Staff Software Engineer

Staff Software Engineer - Trading Service
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, mentors others, and influences 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 totranslate 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
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
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