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Fiverr Pro
English
$
USD
I will develop scalable java spring boot rest apis and microservices
Jaxongir M
About this gig
Need a reliable backend that does not fall over under load? I am a senior Java developer with 6+ years of commercial experience (since 2020) building high-load enterprise systems (100K+ RPS) for e-commerce, telecom and industrial companies.
What I can do for you:
- REST APIs and microservices with Java 21/25 and Spring Boot (new projects on Spring Boot 4; existing 2.x/3.x projects supported)
- PostgreSQL / Oracle database design, JPA/Hibernate, query optimization
- Authentication and authorization: JWT, OAuth2, Keycloak
- Kafka, Redis, Docker, Kubernetes
- Bug fixing, refactoring legacy code, performance tuning
- Swagger/OpenAPI documentation and unit/integration tests
How I work:
- You share requirements or your repository
- I confirm scope, timeline and questions before starting
- You get clean, documented code with a short README
Please message me before ordering so we can confirm the scope matches the package.
Get to know Jaxongir M
Jaxongir M
Backend Engineer
- FromUzbekistan
- Member sinceOct 2026
- Avg. response time1 hour
Languages
Uzbek, Russian, English
Senior Java Backend Developer with 6+ years of commercial experience (since 2020). I build REST APIs, microservices and integrations with Java 21+, Spring Boot, Kafka, Keycloak, PostgreSQL/Oracle and Kubernetes. Currently working on high-load systems (100K+ RPS) and leading architecture as a CTO. Previous work: PHP-to-Java marketplace migration, enterprise systems for a 50,000+ employee industrial company, telecom and e-commerce backends. I also build Telegram bots and payment integrations. Clean code, clear communication, on-time delivery.
Other Software Development Services I Offer
FAQ
Can you work on my existing project?
Yes. Share the repository or a zip; I will review it and confirm the effort before you order.
Which database do you use?
PostgreSQL by default; Oracle, MySQL and others are fine.
Do you deploy the application?
Premium includes a Docker setup and deployment guide. Deployment to your server can be added as an extra.
