Looking for a job

Frank Chang

@frankchang11

Senior Software Engineer at Glean building Claude-powered AI workflows and evaluation tools that cut investigation time to under 30 minutes.

United States

Message

At Glean, I build full-stack AI product workflows that connect Claude APIs with React and TypeScript applications and Python/FastAPI services. I also developed evaluation and observability tooling that reduced investigation time from several hours to less than 30 minutes.

Previously, I built digital-health features at Omada Health, financial product and transaction workflows at Coinbase, and backend services at Amazon. Across these roles, I’ve improved performance and reliability, including reducing Glean API p95 response time by approximately 37% and Coinbase transaction-history response times by roughly 30%.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Glean

Feb 2022 - Present (4 years 8 months)

Built full-stack AI product workflows integrating Claude LLM APIs with React and TypeScript applications and Python/FastAPI backend services. Designed and maintained REST and WebSocket APIs for real-time workflows, and reduced p95 response time by approximately 37% through request batching, asynchronous processing, Redis caching, and efficient database access patterns.

React TypeScript Python fastAPI Claude APIs REST APIs WebSockets Redis PostgreSQL AI Observability Tool Evaluation Mentorship

Senior Full Stack Engineer

Omada Health

Jul 2020 - Jan 2022 (1 year 6 months)

Built patient-facing and internal care-management features using React, TypeScript, Ruby, Python, GraphQL, PostgreSQL, and AWS. Helped identify boundaries in a tightly coupled application and move critical workflows into independently deployable services, reducing deployment time by 45% and lowering change-related production incidents.

React TypeScript Ruby Python GraphQL PostgreSQL AWS Kafka HIPAA Microservices Mentorship

Software Engineer

Coinbase

Apr 2017 - Jul 2020 (3 years 3 months)

Built and maintained web and backend features for account, portfolio, and digital-asset transaction experiences. Developed event-processing workflows for transaction confirmations, balance updates, and customer notifications, supporting hundreds of thousands of events each day.

Web Development Backend Development Event Processing Performance Optimization Database Query Optimization Caching Testing Automation

Software Development Engineer

Amazon

Sep 2014 - Mar 2017 (2 years 6 months)

Built and maintained backend services and internal operational tools using Java, JavaScript, SQL, DynamoDB, Amazon SQS, and AWS. Automated recurring data-processing and reporting workflows, saving teams approximately 15 hours each week.