We are looking for experienced, passionate and creative Python developers to join our Development Team. You’ll work closely with co-workers from various parts of the company creating innovative security software solutions used by some of the largest organizations of the world, offering input and suggestions from an engineering perspective. You have a solid understanding of computer science, software architecture, software-design patterns and testing that you’ll apply to the development of projects. As a Senior Python developer, you’ll lead/mentor junior and mid-level engineers. As a lean team supporting the development of the main product line of a fast-moving company with an open and collaborative environment, we rely on our engineers to be flexible, creative and ready to problem solve across multiple domains. Key activities and responsibilities: Evaluate the complexity of the assigned requirements, estimating its effort, choosing the best solution Evaluate and propose new technologies related to the core business of the company Create back-end and front-end automated test cases Propose new development procedures Work collaboratively within a team of designers and engineers to iterate towards product definition. Be ready to speak your mind, but also commit to team direction Follow quality engineering processes to deliver high quality products and services Work closely with security and IT professionals to ensure safe and secure systems architectures Required skills and aptitudes: Knowledge of standard libraries and well known third party libraries for Python Knowledge of Python best practices Knowledge of design-patterns Intermediate English skills (written) Desired skills and aptitudes: Experience developing under Linux environments Knowledge of TDD (Test Driven Development) Practical experience in security software development Familiar with security and networking protocols Experience working with asynchronous patterns and messaging libraries (rabbitmq, zeromq) Practical experience on performance enhancement and optimization techniques Experience working with Python Web frameworks (Pyramid/Pylons, Django, etc.) Experience with SQLAlchemy ORM