gaming in favor of a PS2-port. Even though I was sorry to leave the nearly finished online racing code and server behind, I quickly set myself out to learn the PS2-hardware. The last months at Amuze I ported most of Dreamcast 3D-engine to PS2, learning a lot about porting between different hardware in the process. Finally, as we could move some people over from the Dreamcast-version, I also had to act as a teamleader for other programmers while still trying to maintain focus on programming.

I left Webray for Upright, a more traditional IT-company, where I worked on many different projects. These included:

Ericsson
Short project to rewrite/update parser software used for switchboard development.

ABB Lummus Global
Upright was a sub-contractor for ABB Lummus Global, who in turn had the gigantic task of upgrading and modernizing the oil facilities of Lagoven, the Venezuelan state-owned oil company. I worked mostly with the middleware (Tuxedo from BEA), the layer of service-routines that dictated the access to the database.

RFV
I worked together with a lot of other programmers and people from RFV to modernize the case handling system for the Swedish National Security organization.

OK/Q8
A prototype for a car-rental system that I was a project-leader for but which wasn’t finished by the time I left the company.

Spray
I worked on their WAP-portal, writing java server pages for spray mail and such.

Webray was a company that developed software and sold measure-instruments to the paper industry. My work mainly involved writing communication-software that parsed measurement data and made them available to windows-clients, but I also wrote a lot of low-level code to actually perform the measuring - both in x86 assembler and stranger languages like Forth (!) and PLC (Programmable Logic Circuits) assembler. The job also involved a lot of on-site programming and support which could be exiting at times, especially since a programming error could cut the paper and stop the machine which usually cost the paper company around $10000 - $15000 per hour.