Blockchain Engineer, Digital Assets

• Integrate Client systems with existing Layer1 blockchains (e.g., Ethereumbased or other enterpriserelevant L1s).
• Evaluate and, where appropriate, contribute to building or extending Layer1 capabilities to meet custody, scalability, or resiliency needs.
• Understand chainlevel mechanics such as transaction lifecycle, finality, forks, reorgs, and event propagation.
• Ensure blockchain integrations are reliable under stress conditions and production loads.

Blockchain Infrastructure Components

• Design and build core blockchain infrastructure services, including:
• Indexers and event processors
• Block explorers and observability tooling
• Chain data services and APIs
• Interoperability and crosschain integration components
• Ensure blockchain data pipelines are accurate, performant, and auditable.
• Support operational tooling required for troubleshooting, monitoring, and incident response.

Wallet Architecture & Development

• Contribute to wallet architecture and development, including:
• Blockchainfacing 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 endtoend transaction flows.

CustodyRelated Blockchain Workflows

• Share responsibility for custodyrelated blockchain workflows, including:
• Onchain transaction execution
• Event monitoring and reconciliation
• Chainspecific 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.

Engineering Rigor & AIAugmented Development

• 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., * Wallet and transaction pipelines behave correctly across normal and edgecase chain conditions.
• Custody systems interact with blockchains safely and consistently.
• Incidents related to blockchain dependencies are well understood and quickly diagnosed.
• This role establishes strong foundations for scalable digitalasset custody and tokenization platforms.

• 7+ years of professional software engineering experience.
• Handson experience building or integrating blockchain or distributed ledger systems.
• Strong understanding of Layer1 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 securitysensitive financial systems.
• Strong debugging instincts in distributed, asynchronous environments.
• Experience using AI tooling to support complex software development.