C++ Software Engineer

IO Tech Solutions Limited; Hong Kong; On-site; HKD 600,000 - 1,200,000; Full time

Job summary

IO Tech Solutions Limited, a buy-side client, seeks a skilled C++ Software Engineer to join its Hong Kong team to design, implement and support production-grade market access components that connect trading venues, liquidity providers and internal consumers.

You will own architecture for connectivity, order routing and market-data ingestion, while collaborating with infrastructure, QA and security to deliver robust, low-latency systems.

Qualifications

• 4+ years of experience building large-scale market systems or low-latency infrastructure.
• Strong C++ skills in financial services.
• Knowledge of networking, IPC, market-data feeds, order routing.
• Experience with databases, message buses, telemetry, and automated testing/CI pipelines.
• Production support and incident management experience.

Responsibilities

• Design and develop high-performance, low-latency market access and trading components in C++.
• Own architecture and system analysis for connectivity, order flow, gateway and market-data ingestion services; produce design docs, functional specs and test plans.
• Contribute across the software lifecycle: coding, code review, deployment and production support/incident response.
• Collaborate with business stakeholders to refine requirements and translate them into robust, production-ready designs.
• Identify and mitigate technical and operational risks, enforce security and compliance best practices.

Skills

C++

Low-latency systems

Networking

Market data feeds

CI pipelines

Tools

Databases

Message buses

CI pipelines

Job description

My client, a top buy-side, is seeking a skilled C++ SoftwareEngineer to join the Hong Kong team. You'll design, implement and support production-grade components that connect trading venues, liquidity providers and internal consumers while partnering closely with infrastructure, QA and security teams.

Key Responsibilities:

• Design and develop high-performance, low-latency market access and trading components in C++
• Own architecture and system analysis for connectivity, order flow, gateway and market-data ingestion services; produce clear design docs, functional specs and test plans.
• Contribute across the software lifecycle: coding, code review, deployment and production support/incident response.
• Collaborate with business stakeholders to refine requirements and translate them into robust, production-ready designs.
• Identify and mitigate technical and operational risks, enforce security and compliance best practices.

What You'll Bring:

• 4+ years relevant experience building large-scale, mission‑critical market systems or low-latency financial infrastructure.
• Strong C++ skills within the financal services sector.
• Deep understanding of networking, IPC, multicast/unicast market-data feeds, order routing, and performance tuning.
• Solid experience with databases, message buses, real‑time telemetry, and automated testing/CI pipelines.
• Practical knowledge of production support and incident management.

C++Software