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I am an experienced Front-End Developer based in Madrid, Spain, passionate about building modern, efficient, and accessible web applications. Over the years, I have specialized in technologies such as React.js, Next.js, TypeScript, and GraphQL, striving to deliver high-quality software solutions that improve user experience and performance. I enjoy collaborating closely with UX/UI designers and backend teams in API-first development environments. I am always eager to take on new challenges that expand my skills and contribute to projects that make a significant impact in both the telecom and government sectors.…I am an experienced Front-End Developer based in Madrid, Spain, passionate about building modern, efficient, and accessible web applications. Over the years, I have specialized in technologies such as React.js, Next.js, TypeScript, and GraphQL, striving to deliver high-quality software solutions that improve user experience and performance. I enjoy collaborating closely with UX/UI designers and backend teams in API-first development environments. I am always eager to take on new challenges that expand my skills and contribute to projects that make a significant impact in both the telecom and government sectors.

Carlos Gutierrez

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I am an experienced Front-End Developer based in Madrid, Spain, passionate about building modern, efficient, and accessible web applications. Over the years, I have specialized in technologies such as React.js, Next.js, TypeScript, and GraphQL, striving to deliver high-quality software solutions that improve user experience and performance. I enjoy collaborating closely with UX/UI designers and backend teams in API-first development environments. I am always eager to take on new challenges that expand my skills and contribute to projects that make a significant impact in both the telecom and government sectors.…I am an experienced Front-End Developer based in Madrid, Spain, passionate about building modern, efficient, and accessible web applications. Over the years, I have specialized in technologies such as React.js, Next.js, TypeScript, and GraphQL, striving to deliver high-quality software solutions that improve user experience and performance. I enjoy collaborating closely with UX/UI designers and backend teams in API-first development environments. I am always eager to take on new challenges that expand my skills and contribute to projects that make a significant impact in both the telecom and government sectors.

Available to hire

I am an experienced Front-End Developer based in Madrid, Spain, passionate about building modern, efficient, and accessible web applications. Over the years, I have specialized in technologies such as React.js, Next.js, TypeScript, and GraphQL, striving to deliver high-quality software solutions that improve user experience and performance.

I enjoy collaborating closely with UX/UI designers and backend teams in API-first development environments. I am always eager to take on new challenges that expand my skills and contribute to projects that make a significant impact in both the telecom and government sectors.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Senior Frontend Developer at Inspiranza

May 31, 2025 - August 18, 2025

Migrated a website from WordPress to a modern headless architecture using Contentful (Headless CMS), collaborating with UX/UI designers. Developed responsive, dynamic components with React.js, Next.js 14, and TailwindCSS to support flexible content rendering. Integrated GraphQL queries to efficiently fetch and manage structured content from Contentful, similar to the approach used in Crystallize. Implemented unit tests with Jest to ensure code reliability and maintainability. Optimized frontend performance, accessibility, and user experience in line with modern web standards. Worked within an API-first development approach, coordinating closely with backend teams to define data structures and content models.

Senior Frontend Engineer at Hewlett Packard Enterprise CDS

May 31, 2024 - August 18, 2025

Modernized the frontend of Service Order Manager, a telecom platform streamlining and automating service orders for Internet, Mobile, and TV services. Refactored legacy AngularJS code into reusable, configurable Angular 16 modules, improving maintainability and scalability. Developed a unified Google-style search feature, enhancing data retrieval speed by 35%. Built advanced Angular forms with auto-save and autocomplete to optimize user workflows. Implemented drag-and-drop CSV upload functionality, increasing data onboarding efficiency by 40%. Delivered a Single Sign-On (SSO) solution using Docker, Keycloak, and OpenLDAP, contributing a key differentiator to the product MVP. Ensured high code quality through unit and end-to-end testing (95% test coverage) using Karma, Jasmine, and Cypress. Collaborated in an API-driven development environment, integrating frontend applications with backend services and CouchDB. Contributed to delivering a multi-tenancy platform enabling communication s

Frontend Developer (Contractor) at Accenture

December 31, 2018 - August 18, 2025

Managed and updated the Ministry’s official website using Documentum CMS, ensuring content consistency and compliance with web accessibility standards. Customized web components with HTML, CSS, and JavaScript to align with public sector usability and design guidelines. Collaborated with backend developers and content managers to deliver timely improvements and updates in a regulated environment. Delivered accessible, user-centered digital public services supporting the Ministry’s mission. Gained experience working with enterprise-level CMS platforms and developed a strong understanding of accessibility, reliability, and usability requirements in government websites.

Web Developer at TEKHSOFT

October 31, 2016 - August 18, 2025

Developed an institutional website for Mamoncito (mamoncito.com.do) using DotNetNuke (DNN) CMS on the Microsoft .NET stack. Customized DNN templates and modules with HTML5, CSS3, jQuery, and .NET Framework to align with client branding and functional requirements. Adapted CMS features to meet client-specific needs, enhancing usability and maintainability. Led training sessions and created user documentation to support client content management processes. Gained hands-on experience delivering end-to-end web solutions in Microsoft-based environments.