Market Making, Quantitative Developer

About Duotech

Duotech is a Singapore-based technology company specialising in the consulting, design and engineering of customised software solutions and mobile applications. We help organisations drive innovation, improve operational efficiency and strengthen their competitive advantage through tailored, scalable technology solutions.Our team of experienced software experts works closely with clients to understand their unique business challenges and deliver streamlined, high-impact solutions that enhance productivity and support sustainable growth.

Role Overview

You will support the senior systems architect and traders in building, optimizing, and maintaining the firm's real-time trading infrastructure. You will work on execution, quoting, risk systems, market-data handlers, and latency-critical components across multiple crypto derivatives exchanges. This role requires strong engineering fundamentals and hands-on experience with high-performance, event-driven systems

Key Responsibilities:

• Implement latency-sensitive components of the market-making engine (market-data handlers, order routers, quoting logic)
• Optimize latency, jitter, and throughput across real-time data pipelines and execution paths
• Build and maintain exchange connectors (WebSocket, REST, FIX-like variants) with robustness and micro-latency considerations
• Profile, debug, and optimize system performance in cloud-hosted environments
• Develop internal monitoring tools for latency analytics (e.g., orders, market-data delays, queue states)
• Tune garbage-collection behavior, CPU pinning, async event loops, and other performance parameters
• Assist in creating automated stress-testing and load-testing frameworks to simulate exchange conditions
• Work closely with traders on strategy parameters, safeguards, and scenario testing

Requirements:

• 8 years building low-latency trading systems
• Skilled in C++ and Python
• Experience with market-data handlers, quoting engines, and order books
• Strong in latency optimization, performance tuning, and low-latency techniques
• Familiar with exchange microstructure, Pub/Sub frameworks, and Docker deployments
• Prior experience in crypto and traditional market-making stacks