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I’m Adrià Uson Delso, a fullstack web developer based in Barcelona, focused on building modern, performant web applications with React, Next.js, TypeScript, and Node.js. I enjoy owning end-to-end systems—from Figma to production—designing solid data models, clean backend APIs, and responsive frontend architectures that scale with real product needs. In my recent work, I’ve built and led two systems end to end at Enso Co-living: an owner-facing PMS and an AI multilingual content pipeline using structured LLM outputs and semantic deduplication with vector embeddings. I also worked on TEA Care as a frontend tech lead, integrating a Next.js UI with a .NET backend through a secure BFF pattern, and I maintain a personal e-commerce project where I implemented JWT split-token authentication, route-specific rendering strategies, and testable fullstack architecture.…I’m Adrià Uson Delso, a fullstack web developer based in Barcelona, focused on building modern, performant web applications with React, Next.js, TypeScript, and Node.js. I enjoy owning end-to-end systems—from Figma to production—designing solid data models, clean backend APIs, and responsive frontend architectures that scale with real product needs. In my recent work, I’ve built and led two systems end to end at Enso Co-living: an owner-facing PMS and an AI multilingual content pipeline using structured LLM outputs and semantic deduplication with vector embeddings. I also worked on TEA Care as a frontend tech lead, integrating a Next.js UI with a .NET backend through a secure BFF pattern, and I maintain a personal e-commerce project where I implemented JWT split-token authentication, route-specific rendering strategies, and testable fullstack architecture.

ADRIÀ USÓN DELSO

Full Stack Developer, Web Developer, Front-End Developer, +2

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I’m Adrià Uson Delso, a fullstack web developer based in Barcelona, focused on building modern, performant web applications with React, Next.js, TypeScript, and Node.js. I enjoy owning end-to-end systems—from Figma to production—designing solid data models, clean backend APIs, and responsive frontend architectures that scale with real product needs. In my recent work, I’ve built and led two systems end to end at Enso Co-living: an owner-facing PMS and an AI multilingual content pipeline using structured LLM outputs and semantic deduplication with vector embeddings. I also worked on TEA Care as a frontend tech lead, integrating a Next.js UI with a .NET backend through a secure BFF pattern, and I maintain a personal e-commerce project where I implemented JWT split-token authentication, route-specific rendering strategies, and testable fullstack architecture.…I’m Adrià Uson Delso, a fullstack web developer based in Barcelona, focused on building modern, performant web applications with React, Next.js, TypeScript, and Node.js. I enjoy owning end-to-end systems—from Figma to production—designing solid data models, clean backend APIs, and responsive frontend architectures that scale with real product needs. In my recent work, I’ve built and led two systems end to end at Enso Co-living: an owner-facing PMS and an AI multilingual content pipeline using structured LLM outputs and semantic deduplication with vector embeddings. I also worked on TEA Care as a frontend tech lead, integrating a Next.js UI with a .NET backend through a secure BFF pattern, and I maintain a personal e-commerce project where I implemented JWT split-token authentication, route-specific rendering strategies, and testable fullstack architecture.

Available to hire

I’m Adrià Uson Delso, a fullstack web developer based in Barcelona, focused on building modern, performant web applications with React, Next.js, TypeScript, and Node.js. I enjoy owning end-to-end systems—from Figma to production—designing solid data models, clean backend APIs, and responsive frontend architectures that scale with real product needs.

In my recent work, I’ve built and led two systems end to end at Enso Co-living: an owner-facing PMS and an AI multilingual content pipeline using structured LLM outputs and semantic deduplication with vector embeddings. I also worked on TEA Care as a frontend tech lead, integrating a Next.js UI with a .NET backend through a secure BFF pattern, and I maintain a personal e-commerce project where I implemented JWT split-token authentication, route-specific rendering strategies, and testable fullstack architecture.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

Catalan; Valencian

Fluent

English

Advanced

Work Experience

Frontend Tech Lead at TEA Care (Final Degree Project)

January 1, 2026 - Present

Led frontend architecture and backend integration for a therapeutic management platform for ASD caregivers. Built a Next.js 16 + React 19 frontend with a feature-based structure, route groups, a BFF proxy session pattern (HttpOnly cookies), and role-based rendering (carer/therapist/admin). Implemented a documented design system and component library with responsive breakpoints, and integrated with a .NET Core + PostgreSQL backend using secure server actions and JWT protection. Coordinated the development team and set frontend architecture and engineering conventions (GitFlow, PR standards, ESLint/Prettier, onboarding).

Full Stack Developer at Vibe Commerce (Personal Project)

January 1, 2025 - January 1, 2026

Developed an end-to-end e-commerce platform with a modular, scalable architecture using React/Next.js and a Node.js + TypeScript Express API over MongoDB. Implemented a REST API with Repository pattern and SOLID principles, plus unit/integration testing with Jest. Built JWT auth using split-token strategy (access token in headers, refresh token in HttpOnly secure cookies) with automatic token renewal. On the frontend, implemented feature-based modular structure, route-specific rendering strategies (SSG for catalog pages and SSR for dynamic views), lazy loading, and component/hook testing with Vitest.

React Developer at Enso Co-living

September 1, 2024 - Present

Built and owned two end-to-end systems: an owner-facing Property Management System (PMS) and a multilingual AI content pipeline for a blog. For the PMS, I designed the onboarding wizard and owner referral flow, including real-time updates via Supabase Real-time WebSocket subscriptions, and handled frontend architecture plus PostgreSQL schema design on Supabase. For the content pipeline, I implemented a weighted sampling engine, integrated LLMs with strict JSON-schema structured outputs and business validation against DB whitelists, and added semantic deduplication using vector embeddings (pgvector, cosine similarity) with market-aware thresholds. I also led a Core Web Vitals audit and improved performance with a clear server/client boundary, image optimization, and route/metadata strategies.

Full Stack Developer (Training) at La Salle BCN

January 1, 2023 - January 1, 2025

Training focused on modern web development with React and Next.js (SSR/SSG/ISR), Node.js + TypeScript APIs, .NET Core, PHP/Laravel, and SQL/NoSQL databases. Worked with Docker, AWS EC2, and testing with Vitest/Jest, applying TDD and SOLID/clean code practices.

IT Recruiter at Capitole Consulting

February 1, 2018 - March 1, 2023

Handled end-to-end recruitment for Frontend, Full Stack, QA, and IT/financial profiles across both companies over five years. Managed the full cycle: requirement gathering with business managers, Boolean search, CV screening, technical interviews, and reporting. Served as a specialist for Frontend Expert (2022) and QA Expert (2019–2023), gaining deep understanding of how modern engineering teams are structured and assessed.