I’m Marcelo Llanes, a full-stack developer with a strong passion for building modern web applications, scalable APIs, and user-centered digital solutions. I’ve built responsive interfaces with Next.js, Node.js, TypeScript, and databases like PostgreSQL and MongoDB, while applying tests and robust development practices (TDD) to ensure reliable code. I thrive in collaborative, agile environments and enjoy turning complex problems into elegant, maintainable software. My background includes a Master’s program focused on Big Data, IoT, Smart Data, and Software Testing, which continues to inform my approach to data-driven software engineering. I’m excited to contribute to innovative teams, explore research-driven development, and grow as a developer and engineer in the evolving tech landscape.

Marcelo Llanes

I’m Marcelo Llanes, a full-stack developer with a strong passion for building modern web applications, scalable APIs, and user-centered digital solutions. I’ve built responsive interfaces with Next.js, Node.js, TypeScript, and databases like PostgreSQL and MongoDB, while applying tests and robust development practices (TDD) to ensure reliable code. I thrive in collaborative, agile environments and enjoy turning complex problems into elegant, maintainable software. My background includes a Master’s program focused on Big Data, IoT, Smart Data, and Software Testing, which continues to inform my approach to data-driven software engineering. I’m excited to contribute to innovative teams, explore research-driven development, and grow as a developer and engineer in the evolving tech landscape.

Available to hire

I’m Marcelo Llanes, a full-stack developer with a strong passion for building modern web applications, scalable APIs, and user-centered digital solutions. I’ve built responsive interfaces with Next.js, Node.js, TypeScript, and databases like PostgreSQL and MongoDB, while applying tests and robust development practices (TDD) to ensure reliable code. I thrive in collaborative, agile environments and enjoy turning complex problems into elegant, maintainable software.

My background includes a Master’s program focused on Big Data, IoT, Smart Data, and Software Testing, which continues to inform my approach to data-driven software engineering. I’m excited to contribute to innovative teams, explore research-driven development, and grow as a developer and engineer in the evolving tech landscape.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

Spanish; Castilian
Fluent
English
Intermediate

Work Experience

Full-Stack Developer at Thor-Provider
June 1, 2022 - Present
Developed responsive interfaces using Next.js, Material UI, and JavaScript. Built RESTful APIs with Node.js, Express, and MongoDB. Integrated services like Firebase, Elasticsearch, and Stellar ERP. Automated workflows such as PDF generation and email sending. Applied unit testing and Test-Driven Development (TDD) with Jest.
Full-Stack Developer (Remote) at Aurea Boutique
December 1, 2024 - October 5, 2025
Built online stores using Next.js, TypeScript, Tailwind, and Node.js. Created microservices-based APIs with Prisma and PostgreSQL. Implemented secure authentication with NextAuth. Applied TDD with Jest. Designed responsive UIs and automated user notifications via Telegram bot.
Front-End Developer (Remote) at Kiero Marketplace
January 1, 2022 - October 5, 2025
Developed front end with Next.js and TypeScript. Created reusable UI components using Material UI. Adapted interfaces for multi-screen sizes and devices.
Full-Stack Developer (On-site) at New Script
June 1, 2025 - October 5, 2025
Developed responsive interfaces using Next.js, Material UI, and JavaScript. Built RESTful APIs with Node.js, Express, and MongoDB. Integrated services like Firebase, Elasticsearch, and Stellar ERP. Automated workflows such as PDF generation and email sending. Applied unit testing and Test-Driven Development (TDD) with Jest.

Education

Bachelor's Degree in Automation Engineering at Technological University of Havana, José Antonio Echeverría (CUJAE)
September 1, 2019 - July 1, 2023
Master’s Degree in Systems and Computer Engineering at University of Cádiz (Universidad de Cádiz) – Research School of Engineering
October 1, 2024 - July 1, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services