Available for Senior Roles & Consulting

Crafting Digital Experiences & Scalable Systems

Hi, I'm Alex Rivera — a Senior Full-Stack Engineer specializing in high-performance cloud architectures, TypeScript ecosystems, and intuitive UI engineering.

Explore Projects Contact Me

Primary Stack: TypeScript React / Next.js Node.js Python Docker AWS

alex@dev-box:~/portfolio$ cat developer.ts

About Me

Engineering with Purpose & Precision

I am a full-stack engineer with over 6 years of professional experience building high-scale distributed applications and interactive frontend experiences.

My philosophy centers on clean architecture, resilient code, and frictionless user experiences. Whether optimizing database queries or crafting pixel-perfect interfaces, I bridge the gap between design and deep technical implementation.

Years Exp.

Projects Delivered

Happy Clients

PRs Merged

Technical Proficiency

Frontend (React / Next.js / TypeScript) 95%

Backend (Node.js / Express / GraphQL) 90%

Python & FastAPI Microservices 85%

Databases (PostgreSQL / Redis / MongoDB) 88%

Cloud & DevOps (Docker / AWS / CI/CD) 80%

Featured Work

Selected Engineering Projects

Aether AI Workspace

Multi-model AI agent canvas allowing real-time prompt streaming, interactive code execution, and autonomous workflow node diagrams.

Next.js 14 TypeScript Python / FastAPI WebSockets

GitHub Repo ↗ Live App ↗

PulseStream Analytics

High-throughput event streaming engine handling over 100k events/sec with sub-5ms latency and live Grafana dashboards.

Go Rust Apache Kafka PostgreSQL

GitHub Repo ↗ Live App ↗

Nexus Commerce Suite

Headless microservices e-commerce platform with GraphQL API, Stripe integration, instant Elasticsearch indexing, and sub-second checkout.

React Node.js GraphQL Redis

GitHub Repo ↗ Live App ↗

DevCraft Cloud IDE

In-browser IDE powered by WebAssembly and Docker containers, offering real-time pair programming and instant cloud sandboxes.

Vue 3 WebAssembly Docker Monaco Editor

GitHub Repo ↗ Live App ↗

Career History

Work Experience

Senior Full-Stack Architect

@ Nexus Technologies Inc.

2023 — Present

Architected and deployed microservices backend handling 4M+ daily active sessions using Next.js 14, Node.js, and AWS Lambda.
Engineered custom WebSockets real-time sync layer reducing system latency by 45%.
Mentored a team of 10 engineers and implemented strict CI/CD quality gates using GitHub Actions and Docker.

TypeScript Next.js AWS GraphQL PostgreSQL

Lead Frontend Engineer

@ Aetherium Labs

2021 — 2023

Designed and built unified React design system & UI component library adopted across 12 enterprise web applications.
Improved Web Vitals scores from 52 to 98 across core marketing and app dashboards.
Integrated complex analytics and state management pipelines utilizing Redux Toolkit and React Query.

React Tailwind CSS Redux Vite

Full-Stack Software Engineer

@ Vanguard Digital

2019 — 2021

Developed RESTful & Python FastAPI services powering enterprise billing and analytics workflows.
Integrated Stripe payment processing pipeline handling over $10M in annual transactional revenue.
Automated database migration scripts and optimized SQL query execution times by 35%.

Python FastAPI Vue.js Docker MongoDB

Software Engineering Intern

@ Innovate Cloud

2018 — 2019

Built internal dashboard web application using Express and Vanilla JavaScript for monitoring server health.
Wrote unit and end-to-end integration tests using Jest and Cypress, raising test coverage to 85%.

Node.js Express Jest Git

Let's Connect

Get In Touch

Whether you have an upcoming project, a senior opportunity, or just want to chat about cloud architecture and developer tools — feel free to drop a message!