Position: Blockchain Developer, Software Solutions
Company: DataArt
Category: Java
Experience required: 1y
English level: intermediate

**About the vacancy**

Our customer is a large transport company that is carrying out its digital transformation and wants to use smart contracts in its business chain. We are looking for a developer for a blockchain project. The developer will work in the development team for a new system based on Hyperledger Fabric.

We hire people not to a project, but to the company. If the project (or your work in it) is over, you go to another project or to a paid “Idle”.

**Must have**
- 1+ years of experience as a full-stack or backend blockchain developer
- Excellent knowledge of Hyperledger Fabric v1.4+ and Golang (Go)
- Working experience with NoSQL-bases (CouchDB, LevelDB)
- In-depth understanding of blockchain architecture, smart contracts, and data structures
- Good English

**Would be a plus**
- Strong knowledge of Java (ability to build client applications around the blockchain, experience with Hyperledger Fabric SDK)
- Working experience with tuning the performance in blockchain-based application
- Familiarity with Event Driven Architecture and basic cryptography
- Experience with gRPC, messaging systems
- Proficiency in relational databases (eg PostgreSQL)