Full stack web developer with hands-on experience delivering responsive React/Next.js frontends and secure REST APIs with Python (FastAPI) and Node.js (NestJS). I’ve built and deployed production-style platforms end to end, including role-based JWT authentication, PostgreSQL-backed monitoring dashboards, and a security hardening pass covering CORS, rate limiting, IDOR, and transaction-level race conditions. I work well remotely and asynchronously across EEA time zones, with a decade of prior international experience across five countries. I enjoy designing reliable solutions—using structured outputs for AI integrations—while keeping quality, security, and maintainability at the core.

Enrique Sánchez García

Full stack web developer with hands-on experience delivering responsive React/Next.js frontends and secure REST APIs with Python (FastAPI) and Node.js (NestJS). I’ve built and deployed production-style platforms end to end, including role-based JWT authentication, PostgreSQL-backed monitoring dashboards, and a security hardening pass covering CORS, rate limiting, IDOR, and transaction-level race conditions. I work well remotely and asynchronously across EEA time zones, with a decade of prior international experience across five countries. I enjoy designing reliable solutions—using structured outputs for AI integrations—while keeping quality, security, and maintainability at the core.

Available to hire

Full stack web developer with hands-on experience delivering responsive React/Next.js frontends and secure REST APIs with Python (FastAPI) and Node.js (NestJS). I’ve built and deployed production-style platforms end to end, including role-based JWT authentication, PostgreSQL-backed monitoring dashboards, and a security hardening pass covering CORS, rate limiting, IDOR, and transaction-level race conditions.

I work well remotely and asynchronously across EEA time zones, with a decade of prior international experience across five countries. I enjoy designing reliable solutions—using structured outputs for AI integrations—while keeping quality, security, and maintainability at the core.

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Experience Level

Expert
Expert
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Expert
Expert
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Expert
Intermediate
Intermediate
Beginner
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Language

Spanish; Castilian
Fluent
English
Advanced

Work Experience

Full Stack Developer — EcoSpot (Location-Based Web/Mobile App)
January 1, 2026 - Present
Shipped a map-based application locating nearby recycling points. Resolved backend/database issues including a duplicate primary-key problem and fixed a UI issue caused by an infinite re-render loop in the map component.
Full Stack Web Developer — HEXGO (Geolocation Platform with Real-Time Features)
January 1, 2025 - Present
Developed a secure FastAPI REST API backed by PostgreSQL with authenticated user sessions and real-time state updates pushed to clients via Firebase notifications. Completed a security hardening pass: corrected CORS misconfiguration, added rate limiting, remediated an IDOR vulnerability exposing other users’ resources, and removed a concurrency race condition using SERIALIZABLE transaction isolation. Deployed and maintained the backend in production on Render, including credential rotation and persistent media storage.
Full Stack Web Developer — ShiftSmart AI (B2B Workforce Management Platform)
January 1, 2025 - Present
Built a responsive Next.js 14 / TypeScript frontend and a NestJS REST API for B2B workforce management. Implemented user access control and management dashboards for staff, schedules, and assignments. Designed the data layer using Prisma over PostgreSQL and integrated an external AI API using structured-output tooling to generate rosters reliably rather than as free text.
Full Stack Developer at HEX GO Studio
January 1, 2024 - Present
Designed and implemented a REST API with FastAPI for authentication, users, captures and rankings; implemented JWT authentication and password hashing with bcrypt; built the geospatial gameplay layer using H3 hexagonal indexing and Shapely; developed the cross-platform mobile application using Flutter; integrated Mapbox maps and H3 rendering; implemented background GPS tracking and distance calculations; implemented push notifications with Firebase Cloud Messaging.

Education

Higher Technician in Multiplatform Application Development (EQF Level 6) at Cesur Formación
January 1, 2024 - December 31, 2026
Higher Technician in Multiplatform Application Development (DAM) (EQF Level 5) at Cesur Formación, Madrid
January 11, 2030 - January 1, 2026

Qualifications

Category B Driving License
January 11, 2030 - March 16, 2026
Especialista FP — Artificial Intelligence & Big Data
September 1, 2026 - August 12, 2026

Industry Experience

Software & Internet, Gaming, Media & Entertainment, Professional Services, Education