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Smilegate Vietnam

Cat Lam Building, 663-665 Dien Bien Phu, TP Hồ Chí Minh

Company Size : 25-99

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Job Summary

  • 25-99
  • Product
  • Việt Nam

Backend Engineer

Smilegate Vietnam

  • Binh Thanh, TP Hồ Chí Minh
  • Negotiable
  •  Full Time
  •  English
  •  Experienced (Non-Manager)
1
1

  •  Posted:30/04/2026

  • Apply now
Backend Engineer
Apply now
Technical Skill: Java , Spring , Python , Algorithm , PostgreSQL , MySQL , OOP , MongoDB , Cassandra , Design Patterns , NoSQL , MS SQL , RabbitMQ , Docker , Redis , Architecture , MS Azure , OpenAI , Apache Kafka , AWS , Kubernetes , Microservices , GCP , RESTful API , gRPC , Phoenix , MLOps , CI/CD , LLM , Vector , LangChain , LangGraph , Llama , AutoGen , Claude , LangSmith , CrewAI , Milvus

Job description

Overview of job

Backend Engineering:

  • Core Systems: Design, develop, and manage high-performance backend services, ensuring stability and scalability in production.
  • Feature Development: Maintain existing systems and proactively develop new functionalities based on business requirements.
  • International Collaboration: Work closely with the Korean tech team and stakeholders to align on architectural solutions and application deployment.
  • Code Quality: Apply standard coding practices, ensuring high unit test coverage and optimized debugging processes.
  • Technology Research: Proactively research new technologies, specifically AI infrastructure solutions, to apply to company projects.

AI Engineering & Orchestration:

  • Agentic Systems: Design and deploy autonomous AI Agents, building complex workflows including planning, multi-step reasoning, and tool-use/function calling.
  • Data & Retrieval: Build and optimize RAG (Retrieval-Augmented Generation) systems using vector databases and embeddings to provide accurate context for LLMs.
  • AIOps: Establish evaluation pipelines to measure AI quality, minimize hallucinations, and control bias.
  • Resource Optimization: Monitor and optimize latency, token throughput, and operational costs for AI systems.
  • AI Integration: Package AI features into stable APIs for seamless integration into the existing Microservices ecosystem.

Health and Wellness

  • Premium health insurance
  • Safe, ethical, secure, and healthy workplace

Financial Well-Being

  • Competitive compensation package
  • Annual bonus program

Personal Development

  • Budget for individual learning & development

Work-life balance

  • 14 days of paid annual leave, increasing by 1 day each year
  • Flexible working timeframe

Workplace experiences

  • Modern working equipment
  • Well-stocked pantry to relax and recharge.
  • Engagement activities (monthly team bonding, yearly company trip…)
  • Sponsored sports clubs
  • Business trip opportunities to the Korean Headquarters

Job Requirement

Mandatory Skills:

  • Experience: 3–6 years in software development (Proficient in Python or Java). Preference for candidates capable of using both (Python for AI/Data and Java for Backend Core).
  • Architecture: Deep understanding of Microservices, RESTful APIs, and gRPC.
  • Data: Experience with SQL (PostgreSQL, MySQL) or NoSQL (MongoDB, Cassandra).
  • Fundamentals: Mastery of data structures, algorithms, OOP, and common design patterns.

AI Specialization:

  • LLM Production: Proven experience implementing features using OpenAI, Claude, or open-source models (Llama, Mistral) in production.
  • Frameworks: Proficiency in AI orchestration libraries: LangChain, LangGraph, CrewAI, or AutoGen.
  • Vector Infrastructure: Experience with Vector Databases such as Milvus, Pinecone, Qdrant, or pgvector.
  • Agentic Skills: Solid understanding of Function Calling, Memory management (Long-term/Short-term), and advanced Prompt Engineering (Chain-of-Thought, ReAct).
  • AI Quality: Knowledge of evaluation frameworks (e.g., Ragas, Arize Phoenix, or LangSmith).

Nice-to-have:

  • Experience with high-traffic systems and asynchronous processing.
  • Proficiency in Docker, Kubernetes, and Cloud platforms (AWS/GCP/Azure).
  • Experience with Redis (Caching) and Message Brokers (Kafka or RabbitMQ).
  • Understanding of CI/CD for AI (MLOps).

Languages

    • English

    • Speaking: Intermediate - Reading: Intermediate - Writing: Intermediate

Technical Skill

  • Java
  • Spring
  • Python
  • Algorithm
  • PostgreSQL
  • MySQL
  • OOP
  • MongoDB
  • Cassandra
  • Design Patterns
  • NoSQL
  • MS SQL
  • RabbitMQ
  • Docker
  • Redis
  • Architecture
  • MS Azure
  • OpenAI
  • Apache Kafka
  • AWS
  • Kubernetes
  • Microservices
  • GCP
  • RESTful API
  • gRPC
  • Phoenix
  • MLOps
  • CI/CD
  • LLM
  • Vector
  • LangChain
  • LangGraph
  • Llama
  • AutoGen
  • Claude
  • LangSmith
  • CrewAI
  • Milvus

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BUSINESS PROFILE

Smilegate is a Mega Value Innovator in Entertainment.

We develop global, top performance digital game distribution platform.

Smilegate has continuously strived for happier lives and a more hopeful society by developing and providing quality games and content. Smilegate operates businesses in areas of game development and services, investments, and social contributions; develops and discovers various games and cultural content; and provides them as global services by increasing their value. The representative game is CROSSFIRE that world’s no.1 online FPS game with more than 670 million players from 80 countries, has surprising records such as having over 8 million concurrent users, has reached $10.5 billion sales revenue since its global launch.

Smilegate Vietnam

Entering the Vietnam market from 2023, Smilegate Vietnam's mission is to provide stable development & operation of the Smilegate platform and services, expanding beyond the development center to the region and expanding into an Asian hub.

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Smilegate Vietnam

  • Binh Thanh, TP Hồ Chí Minh
  • Negotiable
  •  Full Time
  •  Experienced (Non-Manager)
1
Posted: 01/04/2026
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