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Fiverr Pro
English
$
USD
I will build or fix your nodejs rest API with express or nestjs
Diego Penaranda
About this gig
Need a reliable backend for your app, or new endpoints added to an existing one? I'll build clean, secure APIs that your frontend and your future developers will thank you for.
I'm a senior software engineer with 5+ years of experience building backends with Node.js, Express, NestJS and GraphQL, including systems for healthcare and telecom. I'm a former contractor at Apple and currently a tech lead at a US SaaS company.
I can build or fix:
- REST APIs with Express or NestJS
- Authentication (JWT, sessions, OAuth)
- Databases: PostgreSQL, MySQL, MongoDB
- Third-party integrations: payments, email, external APIs
- Validation, error handling and logging
- Docker setup and API documentation
How it works:
- Message me with what you need before ordering.
- I confirm scope, price and delivery date.
- I deliver tested, documented code via pull request.
Get to know Diego Penaranda
Diego Penaranda
Software Engineer
- FromBolivia
- Member sinceSep 2026
Languages
English, Spanish, French
I am a software developer with over 5 years of experience and a strong background in JavaScript, React, Angular, TypeScript, and Node.js, complemented by extensive experience in cloud solutions using AWS. I have worked across various industries including healthcare, finance, and telecommunications, thriving in collaborative environments to deliver meaningful impact.
Other Software Development Services I Offer
FAQ
Can you work on my existing backend?
Yes, I add features or fix issues in your current codebase.
Do you deploy the API?
I can set up Docker and help deploy it to your server or cloud provider. Message me for details.
Which database do you use?
Whatever your project needs: PostgreSQL, MySQL or MongoDB.
