Algo Java Developer

ioTech Solutions; Hong Kong; On-site; HKD 600,000 - 900,000; Full time

Job summary

ioTech Solutions in Hong Kong is seeking a senior backend engineer to design, develop and maintain Java-based and C++ systems for equities trading and financial markets. You will build high-performance, event-driven services across the full SDLC.

Collaborate with business and technology stakeholders to deliver robust, production-ready solutions. You will work in an Agile environment, focusing on code quality, testing and scalable architectures, with emphasis on JVM internals, memory management

Qualifications

• Experience building large-scale, fault-tolerant, distributed systems.
• Strong Java and/or C++ development for high-performance systems.
• Knowledge of financial markets and instruments is a plus.

Responsibilities

• Design, develop and maintain Java-based backend applications for equities trading and financial markets.
• Build and enhance high-performance, event-driven trading systems across the full software development lifecycle.
• Collaborate with stakeholders to deliver robust trading and market-facing solutions.

Skills

Java

C++

Event-driven

Multithreading

High-performance

Linux

Networking

JVM internals

GC/JNI

Education

Bachelor's degree in Computer Science or related

Tools

Aeron

Job description

• Design, develop and maintain Java-based backend applications for equities trading and financial markets.
• Build and enhance high-performance, event-driven trading systems across the full software development lifecycle, from requirements through deployment.
• Work closely with business and technology stakeholders to deliver robust solutions for trading and market-facing applications.

Requirements

• Strong experience developing large-scale, complex event-driven / reactive systems, including fault-tolerant and globally distributed applications with high-frequency message and event workflows.
• Strong Java and/or C++ development experience building high-performance systems, with solid knowledge of multithreading, concurrency, networking and data structures & algorithms.
• Good understanding of financial markets and instruments, ideally across Equities, FX, Derivatives, Commodities or Risk.
• Experience working on trading systems, order processing, market data, trade capture or execution-related applications is highly relevant.
• Strong focus on code quality, testing and delivering production-ready solutions within Agile / TDD environments.
• Good knowledge of CPU/GPU architecture, memory management, shared memory / memory-mapped files, TCP/UDP and Linux internals.
• For Java developers, knowledge of JVM internals, GC, JNI, Java Unsafe and JNR-FFI is advantageous.
• Knowledge of Aeron is preferred.
• Degree in Computer Science, Engineering, Physics, Mathematics or a related technical discipline.