brainbot technologies is working on cutting edge blockchain development. We are a major contributor to Ethereum, a Blockchain 2.0 system which supports turing complete smart contracts and is a platform for rapid development of decentralized applications (DApps). The platform also comes with a secure messaging infrastructure (Whisper) and a DHT based storage (ipfs).Our core product is HydraChain which is an extension to Ethereum for enterprises.ResponsibilitiesYou’ll work on the client core and/or build applications based on the Ethereum and HydraChain platforms. Most of the work will be on open source software.To get an idea about the tools we are using, please take a look at the code:

• https://github.com/HydraChain/hydrachain
• https://github.com/ethereum/pyethapp
• https://github.com/ethereum/wiki/wiki/White-Paper

As we are relying on PyPy and gevent, we are currently using Python 2.7 but plan to move to Python 3 once PyPy is compatible with Python 3.3.Note: We do not use Django. The architecture of decentralized applications which are build on top of Ethereum is: local ethereum-node <- jsonrpc -> HTML/JSWhile building distributed applications on top of the Ethereum stack might be one of your tasks, the focus will be on core development. Essential Skills & Experience

• Strong Python skills
• Experience in an open source community
• Experience building and maintaining products with real-world usage
• Experience in testing and continuous integration
• Attention to detail – awareness that the applications here are mission critical  
• Ability to own what you are building and see it through from end to end
• Knowledge of git and git workflows
• Fluent in English (oral and written).

Desirable   

• Good C++ skills
• Experience in profiling code
• Experience with blockchain technology
• Experience with cryptography
• Experience with p2p and networking