Open to opportunities

Héctor José Díaz Sandate

@hctorjosdazsandate

Message

Full-stack developer building React/Node/AWS apps that ship fast, scale, and feel great.

Mexico

Message

What I'm looking for

I’m looking for a team where I can own features end-to-end—React/TypeScript frontends, Node/Express backends, and AWS serverless deployment—while writing clean, secure, maintainable code. I enjoy mentoring and shipping user-focused product improvements.

I’m a Full-Stack Developer with 2+ years building end-to-end web applications. I love turning ideas into clean, maintainable code and great user experiences.

In my recent role (Full-Stack & AWS Cloud Developer | Automatizate), I built modern React/TypeScript interfaces that consume REST APIs backed by AWS Lambda. I also developed serverless backends with Lambda + Node.js/Python, integrating DynamoDB and RDS MySQL, while hardening API security using IAM and sanitized JSON responses to protect PII.

Previously (Full-Stack Developer | SITS), I led the development of a union management platform and improved response times by 40%. I managed and mentored a team of 3 developers using Scrum, and architected an AWS deployment (S3, Lambda) that reduced infrastructure costs by 50%.

My featured projects keep me motivated—DeFi Commander, Umai, and IMM Portal—because they mix real features, real integrations, and real deployments. I’m passionate about owning features end-to-end: UI development, API design, data modeling, and cloud deployment.

Experience

Work history, roles, and key accomplishments

Full-Stack & AWS Cloud Developer

Automatizate

Sep 2025 - Apr 2026 (7 months)

Built React/TypeScript web interfaces consuming AWS Lambda-backed REST APIs and developed serverless backend services using Lambda, Node.js/Python, DynamoDB, and RDS MySQL. Hardened API security with IAM policies and maintained end-to-end ownership across UI, API design, data modeling, and cloud deployment.

React TypeScript AWS Lambda RESTful APIs DynamoDB AWS RDS AWS IAM Serverless Architecture NodeJS

Full-Stack Developer

SITS

Jan 2023 - Aug 2024 (1 year 7 months)

Led development of a union management platform using MongoDB, Express, React, and Node.js, improving response times by 40%. Managed and mentored a team of 3 using Scrum, architected AWS deployment (S3, Lambda) to reduce infrastructure costs by 50%, and automated data capture to cut manual workload in half.

MongoDB React AWS Lambda Amazon S3 Scrum Agile Performance Optimization NodeJS