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I will build a secure java spring boot rest api or backend for your app
Pternali
About this gig
Need a REST API or backend that actually works in production, not just in a demo?
AI tools can generate code fast. But turning that code into something secure, scalable, and reliable still takes real engineering, and that's what I bring.
I'm a Backend Developer with 7+ years of experience in Java, Spring Boot, REST APIs, Kafka, PostgreSQL, Docker and Kubernetes. At IBM, I built enterprise systems handling ~2,000 messages/second with ~99.9% uptime.
What you get:
- Clean, well-structured REST API in Spring Boot
- Secure authentication (JWT / Spring Security)
- Database integration (PostgreSQL, MySQL, MongoDB)
- Proper error handling & input validation
- Fully commented, production-ready source code
- API documentation (Swagger/OpenAPI) on request
Also great if:
- Your AI-generated backend is buggy, slow, or insecure
- You need debugging, optimization, or a second pair of expert eyes
- You're scaling from prototype to real users
Let's build something that holds up under real traffic, not just in a demo.
Message me before ordering if your project has specific requirements.
Get to know Pternali
Pternali
Senior Software Engineer
- FromItaly
- Member sinceMar 2023
- Avg. response time1 hour
Languages
English, Italian
I’m a Backend & Full-Stack Web Developer with 7+ years of experience in Java, Spring Boot, React, REST APIs, Kafka, PostgreSQL, Docker and Kubernetes. At IBM, I worked on enterprise applications from requirements to production. I’ve built systems handling ~2,000 messages/sec with ~99.9% uptime.
AI can generate code. I bring what production software still needs: architecture, problem-solving, debugging, performance, reliability and sound engineering decisions. I use AI to move faster — while making sure the final product is actually solid.
Other Software Development Services I Offer
FAQ
My code was generated by ChatGPT or another AI tool, but it doesn't work properly. Can you fix it?
Yes, this is actually one of the most common requests I get. I'll review the existing code, identify what's broken or poorly structured, and fix it properly, or rebuild the parts that need it. Send me the code before ordering so I can give you an accurate estimate.
What technologies do you work with besides Spring Boot?
My main stack is Java, Spring Boot, Spring Security, REST APIs, PostgreSQL, MySQL, MongoDB, Kafka, Docker and Kubernetes. I also work with React on the frontend if you need a full-stack solution. If your project uses something slightly different, message me and I'll let you know if I can help.
Do I get full ownership of the source code?
Yes. Once the project is delivered and the order is complete, you own 100% of the code with no restrictions. I don't reuse or resell client code.
Can you work with my existing codebase instead of starting from scratch?
Absolutely. Share your repository or current code before ordering, and I'll assess it so we agree on scope and timeline before starting.
What do you need from me to get started?
Ideally a clear description of what the API or backend needs to do, your database preference if you have one, and any existing code or documentation. If your requirements aren't fully defined yet, that's fine too, I can help clarify them during our chat.
Do you handle deployment, or just development?
I deliver production-ready code and can containerize it with Docker. Full deployment to your cloud provider (AWS, Azure, GCP, etc.) can be arranged as a custom offer, just message me with details.
My project is bigger than what's listed in the packages. Can you still help?
Yes. The packages cover common scopes, but I regularly build larger, custom backend systems. Send me your requirements and I'll put together a tailored offer with accurate pricing and timeline.
