Senior Software Engineer/Tech Lead, Web3 Initiatives – Backend-focused

Posted 1 hour ago

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About the role

  • Senior Software Engineer driving web3 technical initiatives for a fintech company. Building Web3 capabilities for financial products and collaborating with global teams on innovative solutions.

Responsibilities

  • Own CaaS web3 capabilities — build secure, scalable blockchain systems for card-as-a-service, asset management, and financial use cases
  • Lead wallet infrastructure discovery and development — architecting wallet solutions that support Reap's product roadmap
  • Build backend services (Node.js/TypeScript) to support on-chain functionality, working closely with backend engineering
  • Collaborate with product and business teams to translate ideas into clear, secure technical execution
  • Contribute to architecture decisions, code reviews, and security audits
  • Leverage AI tools and modern development practices to drive engineering efficiency and velocity

Requirements

  • 5-8+ years in software development, ideally with backend engineering experience in Node.js/TypeScript and AWS (or similar cloud infrastructure)
  • Experience building wallet infrastructure (hot/cold wallet)
  • 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 ideal
  • Nice to Have
  • Experience with DeFi protocols, cross-chain integrations, or account abstraction
  • 3+ years building smart contracts on Solana (Rust) or Ethereum (Solidity), with strong expertise in at least one and openness to developing in a multi-chain environment
  • Knowledge of finance systems or payments products (especially card issuance or stablecoin-powered payments)
  • Startup experience where you've worn multiple hats

Benefits

  • A high-impact role in a rapidly growing fintech startup
  • Flexible hybrid work environment with a global, collaborative team
  • Insurance coverage after probation
  • Reap Card stipend
  • Use of AI tools at work — and the space to learn, experiment, and grow with them
  • A culture of innovation, inclusion, and continuous learning

Job type

Full Time

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Tech skills

AWSCloudJavaScriptNode.jsRustSolidityTypeScriptWeb3

Location requirements

RemoteWorldwide

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