Who We Are

OKX is revolutionising world systems through our cutting-edge digital asset exchange, Web3 portal and blockchain ecosystems. We are deeply committed to shaping a fairer, more transparent and accessible society through blockchain technology and to date, we have 50+ million users, 3000+ employees and 180+ countries believing in the same vision as us. We are safe and reliable, backed by our Proof of Reserves. As strong supporters of the Arts and Sports, we are proud partners of @McLarenF1 @ManCity @Tribeca.

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About the Opportunity

We’re looking for a Senior Software Engineer to join our team. This role will provide an early and significant impact on the engineering team in the US. You will be expected to be responsible for such areas as implementation and support of backend microservices, working closely with the front end and cross-functional teams to coordinate complex deliverables, do research and provide meaningful feedback about any decision being made within the team.

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Following are some domains you will have opportunities to work with:

• Real time fraudulent monitoring with highly configurable rules 
• Machine learning models as micro services 
• Event data stream ingestion which support near real-time fraud rules setup 
• Advanced a/b testing capabilities for our customers so they can leverage greedy algorithms and fight fraud 
• Powerful tools and innovative data science driven solutions for business user 
• Full feature risk ecosystem 

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What You’ll Be Doing 

• Design and develop 24/7 high scale APIs and distributed system, the tech stack will be on AWS. Java would be the language for the existing code base. Java Spring Boot will be the framework
• Strong CS fundamentals, solid knowledge of OOP/OOD, GoF design patterns 
• Proficiency with Java stack and JVM (memory/performance tuning, GC) 
• Proficiency with developing Web Services, SOA, REST APIs, Message Queue, Distributed/Scalable Architecture 
• Proficiency in Spring Framework (Spring Boot), Hibernate (or similar ORM), Maven, Git
• Write unit tests, integration tests and CI/CD scripts
• Own, monitor and improve our services in production
• Development and testing of high quality product features spanning multiple product domains
• Work with engineering managers, architects, engineers & QA to develop innovative solutions that meet market needs w.r.t functionality, performance, reliability, realistic implementations schedules and adherence to development goals and principles
• Be a technical leader; research and promote new technologies and tools
• Face technical challenges - performance, fault-tolerance, security and live production issues
• Be involved throughout our services life cycle, influence every step of the way
• Be part of an amazing fast-paced team

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What We Look For In You 

• At least 5+ years of experience in Software Development
• Experienced Java developer, other language experience (C++, Python, Go, Rust) can be a plus
• Familiar with different databases, such as PostgreSQL and DynamoDB
• Experienced in distributed systems and microservices
• Work well in a team environment and be able to effectively drive cross-team solutions that have complex dependencies and requirements
• Results oriented, self-learner, problem solver with 'can do' attitude

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Nice to Haves

• Experience with Java Spring Boot is preferred
• You either are already or are eager to become an expert in the blockchain and cryptocurrency landscape and will understand how speculators, traders, digital asset exchanges, blockchain money services businesses and financial institutions operate
• Experience working in a disruptive technology, successfully launching products, ideally, within FinTech, eCommerce, SaaS, AdTech, or Digital Wallet business experience
• A history (and preference) of being both strategic, analytical and execution-oriented
• Familiarity with product management processes and tools
• Experience with machine learning
• Experience working with teams across offices and time zones
• Fluent in Mandarin and English

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Perks & Benefits 

• Competitive total compensation package
• L&D programs and Education subsidy for employees' growth and development
• Various team building programs and company events

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OKX Statement

The salary range for this position is $196,000 to $300,000. The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site.

OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider employment-qualified applicants with arrest and conviction records.