Open to opportunities

Raul Perez

@raulperez2

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Senior software engineer building secure, high-traffic full-stack platforms with Node.js, React, and TypeScript.

Mexico

Message

What I'm looking for

I’m looking for a role where I can architect secure, high-performance systems—microservices and modern APIs—while improving reliability, testing, and database performance in a remote-first team that values mentorship and engineering excellence.

I’m a Senior Software Engineer with 10+ years of experience building and scaling high-traffic platforms using Node.js, React, and TypeScript. I specialize in full-stack architecture, microservices, and high-performance APIs, delivering secure and scalable fintech and healthcare systems serving hundreds of thousands of users.

Across my roles, I’ve owned end-to-end architectures—defining service boundaries, designing GraphQL + REST layers, implementing JWT and RBAC authorization, and optimizing database performance with caching and indexing strategies. I’m also focused on reliability and quality through standardized logging/error handling and end-to-end testing, and I enjoy mentoring engineers on production-ready system design.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

PocketHealth

Oct 2024 - May 2026 (1 year 7 months)

Architected a secure medical imaging access system by defining service boundaries and designing a GraphQL/REST API layer to unify imaging metadata across patient portals and provider integrations. Led RBAC-based multi-tenant authorization, Redis caching, and React patient dashboard architecture, improving reliability with standardized logging, error handling, and end-to-end tests using Jest/Cypres

TypeScript GraphQL REST APIs RBAC JWT Redis React PostgreSQL Cypress

Software Engineer (Backend)

Credera

May 2019 - Sep 2024 (5 years 4 months)

Delivered scalable Node.js/TypeScript backend architectures for healthcare and fintech clients by defining API standards and evolving monolithic services into modular microservices. Built GraphQL/REST integrations, React operational dashboards, and secure JWT/RBAC authentication, optimizing database performance and deployments via Docker and GitHub Actions.

TypeScript GraphQL REST APIs Microservices JWT RBAC PostgreSQL Docker React

Software Engineer (Full-Stack)

Memed

Apr 2017 - Apr 2019 (2 years)

Designed backend architecture for a digital prescription lifecycle system, building Node.js services and REST APIs to support prescription creation, validation, and pharmacy workflow orchestration. Developed React applications for clinical prescription workflows and implemented secure authentication/authorization, improved logging/error handling, optimized database queries, and added automated tes

Node.Js Development REST APIs React Authentication PostgreSQL Query Optimization Logging Testing

Software Engineer

Kueski

Jun 2014 - Mar 2017 (2 years 9 months)

Developed backend systems for a fintech lending platform, building REST APIs for loan origination and customer lifecycle workflows with validation and business rule enforcement. Optimized PostgreSQL/MySQL schemas and queries for credit, customer, and reporting systems, and built internal React-based operational tools for loan review workflows.