Senior Blockchain Systems Architect

Ondo Finance, Inc.; United States; Remote; USD 180,000 - 240,000; Full time

Benefits offered by this job

Token rights

Equity

Full benefits

Flexible PTO

Remote-first team

Elite colleagues

Leading investors

Job summary

Ondo Finance, Inc. is seeking a Senior Blockchain Engineer to own the design of secure, scalable smart contract systems across deployment, security, monitoring, and lifecycle management.

You will build cross-chain solutions for Real World Asset tokenization and develop tooling for non-technical teams to view and manage on-chain state. You will collaborate with product, legal, compliance, web, and ops to ensure regulatorily aligned and operable contracts, while shaping the future of on-chain

Qualifications

• 5+ years of software engineering experience.
• 3+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains.
• Strong competency with Solidity; exposure to non-EVM smart contract languages a plus - particularly Solana.
• Demonstrated ability to design systems, not just contracts - including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams.
• Proven results building and scaling a DeFi protocol.
• Python and/or TypeScript experience preferred (for building tooling and automation).
• Excellent technical and non-technical communication skills, verbal and written.

Responsibilities

• 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.

Skills

Blockchain engineering

Software engineering

Python

TypeScript

Communication skills

DeFi protocol experience

Solidity

Education

Bachelor’s degree in Computer Science or Engineering

Tools

Solidity

Solana

Job description

Ondo Finance, Inc. is seeking a Senior Blockchain Engineer to own the design of secure, scalable smart contract systems across deployment, security, monitoring, and lifecycle management.

You will build cross-chain solutions for Real World Asset tokenization and develop tooling for non-technical teams to view and manage on-chain state. You will collaborate with product, legal, compliance, web, and ops to ensure regulatorily aligned and operable contracts, while shaping the future of on-chain