Web3 Java Jobs in London, United Kingdom

Who We Are:Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building the products and services to make that future a reality. Our institutional digital assets platform spans trading, investment banking, asset management, staking, self-custody, and tokenization technology. We also invest in and operate cutting-edge data center infrastructure to power AI and high-performance computing, addressing the growing demand for scalable energy and compute in the U.S. We work at the intersection of finance and technology, helping institutions, startups, and developers navigate a digitally native economy. Led by CEO and Founder Michael Novogratz, our team blends deep crypto expertise with institutional experience and a shared commitment to shaping the future of Web3 and AI. Galaxy is headquartered in New York City, with offices across North America, Europe, the Middle East, and Asia. To learn more about our businesses and products, visit www.galaxy.com.

What We Value:

We are a diverse team of free thinkers, and fast movers united to help investors and creators energize the global economy. We are looking for individuals who thrive in a culture of builders and overachievers and embrace high performance, transparent feedback, and a mission-first approach. Our culture shapes our way of working and gets us where we want to be.

• Seek Excellence.
• Be Selective To Be Effective.
• Be Highly Aligned, Loosely Coupled.
• Disagree Transparently.
• Encourage Independent Decision-Making.
• Build Dream Teams.

Who You Are:

We are seeking a highly skilled Quantitative Developer to join our Crypto trading desk. The successful candidate will collaborate with traders, quants, and other developers to design, implement, and optimize market making and quantitative trading strategies. This role requires a strong background in software development, quantitative analysis, and financial markets, particularly in the FX and Crypto trading domains.

What You’ll Do:

• Develop, implement, and maintain high-performance trading algorithms and models for Crypto markets
• Collaborate with traders and quantitative analysts to understand trading strategies and translate them into efficient code
• Optimize existing trading systems for speed, reliability, and scalability
• Integrate new data sources and ensure data integrity for accurate model input
• Monitor and troubleshoot live trading systems, ensuring minimal downtime and optimal performance
• Stay up-to-date with the latest advancements in quantitative finance, software development, and Crypto markets
• Contribute to the continuous improvement of development processes and tools
• Embrace and champion the thoughtful adoption of AI to improve team performance and business outcomes
• Leverage AI tools (e.g., generative AI, automation platforms, data copilots) to improve productivity, decision-making, and output quality in your day-to-day work

What We’re Looking For:

• Experience working in algorithmic trading environments in Java.
• Knowledge of tick data analytics and real-time market data processing.
• Familiarity with cloud-based market access or hybrid deployments.
• Proven experience in developing and implementing quantitative models andtrading algorithms
• Strong programming skills in Java
• Experience with high-frequency / low-latency trading systems
• Experience working on an FX or Cryptocurrency trading desk
• Experience in integrating and executing strategies on DeFi platforms (SOL/ETH)
• Excellent communication skills, both written and verbal

Bonus Points:

• Experience in the DeFi, or crypto
• Experience with market making / market making as a service
• Exposure to regulatory or compliance-driven environments
• Familiarity with cloud-based infrastructure (e.g., AWS, GCP) or DevOps processes

What We Offer*:

• Competitive base salary and discretionary bonus
• Company-paid health and protective benefits for employees and their eligible dependents
• Free virtual coaching and counseling sessions
• Opportunities to learn about the Crypto industry
• Smart, entrepreneurial, and fun colleagues
• Employee Resource Groups

*Benefits may vary depending on location.

Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age, race, color, creed, religion, sex or gender (including pregnancy, childbirth, lactation and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, marital or partnership or caregiver status, ancestry, national origin, citizenship status, disability, military or veteran status, protected medical condition as defined by applicable state or local law, genetic information or predisposing genetic characteristic, or other characteristic protected by applicable federal, state, or local laws and ordinances.

We will endeavor to make a reasonable accommodation to the known limitations of a qualified applicant with a disability unless the accommodation would impose an undue hardship on the operation of our business. If you believe you require such assistance to complete the application process or to participate in an interview, please contact