Tuyển Backend Developer thu nhập Thoả thuận Toàn thời gian tại Hà Nội - VĂN PHÒNG KOTRA, ĐẠI SỨ QUÁN HÀN QUỐC

We are seeking an experienced AI Backend Developer with over 5 years of experience in designing, implementing, and optimizing AI-driven backend systems. The ideal candidate will have deep expertise in LangChain, RAG pipeline implementation, and search technologies (OpenSearch/Elasticsearch), along with experience in chatbot/playground development. Knowledge of AI agents, tools, and RAG optimization is a plus
Design and implement LangChain-based workflows for AI applications.
Develop and optimize Retrieval-Augmented Generation (RAG) pipelines.
Integrate OpenSearch/Elasticsearch for semantic/hybrid search.
Build and maintain chatbot/playground environments (e.g., Streamlit, Gradio, custom UIs).
Fine-tune vector search, hybrid search, and relevance ranking.
Optimize indexing/query performance for low-latency AI responses.
Work with embeddings (OpenAI, Hugging Face, or custom models).
Develop scalable APIs (FastAPI, Flask, or similar).
Collaborate on frontend-backend integration (Ember.js or other JavaScript frameworks).
Use build tools (Ant, Maven, Gradle) for deployment automation.
Ensure CI/CD pipelines are efficient and reliable.
Work in Agile/Scrum environments, participating in sprints, standups, and retrospectives.
Collaborate with frontend engineers, data scientists, and product teams.

5+ years of backend development (Python preferred).
Strong experience with LangChain for LLM orchestration.
Hands-on experience with OpenSearch/Elasticsearch (indexing, querying, optimization).
Proven track record in RAG pipeline implementation.
Experience in developing chatbots or AI playgrounds (e.g., Gradio, Streamlit, custom UIs).
Familiarity with LLM APIs (OpenAI, Anthropic, Mistral, etc.).
Knowledge of AI agents & tools (AutoGPT, BabyAGI, multi-agent systems).
Experience in RAG optimization & evaluation (metrics like precision, answer relevance).
Familiarity with vector databases (Pinecone, Weaviate, Milvus).
Understanding of NLP techniques (text processing, embeddings, fine-tuning).
Experience with both external and embedded databases
Understanding fundamental design principles behind a scalable application
Creating database schemas that represent and support business processes
Implementing automated testing platforms and unit tests
Proficient understanding of code versioning tools, such as Git
Ability to clearly communicate with both technical and non-technical team members
Other Requirements:
Experience with Agile Scrum
Experience with Ember or other JavaScript

What differentiates MEGAZONE from other software companies in Vietnam:
The attractive salary (Negotiation)
2-month probation period with 100% salary.
Full salary insurance coverage after the probation period.
Participation in the PVI health insurance package, and annual health check-ups.
13th-month salary, birthday bonus, New Year bonus, Mid-Autumn Festival gifts, March 8th and October 20th gifts, etc.
Performance evaluation and regular salary increases.
Welfare for personal events, childbirth, and other benefits as per labor regulations and company welfare policies.
Dynamic and youthful work environment conducive to personal growth and development

Ứng viên nộp hồ sơ trực tuyến bằng cách bấm Ứng tuyển ngay dưới đây.