Available for international remote opportunities Chourio DEV
Miguel Mendoza Chourio Senior Full-Stack Engineer
Lead Developer & Solutions Architect
"Milliseconds matter. From Venezuela to the world."
9+ years building end-to-end products: Enterprise AI platforms with RAG and text-to-SQL, IoT ecosystems with 14+ services (Guachi), offline-first AI POS (Kipu), and high-volume FinTech systems. Remote from Venezuela to US, Germany and LATAM teams.
- ▸ Enterprise AI platforms with RAG and text-to-SQL, IoT ecosystems with 14+ services (Guachi)
- ▸ Offline-first AI POS (Kipu) and high-volume FinTech systems for US, Germany and LATAM teams
Tech stack
Trusted by
Case Studies
Measurable impact on real FinTech, IoT and Enterprise AI products
Guachi — IoT Access Control Ecosystem
Residential and commercial buildings needed a unified access control system integrating mobile app, digital intercom, edge IoT and centralized management — without expensive proprietary hardware.
Kipu — Offline-First AI POS for LATAM
LATAM retail SMBs operate with intermittent connectivity and need a POS that works without internet, with multi-currency, invoice OCR and inventory intelligence — without enterprise ERP complexity.
Andrómeda — Payment API: SOAP to Microservices
Legacy SOAP API with ~60 second response times, preventing real-time integrations with telecom operators and payment gateways. The monolith couldn't scale for millions of monthly transactions.
Enterprise AI Platform with RAG & Zero-Trust
International enterprises needed to query on-premise databases and documents in natural language without exposing credentials or opening inbound ports — meeting strict enterprise security policies.
What my clients say
Verified results on international projects
Miguel led our payment API migration from SOAP to microservices. We went from 60 seconds to under 100ms response time. His FinTech and distributed architecture expertise was key to the project's success.
Andrómeda Ventures
Miguel designed and built our Enterprise AI platform from scratch: RAG, text-to-SQL and zero-trust gateway. He delivered a production-ready product with security guardrails that exceeded our expectations.
Enterprise AI Client
The complete IoT ecosystem — mobile app, 14+ microservices, digital intercom and edge devices — was architected and delivered with enterprise quality. Miguel is a reliable technical partner for complex products.
Guachi
Professional Services
From architecture to production — enterprise AI, FinTech, mobile and IoT
Backend & APIs
High-performance APIs with Node.js, FastAPI, Go and NestJS. Production experience with Express+Prisma (35+ modules), FastAPI+SQLAlchemy, FIX/WebSocket and Redis/BullMQ queues.
- REST, WebSocket and FIX protocol
- FastAPI + Haystack + Qdrant (RAG/SQL)
- PostgreSQL, Supabase and Prisma ORM
Backend & APIs
High-performance APIs with Node.js, FastAPI, Go and NestJS. Production experience with Express+Prisma (35+ modules), FastAPI+SQLAlchemy, FIX/WebSocket and Redis/BullMQ queues.
- REST, WebSocket and FIX protocol
- FastAPI + Haystack + Qdrant (RAG/SQL)
- PostgreSQL, Supabase and Prisma ORM
Frontend & Web
SPAs and SSR sites with React 19, Next.js 16, Astro 6 and TypeScript. Dashboards with MUI, Mantine and Refine; SEO landings with Schema.org.
- Next.js, Astro and React 19
- Flow builders (@xyflow/react)
- TanStack Query and SSR optimization
Frontend & Web
SPAs and SSR sites with React 19, Next.js 16, Astro 6 and TypeScript. Dashboards with MUI, Mantine and Refine; SEO landings with Schema.org.
- Next.js, Astro and React 19
- Flow builders (@xyflow/react)
- TanStack Query and SSR optimization
Mobile & IoT
Production-grade apps with React Native and Expo (100k+ downloads). WebRTC/intercom, BLE beacons, biometrics, offline-first and Raspberry Pi edge software.
- React Native / Expo (EAS, OTA)
- WebRTC, VoIP and push (FCM)
- Bluetooth beacons and geofencing
Mobile & IoT
Production-grade apps with React Native and Expo (100k+ downloads). WebRTC/intercom, BLE beacons, biometrics, offline-first and Raspberry Pi edge software.
- React Native / Expo (EAS, OTA)
- WebRTC, VoIP and push (FCM)
- Bluetooth beacons and geofencing
FinTech & Payments
Payment systems, e-wallets, POS and blockchain. PCI DSS, banking integration (Pago Móvil), Stripe/Mercadopago and non-custodial wallets (Thirdweb).
- Payment APIs at 1000+ TPS
- P2P e-wallets and multi-bank
- Offline-first multi-currency POS
FinTech & Payments
Payment systems, e-wallets, POS and blockchain. PCI DSS, banking integration (Pago Móvil), Stripe/Mercadopago and non-custodial wallets (Thirdweb).
- Payment APIs at 1000+ TPS
- P2P e-wallets and multi-bank
- Offline-first multi-currency POS
Software Architecture
Distributed, zero-trust and offline-first system design. SOAP→microservices migration, on-premise gateway agents and Go Docker orchestration.
- Zero-trust gateway agents
- Offline-first + sync (PGLite/Supabase)
- Monolith → microservices migration
Software Architecture
Distributed, zero-trust and offline-first system design. SOAP→microservices migration, on-premise gateway agents and Go Docker orchestration.
- Zero-trust gateway agents
- Offline-first + sync (PGLite/Supabase)
- Monolith → microservices migration
Enterprise AI & Leadership
End-to-end AI platforms: RAG, text-to-SQL, guardrails, MCP servers and multi-LLM routing. Remote technical leadership and product architecture.
- RAG-SQL, RAG-Docs and agent flows
- Anti-injection and PII guardrails
- MCP servers for AI agents
Enterprise AI & Leadership
End-to-end AI platforms: RAG, text-to-SQL, guardrails, MCP servers and multi-LLM routing. Remote technical leadership and product architecture.
- RAG-SQL, RAG-Docs and agent flows
- Anti-injection and PII guardrails
- MCP servers for AI agents
Ready to transform your project?
Let's talk about how I can help you reach your technical and business goals.
Let's TalkAbout Me
Senior Full-Stack Engineer — FinTech, Enterprise AI & full-stack products
Senior Software Engineer with 9+ years taking products from idea to production. I've architected 5-service Enterprise AI platforms (FastAPI, Haystack, Qdrant, on-premise gateways), complete access control ecosystems with mobile apps, Raspberry Pi IoT and 14+ microservices, and offline-first AI POS SaaS for LATAM. Previously: Kontigo (YC S24), BITA (Germany), Andrómeda Ventures — where I reduced payment APIs from 60 seconds to milliseconds.
Key specialties
Recent experience
Professional Experience
Get In Touch
Have a project in mind? Schedule a call or send me a message.