IT - Defi Connectivity Developer - London

IT – Defi Connectivity Developer – London London 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: As a Blockchain Developer on our DeFi team, you\’ll work directly within our DeFi team to develop and implement strategies for liquidity provision, yield optimization, and automated trading across various DeFi protocols. You\’ll help build robust systems that interact with multiple blockchain networks while ensuring security, efficiency, and profitability. Duties and Responsibilities: Develop and maintain software that interacts with blockchain networks. Implement trading strategies across DeFi protocols (DEXs, lending platforms, yield aggregators). Create tools for wallet management, transaction monitoring, and risk assessment. Optimize code for efficiency, reliability, and gas/transaction fee management. Collaborate with trading and research teams to implement new strategies. Stay current with DeFi ecosystem developments and identify new opportunities. Participate in code reviews and ensure best practices for security. Required Skills and experience: Product ownership mentality. Excellent communication and interpersonal skills. A problem solver with a keen eye for detail. A self starter – able to take and own a problem and, by seeking assistance where needed, follow it through to resolution. Minimum 5 years of professional software development experience. Strong understanding of blockchain architecture and consensus mechanisms. Experience interacting with blockchain networks via RPC nodes. Practical knowledge of cryptocurrency wallets and key management. Familiarity with major DeFi protocols (e.g., Uniswap, Aave, Compound, etc.). Proficiency in Python and/or Java. Experience with secure coding practices and cryptographic principles. Strong analytical and problem-solving skills. Ability to work independently and in a fast-paced environment. Preferred Qualifications: Experience with EVM (Ethereum Virtual Machine) and Solidity. Knowledge of Solana Virtual Machine and Rust programming. Previous work in cryptocurrency trading, market making, or financial services. Experience with algorithmic trading systems. Contributions to blockchain or DeFi open-source projects. Understanding of market microstructure and trading concepts. 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. #J-18808-Ljbffr