about

Eduardo Mazzucco Cividini

Senior Full Stack Engineer & Tech Lead

LinkedIn

What I Do

I architect and build production-grade web applications for US-based companies, combining hands-on full-stack development with technical leadership. My work spans the entire product lifecycle: from system design and database architecture to deployment pipelines, team coordination, and incident response.

I specialize in TypeScript/JavaScript ecosystems (Next.js, React, Node.js) with deep expertise in serverless and cloud infrastructure (GCP, AWS, Firebase), identity management (Auth0), and AI/LLM integration (OpenAI, Gemini, Claude) for production features.

Beyond writing code, I lead engineering efforts: conducting code reviews, managing deployments across environments, coordinating with cross-functional teams, and making architectural decisions that scale.

Background

My path to engineering started with a law degree, where I developed strong analytical thinking and attention to detail. That background gives me a unique perspective when approaching complex technical challenges, particularly in regulated industries like fintech and healthtech.

Back in 2017, I co-founded WiZED, a ticket-selling startup that used blockchain for fraud-proof validation. Building that company from zero taught me how to manage teams, optimize for cost efficiency (running a 6k-user platform on ~$1/month serverless infrastructure), and ship under pressure. That entrepreneurial mindset shapes how I approach every project: ship fast, keep it lean, make it scale. Serverless architecture has been a core part of every product I've built since, keeping infrastructure costs minimal while handling real-world traffic.

Core Stack

TypeScript/JavaScript: 9+ yearsReact: 8+ yearsNext.js: 6+ yearsNode.js/Express: 9+ yearsGoogle Cloud Platform: 9+ yearsNoSQL (Firestore/MongoDB): 9+ yearsTailwindCSS: 5+ years

Also Work With

Auth0/Identity ManagementDocker & CI/CD (GitHub Actions, ArgoCD)AI/LLM Integration (OpenAI, Gemini, Claude)Serverless Architecture (Cloud Functions, Lambda)Redis & CachingAWS/Azure: 5+ yearsSQL (MySQL, PostgreSQL): 5+ yearsAngular, Vue.js: 5+ yearsNestJS/Prisma: 4+ yearsZustand/State ManagementShadCN/Radix UIStripe/MercadoPago PaymentsSentry/Monitoring

Recent Work

At DayZero (fintech), I architected financial reporting features for an ecommerce accounting platform, built partner API integrations, and helped scale the product from 0 to hundreds of paying customers.

Through eduM Solutions, my contracting company, I build and ship products for US-based clients while also developing my own SaaS products: SuperTixs (event ticketing), Celebrei (gift registry), and Phiolab (AI content generation), each with full payment integration, real-time features, and production monitoring.

Available for Contract Work

I work as a contractor for US-based companies, available during Pacific Time hours. If you're looking for a senior engineer or tech lead who can ship fast and lead teams, let's talk.

Get in touch