Openzeppelin Web3 Jobs in United States

62 jobs found

web3.career is now part of the Bondex Logo Bondex Ecosystem

Receive emails of Openzeppelin Web3 Jobs in United States
Job Position Company Posted Location Salary Tags

Polar Bear Systems.

United States

$175k - $240k

Fmr

United States

$86k - $150k

Seamless Protocol

United States

$72k - $75k

Agora

San Francisco, CA, United States

$105k - $180k

Agora

San Francisco, CA, United States

$54k - $72k

Rome Protocol

Los Angeles, CA, United States

$8000k - $13000k

Trilogy International

New York, NY, United States

$87k - $100k

Trilogy International

New York, NY, United States

$63k - $72k

Elite Call Support Center

United States

$170k - $220k

BitKernel

Austin, TX, United States

$72k - $75k

Plexus Resource Solutions

New York, NY, United States

$150k - $250k

21.co

New York, NY, United States

$150k - $200k

eBay Deutschland

United States

$72k - $100k

Calyptus

San Francisco, CA, United States

$67k - $80k

Stellar Staffing Solution

San Francisco, CA, United States

$67k - $80k

Polar Bear Systems.
$175k - $240k estimated
MA Cambridge US
Apply

Company Description

Polar Bear Systems (PBS) is a Web(n) Blockchain development organization founded in July 2019. PBS aims to bring clients to a below-freezing chilled state by providing innovative solutions. The company strives to offer solutions that elevate clients to their maximum potential.


Role Description

This is a volunteer hybrid position for a Blockchain Cybersecurity Specialist at Polar Bear Systems, located in Cambridge, MA, with the option for remote work. The Specialist will be responsible for day-to-day tasks related to application security, cybersecurity, network security, and information security in the blockchain domain.


Key Responsibilities

  • Proven experience in blockchain security, penetration testing, or secure protocol design.
  • Hands-on experience with smart contract auditing tools (MythX, Slither, Foundry, Hardhat).
  • Strong understanding of:
  • EVM-based chains (Ethereum, BSC, Polygon)
  • Layer 2 rollups and cross-chain bridges
  • Consensus mechanisms (PoW, PoS, PoH, PoA)
  • Familiarity with Solidity, Rust, or Go.
  • In-depth knowledge of cryptographic protocols (SHA, ECDSA, BLS, Merkle Trees).
  • Knowledge of Web3 authentication and wallet infrastructure (Metamask, WalletConnect, Ledger).
  • Experience with DevSecOps practices and CI/CD pipelines.
  • Strong communication and documentation skills.

Qualifications

  • Experience with ZK-SNARKs, MPC, or post-quantum cryptography.
  • Background in traditional cybersecurity (CISSP, OSCP, CEH a plus).
  • Contributions to blockchain or open-source security projects.
  • Familiarity with KYC/AML, zero-knowledge identity, and compliance tooling.

Tools & Technologies You’ll Use

  • Solidity, Rust, Go
  • Hardhat, Foundry, Mythril, Slither
  • Wireshark, Metasploit, Burp Suite
  • OpenZeppelin, Certora, Chainlink, Forta
  • GitHub, GitLab CI/CD, AWS, Docker, Kubernetes

Why Join Us

  • Be at the frontier of Web3 security innovation
  • Competitive compensation + token equity (if applicable)
  • Collaborative, fully remote culture with growth opportunities
  • Access to high-impact projects across DeFi, DAOs, NFTs, and L2s
⬇
Apply Now