Software Engineer - Java, ZaloPay (Trust & Safety Platform)

Trust & Safety team at ZaloPay gather highly motivated team players who dedicate in building ZaloPay as the most trusted e-wallet and best against to bad actors in Vietnam fintech market. By developing and adapting advanced tech-driven prevention mechanisms/solutions while focusing on the user growth and customer experience, we aim to make risk management capability as a core and key differentiation of ZaloPay comparing to other competitors.
We are looking for a savvy, motivated, team-oriented Software Engineer to join our Trust & Safety Platform team. The hire will be responsible for the full life-cycle in software development (e.g., design, implementation, testing, optimization, maintenance) of our Risk Decision Engine and its supportive risk evaluation components. This large-scale & high-availability platform must examinate all users on several steps of user journey to respond with low latency in real-time for the best on-time protection maximization.
The ideal candidate is an experienced solution builder who enjoys optimizing complicated systems or building them from the ground up.
The Engineer will work closely with our risk pillar owners, data engineers, machine learning engineers on new mechanism/solution initiatives and will ensure optimal system architecture is consistent throughout ongoing projects. They must be self-directed and comfortable supporting needs of multiple teams, systems and products.
As a Software Engineer in our team, you will have the opportunity to:

• Work closely with stakeholders including Policy & Operations, Data Science team members to identify any product/functionality gaps, build and collaborate internal products and technology teams to define the necessary development to support solution delivery;
• Design and develop a robust, high-volume (thousand tps), low-latency (under 50ms), high-availability (zero downtime) backend platform with optimal software architecture;
• Participate in complex architectural discussions that involve multiple systems/services;
• Own implementation of modules/services/products, identify their bottlenecks, keep investing effort to maximize its quality and well prepare for scale-out readiness;
• Ensure the performance and quality of applications, moreover, your implementation must be reusable, testable, and efficient;
• Pro-actively respond in identifying and troubleshooting integration or technical issues;
• Work with devops engineers to identify, design, or implement internal software development process enhancement: automating manual processes, optimizing CI/CD & infrastructure for greater scalability;
• Work with technical expert team of Vietnam's leading online payment application;
• Challenge the status when needed.

We are looking for a candidate with 2+ years of experience in a Back-end Software Engineer role, who has attained a Graduate degree in Computer Science, Statistics, Informatics, Information Systems or another quantitative field.

• Preferably, you should also have the following qualifications: Experience in object-oriented programming, multi-threading, web-service programming; Proficiency in the Java programming language;
• Experience in relational databases such as MySQL, Postgres, etc;
• Experience in using caching technologies Redis, Memcache;
• Experience with Git source control and effective branching and release management practices;
• Strong critical thinking skills - you will need to understand our challenges & opportunities and apply them to innovative software solutions;
• Ability to debug, diagnose and resolve complex Java bugs throughout the stack/tracing log;
• Experience in non-relational databases such as MongoDB, Cassandra, etc. is an advantage;
• Be able to work independently and as part of a team;
• A sense of ownership and a passion for delighting customers through innovation and creative solutions to sophisticated problems;
• Good communication skills in a collaborative environment; Understanding and implementation of security and data protection is a plus;
• Demonstrated ability to learn new technologies quickly.

• Degree: Bachelor
• Age: Unlimited
• Working time: Permanent