Lynn
I'm a software engineer with a passion for building large-scale, real-time data systems.
About
I’m a software engineer with a passion for building large-scale, real-time data systems. I enjoy turning complex data problems into reliable, scalable backend solutions using Python, Java, and distributed technologies like Flink, Kafka, and Spark.
Most recently at SmartNews and Tokyo Ads, I’ve led design improvements for ad targeting and data quality pipelines, delivering fast, real-time insights to millions of users and improving system reliability and efficiency. I thrive in collaborative teams and love solving hard problems at the intersection of data engineering and software development.
- 3 years' experience
- Joined April 2026
Industry experience
- Software & Internet
- Media & Entertainment
- Computers & Electronics
Work experience
Built and optimized real-time data processing pipelines and backend services using Python, Java, SQL, Flink, Kafka, NoSQL and Airflow. Led redesign of the Custom Audience ad targeting system, improving reliability to 99.9%+ SLA and restoring advertiser trust. Implemented a real-time location indexing system with Kafka and Flink for ~15 million users, achieving ~6 ms latency in ad targeting with real-time processing and batch processing. Drove cost-optimization initiatives for audience storage and processing (~32% savings) and contributed to data quality infrastructure and dashboards across Kafka, Flink, DynamoDB, and external sources.
Analyzed large-scale, high-frequency financial market data (prices, trades, volatility) to generate actionable insights for trading and business strategy. Built reliable data pipelines and analytics reporting ensuring data accuracy, reproducibility, and timely delivery for executive decision-making.
Education
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