Senior Blockchain Engineer

Blockchain Lab; United States; Hybrid; USD 150,000 - 210,000; Full time

Job summary

Blockchain Lab is seeking a Senior Blockchain Engineer to own Ondo’s contract systems across their full life cycle—deployment, upgrades, admin, and monitoring—and to build tooling for non‑engineers to safely view and manage contracts.

You will architect secure, scalable smart contract systems for DeFi interoperability, bridging, and evolving product suites, and serve as the technical leader guiding the team toward reliable, long‑term maintainable solutions.

Qualifications

• Experience owning lifecycle of contract systems from design to upgrades.
• Ability to design secure, scalable DeFi components and bridges.
• Leadership in guiding engineering decisions and mentoring teammates.

Responsibilities

• Architect smart contract systems for Ondo's evolving product suite.
• Own deployment, upgrades, monitoring, and operational guardrails for contracts.
• Build tooling to let non-technical teammates safely view and manage contracts.
• Collaborate with product and cross-functional teams to ensure design decisions translate to end users.
• Provide technical leadership and set long-term maintainable direction.

Skills

Smart contract design

Security engineering

Blockchain architectures

Automation tooling

Cross-functional collaboration

Job description

Employer stated. Senior blockchain engineer asked to own Ondo’s contract systems across their whole life: deploy, upgrades, admin, monitoring, and the tools non-engineers use to touch them.* Smart Contract System Design: Architect entire smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start.* Lifecycle Security & Operations: Own contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve.* Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly.* Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users.* Technical Leadership: Serve as tech lead and subject matter expert for blockchain projects, guiding the engineering team toward high-impact, scalable solutions and making sound technical decisions aligned with long-term goals.