Senior C# Developer: Crypto Payments Lead (Remote)

Cryptorefills is seeking a Senior C# Developer to own and evolve our crypto payment processor integration. The role is fully remote for candidates based in Italy, with flexible employment options including self-employed or contract.

You will lead the self-hosted payments integration, optimize performance, and implement new coins and blockchains while ensuring security and reliability in a fast-growing fintech environment.

Lead & maintain: Take full ownership of our Self-hosted crypto payment processor integration, making architectural decisions and driving improvements. Refactor & optimize: Continuously enhance code for performance, maintainability, and scalability. Implement New Coins/Blockchains: Work with the CTO, founder, and backend team to integrate additional coins and blockchain networks. Ensure security & reliability: Design and maintain robust payment processing systems with strong security standards. Collaborate & innovate: Participate in daily team stand-ups, code reviews, and knowledge sharing. 5+ years of experience in software development. Highly skilled in C# and .NET. Experience with backend development, APIs, and payment processing. Fluent in English (written and spoken).