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Full-stack software developer with experience building end-to-end web and business applications, working across front-end and back-end technologies and integrating modern databases and APIs. Strong focus on clean implementation, performance, and delivering complete solutions from UI to data persistence. Open to travel and collaboration, with a track record of using multiple stacks (JavaScript/TypeScript ecosystems, .NET, Android, and database technologies) and building maintainable systems. Comfortable working on both feature development and full application delivery in team environments.…Full-stack software developer with experience building end-to-end web and business applications, working across front-end and back-end technologies and integrating modern databases and APIs. Strong focus on clean implementation, performance, and delivering complete solutions from UI to data persistence. Open to travel and collaboration, with a track record of using multiple stacks (JavaScript/TypeScript ecosystems, .NET, Android, and database technologies) and building maintainable systems. Comfortable working on both feature development and full application delivery in team environments.

Sergio Aguado Ayuso

Full Stack Developer, Web Developer, Software Engineer, +2

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Full-stack software developer with experience building end-to-end web and business applications, working across front-end and back-end technologies and integrating modern databases and APIs. Strong focus on clean implementation, performance, and delivering complete solutions from UI to data persistence. Open to travel and collaboration, with a track record of using multiple stacks (JavaScript/TypeScript ecosystems, .NET, Android, and database technologies) and building maintainable systems. Comfortable working on both feature development and full application delivery in team environments.…Full-stack software developer with experience building end-to-end web and business applications, working across front-end and back-end technologies and integrating modern databases and APIs. Strong focus on clean implementation, performance, and delivering complete solutions from UI to data persistence. Open to travel and collaboration, with a track record of using multiple stacks (JavaScript/TypeScript ecosystems, .NET, Android, and database technologies) and building maintainable systems. Comfortable working on both feature development and full application delivery in team environments.

Available to hire

Full-stack software developer with experience building end-to-end web and business applications, working across front-end and back-end technologies and integrating modern databases and APIs. Strong focus on clean implementation, performance, and delivering complete solutions from UI to data persistence.

Open to travel and collaboration, with a track record of using multiple stacks (JavaScript/TypeScript ecosystems, .NET, Android, and database technologies) and building maintainable systems. Comfortable working on both feature development and full application delivery in team environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Full Stack Developer

March 1, 2025 - Present

Build and deliver full-stack web applications using JavaScript/TypeScript and modern frameworks (React/Angular). Work with backend services (Node.js/Express and also .NET), design APIs, and integrate data stores such as MySQL, MongoDB, and Oracle. Apply responsive UI development with HTML/CSS and component-based approaches; collaborate with teams and follow agile practices.

Full Stack Developer

June 1, 2024 - June 30, 2024

Developed software as part of a full development lifecycle, including front-end development, back-end integration, and persistence layers. Applied skills with common frameworks and cloud/platform tooling, focusing on delivering production-ready features and maintainable code structure.

Full Stack Developer

June 1, 2024 - March 1, 2025

Built and maintained full-stack applications using modern web technologies and database systems. Worked with JavaScript/TypeScript ecosystems and back-end services, integrating relational databases and NoSQL stores as needed. Implemented UI components and application logic, connecting front-end to APIs and ensuring smooth end-to-end functionality.

Software Developer at Microsoft Power Apps Developer

March 1, 2024 - June 1, 2024

Develop business apps and workflows using Microsoft Power Apps and related Microsoft technologies, focusing on practical automation and integration. Build forms, data-driven screens, and connect app functionality to backend data sources.