Senior Software Engineer – Java, Node.js & TypeScript

Tradeweb is a global leader in electronic trading across asset classes, seeking a Senior Full Stack Java Engineer to develop products for major fintech companies and financial institutions. The role involves designing and maintaining high-performance applications and collaborating with cross-functional teams to deliver innovative software solutions.

Responsibilities:

• Design, develop, and maintain scalable, high-performance applications using Java, Node.js, and TypeScript
• Build and maintain RESTful APIs and microservices supporting mission-critical electronic trading platforms
• Develop event-driven applications using Apache Kafka and messaging technologies
• Collaborate with cross-functional teams to design, build, test, and deploy modern software solutions
• Develop scalable backend services and contribute to frontend applications using modern JavaScript/TypeScript frameworks
• Optimize application performance, reliability, scalability, and security
• Participate in architecture discussions, code reviews, and technical design sessions
• Mentor junior engineers and promote engineering best practices

Requirements:

• 5+ years of experience in backend development with strong proficiency in Core Java and Node.js (TypeScript)
• Expertise in building scalable, high-performance backend services using Spring Boot and modern Node.js frameworks (Express/NestJS)
• Strong experience with asynchronous programming, event-driven architecture, and non-blocking I/O in Node.js
• Solid understanding of multi-threading, concurrency, and synchronization patterns in Java
• Hands-on experience designing and implementing distributed systems and microservices architectures
• Proficiency with Kafka, Redis, RESTful APIs, and Java Collections framework
• Experience working with RDBMS (PostgreSQL/MySQL) and data modeling best practices
• Familiarity with API design, service orchestration, and backend integration patterns
• Strong understanding of performance optimization, scalability, and system reliability principles
• Experience with caching strategies, messaging systems, and real-time data processing
• Experience building low-latency, high-throughput applications
• Experience with cloud platforms (AWS, Azure, or GCP)
• Knowledge of electronic trading systems, market data, or capital markets