Dayerlin Dev

Dayerlin Bustamante

Senior Frontend Software Engineer
Madrid - Spain

Specialized in Angular and TypeScript with experience designing scalable frontend architectures, reusable component libraries, and Design Systems. Currently focused on modern Angular (Signals), web performance, accessibility, and developer experience. Building maintainable, high-impact applications at QBI Solutions.day.devprograms@gmail.com

Dayerlin Bustamante - Senior Frontend Engineer

Collaboration Team-oriented with initiative and decision-making, based on effective communication

Agility Agile methodologies with short sprints focused on needs and objectives.

Research Analyzing different platforms and approaches for problem resolution

Focus Planning and executing initiatives for professional growth.

Hard Skills
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Frontend

Primary focus on frontend development, emphasizing direct connection with the product and end user

Angular Typescript Sass Tailwind Vue Astro
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Backend

Complementary backend tools supporting a holistic development approach

Node.js Php
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Tools

Development workflow with version control, online repositories and package management

Git Github Bitbucket Azure npm
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Design UX/UI

UX/UI design focused on improving user experience and visual interaction

Figma
Experience

Architected and developed a reusable component library distributed as an npm package, establishing the foundation for shared UI development across the platform. Built Angular 22 components leveraging Signals and modern architecture patterns. Contributed to the Design System by standardizing components, documenting best practices and defining shared guidelines. Implemented unit and integration testing with Jasmine and Karma (migrating to Vitest). (Madrid, QBI Solutions - Mar 2025 - Present)

Developed and maintained frontend features for high-traffic digital products, optimizing performance, usability and SEO. Designed reusable components and scalable solutions, contributing to architecture initiatives and code reviews. Led the migration of the core mortgage application from Angular 6 to Angular 17. (Madrid, Rastreator - Jun 2022 - Mar 2025)

Developed and validated web platforms aligned with user and business needs through functional analysis and quality assurance. Implemented SEO and frontend performance improvements focused on visibility, page speed and user experience. (Buenos Aires, Ellmann & Asociados - Jun 2019 - Oct 2021)

Co-founded a digital venture focused on web products, UX/UI design and frontend engineering. Led the design and development of websites, landing pages and web applications. Owned product delivery end-to-end, combining Figma design, frontend implementation and technical decision-making. (Buenos Aires, Calarium - 2020 - 2023)