Smith Ma
I’m a Senior Full-Stack Engineer with 12 years of experience designing and delivering scalable backend services, especially with Node.js, Python, and PostgreSQL.
About
I’m a Senior Full-Stack Engineer with 12 years of experience designing and delivering scalable backend services, especially with Node.js, Python, and PostgreSQL. I focus on building reliable data models and API layers, and I like pairing engineering fundamentals with practical delivery—using testing strategies and TDD where it matters to keep systems stable at scale.
I also build cross-platform mobile experiences with React Native and Expo, owning the development lifecycle from database schema design through client-side implementation. Recently, I’ve led migrations, designed high-throughput notification dispatch and analytics event tracking for intermittent connectivity, and mentored engineers while improving review processes and performance in production systems.
- 10 years' experience
- Joined September 2026
Industry experience
- Healthcare
- Software & Internet
- Financial Services
- Professional Services
- Media & Entertainment
Work experience· 5 roles
Led architecture of an internal developer platform using Node.js/Express, standardizing release processes across three product teams. Built a Stripe payment integration layer with Python FastAPI, including secure webhook verification and idempotency for high-volume transactions. Developed a TypeScript/React customer dashboard that strictly followed Figma designs and responsive layout requirements. Migrated legacy reporting queries from MongoDB to PostgreSQL to reduce latency by eliminating unindexed aggregation pipelines. Implemented Vercel CI/CD pipelines for automated preview environments, improving collaboration and reducing merge conflicts. Owned technical SEO for marketing pages using Next.js SSR and integrated LeadSquared CRM via Django REST APIs to synchronize lead status updates while preventing duplicates during peak campaign periods. Established checkout testing standards using Jest and Cypress for Stripe subscription edge cases.
Integrated Stripe payment processing into an appointment booking system, using webhooks to confirm subscriptions and update user statuses. Built provider portal backend services using Django and FastAPI, exposing REST APIs to support real-time availability on the frontend. Improved site performance and technical SEO via Next.js server-side rendering for landing pages. Connected LeadSquared CRM through API endpoints in Node.js to sync lead data from marketing forms into the sales pipeline and reduce duplicates. Set up analytics tracking and A/B testing infrastructure on Vercel to measure conversion across landing pages. Refactored a legacy Express service to TypeScript, improving type safety and reducing runtime errors in webhook middleware.
Designed an internal API gateway with Node.js/Express to route traffic between legacy Django services and new FastAPI microservices. Integrated Stripe into a subscription management module to handle webhooks and keep billing status synchronized with the user database. Optimized reporting dashboard database queries by adding indexes and caching layers to reduce load times for administrative users.
Education· 10
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