Web3.js Jobs in Web3

352 jobs found

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Job Position Company Posted Location Salary Tags

Web3 Recruit


$200k - $300k

Number Group


$100k - $150k

Uniswap Labs

New York, NY, United States

ChainSafe Systems

Zagreb, Croatia

$140k - $157k

L1 Advisors


$100k - $165k



$60k - $120k


Ny, NY, United States

$125k - $200k

Energy Web


$34k - $70k





$63k - $100k



$91k - $100k


San Francisco, CA, United States

$91k - $100k

Art Blocks Inc.

United States


Miami, FL, United States

$18k - $75k


United States

$88k - $144k

Uniswap Labs

New York, NY, United States

$200k - $220k

Uniswap Labs

New York, NY, United States

$220k - $240k

Ondo Finance


$120k - $200k



$72k - $100k


San Francisco, CA, United States

$87k - $100k


Hong Kong, Hong Kong

$90k - $96k


San Francisco, CA, United States

$72k - $100k

One1 Consulting Group, LLC

United States

$36k - $60k


New York, NY, United States

$54k - $75k

Austin Werner Ltd

Minneapolis, MN, United States

$72k - $75k

Web3 Recruit
$200k - $300k

About Us

The project’s mission is to bring Bitcoin’s unparalleled security to the decentralized world via a new public Cosmos-SDK PoS blockchain and a suite of inter-chain protocols. Our fast-growing team consists of elite scientists and engineers, seasoned marketing and business development professionals, as well as renowned business advisors. Our team culture is open, inclusive, agile, and passionate, and we highly value everyone’s personal growth.

About the Job

Security of the protocols developed at Babylon is of paramount significance, as they will serve as the backbone for an unprecedented shared economy powered by Bitcoin. We are looking for a highly experienced security professional who is paranoid about loopholes and attack vectors at all fronts in decentralized protocols to lead our effort in securing Bitcoin staking technologies we develop. This role requires independent thinking and execution, while coordinating with the research and engineering team members to achieve the security objectives.

Your main responsibilities include:

  • Be the owner of security of all technologies, protocols, and products developed by the team, including potential attack vectors in algorithms, cryptography, code, and deployments.
  • Establish overall security objectives and lead the planning and execution to achieve them
  • Identify external security researchers and work closely with them for security review and analysis
  • Coordinate with the engineering team to establish best security practices in software development cycles
  • Create product launch plans and approve feature rollout based on security considerations
About You

As an experienced security professional, you have seen enough past incidents to understand how important yet how challenging it is to secure decentralized protocols. You are paranoid about anything that might give attackers an edge, yet you are capable of translating all your security concerns into actionable countermeasures. You understand that security needs to be baked into the culture of the team and you are passionate in championing that.


  • Bachelor’s degree in Computer Science, Electrical Engineering, or a related field.
  • Minimum of 3 years' experience in hands-on security analysis and vulnerability discovery for blockchains or DeFi protocols.
  • Good understanding of smart contract languages and their semantics.
  • Good understanding of operational security and security best practices.
  • A track record in identifying past critical vulnerabilities is a strong plus.
  • Fluent in English, with excellent verbal and written communication skills, facilitating clear and effective collaboration across global teams.

What is web.js?

Web3.js is a library that allows developers to interact with a blockchain from their JavaScript code

It is commonly used to access the Ethereum blockchain, but it can be used to interact with other blockchain networks as well

Web3.js provides methods for reading and writing data to the blockchain, as well as for listening to and responding to events on the blockchain

It is an important tool for developers who want to build decentralized applications (DApps) on the Ethereum platform.