Open to opportunities

Adrián Rangel

@radriann21

Message

Full-stack builder. I build robust Frontend and Backend architectures to be fast, secure, and scalable web products.

Venezuela

Message

What I'm looking for

I’m looking for a role where my technical background can directly drive product growth and efficiency. My goal is to bring immediate value to the team from day one, focusing heavily on web performance, seamless API integrations, and ensuring product stability through rigorous testing within a fast-paced, agile environment.

I'm a FullStack Dev focused on performance and stability. I build fast and predictable interfaces (Next.js/Redux) backed by a rigorous quality standard. I recently reduced load times (LCP) by 20%, and by implementing 80% test coverage (Cypress/Jest), I decreased production errors by 15%.

I regularly contribute to develop solutions that allows to implement complex workflows into apps that works amazingly. From structuring scalable NestJS backends and implementing high-performance data caching, to seamlessly integrating complex APIs and AI models, I fluently handle the entire product lifecycle. I'm ready to bring this level of engineering rigor to your technology stack.

Experience

Work history, roles, and key accomplishments

Frontend Web Developer

Sempiterno Group

Mar 2025 - Jan 2026 (10 months)

Integrated multiple backend REST services and built reliable full-stack data flows for end users. Refactored with design patterns to reduce technical debt and increase development speed by 15% for new features.

REST APIs API Integration Full Stack Refactoring Design Patterns UX UI Technical Debt Reduction

Desarrollador Frontend Junior

Municipalidad de Miranda

Feb 2024 - Feb 2025 (1 year)

Developed a core employee management application, reducing data processing and validation time by at least 10% by optimizing app workflows. Redesigned UI and implemented robust CSS architectures using BEM and Styled Components to improve maintainability and future change delivery.

Frontend Development BEM styled components CSS Architecture Performance Optimization Workflow Optimization Maintainable CSS

Desarrollador Frontend Junior

Quasar

Apr 2023 - Aug 2023 (4 months)

Built a web interface for small-business inventory and import management, improving operational efficiency through a digital platform. Migrated to Astro and reduced the application’s initial load time (LCP) by up to 30%, significantly improving user experience and performance.

Astro Web Performance Migration Inventory Management Import