Summary
Backend software engineer with experience building and maintaining large-scale, high-availability,
distributed systems. Led zero-downtime migrations and architectural refactors for APIs driving 20% of
Afterpay GMV at Cash App. Proven track record delivering revenue-critical integrations, resolving
production incidents and improving reliability at scale.
Experience
- Planned zero-downtime, phased migration of 20 workflows (500k req/day) from Java/RabbitMQ to
Kotlin/Temporal, redesigned into composable abstractions, eliminating recurring workflow
failures and reducing on-call burden by 80%
- Engineered staged refactor of virtual card APIs into modular, contract-tested components,
maintaining backward compatibility while decoupling product dependencies and eliminating a
recurring class of production regressions
- Led design and implementation of card issuing integration for Apple Wallet, aligning
cross-team stakeholders, extending internal card services APIs, and delivering end-to-end
user card provisioning and lifecycle management APIs
- Identified settlement gap before Target launch; shipped new settlement flow in one week,
safeguarding ~$100K annually
- Deployed coroutine-based mock server to simulate downstream latency and stress-test checkout
APIs at 200 RPS ahead of Black Friday; validated sufficient production capacity under load
and avoided unnecessary 2× Kubernetes scaling
- Implemented settlement logic to detect and recover card network over-captures, preventing
~$120K in annual losses
- Rewrote smoke test framework, reducing runtime by 75% and enforcing CI/CD promotion gates
to prevent regressions
- Built Python automation framework to scrape merchant data across 3 platforms, processing
1,000+ cases/week
- Refactored Python scripts to modularized design and migrated from AWS EC2 servers to
serverless Lambda functions
- Defined AWS Lambda and CloudWatch infrastructure in Terraform and deployed via CI/CD
pipeline
- Integrated Afterpay assets on 50 merchant sites/week using JavaScript, HTML, CSS
- Built demo store and 20+ enterprise product demos used by sales to close enterprise
merchant deals
- Developed internal Salesforce API integration to sync sales opportunities with external
partner API
- Deployed full-stack Node.js web app with MongoDB database to allow sales team to search
150,000+ account records
Skills
Languages
Kotlin, Java, Python, JavaScript, TypeScript
Technologies
Spring Boot, Temporal, gRPC, Kubernetes, AWS, DynamoDB, SQS, S3, RabbitMQ, Terraform, K6
Education
B.S. Computer Science
Oregon State University · 2022
B.A. Business Administration, Finance
Seattle University · 2017