About us: B2C2 is a digital asset pioneer building the ecosystem of the future.The firm has unlocked institutional access to crypto by providing reliable liquidity across market conditions. B2C2’s success is built on crypto-native technology and continuous product innovation, making it the partner of choice for diverse institutions globally.Founded in 2015 and acquired by Japanese financial group, SBI, in 2020, B2C2 remains a standalone company. Headquartered in the UK, with offices in the US and Japan, B2C2 OTC Ltd. is authorised and regulated by the UK’s Financial Conduct Authority (FRN 810834). 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. About the role: The Risk Technology team develops and maintains high-performance position keeping and valuation software for global trading. These trade booking and risk management systems power signals for strategies, treasury operations and risk management. We focus on optimising every component of the stack—including multi-threading, network communication and encoding, to achieve low latency and high throughput. Robust monitoring, alerting, and performance tracking ensure system reliability and uptime. The team possesses deep expertise in complex event processing systems, network architectures, and concurrent computing, supporting a complex and high-frequency trading landscape. We work closely with the Chief Risk Officer and wider Risk, Operations, Trading and Quant teams. Our internal customers cover the whole spectrum of risk, from low latency signals for strategies through point in time and historical regulatory reporting, then on to forward looking stress testing and VaR models. We are looking for a Senior Java Software Developer to join our Risk Technology team. This is an opportunity to gain experience in High Frequency Trading (HFT) platforms while contributing to the growth of the business. This role is based in our London office, with the option to work remotely up to two days per week. Duties and Responsibilities:
Develop and maintain efficient Java-based applications and components, ensuring high-quality code and adherence to coding standards. Understand end to end risk data flows. Improve our automation framework. Identify and fix inefficiencies in the plant. Maintain and enhance in-house shared libraries to ensure their reliability and effectiveness. Write robust, maintainable, automatically tested and well-documented code to meet project goals and deadlines. Troubleshoot and resolve software defects and technical issues to minimise disruption in revenue-generating processes. Collaborate with cross-functional teams to define and implement new features. Participate in code reviews and incorporate feedback to enhance the code. Maintain and enforce good quality internal documentation.
Required Skills and experience:
Experience in TradFi spot FX, rates or equity markets. 5+ years of software development in Core Java (J2SE). Deep understanding of object-oriented programming concepts, and design patterns for performance, scalability and safety of delivered solutions. Clean and efficient coding >
Preferred Qualifications:
Experience in TradFi or DeFi derivatives markets. Understanding of network technologies and protocols (e.g. TCP, gRPC, SBE). Experience with asynchronous event-driven applications. Understanding of low GC, highly efficient coding in Java. Experience with Kafka, Redis or Aeron. Experience with Linux, Docker, Kubernetes and/or AWS. Knowledge of relational databases and SQL. Comfortable coding in Python. Interest in crypto.
What we offer:
An amazing global culture who are ambitious, innovative and fun while working with the highest levels of honesty and integrity. Two discretionary bonus awards a year. A range of benefits in line with local market practice. Regular fun events and activities, as well as Social Impact volunteering days. A strong culture is a common denominator among the most successful companies and B2C2 is proud to be a values-based company.
Ambitious - Striving to make history through world class achievements Innovative - Forward looking in our solutions for clients and employees Meritocratic - Rewarding positive contribution across the organisation Collegiate - Achieving through teamwork through a healthy environment Risk Aware – Informed decision making and considered in our practices
Equal Employment Opportunities Policy: B2C2 is committed to a policy of equal employment opportunity for applicants and employees and we welcome applicants from all backgrounds. It is the policy of B2C2 to apply recruiting, hiring, training, promotion, compensation and professional development practices without regard to actual or perceived race, colour, religion, sex (including pregnancy, sexual orientation and gender identity), national origin, age, disability or certain classifications based on genetic information, or because someone is married or in a civil partnership or any other characteristic protected by federal, state or local laws, regulations or ordinances. As such, B2C2 will not tolerate discrimination against any of our employees on the basis of membership in a protected category. We are also committed to creating an inclusive environment to ensure we attract, engage, promote and retain the best talent. We will consider flexible working arrangements for any of our roles.
