Our agency will develop custom software or backend systems using java and spring


Vetted Pro
Level 1
Agency
Vetted by Fiverr Pro
Sibers was selected by the Fiverr Pro team for their expertise.
About this gig
We've been developing custom software and scalable backend systems using Java since 1998.
Our team's experience spans everything from lightweight business tools to complex enterprise platforms serving thousands of users. Whether you need a standalone backend service or a full enterprise suite, you'll get a solution built to stay reliable, maintainable, and ready to scale.
What we can build:
- Enterprise and SaaS applications
- RESTful APIs and microservices
- ERP, CRM, and workflow automation tools
- Cloud-native systems (AWS, Azure, GCP)
- Database design and optimization
- Secure authentication and access control
You can also modernize any legacy Java project - we've worked with Java technologies since version 1.2, handling both legacy migrations and modern Spring Boot systems.
Whether you're starting a new project or rebuilding an existing one, we'll deliver a solution that performs well, scales easily, and lasts.
Message us to start building your Java solution.
About this agency

Vetted Pro
Agency
100 employees
Level 1
Sibers is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
AI Development
Mobile App Development
Software Development
Website Development
- FromUnited States
- Member sinceAug 2024
- Avg. response time8 hours
- Last delivery3 days
Languages
English
Portfolio
Other Software Development Services we Offer
FAQ
Do you work with existing Java projects or only new ones?
Both. We can join an existing codebase, refactor or extend it, or build a new system from scratch — depending on what your business needs.
Which Java frameworks do you use?
Mostly Spring, but we can adapt to any Java-based stack if needed.
Can you modernize legacy Java applications?
Yes. We handle migrations from very old versions (even Java 1.2) to modern, secure architectures with zero data loss.
Can you develop large-scale enterprise systems?
Absolutely. Our experience includes ERP, CRM, and SaaS platforms with high data loads and thousands of concurrent users.
Do you work with cloud infrastructure?
Yes. We deploy and maintain Java systems on AWS, Azure, or Google Cloud — including containerized setups with Docker and Kubernetes.
Can you integrate third-party APIs or internal services?
Of course. We frequently integrate payment gateways, authentication providers, analytics tools, and corporate systems.
Can you collaborate with my existing team?
Yes. We can integrate smoothly with your developers, work in sprints, or manage the full development cycle independently.
Do you speak fluent English?
Yes. Communication is clear, structured, and technical discussions are handled with precision at every stage of the project.
