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Fiverr Pro
English
$
USD
I will build high concurrency low latency java spring boot microservices
About this Gig
I specialize in building secure, scalable Java backend systems for Web3 dApps and blockchain projects.
With over 10 years of backend development experience, I offer end-to-end solutions for:
Custom API development for smart contract interactions (Web3j)
Scalable off-chain services for transaction processing and data indexing
Database integration for blockchain analytics and user activity tracking
Performance optimization for high-throughput Web3 backends
Debugging and maintenance of existing Web3 applications
All packages include clean, well-documented source code and clear API specifications. I strictly provide technical development services only, with no financial or investment advice.
Let's build a robust, production-ready backend for your Web3 project today.
Purpose:
Dao
•
NFT
•
Smart Contracts
Programming language:
Go
•
Java
•
Solidity
Expertise:
Backend
•
Blockchain development
•
IPFS
•
Smart contracts
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
FAQ
Do you provide smart contract development?
I focus on backend system and API development. I can integrate your existing smart contracts with custom Java backends, but I do not write smart contracts from scratch.
What do you need from me to start
I will need your detailed requirements, API specifications, and access to your smart contract ABI (if applicable).
Can you help with smart contracts?
My core expertise is Java backend development, but I can help with simple contract integration, testing, or providing guidance. For custom contract development, I recommend working with a dedicated Solidity developer, and I can help integrate their work with your backend system.
