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Peter Lin

@peterlin

Senior full-stack Java engineer building distributed backend services, real-time data pipelines, and frontend apps with measurable impact.

United States

Message

What I'm looking for

I’m looking to bring my distributed full-stack and real-time data pipeline experience to a fast-paced environment with high ownership, where the direct impact of my work is clearly visible.

I’m a Senior Software Engineer with 12 years of experience building full stack, distributed systems, real-time data pipelines, and frontend apps using Python, Java, Node.js, Angular, React, and GCP. At Google Ads, I owned end-to-end delivery of a budget pacing feature on GKE with an Angular dashboard, reducing advertiser budget overspend incidents by 18% within two quarters of launch.

I architected high-performance ad auction components (including Python + Bigtable keyword index sharding for lower auction latency) and built internal gRPC APIs that cut targeting-change propagation from 15 minutes to under 2 minutes. I’m energized by fast-paced, high-ownership environments where impact is visible—shown in my work automating microservice deployments on GCP (Kubernetes/Borg) to reduce release time from 45 minutes to 10 minutes, while also delivering real-time billing updates and self-serve reporting APIs.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Google

Dec 2019 - Present (6 years 7 months)

Owned end-to-end delivery of a budget pacing feature for Google Ads, building a backend service on GKE and an Angular dashboard, reducing advertiser overspend incidents by 18% within two quarters. Architected core Auction Engine services and real-time pipelines (Python/Bigtable, gRPC, Pub/Sub, Dataflow, Node.js) to improve auction latency and enable near-real-time billing and reporting updates.

Java Python TypeScript JavaScript REST APIs gRPC Microservices Spring Boot Angular React Pub Sub Dataflow Node GCP GKE BigQuery Kubernetes Docker Kafka BigTable Spanner CI CD Jenkins Data Pipelines A B Testing

Senior Software Engineer

Clever Devices

Jan 2018 - Nov 2019 (1 year 10 months)

Developed a real-time vehicle tracking service in Java ingesting GPS data, improving dispatcher-facing arrival estimates from 45 seconds to under 10 seconds. Built React-based dispatcher dashboards and integrated GTFS-realtime for public arrival predictions, improving rider estimate accuracy and reducing related customer complaints by 22%.

Java React REST APIs SQL GTFS Realtime Data Visualization

Senior Software Engineer

Citi

Jun 2014 - Dec 2017 (3 years 6 months)

Built Java/Spring backend services for an internal loan processing application and developed React frontend components for an account management portal, improving processing time by 20% and page load times by 35%. Implemented REST APIs and automated Selenium/JUnit regression tests, and migrated legacy reporting from stored procedures to a Java service layer backed by Oracle to improve regulatory f