Senior Blockchain Engineer

This is a remote position.

We're looking for a Senior Blockchain Engineer who can take ownership of blockchain engineering, production readiness, smart contract implementation, and multi-chain integrations while working closely with our Technical Lead and founding team.

This is a hands-on engineering role with significant technical ownership. You'll help shape the platform architecture, engineering standards, and long-term scalability—not simply execute predefined tasks.

Much of the work involves integrating multiple blockchain and financial APIs into a unified developer experience.

• Harden the platform for production deployment
  
• Implement encryption at rest and in transit
  
• Design and maintain secure Role-Based Access Control (RBAC)
  
• Build comprehensive audit logging and monitoring
  
• Support security reviews and penetration testing
  

• Build and maintain secure smart contracts using audited open-source standards (e.g., OpenZeppelin)
  
• Integrate and manage blockchain infrastructure across multiple networks
  
• Develop chain-agnostic transaction workflows
  
• Implement secure transaction lifecycle management
  

Expand support beyond existing integrations by working with:

• Ethereum
  
• Stellar
  
• Arbitrum
  
• Base
  
• Tempo
  
• Circle infrastructure
  
• Both EVM and non-EVM ecosystems
  

Develop and enhance:

• Off-chain audit records
  
• Reporting and treasury dashboards
  
• Local payout/off-ramp integrations
  
• Treasury management workflows
  
• Blockchain orchestration APIs
  

Implement transaction controls including:

• Approval workflows
  
• Operational risk guardrails
  
• Compliance integrations
  
• Secure wallet management
  
• Chainalysis (or similar) transaction screening before fund release