Remote Blockchain Engineer: Secure DeFi & Smart Contracts

The Bitcoin Street Journal; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Token equity

Medical vision dental

Flexible PTO

Remote-first

Elite team network

Job summary

Ondo is seeking a Blockchain Engineer to design smart contract systems, focusing on deployment, security, monitoring, and lifecycle management across ecosystems. You will build secure, scalable on-chain solutions and create tooling for non-technical teammates to view and manage contracts.

You’ll collaborate with product, legal, compliance, web, and ops to ensure contracts are technically sound, regulatorily aligned, and operable by teams.

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

• Smart Contract System Design: 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.
• Lifecycle Security & Operations: 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.
• 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.
• Collaborative Execution: Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals.

Skills

Solidity

Solana

Python

TypeScript

System design

DeFi protocol

Communication

Security

Education

Bachelor's degree in Computer Science, Engineering, or a related technical field

Tools

Solidity tooling

Web3 tooling (Web3.js / ethers.js)

Git

Job description

Ondo is seeking a Blockchain Engineer to design smart contract systems, focusing on deployment, security, monitoring, and lifecycle management across ecosystems. You will build secure, scalable on-chain solutions and create tooling for non-technical teammates to view and manage contracts.

You’ll collaborate with product, legal, compliance, web, and ops to ensure contracts are technically sound, regulatorily aligned, and operable by teams.