Design, build, and maintain secure, scalable blockchain infrastructure for wallet operations, deposits/withdrawals, transaction signing, node upgrades, funds sweeping, custody integrations, compliance enforcement, monitoring, and auditability in a regulated Web3 environment.
Job Title: Senior Software Development Engineer (SDE III) – Blockchain Infrastructure
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.
Key Responsibilities:- Token Lifecycle Management:
- Execute token listings, delistings, and swaps based on inputs from Marketing and Product teams, ensuring timelines and accuracy.
- 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.
- Design and maintain robust systems for managing crypto asset deposits and withdrawals.
- Transaction Signing:
- Sign outbound transactions securely and ensure proper authorization protocols are followed.
- 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.
- Track updates released by blockchain protocols, evaluate their impact, and safely implement mandatory/optional node upgrades.
- Funds Sweeping:
- Automate and manage scheduled sweeping of funds to designated wallets as per internal protocols.
- Ensure traceability and security of all fund movements.
- Automate and manage scheduled sweeping of funds to designated wallets as per internal protocols.
- Deposit/Withdrawal Audits:
- Conduct regular audits to identify and resolve transaction discrepancies.
- Ensure transparency and traceability in line with internal and regulatory standards.
- Conduct regular audits to identify and resolve transaction discrepancies.
- Compliance Implementation:
- Ensure all wallet operations and crypto transactions meet current compliance regulations.
- Proactively update systems and processes in response to changes in standards.
- Ensure all wallet operations and crypto transactions meet current compliance regulations.
- Wallet Management:
- Manage end-to-end wallet infrastructure including configurations, access controls, and security protocols.
- 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
- 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
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