I will develop scalable backend systems and rest apis with nodejs python or java


About this gig
I design and build reliable backend systems and REST APIs using Node.js, Python, and Java. With 18+ years of experience in software architecture and SRE for critical platforms, I focus on clean code, secure authentication, database design, and scalable architecture.
What I can help you with:
- REST API design and development
- Database integration (PostgreSQL, MongoDB, Redis, Oracle)
- Authentication and authorization (JWT, OAuth2)
- Microservices architecture
- Third-party API integrations
- Code documentation and testing
I have hands-on experience implementing secure, production-grade platforms including GitLab with LDAP, CI/CD pipelines, and modernizing monolithic systems into modular REST APIs. Let's build something reliable together.
Get to know Bernardino R
Arquitecto de Software y SRE, Docker Kubernetes CI CD
- FromChile
- Member sinceSep 2022
- Avg. response time1 hour
Languages
Spanish, English
FAQ
What technologies do you use for backend development?
I work with Node.js, Python, and Java for backend systems, integrating with PostgreSQL, MongoDB, Redis, and Oracle databases. I build secure REST APIs with JWT/OAuth authentication and design microservices architectures tailored to your business needs.
How do you ensure API security and scalability?
I implement industry best practices including JWT/OAuth authentication, input validation, rate limiting, and encrypted data handling. For scalability, I design with microservices, caching layers, and load-balanced architectures ready for production traffic.

