Hello — I'm

Adrian Madrid

Senior Software Engineer

Senior Software Engineer with 13+ years of experience building high-performance web apps using Next.js, React, and Node.js. Proven expertise in AI/ML integration, scalable architecture, and cloud-native development. Strong track record of delivering modern, reliable, and user-focused solutions.

Skilled in Agile, DevOps, and mentoring teams to deliver robust, scalable products. Passionate about leveraging modern technologies to solve real-world problems and drive business value.

Top Skills

OpenAI API
React
Next.js
TypeScript
JavaScript
Redux Toolkit
Tailwind CSS
Shadcn UI
Node.js
Express.js
REST APIs
GraphQL
WebSockets
PostgreSQL
Redis
MongoDB
Prisma
AWS
Docker
GitHub Actions
Git
JWT
Jest
Playwright

Projects

ShipStation, Order Tracking Dashboard
- react
- redux toolkit
- node.js
- postgresql
- websocket
- docker
Improved the order tracking dashboard for over 130,000 e-commerce merchants by refactoring legacy React class components to functional components with hooks, and introducing Redux Toolkit for state management.
ShipStation, Order Tracking Dashboard
- react
- redux toolkit
- node.js
- postgresql
- websocket
- docker
Improved the order tracking dashboard for over 130,000 e-commerce merchants by refactoring legacy React class components to functional components with hooks, and introducing Redux Toolkit for state management.
Wayfair, Product Page Redesign
- react
- next.js
- node.js
- graphql
- redis
- aws
Led the migration from monolithic frontend architecture to modular React components with server-side rendering, reducing page load times by 25% and boosting conversion rates by 15%.
Wayfair, Product Page Redesign
- react
- next.js
- node.js
- graphql
- redis
- aws
Led the migration from monolithic frontend architecture to modular React components with server-side rendering, reducing page load times by 25% and boosting conversion rates by 15%.

Experience

Built AI-driven product features using Next.js and Node.js, focusing on intelligent search, classification, and user intent understanding.
Developed LLM-powered workflows using OpenAI APIs for automating product categorization, recommendations, and support-style responses.
Designed retrieval-based systems (RAG-style) using structured data and pgvector to improve matching between buyers, sellers, and listings.
Implemented fallback logic and guardrails for unreliable LLM outputs, ensuring safe and consistent behavior in production flows.
Worked across ambiguous requirements to ship iterative AI features, balancing user experience, reliability, and system constraints.
Optimized real-time APIs and frontend performance to support AI-assisted user interactions at scale.

Built real-time shipment tracking dashboard serving 130,000+ merchants using Next.js.
Developed AI-powered automation workflows using OpenAI APIs and LangChain to streamline support operations.
Implemented semantic search using pgvector and PostgreSQL to improve ticket resolution accuracy.
Optimized frontend performance using advanced state management (Zustand) and rendering improvements.
Designed secure authentication systems using OAuth 2.0, JWT, and NextAuth.js.
Integrated AI-driven features into production workflows for support and operational efficiency.

Migrated legacy React application to Next.js, improving performance (–25% page load time) and increasing conversions (+15%).
Worked on data and product systems supporting structured inputs for future AI-driven search and recommendation use cases.
Built internal tools and prototypes to improve engineering productivity and enable faster experimentation with automation workflows.
Contributed to system design for scalable e-commerce platform architecture enabling personalized and intelligent product experiences.
Improved application architecture using Apollo Client, Prisma, and Redux Toolkit to support complex, data-driven UI behavior.
Implemented internationalization (i18next, FormatJS), supporting scalable content systems usable in automated and AI-assisted workflows.

Engineered full stack e-commerce features using React, Next.js, Node.js, and the Redux ecosystem.
Designed and deployed scalable backend services using Express and NestJS with Docker and Kubernetes.
Integrated payment systems including Stripe, PayPal, and Plaid with secure authentication flows.
Built and maintained CI/CD pipelines using AWS CodePipeline, CodeBuild, and Terraform.
Increased code reliability by improving automated testing coverage using Jest and performance testing tools.

Developed HIPAA-compliant healthcare applications using Vue.js, Django, and FastAPI.
Re-architected monolithic systems into microservices using AWS Lambda and Serverless Framework.
Implemented real-time communication features using WebSockets and MQTT.
Built data visualization dashboards using Vue.js, Chart.js, and D3.js.
Managed cloud infrastructure on AWS and Azure with a focus on security and scalability.

Built a scalable hotel booking platform using Laravel, jQuery, and Bootstrap.
Integrated geolocation and search features using Google Maps API and Elasticsearch.
Implemented real-time booking notifications using Pusher and Firebase.
Improved SEO performance and application security using best practices and backend optimizations.