Senior Blockchain Engineer

Job Title: Senior Blockchain Engineer
Location: Southlake, TX or Austin, TX

Duration: Long term Contract

Responsibilities:

Layer‑1 Blockchain Integration & Platforms

• Integrate systems with Layer 1 blockchains, including Ethereum-based and other enterprise-relevant networks.
• Evaluate and enhance Layer 1 capabilities to support custody, scalability, and resiliency needs.
• Understand key chain mechanics, including transaction lifecycle, finality, forks, reorgs, and event propagation.
• Ensure blockchain integrations remain reliable under production load and stress conditions.

Blockchain Infrastructure Components

• Design and build core blockchain infrastructure, including indexers, event processors, block explorers, observability tools, chain data services, APIs, and cross-chain components.
• Ensure blockchain data pipelines are accurate, performant, and auditable.
• Support tooling for monitoring, troubleshooting, and incident response.

Wallet Architecture & Development

• Contribute to wallet architecture and development, including wallet services, transaction creation, signing workflows, and submission pipelines.
• Integrate wallets with custody key management systems such as MPC, HSMs, and signing services.
• Ensure clear separation of protocol logic, security controls, and business rules in wallet implementations.
• Partner with custody and security teams to validate end-to-end transaction flows.