AI Leasing Assistant
Lippo Malls Indonesia
A LangGraph multi-agent system that answers leasing clients around the clock and generates reports for high-value leads.
Credentials
Certifications in AI & machine learning development and deployment.
- TensorFlow Developer Certificate · TensorFlow
- Machine Learning DevOps Engineer Nanodegree · Udacity
- TensorFlow: Data and Deployment Specialization · Coursera
- Bangkit 2021, Machine Learning Specialization · Google, GoTo & Traveloka
Experience
Turning machine learning and generative AI into measurable business results
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Jul 2026 – PresentCurrent Role
Senior AI Developer
PT ESSA Industries Indonesia Tbk · first AI hire in the company
- Spearheaded ESSA's AI adoption as the company's first AI hire, establishing an AI Development Framework that gives the company a repeatable path to build and deliver AI solutions successfully.
- Designed the company-wide AI implementation roadmap with clearly gated phases from PoC to production, aligning every AI initiative with business priorities.
- Authored technical guidelines that standardize all AI development at ESSA, covering architecture, tooling, evaluation, and deployment.
- Leading multi-department AI PoCs across Legal, Human Capital, Subsurface Analysis, Plant Operations, and Finance to accelerate high-value use case discovery and validate production readiness.
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Oct 2025 – Jul 2026
AI Learning Engineer
PT Lippo Malls Indonesia
- Engineered an AI-powered HVAC optimization system, cutting operational costs by more than 30% by managing energy consumption with predictive ML models on real-time IoT sensor data.
- Designed and deployed an AI Leasing Assistant, increasing leasing team productivity by focusing their effort on high-potential customers, with a LangGraph multi-agent system that responds to clients 24/7 and generates lead reports.
- Built an agentic RAG chatbot grounded in internal SOPs and regulations, improving employee information retrieval accuracy with LangGraph, Qdrant, Redis, and LLM-as-a-Judge on on-premise vLLM.
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Sep 2023 – Sep 2025
Data & Machine Learning Engineer
PT Pupuk Indonesia (Persero)
- Developed an AI-based predictive maintenance system that reduced unscheduled shutdowns from 15 to 0 within 8 months, preventing potential losses of up to IDR 24B per incident and winning Best Innovation at the Pupuk Indonesia Innovation Awards 2025.
- Built an AI-based profit and loss projection for Pupuk Indonesia Group, cutting projection time for all subsidiaries from 7 working days to 15 minutes with over 95% accuracy.
- Engineered and managed an enterprise-grade data platform using Snowflake, establishing a single source of truth to unify data operations across all Pupuk Indonesia Group business lines.
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Oct 2021 – Sep 2023
Machine Learning Curriculum Developer
Dicoding Indonesia
- Designed and maintained data science and machine learning courses for thousands of learners, using NLP sentiment analysis on student feedback to drive measurable improvements in curriculum quality and engagement.
Projects
Selected systems I've designed and shipped. Most are internal to the companies I built them for.
Agentic RAG Knowledge Assistant
Lippo Malls Indonesia
An agentic RAG chatbot grounded in SOPs and regulations, served on on-premise vLLM with Redis and Qdrant memory, evaluated with LLM-as-a-Judge.
HVAC Energy Optimization
Lippo Malls Indonesia
Predictive ML models on real-time IoT sensor data that manage HVAC energy consumption, cutting operational costs by more than 30%.
Predictive Maintenance
Pupuk Indonesia
An AI-based predictive maintenance system that cut unscheduled plant shutdowns from 15 to 0 within 8 months, preventing losses of up to IDR 24B per incident.
Profit & Loss Projection
Pupuk Indonesia Group
AI-based P&L projection for every subsidiary, compressing a 7-working-day process into 15 minutes with over 95% accuracy.
Enterprise Data Platform
Pupuk Indonesia Group
An enterprise-grade Snowflake platform that serves as a single source of truth, unifying data operations across every business line in the group.
Achievements
Innovation awards and teaching.
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2025
Best Innovation
Pupuk Indonesia Innovation Awards
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2024
Platinum Award
TKMPN National Innovation
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2024
Best Sustainability
Pupuk Indonesia Innovation Awards
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Machine Learning Instructor
Bangkit Academy, led by Google, GoTo & Traveloka
Writing
Notes from building production AI: APIs, agents, and retrieval.
Featured · Engineering
FastAPI for AI Systems: How I Build APIs That Are Reliable & Maintainable
How I structure FastAPI services that sit in front of models and agents, so they stay reliable under real traffic and easy to change as the AI underneath evolves.
Read on MediumSeries · Agents
Learning Google Agent Development Kit (ADK)
A multi-part series on Google's ADK, starting from building your first agent.
Start with Part 1Fundamentals · Retrieval
Introduction to Vector Databases
What vector databases are, how they store and search embeddings, and why they sit at the heart of RAG systems.
Read on MediumSkills
AI
Programming Languages
Framework & Platform
Education
Brawijaya University
Bangkit Academy 2021
Selective, industry-led program on TensorFlow development and deep learning, capped by a team capstone building a Flood Disaster Warning System.
Let's build something.
Open to conversations about LLM systems, agentic AI, and MLOps.