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Scott Lam

@scottlam

Senior software engineer specializing in scalable full-stack platforms, reliable backend services, and real-time customer workflows.

United States

Message

What I'm looking for

I want to build scalable full-stack platforms and dependable backend services, owning API design, real-time workflows, and performance/observability improvements to deliver reliable merchant and customer experiences.

I’m a Senior Software Engineer with 10 years of experience building scalable full-stack applications. I’ve progressed from PHP-based ecommerce development through gaming microservices to senior platform architecture, with a focus on backend reliability and performance.

At Block (Square), I architect and maintain backend services for Square Payments Platform using Go, Python, and AWS. I design REST API endpoints integrated with PostgreSQL, build real-time notification workflows with WebSockets and Redis, and improve production reliability through observability dashboards with AWS CloudWatch and Datadog.

Previously at Verys, I led architecture for BigCommerce Subscription Management Platform using TypeScript, React, Node.js, and Prisma ORM. Earlier, at Verys and Interush, I built microservice APIs for Riot Games and developed ecommerce APIs and Magento extensions—always with a strong emphasis on maintainable systems, monitoring, and performance optimization.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Block (Square)

Jun 2021 - Present (5 years 1 month)

Architects and maintains backend services for the Square Payments platform, supporting high-volume merchant transactions and seller dashboard features. Builds real-time notification workflows and improves performance, observability, and security for merchant integrations.

Go Python AWS PostgreSQL REST APIs WebSockets Redis AWS Cloudwatch Datadog Kubernetes Security

Senior Software Engineer

Verys

Mar 2019 - Jun 2021 (2 years 3 months)

Led architecture for the BigCommerce subscription management platform, delivering reusable business logic across SSR and API layers. Designed scalable data models, improved release processes with monitoring, and built background job systems for subscription renewals and billing events.

TypeScript React PostgreSQL Zustand Tanstack Query New Relic GraphQL Background Jobs

Software Engineer

Verys

Jun 2017 - Mar 2019 (1 year 9 months)

Developed scalable microservice APIs for Riot Games gaming account and microtransaction workflows in production. Implemented monitoring, performed load testing against SLI targets, and supported acceptance of new account and purchase flow features.

Microservices APIs Splunk New Relic AWS Cloudwatch Load Testing Performance Tuning

PHP Developer

Interush

Aug 2016 - Jun 2017 (10 months)

Built and maintained ecommerce APIs and Magento extensions for the Interush Magento commerce platform. Resolved production bugs and optimized PHP web applications to improve page load performance and checkout reliability.

PHP Magento Performance Optimization Debugging