I’m Andrean, an AI Engineer specializing in large language models (LLMs), retrieval-augmented generation (RAG), semantic search, and vector databases. I design and deploy production-ready AI services using Python, LangChain, and modern API frameworks to enable scalable, reliable AI capabilities. With a strong foundation in data engineering and ETL/ELT, I validate data flows, implement data quality checks, and build data pipelines (SQL Server, SSIS) for enterprise data warehouses. I enjoy collaborating with product, BI, and engineering teams to turn data into actionable insights, and I hold a Master’s degree in Computer Science from BINUS University. I’m fluent in English and Bahasa Indonesia and thrive in cross-functional environments.

Andrean Lie

I’m Andrean, an AI Engineer specializing in large language models (LLMs), retrieval-augmented generation (RAG), semantic search, and vector databases. I design and deploy production-ready AI services using Python, LangChain, and modern API frameworks to enable scalable, reliable AI capabilities. With a strong foundation in data engineering and ETL/ELT, I validate data flows, implement data quality checks, and build data pipelines (SQL Server, SSIS) for enterprise data warehouses. I enjoy collaborating with product, BI, and engineering teams to turn data into actionable insights, and I hold a Master’s degree in Computer Science from BINUS University. I’m fluent in English and Bahasa Indonesia and thrive in cross-functional environments.

Available to hire

I’m Andrean, an AI Engineer specializing in large language models (LLMs), retrieval-augmented generation (RAG), semantic search, and vector databases. I design and deploy production-ready AI services using Python, LangChain, and modern API frameworks to enable scalable, reliable AI capabilities.

With a strong foundation in data engineering and ETL/ELT, I validate data flows, implement data quality checks, and build data pipelines (SQL Server, SSIS) for enterprise data warehouses. I enjoy collaborating with product, BI, and engineering teams to turn data into actionable insights, and I hold a Master’s degree in Computer Science from BINUS University. I’m fluent in English and Bahasa Indonesia and thrive in cross-functional environments.

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Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate

Language

English
Advanced

Work Experience

Data Engineer at Confidential Client (Outsourcing via IDStar)
March 1, 2025 - Present
Support development of a new enterprise Data Warehouse by validating data flow from core systems into Staging, Data Warehouse, and Data Mart layers. Perform detailed data quality checks ensuring correct values, accurate column mapping, and consistency with business rules. Execute ad-hoc SQL queries requested by business and operational teams for investigation and data analysis. Build and maintain ETL workflows for historical data migration using SQL Server and SQL Server Integration Services (SSIS). Work closely with Business, BI, and Engineering teams to resolve data discrepancies and optimize data processing pipelines.
AI Engineer at Teman Data
November 1, 2023 - Present
Developed an AI-powered chatbot using OpenAI GPT and Google Gemini integrated with the LangChain framework. Designed and optimized a vector database PGVector to support semantic search and LLM-driven retrieval. Built FastAPI-based APIs for seamless integration with front-end and back-end applications. Developed interactive dashboards using Power BI based on user requirements. Created and maintained documentation for dashboards, data flows, and LLM integration components.
Data Analyst Intern at PT. Cerdas Digital Nusantara
June 1, 2023 - August 31, 2023
Collected, cleaned, and prepared datasets for analysis and reporting using SQL. Identified insights and communicated findings to support business decisions. Built clear and intuitive dashboards to visualize key business metrics with Tableau.

Education

Master Degree of Computer Science at BINUS University
January 11, 2030 - December 19, 2025
Bachelor Degree of Computer Science at BINUS University
January 11, 2030 - December 19, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Computers & Electronics

Experience Level

Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate

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