WazirX- Senior Software Development Engineer (SDE III) - Blockchain Infrastructure

Job Title: Senior Software Development Engineer (SDE III) – Blockchain Infrastructure
Location: Remote
Experience: 5–7 years
Education: B.E/B.Tech in Computer Science, IT, or related field

We are looking for a highly skilled Senior Software Development Engineer (SDE III) to join our blockchain engineering team. The ideal candidate will play a critical role in designing, building, and maintaining secure, scalable blockchain infrastructure. You'll work on systems that power wallet operations, protocol integrations, crypto asset flows, and compliance enforcement for a high-volume, regulated Web3 environment.

• Token Lifecycle Management:
  
  • Execute token listings, delistings, and swaps based on inputs from Marketing and Product teams, ensuring timelines and accuracy.
    
• Crypto Deposit & Withdrawal Systems:
  
  • Design and maintain robust systems for managing crypto asset deposits and withdrawals.
    
  • Build and monitor integrations with third-party Wallet-as-a-Service (WAAS) providers and blockchain networks.
    
  • Implement in-built transaction monitoring and system alert mechanisms.
    
• Transaction Signing:
  
  • Sign outbound transactions securely and ensure proper authorization protocols are followed.
    
• Blockchain Node Upgrades:
  
  • Track updates released by blockchain protocols, evaluate their impact, and safely implement mandatory/optional node upgrades.
    
  • Develop rollback mechanisms in case of instability.
    
• Funds Sweeping:
  
  • Automate and manage scheduled sweeping of funds to designated wallets as per internal protocols.
    
  • Ensure traceability and security of all fund movements.
    
• Deposit/Withdrawal Audits:
  
  • Conduct regular audits to identify and resolve transaction discrepancies.
    
  • Ensure transparency and traceability in line with internal and regulatory standards.
    
• Compliance Implementation:
  
  • Ensure all wallet operations and crypto transactions meet current compliance regulations.
    
  • Proactively update systems and processes in response to changes in standards.
    
• Wallet Management:
  
  • Manage end-to-end wallet infrastructure including configurations, access controls, and security protocols.
    
• Custody Integrations:
  
  • Integrate and manage multiple third-party custody service providers to ensure secure and reliable storage solutions.
    

• Cryptography and secure transaction protocols
  
• Blockchain and protocol understanding (Bitcoin, Ethereum, etc.)
  
• Smart contract basics
  
• Web3 technologies and third-party wallet integrations
  

• Strong problem-solving mindset
  
• Stakeholder communication and cross-functional collaboration
  
• Attention to detail and audit-oriented thinking
  
• Ownership and accountability in high-stakes environments
  

• Internal:
  
  • Product Managers, Marketing, Compliance, CHC – for prioritization, updates, alerts, and audit feedback
    
• External:
  
  • Wallet providers, Custody providers, Travel rule vendors, Blockchain protocol teams – for integration support and ongoing issue resolution
    

• Timely and accurate token listing/delisting
  
• Uptime and reliability of deposit/withdrawal systems
  
• Successful implementation of node upgrades without disruption
  
• Compliance adherence and audit closure rates
  
• Custody provider integration quality and performance