Ionixx Technologies

Position: Senior Web3 Developer (Java) 
 
Location: Chennai (Remote) 
 
Notice Period : Immediate 
 
About The Role 
 
We are looking for a senior Web3 developer to design and build scalable, secure backend systems that power blockchain-based financial products. The ideal candidate combines deep backend engineering expertise with hands-on Web3 development experience and has worked on institutional-grade digital asset platforms where reliability, compliance, and performance are critical. 
 
Key Responsibilities 
 


* Bring 8+ years of professional software development experience, including at least 3 years dedicated to blockchain / Web3 technologies, contributing to the design and delivery of production-grade decentralized or hybrid systems.
* Design, develop, and maintain scalable backend services using Java (Spring Boot), ensuring high availability, performance, and maintainability across distributed systems.
* Apply strong proficiency in TypeScript to build robust, type-safe applications and integrations across the Web3 stack.
* Work hands-on with Web3 libraries such as ethers.js, web3.js, or equivalent tooling to interact with EVM-based chains, including smart contract calls, transaction management, and event listening.
* Demonstrate a deep understanding of tokenization standards (ERC-20, ERC-721, ERC-1155, ERC-3643), and apply this knowledge to build or integrate token issuance, transfer, and compliance mechanisms.
* Contribute to digital asset trading systems, including order matching engines, real-time market data feeds, and integration with exchange APIs for trade execution and settlement.
* Bring prior experience working with institutional-grade digital asset platforms - such as exchanges, custodians, or tokenization providers - with an understanding of the security, compliance, and operational rigor these environments demand. 
 
 

(ref:hirist.tech)

Java

Blockchain

Security software

Software Development

Compliance

TypeScript

Spring

Spring Boot

System security

Smart contract

Data

Ethereum

Web3

ERC20 Token Development

Matching Engine

Exchange web services

Transactions

Tokenomics

Ionixx Technologies - Senior Web3 Developer - Java/Blockchain