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I will build secure spring boot rest apis sql mongodb jwt swagger
Aleksandar K.
About this gig
Secure Spring Boot REST APIs with SQL/MongoDB, JWT & Swagger/OpenAPI 3.
I build clean, documented backends with Postman tests, clear error handling, and optional Docker & deploy notes.
What you get
- Spring Boot 3 (Java 17/21), layered architecture
- SQL (PostgreSQL/MySQL) or MongoDB integration
- DTO/validation, pagination, logging & exception handling
- Swagger/OpenAPI 3 + Postman collection
- Clean, commented source code
Packages
- Basic ($20) Up to 5 endpoints + SQL integration + Postman.
- Standard ($50) Up to 10 endpoints, SQL or MongoDB, JWT/basic auth, Swagger docs.
- Premium ($80) Up to 20 endpoints, advanced DB, JWT security, Swagger + Dockerfile & deploy guide.
Before ordering
Send your use-cases, endpoint list, DB choice, and auth needs. I'll suggest the leanest plan for your deadline and budget.
Get to know Aleksandar K.
Aleksandar K.
Java AI Automation Engineer Spring Boot APIs GPT chatbots OCR
- FromNorth Macedonia
- Member sinceAug 2025
Languages
English, Macedonian
I’m a Java & AI Automation Engineer. I build secure, well-documented REST APIs with Spring Boot (PostgreSQL/MySQL/MongoDB), custom GPT/ LangChain chatbots with RAG and API/DB integrations, and engineered prompts/workflows for consistent results. I also deliver precise PDF → Word/Excel conversions with OCR that keep layout, tables, and styles. You’ll get clean code, clear docs, Postman + Swagger, and simple deploy guides. Fast delivery, privacy-minded handling, and responsive communication. I focus on delivering high-quality results on time, with clear communication and minimal hassle for you.
My Portfolio
FAQ
What do you need from me to get started?
I’ll need your project requirements (what the API should do, how many endpoints, and your database type). If you already have a database or API design, please share it.
Will I get documentation for the API?
Yes. Every delivery includes clean code with comments, and I can also provide a Postman collection and Swagger/OpenAPI documentation in Standard & Premium packages.
Do I need to provide hosting?
No, I develop and deliver the code ready to run locally. If you need hosting setup or deployment support, I can provide it as an extra service.
Can you integrate authentication (login, JWT, etc.)?
Yes. Authentication and security features are included in Standard and Premium packages.
Will the code be scalable and production-ready?
Absolutely. I follow industry best practices, use Spring Boot with JPA/Hibernate, and ensure your API is secure, clean, and easy to maintain.
Can you use both SQL and NoSQL databases?
Yes. I can integrate APIs with MySQL, PostgreSQL, MongoDB, or SQLite depending on your needs.
What if I need more endpoints than the package allows?
No problem! You can either purchase the next tier or request a custom order for extra endpoints.
