Ju-Han Tarn
Software Engineer | Salesforce Data Cloud | Ex-Intuit | Java, Python, Javascript, React, GraphQL | Drove $15M ARR Protection & 95% Accuracy ML Tax Solutions
- Role
- Software Engineer at Salesforce
- Location
- Palo Alto, CA, US
- LinkedIn followers
- 500 followers
About Ju-Han Tarn
I’m a Software Engineer with experience building large-scale, high-impact systems at…
Experience
Software Engineer
Feb 2024 — Present
Software Engineer on the Data Cloud team, safeguarding $15M+ in annual recurring revenue from platform issues by implementing comprehensive logging improvements and automated recovery mechanisms for Data Cloud pipelines, resulting in 0 customer losses in a $1.2B annual revenue platform- Architected and delivered enterprise data management service by refactoring monolithic services into scalable microservices with REST APIs, implementing persistent field storage and cross-system synchronization, achieving 100% test coverage with JUnit and Mockito while coordinating across multiple engineering teams- Reduced system outages by 75% through implementation of automated fallback mechanisms for EC2/EKS jobs and enhanced monitoring alerts for job start delays, saving over $10M in avoided downtime costs- Led multi-region deployment validation across 8+ AWS regions, ensuring platform reliability and performance for global enterprise customers- Increased batch processing capacity from 100 to daily transforms by optimizing resource allocation and removing artificial limits, reducing processing bottlenecks by 40%- Enhanced data accuracy by 35% across 50+ countries by developing currency validation framework through ISO code enforcement across Batch Data Transform workflows
Education
Bryn Mawr College
Bachelor's degree
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