Senior Java Backend Engineer (DEX) at Hyphen Connect Limited

, Hong Kong, China -

Full Time

Start Date

Immediate

Expiry Date

27 May, 26

Salary

0.0

Posted On

26 Feb, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Java, Backend, DeFi, DEX, Multi-threading, Concurrency, JVM Tuning, Matching Engines, Order Books, Risk Management, Kafka, MySQL, Redis, MongoDB, Docker, Kubernetes

Industry

Staffing and Recruiting

Description

We are seeking a seasoned Backend Engineer with deep expertise in decentralized finance (DeFi) to lead the architectural design and development of our client's high-performance DEX platform. You will be responsible for building the core components of a world-class trading environment, focusing on ultra-low latency, high concurrency, and uncompromising security. Key Responsibilities Architectural Leadership: Design and develop the core server-side architecture for a Decentralized Exchange (DEX). Core Module Engineering: Lead the implementation of critical modules, including matching engines, order books, market data broadcasting, risk management, and clearing/settlement systems. Infrastructure & Connectivity: Develop and maintain high-performance trading gateways (REST/WebSocket), market data feeds, and K-line services. Performance Optimization: Ensure the stability and performance of high-concurrency, low-latency trading systems through rigorous JVM tuning and system-level optimizations. Resilience & Security: Build foundational capabilities for data persistence, comprehensive logging, automated backups, and robust disaster recovery protocols. Cross-Functional Collaboration: Partner closely with Smart Contract and Frontend teams to ensure seamless end-to-end integration across the entire trading lifecycle. Required Qualifications & Skills Educational Background: Bachelor’s degree or higher in Computer Science, Software Engineering, or a related technical field. Java Expertise: 8+ years of professional Java development experience, with mastery of multi-threading, concurrency models, and JVM performance tuning. DEX Domain Knowledge: 3+ years of direct experience in DEX/Exchange server-side development, with a deep understanding of matching, clearing, and risk control workflows. High-Performance Frameworks: Proven experience with LMAX Disruptor, Chronicle, or similar high-performance frameworks; familiarity with Exchange-core architectures is essential. Data Management: Expertise in MySQL, Redis, and MongoDB, including advanced database design, index optimization, and distributed transaction management. System Reliability: Deep understanding of multi-active database deployments and disaster recovery; ability to lead team-wide emergency drills. Messaging & Streaming: Proficiency in Kafka (consumer groups, partitioning, persistence) and real-time data processing. Cloud & DevOps: Hands-on experience with Docker and Kubernetes (Deployment, Service, Ingress, Monitoring); proficiency with AWS or Alibaba Cloud ecosystems (EC2/ECS, RDS, OSS). Preferred Attributes (Bonus) Experience with EVM-based on-chain settlement, Oracles, and off-chain data integration. Familiarity with modern observability stacks, including Prometheus, Grafana, and ELK. Polyglot capabilities: Ability to develop stable auxiliary services in Golang or Node.js for on-chain data retrieval and analysis.

Responsibilities

The role involves leading the architectural design and development of a high-performance Decentralized Exchange (DEX) platform, focusing on building core components like matching engines, order books, and risk management systems. Key duties include ensuring ultra-low latency, high concurrency, system resilience, and seamless integration with smart contract and frontend teams.