Jack & Jill is hiring a

Web3 Smart Contract Engineer at Top-tier DeFi infrastructure protocol co-led by OKX Ventures

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Smart Contract Engineer

Salary

Not Disclosed

Company Description

Top-tier DeFi infrastructure protocol co-led by OKX Ventures, Hashed, and Dao5

Job Description

Join the leading lending and LSDeFi platform on the Sui blockchain, managing over $380M in TVL with a 61% market share. As a Senior Smart Contract Engineer, you will design and secure the foundational infrastructure that powers nearly a million users, building high-performance protocol primitives in Move for the fastest-growing Layer 1 ecosystem.

Location

San Francisco, USA

Why this role is remarkable

• Lead development for the dominant protocol on Sui, operating at massive scale with zero tolerance for failure and influencing the growth of a premier L1 ecosystem.
• Backed by elite investors including OKX Ventures, Hashed, and Dao5, providing the stability and resources of a market leader with the agility of a 15-person team.
• Own protocol-critical decisions and ship innovative products like automated vaults and PRE DEX while receiving support for visa sponsorship if based locally.
  
  

What You Will Do

• Design, develop, and deploy secure smart contracts using Move to power lending, borrowing, and liquidity infrastructure for hundreds of thousands of users.
• Architect and lead rigorous security audits and code reviews to protect $380M+ in TVL from potential vulnerabilities and exploits.
• Collaborate with a global engineering team to integrate complex smart contract logic with high-performance blockchain infrastructure and front-end applications.
  
  

The ideal candidate

• Deep expertise in DeFi smart contract development, specifically building lending protocols, vaults, or liquidity primitives that have reached production at scale.
• Strong proficiency in Move, Solidity, or Rust with a track record of writing clean, efficient, and highly secure code verified by top-tier audit firms.
• Exceptional communication skills and a proactive problem-solving mindset, capable of articulating technical trade-offs to a global team while managing protocol-level complexity.
  
  

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/smart-contract-engineer-at-top-tier-defi-infrastructure-protocol-co-led-by-okx-v-ba35bb0f-297d-4d30-ae2a-f605de3a0a8c?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_ba35bb0f-297d-4d30-ae2a-f605de3a0a8c

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

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