A company I work for is looking to hire a senior Java developer (yes, I work for two different companies). Katasi is helping stop unsafe driving by limiting cellphone functionality. Right now it is a small engineering team. They have a POC running, and are looking to build the next generation of their system.
They are looking for someone who can take requirements and run with them. We are using Camel and Mongo and Rabbit MQ, among other technologies. You can see more here: http://groovement.com/company/ or feel free to ping me with questions.