Staff Software Engineer

OKBL PTE. LTD.; Singapore; On-site; SGD 100,000 - 150,000; Full time

Job summary

A leading software firm in Singapore is seeking an experienced technical leader with over 7 years of Java experience to optimize high-performance systems. The role involves leading design efforts, solving complex technical challenges, and contributing to the architectural roadmap. Candidates should have a strong background in distributed systems and databases. Proficiency in both English and Mandarin is preferred for collaborative efforts.

Qualifications

• 7+ years of Java experience in high-performance systems.
• Expertise in JVM internals and memory management.
• Strong design skills for distributed systems.

Responsibilities

• Lead technical design and implementation of features.
• Optimize performance bottlenecks in Java applications.
• Contribute to architectural roadmap for core services.

Skills

Java experience

Performance optimization

Distributed systems design

Relational/NoSQL databases

Linux performance tuning

Education

Bachelor's degree in Computer Science or Software Engineering

PhD or Master's degree in a quantitative field

Tools

PostgreSQL

Cassandra

MongoDB

Job description

Responsibilities

• Lead the technical design and implement high-impact features
• Optimize and resolve performance bottlenecks, applying advanced low-latency and high-throughput Java techniques
• Contribute significantly to the architectural roadmap for core platform services, ensuring scalability, reliability, and maintainability
• Own and solve highly complex, ambiguous technical challenges, breaking them down into manageable solutions
• Implement robust monitoring and incident response strategies, and participate in on-call rotations to ensure continuous system reliability
• Partner closely with Stakeholders to translate business requirements into robust, performant technical designs
• Champion and implement best practices in software engineering, including secure coding, automated testing, and CI/CD

Minimum Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or a strong STEM education background)
• 7+ years of Java experience building high-performance, low-latency systems; deep expertise in JVM internals, memory management, and advanced concurrency
• Proven design and implementation skills for distributed systems and strong proficiency with message-oriented middleware
• Expertise in relational/NoSQL databases (PostgreSQL, Cassandra, MongoDB), including data modeling and performance tuning
• Proficiency in Linux performance tuning, understanding of kernel-level optimizations for low-latency applications, and strong grasp of CI/CD, automated testing, and monitoring

Preferred Requirements

• PhD or Master's degree in a highly quantitative field
• Prior experience working on high-frequency trading (HFT) platforms, market-making systems, or algorithmic trading infrastructure
• In-depth knowledge of FIX Protocol and other relevant industry standards
• Experience with hardware-level optimizations or specialized networking for ultra-low latency
• Contributions to open-source projects relevant to high-performance Java or financial technology, or familiarity with cloud-native development best practices
• Proficiency in speaking, reading and writing in both English and Mandarin to collaborate effectively with global and cross-functional team members