Fullstack Blockchain Lead

Summary

Join Espeo Software, a technology company with over 16 years of experience in fintech solutions, as a Fullstack Blockchain Lead. This remote position offers competitive hourly pay (PLN 135-155/hour). You will develop applications using JavaScript/TypeScript and Solidity, contribute to product design, architect secure blockchain systems, and maintain high coding standards. The ideal candidate possesses 3+ years of Solidity experience, proficiency in blockchain concepts and cryptography, strong problem-solving skills, and excellent English communication skills. Espeo Software is located in Poznań, Poland.

Requirements

• 3+ years of experience with Solidity or other blockchain smart contract technologies
• Proficiency in blockchain technical concepts, cryptography, and secure system architecture
• Strong problem-solving skills and a mindset focused on questioning assumptions (“why” before “how”)
• Interest in DeFi and FinTech technologies
• Ability to work both independently and as part of a larger team
• Proficiency in English communication

Responsibilities

• Develop applications using JavaScript/TypeScript and Solidity
• Contribute to product design from both a technical and functional perspective
• Architect and implement secure and distributed systems in the blockchain space
• Work with front-end and back-end technologies related to blockchain (Next.js, Node.js, TypeScript, web3.js)
• Maintain high coding standards, ensuring quality and attention to detail