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Salvador Perez

@salvadorperez

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A Senior Full Stack Engineer | 10+ yrs | MERN Stack | AWS | AI - supportive team collaborator.

United States

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What I'm looking for

I am seeking a role that fosters innovation and collaboration, where I can leverage my full stack expertise to drive impactful projects and contribute to a forward-thinking team.

I am a Senior Full Stack Engineer with over 10 years of experience in delivering cloud-native, data-intensive applications across various industries, including logistics, HR-tech, e-commerce, and healthcare. My expertise lies in the MERN stack (MongoDB, Express, React, Node.js), as well as Java/Spring and Python/Django. I am known for building high-performance user interfaces, secure real-time APIs, and event-driven microservices on AWS. My passion for clean architecture and test automation drives me to embed AI capabilities, such as chatbots and semantic search, using OpenAI tools to unlock significant business value.

Throughout my career, I have modernized legacy platforms, architected real-time analytics dashboards, and embedded AI-powered assistants that have significantly improved operational efficiency. I champion a test-first culture, having written over 400 Jest and Cypress test cases, which has raised the CI pass rate to an impressive 98%. My leadership experience includes mentoring teams of engineers and introducing design review processes that have streamlined project delivery and reduced sprint spill-over.

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Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Software Engineer

Current

BairesDev

Sep 2021 - Present (4 years 2 months)

Modernized three legacy platforms by migrating to React 18 + Vite on the front end and Node/Express micro-services on AWS Lambda, cutting hosting costs 28% and boosting request throughput 3x. Architected a real-time analytics dashboard with React, Chart.js, and WebSockets that reduced operations-team incident resolution time from 45 min to 15 min.

React Node Express AWS Lambda Chart.Js WebSockets Jest Cypress GitHub Actions

Senior Full Stack Software Engineer

WoahStork

Apr 2020 - Present (5 years 7 months)

Optimized the core e-commerce app using the MERN stack, supporting steady traffic growth and delivering a smoother experience for repeat users. Devised JWT + OAuth 2.0 auth flows and fine-grained RBAC, eliminating 100% of previously reported authorization bugs.

MongoDB Express React JWT

Lead Frontend Engineer

Tentaroo

Feb 2017 - Present (8 years 9 months)

Re-platformed the camp-booking suite from PHP to Next.js (SSR), elevating Lighthouse performance score from 56 to 96 and lifting organic traffic 35%. Spearheaded an event-management SPA in Angular 8 with Reactive Forms and NgRx, reducing page weight 40% and support tickets 30%.

Next.js PHP Reactive Forms NgRX

Full Stack Developer

CyberNova

May 2015 - Present (10 years 6 months)

Delivered real-time patient-monitoring dashboards using React, Django Channels, and Socket.io, providing clinicians with sub-second vital-sign alerts. Modeled relational schemas in PostgreSQL and cached high-throughput feeds through Redis, sustaining 50k+ concurrent WebSocket connections.

React Django Channels Socket.IO PostgreSQL

Backend Developer

UBreakiFix

Oct 2014 - Present (11 years 1 month)

Built a Laravel + MySQL service layer with GraphQL gateways, slashing query round-trips by 60%. Set up Jenkins pipelines with automated database migrations and Selenium smoke tests, improving deployment success rate from 80% to 99%.

Laravel MySQL GraphQL Jenkins

Full Stack Developer

ODesk

Jul 2012 - Present (13 years 4 months)

Delivered 20+ SMB projects, including multi-tenant CRM systems in ASP.NET MVC and dynamic dashboards in AngularJS/jQuery. Authored early Python automation scripts for data scraping and report generation, saving clients ~200 hours/month in manual effort.

ASP.NET MVC AngularJS jQuery Python