Javascript Jobs in Web3

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Job Position Company Posted Location Salary Tags

Udelta

Remote

$87k - $87k

Bitpanda

Bucharest, Romania

$85k - $115k

Avalabs

Remote

$143k - $178k

Dfinity

Remote

$67k - $70k

Dfinity

Remote

$36k - $70k

3METAD

San Jose, CA, United States

$87k - $100k

Klink Finance

Remote

$87k - $110k

Serotonin

Chicago, IL, United States

$75k - $105k

Bitdeer Technologies Group

Singapore, Singapore

$84k - $86k

arhs

Luxembourg, Luxembourg

$90k - $100k

Zengo

Tel Aviv, Israel

$105k - $120k

Zengo

Tel Aviv, Israel

$105k - $120k

Klink Finance

Remote

$87k - $93k

Village Labs

Atlanta, GA, United States

$106k - $114k

Udelta
$87k - $87k estimated
Remote
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About the company and the project:

Dynamic IT software development company specializing in IT development and project management services mostly in web3 industry in the search for aBlockchain Developer. We support digital asset exchanges, copy trading platforms, B2Copy platforms, gaming applications, Web3, and blockchain applications, delivering high-quality, scalable, and secure solutions.

Our expertise spans across industries, delivering measurable results for clients worldwide. Join our dynamic team of professionals and contribute to impactful projects that shape the future of business.

You are invited to join the team andwork in the Dubai office.

Your tasks on the position:

  • Develop, test, and deploy secure and efficient smart contracts using Solidity
  • Design and implement blockchain architecture and infrastructure for various use cases
  • Write clean, reusable, and well-documented code following industry best practices
  • Collaborate with front-end and back-end developers to integrate blockchain functionality with applications
  • Conduct rigorous testing and debugging to ensure the security and functionality of smart contracts
  • Stay up to date with the latest trends and advancements in blockchain technology
  • Provide technical insights and recommendations for blockchain solutions

Requirements:

  • 3+ years of experience in blockchain development with a strong focus on smart contracts
  • Demonstrated ability to write secure, gas-efficient, and optimized smart contracts
  • Hands-on experience with blockchain frameworks like Ethereum, Polygon, or other EVM-compatible chains
  • Deep understanding of Layer 2 blockchain architectures (e.g., rollups, zkEVMs, optimistic rollups) — including bridging, state commitment, and fraud/validity proofs
  • Solid grasp of blockchain security best practices (e.g., reentrancy, access control, gas efficiency, upgradability patterns)
  • Ability to design scalable on-chain/off-chain architectures, including interaction with relayers, oracles, and decentralized storage
  • Strong understanding of blockchain concepts, including consensus algorithms, token standards (ERC-20, ERC-721, ERC-1155), and decentralized applications (dApps)
  • Familiarity with tools like Truffle, Hardhat, Remix, and Ganache
  • Proficient in programming languages such as JavaScript, TypeScript, or Python for blockchain integration
  • Experience with version control systems like Git
  • English ĐĄ1+

Will be an advantage:

  • Experience with DeFi protocols, NFTs, or Web3 development, ideally with DePin too
  • Familiarity with layer-2 scaling solutions and cross-chain communication protocols
  • Knowledge of Docker, Kubernetes, or similar container orchestration tools
  • Exposure to cloud platforms such as AWS, Azure, or Google Cloud
  • Participation in open-source blockchain projects or contributions to the blockchain community

Benefits:

  • Regular salary increases
  • Career growth possible faster than in different companies
  • Paid sick leave
  • Medical insurance
  • Residential UAE visa

What does a JavaScript developer in web3 do?

A JavaScript developer in web3 would likely be responsible for developing applications and other software using the JavaScript programming language within the web3 ecosystem

Web3 refers to the third generation of web technology, which emphasizes the use of decentralized technologies such as blockchain and distributed ledger systems

This means that a JavaScript developer in web3 would need to be familiar with these technologies and how to use them in the development of applications and other software

They may also be responsible for maintaining and updating existing web3 applications, as well as working with other members of a development team to create new web3 applications.