Open to opportunities

Ricardo Z

@ricardoz

Message

I am a Full Stack Engineer specializing in React, TypeScript, and scalable backend systems.

United States

Message

What I'm looking for

I'm seeking senior full-stack roles at mission-driven companies where I can design scalable web and backend systems, improve CI/CD and observability, collaborate in agile teams, and deliver measurable performance and UX improvements.

I am a Full Stack Engineer with deep experience in React, TypeScript, and Golang, building scalable web applications and resilient backend systems. I standardized a USPS UI library across 22 teams, optimized Next.js architecture with autoscaling on AWS, consolidated databases into a unified GraphQL API that cut dashboard latency by 67%, and scaled NestJS microservices to process 3M+ daily transactions with sub-50ms latency.

I drive observability and CI/CD improvements—managing Jenkins, GitHub Actions, and CircleCI to reduce incidents and accelerate releases—and implement PCI-compliant payment integrations and real-time mapping solutions. I thrive in agile, cross-functional teams and am eager to deliver measurable performance, reliability, and user-experience gains for mission-driven products.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

Accenture

Apr 2022 - Feb 2025 (2 years 10 months)

Standardized a USPS UI library across 22 teams, reducing UI inconsistencies by 60% and improving form success rates by 25%. Scaled Next.js and NestJS microservices on AWS to handle 3M+ daily transactions with sub-50ms latency while reducing production incidents 38% via automated CI/CD.

React Next.js TypeScript NestJS Prisma AWS ECS GraphQL CI CD

Full Stack Engineer

Cigna

Feb 2022 - Apr 2022 (2 months)

Built a Storybook + Material UI component system adopted by 19 teams and migrated 5 production apps to Next.js in 2 weeks, improving TTFB by 78%. Implemented observability and CI optimizations that reduced issue resolution time 33% and cut page load from 2.8s to 1.1s.

Storybook Material UI Next.js React GraphQL Elasticsearch AWS ECS GitHub Actions)GitHub Actions

Frontend Engineer

Touch

Nov 2021 - Feb 2022 (3 months)

Instituted a federated microfrontend architecture using single-spa and Module Federation, reducing cross-team integration incidents by 41% and improving parallel development velocity. Applied Web Workers and XState to increase rendering throughput 72% and support a 2.3× rise in concurrent users with sub-20ms update latency.

Module Federation React XState TypeScript Material UI Cypress

Web and Native Mobile Developer

Zappos Family of Companies

Oct 2018 - Aug 2021 (2 years 10 months)

Delivered a PWA that increased mobile conversion and reduced bounce by 17% and converted legacy React class components to hooks, lowering maintenance cycles 35%. Deployed payment infrastructure supporting 18.5M+ transactions/month with 99.99% uptime and reduced backend response times 24%.

React TypeScript PWA TypeORM RabbitMQ GraphQL SQL

Web Development Intern

Vegas.com

Nov 2016 - Dec 2017 (1 year 1 month)

Implemented React components and Redux middleware, reducing front-end bug reports 40% and improved initial load time 35% via Webpack code splitting. Automated builds with Jenkins, cutting deployment prep from 12 hours to 4 hours.

React Redux Webpack Jest Jenkins Cypress