Andrew Tirto Kusumo
Senior Data Engineer
Building data infrastructure that scales.
About
Data Engineer with 7+ years of experience building scalable data pipelines, streaming architectures, and analytics platforms across fintech companies. Passionate about making teams work faster and better through reliable data infrastructure.
Languages
Big Data
Orchestration
Cloud
Data Modeling
Databases
DevOps / Infra
Other
Experience
Funding Societies
Senior Data Engineer
Nov 2024 — Present
- •Led the Finance & Risk DE Team to generate multiple reports for Finance Closing, FP&A Reports, ECL, and Regulatory Reports
- •Migrating legacy pipelines to a more sustainable approach using ECS
- •Handling several high priority projects with external partners
Paper.id
Senior Data Engineer
May 2024 — Oct 2024
- •Built a streaming pipeline from scratch using Google Datastream, Pub/Sub, and Dataflow to ingest data from App DB to BigQuery
- •Fixed existing dbt ELT inefficiencies, improving development time by ~100%
- •Reduced BigQuery costs by ~20% per month through targeted optimization
- •Created a cost management dashboard tracking project-level spend daily
Flip.id
Data Engineer Manager
Dec 2022 — May 2024
Senior Data Engineer
Sep 2021 — Dec 2022
- •Built a streaming pipeline from scratch using Google Datastream, Pub/Sub, and Dataflow
- •Created end-to-end ELT pipelines with dbt, implementing tests and query dependencies
- •Reduced BigQuery costs ~20% per month through strict partitioning and clustering
- •Built and managed the Data Engineer team from zero — hiring, career framework, and processes
- •Developed a credit scoring POC for a new lending product with Docker and FastAPI
- •Provisioned Redash and Looker Studio dashboards for analysts and end users
JULO
Senior Data Engineer
Jan 2021 — Sep 2021
Data Engineer
Aug 2018 — Jan 2021
- •Managed and maintained Airflow data pipelines running 24/7
- •Created database replicas for streaming to master DB for analytics
- •Deployed ML models using Docker and H2O with feature implementation in Django
- •Designed and implemented PostgreSQL 10 range partitioning for large tables
- •Built an action log data archiver for a DB with nearly a billion rows
- •Integrated CircleCI for automated testing and deployment
Projects
Streaming Pipeline
Built a real-time streaming pipeline from scratch to ingest data from application databases to Google BigQuery using Google Datastream, Pub/Sub, and Dataflow.
KUACI — Open Source KYC
Created an open-source KYC tool for Indonesian KTP that translates ID numbers into location, gender, and date of birth. Contributed to the GitHub Arctic Code Vault.
BigQuery Cost Optimization
Identified and resolved BigQuery cost inefficiencies through strict partitioning, clustering, and pipeline optimization — reducing monthly costs by ~20%.
DE Team from Zero
Built and managed the Data Engineer team at Flip.id from scratch — established hiring pipelines, defined career frameworks, and set up engineering processes to scale the team.