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Jhon MagdalenaJM

Jhon Magdalena

Construyo agentes de IA autónomos

€640/day
Vigo, ES
8-15 years

Average response time: 1 hour

About Jhon

AI Engineer & Senior Backend Developer — Go, agentes autónomos, MCP


10+ años de experiencia construyendo backends en producción. Últimos 18 meses especializado en sistemas de IA: agentes autónomos, integraciones MCP (Model Context Protocol), pipelines RAG,
coaches conversacionales en tiempo real.

Lo que hago bien:
  • Backends Go de alto rendimiento (Gin, REST, streaming, WebSockets)
  • Arquitecturas de agentes con LLMs (Claude, GPT-4, modelos open-source)
  • Integraciones MCP — servidores y clientes
  • Bases de datos: MongoDB Atlas (failover, replica sets), PostgreSQL
  • Infraestructura: Docker, despliegues continuos, observabilidad

Cómo trabajo:

Alcance acotado, entregables verificables, código que pasa a producción — no prototipos. Sin sobre-ingeniería, sin abstracciones prematuras, sin promesas que no pueda mantener.

Disponibilidad: proyectos de 1-3 meses, remoto, dedicación parcial o completa según necesidad.

Hablo español nativo, inglés profesional.
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • CHITA CLOUD
    CEO & Founder
    TELECOMMUNICATIONS
    January 2025 - Today (1 year and 5 months)
    Vigo, Spain
    • ● Optimized freelancer-first cloud computing platform
    • ● Developed infrastructure using Go and modern web technologies
    • ● Integrated deployment automation and monitoring systems
    • ● Remote Environment: Built and maintained entire platform working remotely
    Golang Python
  • DIVILO FINTECH S.L.
    Senior Go Engineer
    March 2025 - June 2025 (3 months)
    Plataforma de acquiring y SoftPOS para clientes como Cabify y ERPs de gran consumo (Coca-Cola, Heineken).

    Desarrollo en Go del Acquiring Management Back: payment orders, settlements, refunds, chargebacks, terminales y commerces multi-tenant.

    Arquitectura serverless en AWS (Lambda, API Gateway, EventBridge, RDS PostgreSQL, DynamoDB, ECS, X-Ray) desplegada con CloudFormation.

    Diseño event-driven y DDD, OpenAPI como contrato, >84 % de cobertura de tests y CI/CD end-to-end.

    Integración con el SDK Android de SoftPOS (Tap to Phone) — Kotlin, Koin/Hilt — colaborando con el equipo móvil en el flujo de pago en dispositivo.
  • SERQUO SOFTWARE S.A.
    Senior Software Engineer
    January 2023 - March 2025 (2 years and 2 months)
    • ● Developed robust backend applications using Spring Boot
    • ● Built frontend applications using React.js
    • ● Designed and implemented automated testing frameworks with Selenium
    • ● Collaborated in cross-functional teams delivering scalable microservices

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Education

  • Senior Technician in Web
    I.E.S. de Teis
    2017
    Senior Technician in Web
  • Senior High School
    I.E.S. Politécnico de Vigo
    2014
    Senior High School

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