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Job Title: Senior Software Development Engineer (SDE III) – Blockchain Infrastructure

Location: [Insert Location]

Reporting To: [Insert Reporting Line, e.g., Engineering Manager – Blockchain Services]

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