DeFi Jobs

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Job Position Company Posted Location Salary Tags

BYTE

Miami, FL, United States

$88k - $210k

Etheridge Capital

New York, NY, United States

$72k - $100k

Aave Labs

New York, NY, United States

$135k - $170k

Selby Jennings

New York, NY, United States

$150k - $200k

M0

New York, NY, United States

$140k - $240k

Chainlink Labs

New York, NY, United States

$84k - $120k

Chain Catcher

Remote

$84k - $120k

IMC Trading

New York, NY, United States

$170k - $230k

Bullish

New York, NY, United States

$125k - $145k

Bitwave

San Francisco, CA, United States

$63k - $72k

Halborn

New York, NY, United States

$84k - $90k

Symbiotic

New York, NY, United States

$105k - $157k

Okx

Remote

$122k - $180k

Jumpcrypto

Remote

$150k - $200k

Kraken

London, United Kingdom

$72k - $110k

BYTE
$88k - $210k estimated
Miami-Fort Lauderdale Area US

BYTE Protocol is the per-byte data settlement layer for the agentic economy, built

on Arbitrum. Publishers stake PPB tokens, broadcast data feeds, and earn USDC per

KB. AI agents pay per kilobyte via MCP or x402. Quality is enforced entirely

on-chain through a Proof-of-Quality Score (PQS) — computed from disputes,

retention, and freshness — with progressive slashing for bad actors

(5%→10%→25%+suspension→100%+ban) and up to 70% take rate for top-tier publishers.


No arbitration committee. No trusted intermediary. The protocol enforces it.


BYTEDev Inc. is the Delaware C-Corp behind the protocol. We are pre-mainnet and

pre-funding, with 20 contracts live on Arbitrum Sepolia, 533 tests passing, and

agents already settling on testnet.


---

The Role


The protocol is built. What comes next is the hardest part: getting it to mainnet

safely.


This is a co-founder role. You will own the path from working testnet to audited,

production-grade protocol — leading the external security audit, hardening the

contracts, and shaping the technical roadmap from here forward. You'll work

directly with the founder, have real ownership in the company, and be the technical

voice to auditors, investors, and the builder community.


---

What You'll Own


- Lead the external security audit end-to-end — firm selection (Trail of Bits,

OpenZeppelin, Spearbit, or your recommendation), scope definition, remediation, and

sign-off

- Identify and close attack vectors the existing test suite doesn't cover —

reentrancy, flash loan manipulation, MEV, oracle gaming, access control edge cases

- Architect v0.6+ contracts alongside the founder — commit-reveal PQS, validator

tiering, governance activation

- Design and maintain a robust security architecture across the full stack:

on-chain contracts, Rust indexer, TypeScript agent tooling, and x402 gateway

- Drive strategic IT and infrastructure decisions as the protocol scales toward

mainnet and beyond

- Oversee technical execution, manage high-stakes timelines, and contribute to the

protocol's long-term roadmap from both a technical and business perspective


---

What's Already Built


You are not walking into a whitepaper. You are walking into a working protocol:


- 20 Solidity contracts: PPBToken, DataStream, ReputationEngine (v0.5),

PQSVerifier, OracleConsensus, ValidatorRegistry, ArbitrationController,

DividendPool, BurnEngine, and more

- Rust indexer + libp2p relay network, fully synced on Arbitrum Sepolia

- TypeScript autonomous validator agent (open-source, live on npm)

- MCP server — [email protected], 13 tools, agent-native

- x402 payment gateway

- Next.js marketplace UI (Mercat)

- Pre-audit baseline: Slither clean, Mythril clean across 8 core contracts


---

Qualifications


Required:

- Deep Solidity security expertise — you have found bugs in production contracts,

not just written them

- Hands-on experience coordinating or participating in formal smart contract audits

- Strong software architecture fundamentals — able to design and scale complex,

distributed systems

- Proficiency in blockchain-specific security: EVM attack vectors, economic

exploits, cross-contract risk

- Experience with Ethereum or Layer 2 solutions, ideally Arbitrum

- Comfortable reading and writing Rust and TypeScript — the off-chain stack is not

optional here

- Strong project management instincts — you can own a timeline, identify risk

early, and ship under pressure

- Excellent critical thinking and communication skills — you'll be the technical

voice to auditors, investors, and external partners


Strongly preferred:

- Prior experience at a security firm (Trail of Bits, Spearbit, Code4rena,

Sherlock) or a DeFi protocol that shipped to mainnet

- Opinions on mechanism design — slashing schedules, commit-reveal schemes, stake

economics

- Familiarity with web3, agent-driven ecosystems, or AI infrastructure

- Background in Computer Science, Engineering, or equivalent technical field


---

Why Now


The x402 Foundation (Coinbase, Cloudflare, Google, Visa, Anthropic, Vercel)

standardized agent payment rails in 2025. MCP is the universal agent tool

interface. BYTE was designed for both from day one. The market is forming now — the

window for the first-mover data marketplace is open and won't stay open.


The audit is the gate. Mainnet is the unlock. This role exists to get us through

it.


---

Compensation


Equity-first co-founder role. Comp details are discussed directly and honestly —

structure depends on funding stage and what you need. If you need a salary to

operate, we will have that conversation openly.


---

To Apply


DM Mark Zhurbin on LinkedIn or X (@NotMarkZ) with two things: what you've audited or

  • broken, and why this problem is worth your time. No cover letter needed.

How do I get a job at DeFi?

Getting a job in the DeFi (decentralized finance) industry can be a competitive process, but there are a few steps you can take to increase your chances of finding a job in this field:

  1. Build up your skills and knowledge: To work in DeFi, you'll likely need to have a strong understanding of blockchain technology, as well as other related technologies such as smart contracts and cryptocurrency. Consider taking online courses or earning a degree in a relevant field to build up your skills and knowledge.
  2. Network with industry professionals: Attend meetups and conferences related to DeFi and make connections with professionals in the industry. Networking can be a valuable way to learn about job openings and get your foot in the door at a DeFi company.
  3. Create a strong online presence: Many DeFi companies will look at your online presence (such as your LinkedIn profile and personal website) when considering you for a job. Make sure to showcase your skills and accomplishments online and keep your profile up to date.
  4. Apply for relevant job openings: Keep an eye out for job openings at DeFi companies and apply for positions that align with your skills and experience. Apply for DeFi Jobs without Experience. Tailor your resume and cover letter to the specific job you're applying for and highlight any relevant experience or skills you have.
  5. Consider internships or volunteer work: DeFi Internships or volunteer work can be a great way to get your foot in the door and gain valuable experience in the DeFi industry. Many companies also offer internships to students, so consider applying for an internship if you're still in school.
  6. Be persistent: keep trying if you don't get a job right away. It can take time to find the right opportunity, but with the right skills and determination, you can land a job in the DeFi industry.