Senior Java Developer

B2C2 is the leading cryptocurrency trading firm in the market today. We are a true principal as a risk market maker to exchanges and OTC clients. Our mission is to bring transparency and efficiency to this new asset class.

Bridging the gap between traditional financial and cryptocurrency markets, we are relied upon by brokerages, exchanges, banks and fund managers to provide 24/7 liquidity. Headquartered in London, with offices in Jersey City and Tokyo, our fast-growing team has deep expertise in traditional financial and crypto markets. 

We pride ourselves on our company culture and ability to attract not only the top talent but the right people. If you are looking for a role in an exciting new industry, at a dynamic company please keep reading.

SCOPE OF THE ROLE

This is an exciting opportunity in which successful candidates will work in one of our Java teams.

Role and Responsibilities

• Develop and maintain efficient Java-based applications and components, ensuring high-quality code and adherence to coding standards
• Maintain and enhance in-house shared libraries, ensuring their reliability and effectiveness
• Write robust, maintainable, thoroughly-tested and well-documented code to meet project goals and deadlines
• Troubleshoot and resolve software defects and technical issues to minimize disruption in revenue-generating processes
• Collaborate with cross-functional teams to define and implement new features
• Participate in code reviews and incorporate feedback
• Maintain and enforce good quality internal documentation

Skills Required

• 8+ years of software development in Java
• Deep understanding of object-oriented programming concepts and advanced design patterns
• Clean and efficient coding style
• Comfortable writing automated tests for own code and extending coverage for existing code
• Experience taking ownership of projects and features end to end, from inception to delivery
• Experience of providing production support to business critical services
• Comfortable with ownership & autonomy
• Ability to work with people at all levels of the organization
• Excellent communication skills both in Polish and English - B2/C1 level

Skills Desired

• Experience with asynchronous event-driven network applications based on Netty
• Experience in a selection of low GC techniques in Java
• Knowledge of relational databases and SQL
• Thorough understanding of web technologies and protocols (e.g. HTTP, Websocket)
• Experience with PostgreSQL, Kafka, Redis or gRPC
• Experience with Linux, Docker, Kubernetes and/or AWS
• Comfortable coding in Python
• Interest in crypto and/or trading