Senior Blockchain Engineer, Digital Assets

About the role

This is a hands-on engineering role focused on Layer-1 blockchain integration, core blockchain infrastructure components, wallet engineering, and custody-related blockchain workflows. The role works in close partnership with Crypto Custody Lead Engineers and Crypto Security Engineers to ensure blockchain interactions are secure, reliable, observable, and production-ready. This engineer operates at the intersection of blockchain protocol mechanics and institutional custody systems.

Responsibilities

• Integrate Schwab systems with existing Layer-1 blockchains (e.g., Ethereum-based or other enterprise-relevant L1s).
• Evaluate and, where appropriate, contribute to building or extending Layer-1 capabilities to meet custody, scalability, or resiliency needs.
• Understand chain-level mechanics such as transaction lifecycle, finality, forks, reorgs, and event propagation.
• Ensure blockchain integrations are reliable under stress conditions and production loads.
• Design and build core blockchain infrastructure services, including:
• Indexers and event processors
• Block explorers and observability tooling
• Chain data services and APIs
• Interoperability and cross-chain integration components
• Support operational tooling required for troubleshooting, monitoring, and incident response.
• Contribute to wallet architecture and development, including:
• Blockchain-facing wallet services
• Transaction creation, signing workflows, and submission pipelines
• Integration with custody key management systems (MPC, HSMs, signing services)
• Ensure wallet implementations cleanly separate protocol logic, security controls, and business rules.
• Partner closely with custody and security engineers to validate end-to-end transaction flows.
• Share responsibility for custody-related blockchain workflows, including:
• On-chain transaction execution
• Event monitoring and reconciliation
• Chain-specific failure handling and recovery patterns
• Help define safe patterns for interacting with smart contracts and token standards from custody platforms.
• Ensure blockchain workflows align with custody policies, approvals, and risk controls.
• Apply modern engineering practices to build reliable, testable, and observable blockchain services.
• Leverage GenAI and agentic AI tools to accelerate:
• Protocol analysis
• Code development and testing
• Documentation and knowledge sharing
• Maintain engineering rigor—speed without sacrificing correctness or safety.

Requirements

• 7+ years of professional software engineering experience.
• Hands-on experience building or integrating blockchain or distributed ledger systems.
• Strong understanding of Layer-1 blockchain protocols and transaction lifecycles.
• Experience building backend services, APIs, and infrastructure components.
• Proficiency in one or more languages such as Go, Java, Rust, Python, or similar.
• Ability to work effectively across custody, security, and platform teams.

Strongly Preferred

• Experience with blockchain indexers, explorers, or chain analytics systems.
• Familiarity with wallet architecture and blockchain signing workflows.
• Exposure to crypto custody platforms or security-sensitive financial systems.
• Strong debugging instincts in distributed, asynchronous environments.
• Experience using AI tooling to support complex software development.

Qualifications

• 7+ years of professional software engineering experience.
• Hands-on experience building or integrating blockchain or distributed ledger systems.
• Strong understanding of Layer-1 blockchain protocols and transaction lifecycles.
• Experience building backend services, APIs, and infrastructure components.
• Proficiency in one or more languages such as Go, Java, Rust, Python, or similar.
• Ability to work effectively across custody, security, and platform teams.

Skills

• Modern engineering practices to build reliable, testable, and observable blockchain services.
• Leverage GenAI and agentic AI tools to accelerate protocol analysis, code development and testing, documentation, and knowledge sharing.
• Maintain engineering rigor—speed without sacrificing correctness or safety.

Benefits

• 401(k) with company match and Employee stock purchase plan.
• Paid time for vacation, volunteering, and 28-day sabbatical after every 5 years of service for eligible positions.
• Paid parental leave and family building benefits.
• Tuition reimbursement.
• Health, dental, and vision insurance.