Senior Java Engineer – (e-Trading & Low-Latency Systems)

Role: Senior/Lead Java Engineer – E-Trading & Low-Latency Systems

Location: Toronto, ON (Hybrid)

Duration: Fulltime Opportunity

Required Skills:

• Core Java strong
• Multithreading
• Memory Management
• Low latency
• E-trading
• Pre trade
• Front office trade
• Java version 17 or 21
• Some recent AI Exp.
• Design level
• Virtual Threading
• solace messaging queue

Responsibilities:

• Design, develop, and maintain high-performance applications for e-trading, pre-trade, and front-office trading platforms.
• Develop scalable, reliable, and low-latency services using Core Java and Java 17/21.
• Perform high-level and low-level design for complex distributed systems.
• Implement multithreaded and concurrent applications using Java concurrency frameworks and modern programming techniques.
• Evaluate and apply Java Virtual Threads where appropriate to improve scalability and resource utilization.
• Optimize application performance, throughput, latency, CPU utilization, memory usage, and garbage collection.
• Build event-driven and asynchronous solutions using Solace messaging or equivalent enterprise messaging technologies.
• Design and implement messaging flows using queues, topics, guaranteed delivery, persistence, retries, acknowledgments, and recovery mechanisms.
• Support pre-trade workflows, order processing, trade capture, order routing, risk checks, and execution-related services.
• Collaborate with product managers, business analysts, traders, architects, and technology teams to translate requirements into robust technical solutions.
• Participate in architecture reviews, design discussions, code reviews, and technical decision-making.
• Troubleshoot complex production issues involving application performance, concurrency, messaging, and distributed systems.
• Develop unit, integration, regression, and performance tests to ensure software quality and reliability.
• Contribute to CI/CD pipelines, automated deployments, observability, and production monitoring.
• Explore and implement appropriate use cases for AI and Generative AI, including AI-assisted development, automation, analytics, documentation, testing, and operational support.
• Mentor junior and senior engineers and promote coding standards, clean architecture, and engineering best practices.
• Produce technical documentation, architecture diagrams, sequence diagrams, and operational runbooks.