Role: Blockchain Expert - Technical and Strategic Lead
Location: Must be based in Europe
Salary: Up to €7k per month + bonus/tokens

Signify are partnered with an innovative fintech company specializing in payments, cryptocurrency, and blockchain solutions and are now seeking a Blockchain Expert to lead their upcoming crypto projects, including crypto wallets, decentralized exchanges (DEX), and other groundbreaking blockchain applications.

About The Role:

Technical Leadership

• Design and develop blockchain-based solutions, including crypto wallets, DEX integrations, and smart contracts.
• Provide expertise on on-chain and off-chain architectures, ensuring scalability and security.
• Evaluate and select appropriate blockchain protocols and tools.
• Keep up with industry trends, exploring L1, L2, rollups, bridges, and hybrid solutions.

Strategy & Market Leadership

• Act as a key decision-maker on blockchain projects, assessing feasibility, risks, and opportunities.
• Collaborate with business and product teams to define blockchain strategies aligned with market demands.
• Conduct research on crypto payments, DeFi, tokenization, and cross-chain interoperability.

Development & Implementation

• Implement smart contracts using Solidity, Rust, or Move, following security best practices.
• Develop backend services to interact with blockchain networks, optimizing performance and cost-efficiency.
• Ensure secure and efficient transaction processing.
• Maintain compliance with blockchain security standards and regulatory frameworks.

About You:

Must-Have:

• Blockchain Expertise
• In-depth knowledge of blockchain protocols, wallets, DEXs, DeFi, and crypto transactions.
• Experience with Ethereum, Solana, Polkadot, or other major blockchain platforms.
• Smart contract development (Solidity, Rust, or Move).
• Strong understanding of gas optimization, security best practices, and consensus mechanisms.
• Development Skills
• Proficiency in Rust and TypeScript (preferred).
• Experience with Node.js, Web3.js, ethers.js, or similar blockchain SDKs.
• Familiarity with event-driven architectures and message queues.
• Knowledge of Docker, Kubernetes, AWS, or cloud-based blockchain solutions.

Nice-to-Have:

• Experience with MEV strategies, Flashbots, or on-chain arbitrage.
• Understanding of zk-SNARKs, zk-Rollups, or other privacy-preserving technologies.
• Familiarity with DeFi protocols such as Aave, Uniswap, Curve, etc.
• Exposure to cross-chain solutions and interoperability frameworks.

Don't hesitate to apply if this could be of interest!