Freelancer profile translated to English.
Back to original languageAbout Guillermo
I help companies and startups develop, maintain, and improve modern web applications, especially with Angular and TypeScript. I can handle new features, responsive interfaces, API integration, bug fixing, refactoring, and performance optimization.
I also work with Node.js and Python when the project requires backend tasks, automation, or data processing. I differentiate myself by combining frontend experience with AI-assisted development workflows, using Codex, OpenCode, GitHub Copilot, agents, skills, and MCP to move quickly without losing control over code quality.
I can collaborate on evolutionary developments, maintenance of existing applications, migrations, prototypes, internal tools, and end-to-end web projects.
Spanish
Native or bilingual
English
Conversational
Catalan
Native or bilingual
Italian
Basic
Remote only
Primarily works remotely
Experience
- TICTAP SIMPLY CONNECT,FRONTEND WEB DEVELOPERJune 2025 - Today (1 year and 1 month)Barcelona, SpainDevelopment and maintenance of web applications, primarily focused on frontend development with Angular and TypeScript. Creation of dynamic interfaces, implementation of complex functionalities, performance optimization and issue resolution. Occasional participation in backend development with Node.js, particularly for API integration, data processing and application support. Extensive use of AI-assisted development workflows with Codex, OpenCode, GitHub Copilot, agents, coordinators, skills and MCP tools. Technologies: Angular, TypeScript, Node.js, Docker, Nginx, Git, Codex, OpenCode, GitHub Copilot and MCP. Development and maintenance of web applications using Angular, AngularJS and TypeScript. Creation of dynamic interfaces, implementation of complex functionalities, performance optimization, code maintenance and issue resolution. Collaboration within an Agile team using Git and Trello for task planning and version control. Technologies: Angular, AngularJS, TypeScript, JavaScript, HTML, CSS, Git, GitHub Copilot and Trello. Development and maintenance of responsive web applications and interactive user interfaces. Implementation of frontend components, integration with backend services, issue resolution and performance improvements to enhance usability and user experience. Technologies: AngularJS, TypeScript, HTML, CSS and Git.
- TICTAP SIMPLY CONNECT,FRONTEND WEB DEVELOPERSOFTWARE PUBLISHINGAugust 2021 - August 2024 (3 years)Barcelona, SpainDevelopment and maintenance of web applications usingAngular, AngularJS and TypeScript. Creation of dynamicinterfaces, implementation of complex functionalities,performance optimization, code maintenance and issueresolution.Collaboration within an Agile team using Git and Trello fortask planning and version control.Technologies: Angular, AngularJS, TypeScript, JavaScript,HTML, CSS, Git, GitHub Copilot and Trello.
- INORME S.L.,JUNIOR FRONTEND WEB DEVELOPERAugust 2020 - August 2021 (1 year)Barcelona, SpainDevelopment and maintenance of responsive webapplications and interactive user interfaces. Implementationof frontend components, integration with backend services,issue resolution and performance improvements to enhanceusability and user experience.Technologies: AngularJS, TypeScript, HTML, CSS and Git.
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Education
- MASTER'S DEGREEUNIBA - International University Center of Barcelona2019MASTER'S DEGREE
- FINAL DEGREE PROJECTFaculty of Electrical Engineering, Mathematics, and Computer Science2007FINAL DEGREE PROJECT