Software Engineer & Architect

Hi, I'm Elvin, Software engineer.

Senior Developer with 5+ years building production systems that handle real money, real users, and real complexity. From fintech payment engines to enterprise e-commerce platforms across Latin America, the U.S., and Europe, I work across the entire stack — Java, Spring Boot, Node.js, React — delivering solutions that companies depend on to operate and grow. Open to freelance projects and new challenges.

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Portrait of Elvin Sanchez, Software Engineer

About me

With over 5 years of experience in full-stack development, I focus on building scalable architectures that don't compromise on user experience. I believe code is a craft that requires both technical rigor and creative intuition.

Currently focused on Java ecosystems, React, Distributed Systems, and refining modern web interfaces with a strong emphasis on performance and clean architecture.

Core Technologies

Java Rust lang TypeScript Python React Next.js Node.js Spring Boot Java Vert.x PostgreSQL Docker GraphQL AWS GCP

Professional Experience

2025 — Present

Senior Java Developer

Coderland

Senior engineer across five client engagements — from recovering 66 fintech deals blocked by a silent integration outage to identifying ~$12.5k a year in cloud savings for a European retailer.

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2022 — 2025

Fullstack Developer

Clinpays

Led the modernization of a payments platform: roughly 40% less technical debt, a redesigned merchant onboarding and a CQRS payment engine built to scale.

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2021 — 2022

Backend Developer

Leader Realty Inc

Made a U.S. real estate platform faster and ready to take payments: Laravel performance tuning, downtime-free database deploys, and Stripe and Apple Pay built from scratch.

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2020 — 2021