Timothy Hartanto

Comchord

March 2026 – Present

InternshipCurrent

Migrated CoachBetter's core AI evaluation engine from a third-party black-box (Dify) to Gemini + Langfuse, building multi-stage scoring
pipelines with structured-JSON output and bringing prompt versioning and full LLM observability in-house.
Shipped a Pro-tier Client Insights feature on a parallelized fan-out/fan-in LLM pipeline (3 Gemini analyzers + compiler) and prototyped a
multimodal emotion-analysis POC fusing Deepgram diarization with per-utterance Gemini audio+text dissonance detection.
Built the AI analysis layer for ComChord's conversation-intelligence platform, encoding proprietary CHAT/ACT frameworks into Langfuse-
versioned Gemini prompts and delivering 1:1 and team reports via schema-validated direct-JSON LLM output.
Hardened production LLM pipelines across both products with a Gemini speaker-labeling stage over Deepgram nova-3 diarization,
transcription retry/pre-flight layers, and standardized Langfuse tracing plus PostHog session replay for debugging.

PT Deloitte Consulting

December 2021 – September 2024

Other

Drove enterprise data governance for a state-owned bank, auditing 100+ siloed databases and reducing compliance risks by 70%
Migrated data warehouse from AWS Redshift to Snowflake and led refactoring of 500+ stored procedures for a multinational FMCG company.
Deployed Power BI risk profile dashboard consolidating 100+ business units to streamline subsidiary integration for a regional water utility.
Built Power BI dashboard tracking $100M+ Generative AI initiatives across 12 APAC markets for daily C-suite briefings.
Assessed business processes and identified automation opportunities for an Indonesian telco, reducing manual work by 60%

Project highlights