Mid-Senior Front Office Developer

IO TECH SOLUTIONS LIMITED; Hong Kong; On-site; HKD 600,000 - 1,200,000; Full time

Job summary

IO TECH SOLUTIONS LIMITED is seeking mid-senior Front Office Developers to design, implement, and optimize high-performance backend systems for trading activities. You will work on low-latency architectures, contribute to system design, and own critical components within a fast-paced environment.

The role requires strong Rust/C++ skills, a solid CS foundation, and a history of delivering scalable, reliable software in trading or similar domains.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related discipline.
• 4–8 years of software engineering experience in a fast-paced, high-performance environment.
• Strong programming experience in Rust and/or C++.
• Hands-on experience building low-latency or high-performance systems.
• Strong understanding of system design, software architecture, concurrency, and performance optimization.
• Demonstrated ownership of key system components or technical initiatives.
• Excellent problem-solving and communication skills.
• Stable career history with consistent technical growth.

Responsibilities

• Design, develop, and maintain high-performance backend applications using Rust and/or C++.
• Build scalable, reliable, and low-latency systems that support front office trading activities.
• Participate in system architecture, technical design, and component ownership throughout the software development lifecycle.
• Optimize application performance, latency, and resource utilization.
• Collaborate closely with traders, quantitative researchers, and engineering teams to deliver business-critical solutions.
• Troubleshoot production issues and continuously improve system stability and reliability.
• Contribute to code reviews, technical discussions, and engineering best practices.

Skills

Rust

C++

Education

Bachelor's degree

Tools

Linux

Job description

Mid-Senior Front Office Developers to build and enhance high-performance trading systems. This role is ideal for engineers who enjoy solving complex technical challenges, designing scalable systems, and working in a fast-paced, low-latency environment.

Responsibilities

• Design, develop, and maintain high-performance backend applications using Rust and/or C++.
• Build scalable, reliable, and low-latency systems that support front office trading activities.
• Participate in system architecture, technical design, and component ownership throughout the software development lifecycle.
• Optimize application performance, latency, and resource utilization.
• Collaborate closely with traders, quantitative researchers, and engineering teams to deliver business-critical solutions.
• Troubleshoot production issues and continuously improve system stability and reliability.
• Contribute to code reviews, technical discussions, and engineering best practices.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related discipline.
• 4–8 years of software engineering experience in a fast-paced, high-performance environment.
• Strong programming experience in Rust and/or C++.
• Hands-on experience building low-latency or high-performance systems.
• Strong understanding of system design, software architecture, concurrency, and performance optimization.
• Demonstrated ownership of key system components or technical initiatives.
• Excellent problem-solving and communication skills.
• Stable career history with consistent technical growth.

Nice to Have

• Experience in electronic trading, capital markets, fintech, or financial services.
• Exposure to C or Zig.
• Familiarity with Linux, multithreading, networking, and distributed systems.