David San Luis
David San Luis Aguirre

David San Luis Aguirre

Fullstack Developer · Angular · NestJS · TypeScript · AWS

Fullstack Developer with 3+ years of experience building production web and mobile applications. Currently developing an AI-powered LegalTech SaaS platform, integrating LLM APIs with scalable cloud infrastructure. I’ve shipped cross-platform apps to both the iOS App Store and Google Play.

3+Years of experience
500+Users in production
2Apps in App Stores

Experience

Grace AI — LegalTech SaaS PlatformCurrent project
QRSof · Feb 2023 – Present · Remote

Fullstack development of an AI-powered legal platform that automates document processing and legal analysis. Integration of LLM APIs with NestJS backend, OCR-based extraction and legal drafting generation. AWS infrastructure (Lambda, S3, Cognito) with multi-tenant architecture.

AngularNestJSTypeScriptAWSPrismaPostgreSQLLLM APIs
CEN — Cross-Platform Mobile ERP AppApr 2024 – Jun 2025
QRSof · Remote

Built and published a complete ERP app on iOS App Store and Google Play for 300+ employees. Offline-first architecture with SQLite and NgRx. Managed the full release cycle.

AngularIonicSQLiteNgRxCapacitoriOSAndroid
Slird — Professional NFC NetworkingApr 2023 – Sep 2024
QRSof · Remote

Fullstack platform that digitized professional networking with NFC technology. Frontend with Angular/Ionic, backend with Scala (Akka HTTP + Slick). Built a component library that reduced frontend development effort by 70%.

AngularIonicScalaAkka HTTPPlay FrameworkPostgreSQLNFC

Tech Stack

Frontend

Angular · React · Next.js · NgRx · Tailwind CSS

Backend

NestJS · Node.js · Scala · Akka HTTP · Play Framework

Mobile

Ionic · Capacitor · iOS · Android

Cloud & Data

AWS · Firebase · Prisma · PostgreSQL · Docker

AI / ML

LLM APIs · OCR · Claude Code · AI-assisted dev

Architecture

Microservices · Clean Architecture · Offline-first · Scrum