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Mario Caesar Kristantoputra

Mario Caesar Kristantoputra

Data Engineer

Jakarta, ID
+62 812 8351 8545
English

Background


Work Experience

Work Experience

  • Senior ETL Developer - People Data, Agoda Services Co., Ltd.

    Mar, 2025 - May, 20252 months

    • Revamped the Greenhouse pipeline from Talend to Python, reducing total running time from 2.5 hours to 45 minutes and enabling consistent ingestion of ~8 GB CSV files into 33 SQL Server tables.

    • Refactored Bridge ETL scripts by replacing one-by-one API fetches with an SQL pre-fetch layer and parallelized requests, simplifying the pipeline architecture and cutting runtime from 3 hours to 30 minutes.

    • Built end-to-end pipelines for O’Reilly data using Python and Talend, automating daily SQL Server delivery and removing manual handoffs.

    • Upskilled five analysts in Python through focused mentoring sessions, enabling their contribution to internal Python development tasks related to ETL.

  • Mid-Data Engineer, PT Allo Bank Indonesia Tbk

    Sep, 2024 - Feb, 20255 months

    • Re-engineered core business summary ETL from Pandas to dbt, adding end-to-end lineage and delivering same-day insights 2 hours earlier to business stakeholders.

    • Developed dbt data marts for non-lending, telemarketing, credit risk, and operations teams, achieving a 60% runtime improvement through optimized staged processing, CTE refactor, and join-tuning.

    • Refactored 20 legacy Python SFTP feeds into a streamlined dbt workflow, trimming runtime from 60 minutes to 38 minutes, enabling full data lineage and auto-generated documentation.

    • Configured secure ZIP creation in the reporting pipeline with centrally managed credentials, enabling sensitive reports transmitted securely over email and meeting 100% compliance with internal reporting policy.

    • Collaborated with the Data Operations team to enhance data quality monitoring, successfully improving anomaly detection accuracy by 20% through a dashboard and automated daily ingestion comparison alerts.

  • Data Engineer and Analytics, PT Krom Bank Indonesia Tbk (Kredivo Group)

    Dec, 2023 - Sep, 20249 months

    • Implemented 15-minute latency CDC streams from multiple RDBMS to BigQuery using Confluent, providing near-real-time data readily available for stakeholders.

    • Managed PII tagging policies for new tables and columns in BigQuery according to PII regulations, achieving compliance with strict SLA under one day, and the latest columns were fully masked.

    • Productionized a POC PII-masking algorithm across critical tables to protect sensitive information while preserving key attributes for Product and Infosec analytics.

    • Engineered an auto-schema propagation function that forwards new API-source columns into L0 and L1 tables, eliminating column-mismatch job failures and significantly enhancing data quality.

    • Developed reusable ingestion pipelines from various sources with parameterised Jinja templates, cutting development time for similar data sources by two days.

  • Data Engineer and Analytics, PT FinAccel Teknologi Indonesia (Kredivo Group)

    Jun, 2022 - Dec, 20231 year 6 months

    • Applied a fully automated Freshdesk data stream via Cloud Functions and webhooks, streaming ticket events into a dedicated RDBMS for real-time analytics and reporting.

    • Created Airflow-orchestrated pipelines to process the Operations and Collection team data, trimming the ETL time needed from 30 minutes to 18 minutes.

    • Built a comprehensive monthly collector-cost table consolidating expenses from multiple sources, reducing manual reconciliation and establishing a single source of truth.

    • Delivered five OJK compliance reports via BigQuery before the regulatory deadline, coordinating closely with the Collections and Operations teams.

Skills

Skills

  • Inventing

    Electricity

    Sound Recording

    Motion Pictures

  • Entrepreneurship

    Business Development

    Product Innovation

    Industrial Research

Education

Education

  • Various fields of science and technology, Self-Education, Self-Taught

    Jan, 1859 - Oct, 1931

    Electrical Engineering

    Mechanical Engineering

    Chemistry

Awards

Awards

  • Congressional Gold Medal , United States Congress

    Awarded on: Jan 01, 1928

    Awarded for distinguished achievements and contributions to society.

Volunteer Work

Volunteer Work

  • Lead Researcher, Menlo Park Laboratory

    Jan, 1876 - Oct, 1931

    Conducted research and experiments leading to numerous patents and innovations.

    • Developed the phonograph, a device for recording and reproducing sound.

    • Invented the motion picture camera, contributing to the birth of the film industry.

Interests

Interests

  • Research and Development

    InnovationsExperimentation
References

References

  • Henry Ford

    Thomas Edison was a brilliant inventor and a visionary businessman. His work has had a profound impact on the modern world.