Hồ Chí Minh
Full-time
What you will do
Design and implement high-performance, scalable, low-latency backend services using Java;
Develop and maintain OAuth, Open API on the Zalo Platforms;
Develop operational and administration tools to support product management and system operations;
Write clean, maintainable, and well-documented code;
Collaborate closely with the Product team to define, customize, and deliver user-facing features;
Working cross-team in implemented projects;
Optimize system performance, handle high concurrency, and ensure platform reliability.
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What you will need
From 1+ year of experience in backend development (Java);
Experience working with MySQL, and exposure to Redis, Elastic Search;
Good understanding of data structures and algorithms;
Experience with system optimization, scalability, caching, and distributed systems is a plus;
Have knowledge of security (Cross-site scripting (XSS), Data injection attacks, JavaScript code injection, Cross-Site Request Forgery (CSRF), Content Security Policy (CSP)) is a plus;
Understanding of RESTful API design and best practices;
Familiarity with frontend (JavaScript/ReactJS) is a plus;
Strong problem-solving and analytical skills.