Staff Software Engineer, Trading Service

P2P; Singapore; On-site; SGD 100,000 - 130,000; Full time

Job summary

A leading crypto exchange in Singapore is looking for a Staff Software Engineer to enhance their ultra-low latency trading platform. The ideal candidate will have over 7 years of Java experience and expertise in distributed systems. Responsibilities include leading technical designs, optimizing performance, and contributing to architectural roadmaps. The company offers a competitive compensation package and various employee benefits.

Benefits

Competitive total compensation package

L&D programs and education subsidy

Wellness and meal allowances

Comprehensive healthcare schemes

Qualifications

• 7+ years of Java experience in low-latency systems.
• Strong understanding of JVM internals and concurrency.
• Experience in relational/NoSQL databases, including performance tuning.

Responsibilities

• Lead the technical design for trading components.
• Optimize performance across trading architecture.
• Contribute to the architectural roadmap for core services.

Skills

Java experience

Distributed systems design

Performance tuning

Education

Bachelor's degree in Computer Science or related field

Tools

PostgreSQL

Cassandra

MongoDB

Job description

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

About OKX

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About the Opportunity

The Trading Service team is the backbone of our exchange's industry-leading trading product, which is utilized by millions of users. We are responsible for the core order and position management systems, enabling a full spectrum of trading products, including manual, automatic, and social trading, as well as brokerage services. Our platform supports diverse financial instruments such as spot, margin, futures, options, and perpetuals.

Join our high-performing Trading Service team as a Staff Software Engineer, a pivotal individual contributor role focused on building and enhancing our cutting‑edge, ultra‑low latency trading platform. With 7‑8 years of experience, you deliver exceptional solutions, mentor others, and influence significant technical decisions. You'll tackle some of the most complex challenges in distributed systems, high‑performance computing, and financial technology, ensuring our platform remains industry‑leading for millions of users.

What You’ll Be Doing

• Lead the technical design and implement high‑impact features for critical trading components
• Optimize and resolve performance bottlenecks across the trading architecture, 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

What We Look For In You

• 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

Nice to Haves

• 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

Perks & Benefits

• Competitive total compensation package
• L&D programs and Education subsidy for employees' growth and development
• Various team building programs and company events
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants
• More that we love to tell you along the process!