Senior Blockchain Engineer

🚀 Senior Blockchain Engineer (Full Stack) | Web3 / FinTech / Cryptography🌍 Remote – Poland, Romania, Bulgaria, Germany, Spain or UK (must be European citizen)💰 Up to $150,000 USD + B2B ContractWe’re hiring a Senior Blockchain Engineer (Full Stack) to help build a next-generation platform focused on verifiable financial data, blockchain attestations, privacy-preserving processing, and cryptographic proof systems.This is a highly technical, hands-on engineering role at the intersection of:• Blockchain infrastructure• Financial data systems• Privacy technology & cryptography• Distributed systems• Canonical data modelling• Smart contract integrationYou’ll work on production-grade systems that ingest, transform and verify high-volume financial data, while enabling secure and selective disclosure through blockchain-based attestation workflows.🔧 Key Technical Areas• Blockchain consensus protocols• Privacy-preserving technologies / Zero-Knowledge systems• Cryptographic workflows & homomorphic encryption• Golang (preferred), Java or Rust• Blockchain oracles (e.g. Chainlink)• Smart contracts & blockchain integrations• High-volume backend systems & event-driven architectures• Data transformation, storage & canonical modeling• React + TypeScript frontend tooling• Cloud-native infrastructure & CI/CD✅ What We’re Looking For• 5+ years building production-grade software• Strong backend engineering experience in Golang (preferred), Java or Rust• Experience with blockchain-enabled or Web3 systems• Understanding of blockchain consensus mechanisms• Experience handling complex data transformation and database/storage workflows• Strong understanding of distributed systems and scalable architectures• Experience designing APIs and event-processing pipelines• Comfortable working across backend and frontend layers• Experience leveraging AI-assisted development tools⭐ Nice to Have• ZK proofs or cryptographic verification systems• Financial services / fintech / capital markets experience• ISO 20022 or canonical financial data models• Solidity / smart contract development• Kafka or event streaming platforms• Provenance, auditability or verifiable credential systemsThis is an opportunity to join a deeply technical team building infrastructure for the future of verifiable financial systems, digital asset workflows, and privacy-preserving blockchain applications.If interested, message me directly or apply below.