Middle Back End Developer

6 days ago

Ho Chi Minh City, Ho Chi Minh, Vietnam Reliccell Full time ₫1,500,000 - ₫6,000,000 per year
Job description

We're looking for an experienced Back End Developer to be responsible for designing system architecture, setting codebase standards, and optimizing performance for real-time features. Your main responsibilities will include:

Functional:

  • Design, implement, and maintain groups responsible for APIs, real-time logic processing, and player interaction systems.
  • Actively participate in and lead the development of backend systems using Java, ensuring performance, security, and scalability.
  • Establish codebase standards: folder structure, naming conventions, and processing flows.
  • Collaborate closely with game designers and client developers to ensure smooth integration of backend systems with the game client.
  • Design Microservices architecture for scalability and maintainability across game lines or features.
  • Build and implement Unit Tests, validate business logic, and standardize event flows (results, player states, system interactions).
  • Optimize performance for critical operations such as matchmaking, win-rate systems, jackpot, and reward logic.
  • Ensure game backend security: anti-cheat, session validation, and prevention of fake requests/spam.
  • Implement CI/CD, auto-scaling, logging, and monitoring systems for the game backend.

Organizational strategy:

  • Abide by and uphold all Company core values, policies and procedures. Help make sure that the Organization's philosophy, mission and vision are pertinent and practiced throughout the organization.
  • Design, support and oversee cross-functional teams throughout the Organization.
  • Analyze requirements from the Game Design Document (GDD) and propose suitable architecture.
  • Actively handle production incidents, trace logs, identify root causes, and deploy quick solutions.
  • Other tasks and responsibilities assigned to the Employee by the Company which may be adjusted from time to time.
Your skills and experience
  • Bachelor's degree from an accredited university in Information Technology, Computer Science, or related major.
  • Minimum 3 years of experience in backend system development with at least 3 backend languages (Java, , Go, , C#, etc.), especially with Java, , PHP.
  • Proficient in Kafka, RabbitMQ
  • Experience in building real-time systems with , WebSocket, Redis pub/sub, event-driven architecture.
  • Experience with databases (MongoDB, MariaDB, Redis) for game state management.
  • Experience with Spring Booth, Lavarel is a plus.
  • Familiarity with Cocos Creator networking integration and multiplayer game flow.
  • Experience with large-scale real-time game systems is an advantage.
  • Good English communication skills (TOEIC 500+ or equivalent).
  • Familiar with project management methodologies (Agile, Scrum, Waterfall, etc.).
  • Proficient in project management tools (Jira, Trello, Asana, etc.).
  • Strong leadership, organizational, and problem-solving skills.
  • Great communication and team-building abilities.
  • Flexible and able to adapt to changes quickly.
Why you'll love working here
  • Salary & Bonus: Annual base salary review based on performance. Attractive 13th-month salary and year-end performance bonus, depending on company results and individual achievements.
  • Allowances: Lunch, parking, phone, and business trip allowances. Monthly Happy Hours, plus free snacks and drinks at the office.
  • Collective Benefits: Monthly Happy Hours, annual company trip, holiday gifts and bonuses, and support for special personal events (childbirth, wedding, hospitalization, bereavement).
  • Healthcare: Extended healthcare insurance in addition to 100% salary coverage under mandatory social insurance.

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