Pau Hermosilla del Rio — Software Engineer

Full stack developer with 4+ years building a real-estate SaaS end to end: Laravel and Vue on the web, SQL tuning and performance on the data side. On the side I build Voley Stats, a volleyball stats app for iOS, Android and the web.

Based in Valencia, Spain / Remote. Own it end to end.

Experience

• Full Stack Developer at Viviendea (Aug 2025 - Present)

  One of the two developers on the team, jointly responsible for the whole product end to end.

  • Main contributor to the core Laravel + Inertia + Vue 3 monolith (650+ commits)
  • Built the backend of an AI chat assistant on AWS Lambda with the OpenAI API
  • Built an internal analytics dashboard with Next.js

• Full Stack Developer at Viviendea (Aug 2023 - Jul 2025)

  Worked across the full stack as the go-to developer for SQL and performance optimization.

  • Owned the team's SQL and query optimization work
  • Authored 80+ database migrations evolving the production schema

• Junior Backend Developer at Viviendea (Aug 2022 - Jul 2023)

  General backend development.

• Frontend Developer (Intern) at Viviendea (Apr 2022 - Jul 2022)

  Internship on the frontend.

Projects

• Voley Stats

  Overpriced volleyball stats apps with poor UX. Coaches needed a simple, affordable tool to track player performance and game analytics during live matches.

  SwiftUI, Kotlin, Vue, Firebase, Supabase, SQLite

• Tapvale

  Gift vouchers are either impersonal gift cards or notes that get lost. Tapvale sells NFC stickers preloaded with vouchers you write yourself, so the gift is a physical object the receiver taps with their phone.

  Next.js, TypeScript, Supabase, Stripe, Apple Wallet, next-intl

• SkyMates

  Messaging apps stop working exactly where you need them: planes, festivals, the mountains. SkyMates is a peer-to-peer messenger that talks device to device over Multipeer Connectivity, with no internet and no server in between.

  SwiftUI, SwiftData, MultipeerConnectivity

• Voleibol Valencia Store

  A volleyball club was taking kit orders over WhatsApp and spreadsheets. This is their online store, with a product catalogue and order tracking they manage themselves.

  Vue, PocketBase

Tech stack

• languages: PHP, TypeScript, JavaScript, SQL, Swift, Kotlin, Python
• backend: Laravel, Inertia.js, Node.js, AWS Lambda, OpenAI API
• frontend: Vue 3, Pinia, React, Next.js, Tailwind CSS
• mobile: SwiftUI, Jetpack Compose
• databases: MySQL, PostgreSQL, Redis, SQLite, Room, Supabase, Firestore
• infrastructure: AWS, Docker, Vercel, GitHub Actions
• observability: Sentry

Links

• GitHub
• LinkedIn