I will build or fix API integrations for payments or authentication with node and java

M
michaelrod_uy
M
michaelrod_uy
Michael
Alcune informazioni sono riportate in lingua inglese.
build or fix API integrations for payments or authentication with node and java
Schermo intero
build or fix API integrations for payments or authentication with node and java

Informazioni su questo servizio

If you need to integrate payments, authentication or external APIs into your system, I can build clean and reliable backend endpoints.

I work with Node.js, Express and Java for small, focused API tasks.

I can help with:

  • Payment integrations (Mercado Pago, Stripe, PayPal)
  • Webhooks setup and troubleshooting
  • OAuth / JWT authentication
  • API endpoints (CRUD, services, utilities)
  • Server-to-server integrations
  • Fixing broken or unstable APIs
  • Backend debugging

All integrations include proper error handling and best practices.

  • Expertise

    • Algoritmi e strutture dati
    • Performance
    • Sicurezza
    • Design
    • Controllo della fonte

  • Linguaggio di programmazione

    • Java

  • Framework front end

    • React.js

  • Framework back end

    • Spring

Scopri di più su Michael

Michael

Full Stack Developer, Java, React, PostgreSQL, n8n

  • DaUruguay
  • Membro danov 2025
  • Tempo di risposta medio11 ore

  • Lingue

    Spagnolo, Inglese
Full Stack Developer con +10 años creando soluciones para pymes y organizaciones. Desarrollé un sistema empresarial que lleva 10 años en producción y actualmente evolucionó su versión CRM/ERP. También mantengo un sistema de membresías con 8 años de uso continuo, hoy en React/Next. Trabajo con Java/Spring Boot, React, PostgreSQL, Docker, AWS y Keycloak. Me enfoco en software estable, claro y orientado al negocio. Disponible para proyectos remotos.

Altri servizi della categoria Sviluppo di software offerti da me

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