Ionixx Technologies - Senior Web3 Developer - Java/Blockchain

As a Senior Web3 Developer at Ionixx Technologies, you will design and build scalable, secure backend systems that power blockchain-based financial products. You combine deep backend engineering expertise with hands-on Web3 development experience, having worked on institutional-grade digital asset platforms where reliability, compliance, and performance are critical.

What you'll do

• Design, develop, and maintain scalable backend services using Java and 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 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

What you 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
• 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