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

About the Role:

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.

Key Responsibilities:

  • 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.

Skills & Competencies:

Technical Skills:

  • Cryptography and secure transaction protocols

  • Blockchain and protocol understanding (Bitcoin, Ethereum, etc.)

  • Smart contract basics

  • Web3 technologies and third-party wallet integrations

Soft Skills:

  • Strong problem-solving mindset

  • Stakeholder communication and cross-functional collaboration

  • Attention to detail and audit-oriented thinking

  • Ownership and accountability in high-stakes environments

Stakeholder Interactions:

  • 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

Performance Metrics (Examples from OKRs):

  • 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