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Jaider Cueto

@jaidercueto

Full-stack developer building end-to-end web products, optimizing performance, and delivering features from idea to deployment.

Colombia

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What I'm looking for

I’m looking for a team where I can own full-stack features end to end, collaborate through iterative delivery, and keep improving performance and reliability in modern web and mobile environments.

I’m a full-stack web developer with experience in full-stack engineering and end-to-end web solution development. I’ve worked on independent products from conception to deployment and helped optimize commercial platforms by resolving inefficient database queries (N+1). My technical background lets me adapt across environments (Web and Mobile) using technologies such as React, Angular, Node.js, and Flutter.

Most recently, I improved Royal Films website performance by fixing inefficient queries and optimizing the database with strategic indexes, while contributing front-end features like email verification and external service integration. As a freelancer and in prior work, I designed real estate appraisal web applications with admin controls and downloadable PDF reports, and I built/maintained Ruby on Rails applications with Flutter support—always prioritizing stability, performance, and clear collaboration.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

PNG Technology Solutions

Feb 2026 - Apr 2026 (2 months)

Improved Royal Films website performance by resolving N+1 inefficient queries and optimizing the database with strategic indexes. Contributed to front-end features including email verification and external service integration.

Angular N+1 Query Optimization Indexing Git Email Integration

Full-Stack Web Developer

Freelancer

Feb 2025 - Sep 2025 (7 months)

Designed and developed a real estate appraisal web app with property data entry, automatic calculation, and downloadable PDF report generation. Built an administrator panel to track usage history and adjust price-per-square-meter by stratum.

ReactJS Bootstrap Express Sequelize PostgreSQL Git

Full-Stack Web Developer

Joyful Labs

Aug 2023 - Jun 2024 (10 months)

Developed and maintained web applications with Ruby on Rails, ensuring effective front-end and back-end integration. Supported a transportation app built with Flutter by resolving user-reported bugs and improving stability and performance.

Ruby on Rails JavaScript CSS Flutter Docker DynamoDB Debugging Git