Senior/Staff Java Engineer, Fraud Risk

About The Opportunity

We’re looking for a Java Engineer to join our Fraud Risk team!

This role will provide an early and significant impact on the engineering team. You will be expected to be responsible for such areas as implementation and support of backend microservices, working closely with the frontend and cross-functional teams to coordinate complex deliverables, do research and provide meaningful feedback about any decision being made within the team. Following are some domains you will have opportunities to work with:

• Real-time fraudulent monitoring with highly configurable rules
• Event data stream ingestion which supports 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

What You’ll Be Doing

• 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
• Design and develop 24/7 high scale APIs and distributed system, the tech stack will be on Alicloud/AWS
• Strong CS fundamentals, solid knowledge of OOP/OOD, GoF design patterns
• 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 implementation 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 service life cycle, influence every step of the way

What We Look For In You

• Min. 5+ years of experience in Software Development
• Possess a solid foundation in Java, with a deep understanding of JVM configuration optimisation strategies and tuning, IO, multi-threading, concurrency frameworks, common data structures, algorithms, and design patterns
• Good programming specifications and rich work experience
• Familiar with mainstream open-source application frameworks, such as SpringBoot, SpringMVC, Mybatis, SpringCloud, etc.
• Experience with MySQL, Oracle, and other databases, with an in-depth understanding of things, locks, indexes, database and SQL optimisation, design methods such as sub-database sub-table, leader/follower synchronization
• Familiar with common middleware, such as Kakfa, ELK, Hologres, etc.
• Possess a deep understanding of the design principles of common caching systems, such as Memcached, Redis, etc. and be able to accurately choose caching solutions
• Have a good understanding of distributed system principles, including CAP, consistency, idempotent operation, etc.
• 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
• Clear logic, quick thinking and good communication skills
• Bilingual is highly preferred (Mandarin and English) as the team will be working with stakeholders in different regions

Nice-To-Have

• 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 working with teams across different time zones

Perks & Benefits

Competitive total compensation package