Full-stack Blockchain Engineer (Cross-chain + ZK + Solidity)

We are looking for a Senior Full-stack Blockchain Engineer to work on server-side and cross-chain development involving Rust, TypeScript, Solidity, and zero-knowledge (ZK) technologies.

Requirements

• Strong proficiency in Rust (server / ZK)
• Experience with TypeScript (server / frontend)
• Knowledge of Solidity and experience implementing cross-chain contracts
• Solid understanding of architecture, databases, scalability, and security best practices
• Hands-on experience with ZK frameworks (zk-SNARKs / zk-STARKs, circom / halo2 / gnark)
• Proven experience with cross-chain technologies (IBC / LayerZero / Axelar / CCIP)

Would be a plus

• Experience designing or building cross-chain bridges
• ZK proof generation optimization
• Audit-ready Solidity development practices
• Familiarity with event-driven systems (Kafka, etc.)
• Understanding of crypto transactions, gas mechanics, and wallet integration

Responsibilities

• Develop server-side and cross-chain components using Rust, TypeScript, and Solidity
• Implement zk-SNARK / zk-STARK systems — proof generation and verification with circom / halo2 / gnark
• Work with cross-chain frameworks such as IBC, LayerZero, Axelar, CCIP (with real implementations)
• Build and maintain scalable and secure backend architecture
• Ensure performance optimization and compliance with best development practices

What We Offer

• Competitive compensation
• Social package (24 working days of annual leave and 5 paid sick days)
• Flexible working hours
• Challenging projects in diverse business domains and a variety of tech stacks
• Personal development and professional growth opportunities
• Work with talented, ambitious and family-feel team
• Educational possibilities: corporate courses, knowledge hubs, and in-house English classes
• Compensation for your professional certification & support for your learning activities
• Opportunity to choose IT equipment you like
• Corporate social responsibility