Senior C++ Engineers, APAC, Global HFT

IO TECH SOLUTIONS LIMITED; Hong Kong; On-site; HKD 1,000,000 - 1,500,000; Full time

Job summary

IO TECH SOLUTIONS LIMITED is seeking elite C++ Software Engineers for Market Data & Execution in APAC, based in Hong Kong or Shanghai. You will own greenfield market data ingestion and ultra-low-latency execution platforms in direct collaboration with trading desks.

Expect a high-agency role with exposure to Tier 1/2 prop shops and top HFT environments, focusing on performance, protocol optimization, and exchange connectivity to HKEX, SGX, JPX, and more.

Qualifications

• 6+ years of hands-on C++ development at Tier 1/2 prop shops or top HFT firms.
• Execution trading experience in APAC: single stocks, ETFs or futures.
• Willing to relocate to APAC; HK or Shanghai preferred.
• Strong ownership, high-agency mindset, and desk-facing collaboration.

Responsibilities

• Greenfield development of low-latency market data feed handlers and order gateways.
• APAC market connectivity to HKEX, SGX, JPX, ASX, etc.
• Collaborate with quants and traders to translate requirements into fast tech solutions.
• Performance tuning with modern C++17/20, lock-free structures, kernel bypass (DPDK/VMA).
• Production ownership and monitoring in a live trading environment with tight deadlines.

Skills

C++ development

Low-latency

Market data ingestion

APAC markets

Desk collaboration

Tools

DPDK

VMA

NUMA awareness

Job description

C++ Software Engineer (Market Data & Execution) – APAC

Location: Hong Kong / Shanghai (Relocation support available)
Type: Full-Time
Compensation: Highly competitive (Base + Performance)

About the Client

Our client is a premier global proprietary trading firm and active market maker, operating at the highest tier of high-frequency and systematic trading. They are currently making a massive, greenfield investment to scale their APAC trading architecture.

This is a highly confidential search. Client details will be disclosed to qualified candidates upon initial screening.

The Opportunity

We are seeking elite, high-agency C++ engineers to take direct ownership of market data ingestion and ultra-low-latency execution platforms. This is not a maintenance or back-office role. You will work directly alongside the trading desks to build systems that drive PnL.

We are looking for two specific profiles:

1. The Market Specialist: An engineer who doesn't just build connectivity for maintenance, but deeply owns, optimizes, and exploits quirky exchange features and protocol micro-syntax for low-latency advantages.
2. The Front Office Generalist: A high-agency engineer who thrives sitting directly on the trading desk, collaborating with Tier 1/Tier 2 execution traders to drive business outcomes.

What You’ll Do

• Greenfield Development: Design and build next-generation low-latency market data feed handlers and order execution gateways from scratch.
• APAC Market Connectivity: Manage high-performance connectivity for APAC exchanges (HKEX, SGX, JPX, ASX, etc.), including protocol parsing, multicast sequencing, and order book reconstruction.
• Direct Desk Collaboration: Work shoulder-to-shoulder with quants and traders to understand market microstructure and translate business needs into rapid technical solutions.
• Performance Tuning: Push the limits of modern C++ (C++17/20), using lock-free data structures, kernel bypass networking (VMA/DPDK), NUMA awareness, and CPU pinning to eliminate microseconds of latency.
• Production Ownership: Monitor, troubleshoot, and optimize systems in a live production environment under strict exchange deadlines.

The Hard Requirements (Strict Filters)

To be considered, you must meet the following criteria:

• Firm Type: You must currently (or recently) work at a Tier 1/2 Prop Shop, Top HFT firm, or a smaller proprietary shop with active high-frequency/execution trading.
  • Note: We cannot consider candidates from Investment Banks, Platform Providers, Commercial Vendors, or pure Mid-Frequency (MFT) / Back-Office HFT roles.
• Experience: 6 + years of hands‑on C++ development. (We are not considering junior candidates <6 years, nor overly senior/legacy candidates who are removed from day-to-day hands‑on coding).
• Asset Class: Execution trading experience in APAC Single Stocks, ETFs, or Futures. Alternatively, we will consider candidates with execution experience across 2 asset classes (e.g., Crypto + FI, FX + FI) who are eager to adapt.
• Location: Open to Hong Kong or Shanghai. We are also fully open to candidates in US/EU markets with high ownership and desk‑facing experience who are willing to relocate to APAC.

Why This Role?

• True Greenfield: Join at an inflection point. Build rapid, build‑to‑market systems without legacy friction.
• Broad Scope: No rigid silos. Expand your scope from pure connectivity into pricing, strategies, and execution.
• Flat Culture: Led by an active, hands‑on IC manager. A collaborative, highly technical desk culture where high agency is rewarded.