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Job Description
Role:
Senior Blockchain Engineer Location:
Southlake, TX ;
Austin, TX Duration:
Contract Responsibilities :
Layer1 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. CustodyRelated Blockchain Workflows Support custody-related blockchain workflows, including on-chain transaction execution, event monitoring, reconciliation, and failure recovery. Define safe interaction patterns for smart contracts and token standards within 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. Use GenAI and agentic AI tools to accelerate protocol analysis, development, testing, documentation, and knowledge sharing. Maintain engineering rigor by balancing speed, correctness, and safety.
Qualifications:
Core Qualifications Minimum of 7 years of professional experience in software engineering. Demonstrated experience in the development or integration of blockchain and distributed ledger technology solutions. Strong knowledge of Layer 1 blockchain architectures, including transaction flow and lifecycle concepts. Proven experience in building backend systems, APIs, and foundational infrastructure services. Proficiency in one or more programming languages such as Go, Java, Rust, Python, or comparable technologies. Ability to work effectively in a cross-functional environment spanning custody, security, and platform engineering teams. Preferred Qualifications Experience with blockchain data infrastructure, including indexers, block explorers, and on-chain analytics platforms. Solid understanding of wallet architectures and blockchain transaction signing workflows. Exposure to crypto custody environments or other highly secure, regulated financial platforms. Strong diagnostic and problem-solving capabilities within distributed, event-driven, and asynchronous systems. Experience applying AI-enabled development tools to support complex engineering and delivery workflows.
