Senior Software Engineer Tech Lead Web3 Initiatives Backend focused

Skills

About the Role

You will own CaaS web3 capabilities and design secure, scalable blockchain systems for card-as-a-service and asset management. You will lead wallet infrastructure discovery and architect hot and cold wallet solutions. You will build backend services in Node.js and TypeScript to support on-chain functionality, collaborate with product and business teams to translate ideas into secure technical execution, contribute to architecture decisions and code reviews, perform security audits, and leverage AI tools and modern development practices to increase engineering efficiency.

Requirements

• 5-8+ years in software development with backend engineering experience
• Experience with Node.js and TypeScript
• Experience with AWS or similar cloud infrastructure
• Experience building wallet infrastructure including hot and cold wallets
• Strong product sense and ability to take end-to-end ownership of technical initiatives
• Demonstrated use of AI tools to boost development efficiency
• Clear communication, collaboration, and commitment to code quality
• Fintech sector experience preferred
• Experience with DeFi protocols, cross-chain integrations, or account abstraction (nice to have)
• 3+ years building smart contracts on Solana (Rust) or Ethereum (Solidity) with strong expertise in at least one (nice to have)
• Knowledge of finance systems or payments products such as card issuance or stablecoin payments (nice to have)
• Startup experience where you've worn multiple hats (nice to have)

Responsibilities

• Own CaaS web3 capabilities and build secure scalable blockchain systems for card-as-a-service and asset management
• Lead wallet infrastructure discovery and architect wallet solutions including hot and cold wallets
• Build backend services in Node.js and TypeScript to support on-chain functionality
• Collaborate with product and business teams to translate ideas into secure technical execution
• Contribute to architecture decisions, perform code reviews, and conduct security audits
• Leverage AI tools and modern development practices to drive engineering efficiency and velocity

Benefits

• Flexible hybrid work environment with a global collaborative team
• Insurance coverage after probation
• Reap Card stipend
• Use of AI tools at work and space to learn and experiment with them