I will build secure backend apis with nodejs and express


About this gig
I build secure, reliable backend systems using Node.js, Express, and PostgreSQL.
With hands-on experience developing full backend systems, including JWT authentication with refresh tokens, role-based access control, and IDOR-prevention middleware, I focus on writing clean, maintainable code that follows security best practices from day one.
What I can help you with: REST API design and development, database design and optimization with PostgreSQL, user authentication and authorization systems, backend architecture for web applications, bug fixes and code reviews.
I currently work as a Data Protection Officer for a professional regulatory council, where I also built and maintain internal management systems from scratch, so I understand both the technical and compliance side of building software that handles real user data responsibly.
I communicate clearly, deliver clean documented code, and I'm happy to explain technical decisions in plain language if you're not a developer yourself.
Let's discuss your project, send me a message before ordering if you have specific requirements!
Get to know Andre Carvalho
Backend Developer and LGPD Compliance Specialist
- FromBrazil
- Member sinceSep 2026
- Avg. response time2 hours
Languages
Portuguese, English

_thkeut.jpg)