Open to opportunities

Kevin Lim

@kevinlim

Message

I am a Senior Full Stack Engineer building scalable, AI-driven cloud platforms and leading distributed teams.

United States

Message

What I'm looking for

I am seeking a Senior Full Stack role building scalable, AI-driven cloud platforms (Fintech/Health/Web3), leading distributed teams, focusing on serverless architectures, GraphQL/APIs, OpenAI integrations, and measurable customer impact.

I am a Senior Full Stack Engineer with nine years building scalable, AI-driven software across Fintech, Healthcare, Edtech and Web3. I specialize in React, React Native, Next.js, Node.js, Nest.js, TypeScript and Python, and I focus on event-driven microservices and serverless cloud architectures.

I have designed and deployed serverless systems on AWS and GCP handling 1M+ daily transactions with sub-200ms responses, consolidated legacy APIs into GraphQL gateways, and led migrations that reduced infrastructure costs by 25%. I built OpenAI-powered analytics and symptom-triage chatbots that improved user engagement by 30% and reduced patient response time by 40%, while ensuring HIPAA and security compliance.

I enjoy leading distributed teams to deliver production-grade platforms, mentor engineers on CI/CD and scalable design, and drive measurable product impact. I'm looking to build AI-first products in environments that value technical ownership, reliability, and customer-focused outcomes.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Rocketech

Apr 2022 - Present (4 years 2 months)

Designed and deployed Fintech trading platforms with Next.js and TypeScript frontends and Nest.js microservices. Implemented AWS serverless workflows handling 1M+ daily transactions with sub-200ms responses and integrated OpenAI analytics to boost user engagement by 30%.

Next.js TypeScript Nest AWS Lambda DynamoDB SQS GraphQL

Full Stack Engineer

Empat

Jul 2020 - Feb 2022 (1 year 7 months)

Built HIPAA-compliant Healthtech SaaS using Next.js and Express.js and engineered an AI symptom-triage chatbot with FastAPI and OpenAI that reduced patient response time by 40%. Scaled REST and GraphQL APIs to 200K+ daily requests using Redis caching and implemented real-time WebSocket notifications.

Next.js MongoDB fastAPI Redis WebSockets AWS ECS

Full Stack Developer

Vention

Apr 2018 - Jun 2020 (2 years 2 months)

Developed Fintech and Web3 applications with Angular and Laravel, integrating smart contracts and payment gateways (Stripe, PayPal). Optimized MySQL queries to reduce response times by 30% and contributed to Docker-based CI/CD deployment automation.

Angular Laravel MySQL Docker Smart Contracts Stripe PayPal CI CD

Junior Full-Stack Developer

NextZen Minds

Jan 2016 - Mar 2018 (2 years 2 months)

Assisted in building Edtech SaaS and React Native mobile apps with offline-first capabilities and implemented JWT/OAuth2 role-based authentication. Contributed to Node.js/PostgreSQL backends and deployed microservices on GCP using Docker and Kubernetes.