Remote Blockchain Engineer: Secure, Scalable DeFi

Ondo; New York (NY); Remote; USD 140,000 - 210,000; Full time

Benefits offered by this job

Full benefits (medical, vision, dental

Flexible PTO

Job summary

Ondo is seeking a Blockchain Engineer to design secure, scalable smart contract systems across multiple ecosystems. You will handle deployments, security, monitoring, and lifecycle tooling, ensuring integration with web apps and operations.

You will collaborate with product, legal, compliance, web, and ops to align regulatory and technical requirements while delivering maintainable, elegant designs that enable rapid and safe progress.

Qualifications

• Based in PT, MT, CT, or ET time zones.
• Excellent technical and non-technical communication skills, verbal and written.
• Bachelor's degree in Computer Science, Engineering, or a related technical field.
• 3+ years of software engineering experience.
• 1+ 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).
• Strong technical grasp and excellent judgment on task prioritization.
• Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope."

Responsibilities

• Contribute to the architecture of 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.
• Help ensure 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.
• 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.
• 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.
• Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals.

Skills

Solidity

Python

TypeScript

Communication skills

System design

Education

Bachelor's degree in Computer Science or related field

Tools

Solana

Job description

Ondo is seeking a Blockchain Engineer to design secure, scalable smart contract systems across multiple ecosystems. You will handle deployments, security, monitoring, and lifecycle tooling, ensuring integration with web apps and operations.

You will collaborate with product, legal, compliance, web, and ops to align regulatory and technical requirements while delivering maintainable, elegant designs that enable rapid and safe progress.