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Fiverr Pro
English
$
USD
I will develop a custom backend application or microservice
Blu
About this gig
Need a robust, high-performance Java backend or scalable microservice? You are in the right place!
I am a senior software engineer with 10+ years of experience specializing in multithreaded applications, microservices, and database optimization. I design and build secure, fast, and scalable Java systems tailored to handle heavy workloads.
What I offer:
- Custom Java backend development (Spring Boot or Plain Java)
- Microservices architecture & RESTful API development
- Database integration (MySQL, PostgreSQL, Redis caching, MongoDB)
- High-concurrency & multithreading optimization
- Third-party API & Message Queue integration (RabbitMQ, Kafka)
- Docker containerization ready
- Clean, well-commented code (SOLID principles)
Why choose me?
I specialize in high-load systems, having worked on backend infrastructures supporting over 20,000 concurrent users.
LAUNCH OFFER: I am new to Fiverr and offering premium backend services at heavily discounted rates to build up my reviews. Take advantage of this limited-time offer!
Please contact me before ordering. Let's discuss your system architecture!
Get to know Blu
Blu
- FromGermany
- Member sinceDec 2019
- Avg. response time1 hour
Languages
English, German
Professional Software Engineer & Game Developer with over 10 years of experience. I specialize in building high-performance Java applications and developing immersive games across Unreal Engine, Unity, and Godot.
Whether you need scalable backend solutions, complex database integrations, or robust game mechanics, I deliver clean, optimized, and industry-grade code. I don't just write software, I build efficient, lag-free, and future-proof systems tailored to your exact needs. Let's bring your project to life!
Other Software Development Services I Offer
FAQ
Which Java frameworks do you use?
I primarily work with Spring Boot (for feature-rich, enterprise applications), but I can also write pure Java applications without external frameworks if required.
Can you package the application in a Docker container?
Absolutely. I can deliver your microservice fully dockerized, complete with Dockerfile and docker-compose.yml for easy and seamless deployment on any cloud server.
Can you help integrate message brokers like RabbitMQ or Kafka?
Yes, I have extensive experience in building event-driven architectures and can integrate message queues to connect your microservices seamlessly.
Can you modify, optimize, or fix an existing Java application?
Yes, absolutely! I can help you debug, optimize, or modify your existing codebase. Please send me your current code or repository along with a description of the issues or changes needed, so I can review it before we start.
Can we extend or upgrade the application in the future?
Yes. I write clean, modular code following SOLID principles and industry standards, ensuring that your system is easy to extend, maintain, and upgrade as your requirements grow. We can always set up a new custom order for future updates.
