(Sr.) Quant Developer - Core Trading Systems

Btse; Hong Kong; On-site; HKD 800,000 - 1,200,000; Full time

Job summary

BTSE seeks engineers to design and build a high-performance crypto trading platform from the ground up. Work on latency-critical systems with real-world impact, delivering real-time market data and exchange connectivity. You will influence trading performance, ownership, and speed in a fast-moving fintech environment.

The role emphasizes hands-on development in Java or C++, with Linux performance tuning and observability, to optimize latency and throughput across the stack.

Qualifications

• Experience building or operating low latency systems in production.
• Strong understanding of concurrency and threading models.
• Memory management and cache efficiency.
• Networking fundamentals with latency trade-offs.
• Experience with high-performance messaging frameworks (Aeron/Chronicle Queue) or similar.

Responsibilities

• Design and build low latency, event-driven trading systems.
• Develop real-time market data pipelines and exchange connectivity.
• Build order execution systems and internal messaging infrastructure.
• Design and integrate trading strategies into production to influence PnL.

Skills

Java

C++

Low latency

Concurrency

Memory management

Networking basics

Tools

Aeron

Chronicle Queue

SBE (Simple Binary Encoding)

Job description

About BTSE

BTSE Group is a global leader in fintech and blockchain technology, anchored by three core business pillars: Exchange, Payments, and Infrastructure Development. Serving over 100 corporate clients worldwide, we provide white-label exchange and payment solutions. Our offerings encompass everything from exchange infrastructure hosting and development to custody, wallets, payments, blockchain integration, trading, and more. We are looking for talented professionals in marketing, operations, customer support, and other departments. The roles offered may be on-site, remote, or hybrid, in collaboration with our local partner.

About the opportunity

• Build a modern, high-performance crypto trading platform from the ground up
• Work on latency-critical systems with real-world impact
• Direct influence on trading performance and PnL
• High ownership and accelerated responsibility compared to traditional finance environments
• Collaborative and fast-moving team culture

• Design and build low latency, event-driven trading systems
• Develop real-time market data pipelines and exchange connectivity
• Build order execution systems and internal messaging infrastructure
• Design and integrate trading strategies into production, contributing directly to PnL
• Optimize performance across the full stack (application → OS → network)

Low Latency Systems Experience

• Proven experience building or operating low latency systems in production
• Strong understanding of:
  • concurrency and threading models
  • memory management and cache efficiency
  • networking fundamentals (TCP/UDP, latency trade-offs)
• Experience with high-performance messaging frameworks such as Aeron, Chronicle Queue, or similar or experience building custom event-driven systems with comparable performance characteristics

Systems & Performance Engineering

• Strong Java (preferred) or C++ in performance-critical environments
• Experience optimizing systems for latency and throughput under real-time constraints
• Familiarity with Linux performance tuning and observability

Trading Systems Experience

• Hands-on experience working on production trading or exchange systems, such as:
  • market data handling
  • execution systems
  • OMS / risk systems
• Exposure to Central Risk Book (CRB) concepts is a strong plus
• Understanding of Sequencer architecture is a strong plus

• Experience with binary protocols (e.g. Simple Binary Encoding)
• Experience in crypto markets, HFT, or market making environments
• Exposure to cross-exchange trading or arbitrage systems