Participated in development, bug fixing and optimizing of the DRM (Digital Rights Management) implementation in all recent Sony Ericsson mobile phones, including W550i, W800i, K600i and K800i (in total around 150 variants). This implementation makes it possible for operators to apply usage constraints to content such as date/time limitations and copy protection. Have also been working with version control management (ClearCase).

With his sympathetic and humble attitude Jan makes it a pleasant to work with him. I have learned a lot from Jan since he always has been available whenever I wanted to ask him something. Jan is recommended cordially as colleague.

- Assad Obaid, Software Engineer
worked directly with Jan at Sony Ericsson AB