Lead Java Developer

We’re looking for a Senior Core Java Server-Side Developer to help build the next generation low-latency electronic trading platform for U.S. Treasuries, Interest Rate Swaps, and Futures. This is a greenfield development project—an exciting chance to design cutting-edge trading infrastructure from the ground up. You’ll work directly with trading desks, quants, and risk teams to deliver high-performance solutions that power real-time trading. If you thrive in fast-paced environments and love optimizing systems for speed, scalability, and throughput—this role is for you.

• Build and optimize real-time low-latency Java applications handling high-volume trade data
• Collaborate closely with traders, quantitative analysts and technology leads to craft mission-critical systems
• Design and implement robust, multi-threaded highly concurrent components
• Ensure top-notch code quality using modern CI/CD pipelines, testing automation and performance profiling tools
• Contribute to system architecture and design decisions that define the future of electronic trading at Mizuho
• Mentor team members and foster a culture of technical excellence and continuous improvement

• 5+ years of enterprise-level Core Java experience (JDK 11 or 17)
• Deep expertise in multi-threading, concurrency and event-driven development
• Proven success in designing low-latency high-throughput systems
• Strong understanding of performance tuning, memory optimization and network performance

Nice to have

• Experience with Spring Boot, Apache Camel (v3), REST APIs and JMS (ActiveMQ or similar)
• Database knowledge with MS SQL Server or Sybase
• Exposure to monitoring, distributed caching and state management in large-scale environments
• Background in Capital Markets and familiarity with RFQ workflows, TradeWeb, ION or Bloomberg integrations

• Medical, Dental and Vision Insurance (Subsidized)
• Health Savings Account
• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
• Short-Term and Long-Term Disability (Company Provided)
• Life and AD&D Insurance (Company Provided)
• Employee Assistance Program
• Unlimited access to LinkedIn learning solutions
• Matched 401(k) Retirement Savings Plan
• Paid Time Off
• Legal Plan and Identity Theft Protection
• Accident Insurance
• Employee Discounts
• Pet Insurance
• Employee Stock Purchase Program