Position Summary:We are looking for a talented Senior Python Engineer to join our Blockchain integration team. This is a remote role, and we are flexible with considering applications from anywhere in Europe. As part of our Blockchain integration team, you will play a critical role in integrating additional blockchains and protocols into the Crystal platform.More details: crystalintelligence.comDuties and responsibilities: Integration of blockchains, tokens and bridges within Crystal's platform; Maintain code to high-quality standards; End-to-end feature designing and implementation; Code, debug, test and deliver features and improvements in a continuous manner; Provide code review, assistance and feedback for other team members; Refactor code as necessary. Required: 5+ years commercial experience in developing Python backend services and API for Web or Mobile Apps; Solid software architecture skills; Strong knowledge of SQL/NoSQL databases and data architecture; Experience with a Flask framework; Knowledge of Unit Testing principles; Experience in developing service-oriented solutions; Understanding of the process of integration with external services; Product-oriented mindset; Proficiency in English. Would be a plus: Hands-on experience with PostgreSQL; Hans-on experience in big data, key-value and other storages; DevOps skills for working in development environment; Experience with open source solutions; Passion for Bitcoin and Blockchain technologies; Experience with distributed systems, like cryptocurrencies and blockchain technologies.