Erc 20 Jobs in Web3

242 jobs found

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Job Position Company Posted Location Salary Tags

Improbable

London, United Kingdom

$87k - $93k

Improbable

London, United Kingdom

$81k - $100k

VanEck

New York, NY, United States

$87k - $93k

Molecule

New York, NY, United States

$84k - $120k

Molecule

United States

$72k - $90k

molecule.xyz

New York, NY, United States

$90k - $150k

molecule.xyz

Berlin, Germany

$77k - $105k

Molecule

New York, NY, United States

$84k - $120k

molecule.xyz

Berlin, Germany

$98k - $110k

CreatorNation

Chennai, India

$63k - $90k

salesboxai

Remote

$63k - $90k

Udelta

Remote

$87k - $87k

Molecule

New York, NY, United States

$54k - $80k

Improbable
$87k - $93k estimated
London London United Kingdom
Apply

At Improbable, we believe that the next revolution in entertainment and society will come from massive virtual worlds. They will create new economies and opportunities globally, changing not just how we play, but how we work and relate to each other. That’s why we’ve made it our mission to build the next generation of technologies for online multi-user games and simulations.

At Improbable, you are surrounded by people who want to improve everything and everyone around them, and who compel you to improve yourself. We’re motivated by the fulfilment of solving hard problems to achieve something profound and transformative.

Venture Builder

Improbable is a Venture Builder. We are working with leaders to create businesses in AI transformation, the metaverse and web3. We both create businesses from scratch and invest in existing businesses. Our central services teams work with ventures to help them achieve success; including early stage prototyping and initial product development where this role sits.

Your Mission 

As a Principal web3 Solidity Engineer at Improbable, you will work with web3 Ventures to help them get to market faster. You will work with their leadership team, to design, prototype and launch initial versions of their dApps. This is a hands-on, strategic role where you will collaborate with executives, working all the way from identifying customer problems to shipping real dApps used in the community. 

What You’ll Be Doing

  • Architect, build, launch and maintain dApps - from concept to being used by the community

  • Build on-chain logic in smart contracts, and connect them to web front-ends to be used by crypto natives and novices

  • Work with business leads to define the product roadmap, help set the vision and strategy for the venture, act as a sounding board for venture leadership

  • Working closely with the Somnia Blockchain and providing product feedback to their team of developers

Why You’re Made For This

We are seeking an experienced Web3 Engineer with experience on EVM based smart contracts on Solidity, Web3 JS/TS libraries to perform contract interactions with frontend and backend systems as well as experience with creating and interacting with The Graph. 

  • You’ve shipped multiple production-grade dApps built using Solidity.

  • You have strong hands-on skills with the blockchain development framework Foundry 

  • You’ve shipped webapps built with typescript (preferably react, next.js) and used wagmi hooks for smart contract integrations.

  • You have a deep understanding of blockchain architecture, token standards (ERC-20, ERC-721, ERC-1155) and non-compliant versions of the standard (e.g. USDC)

  • Knowledge of Solidity foundational best practices and most common security vulnerabilities.

  • You thrive when solving complex, ambiguous problems and enjoy working across disciplines to find the best solutions.

  • You are passionate about the web3 community.

Optional skills

In addition to the above the following technical experience is helpful but not essential:

  • Experience using The Graph protocol to create Subgraphs on smart contracts and/or designing smart contracts for targeting optimal indexability

  • Experience in the DeFi ecosystem; in particular swapping protocols (e.g. UniswapV2 or V3) and/or lending protocols (e.g. AAVE)

  • Awareness of Solidity fuzz testing, Slither and/or Mithril 

  • Hardhat testing framework

While we think the above experience could be important, we’re keen to hear from people that believe they have valuable experience to bring to the role. If you identify with the team and mission, but not all of our requirements, then please still apply.

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What is ERC20 example?

ERC20 is a standard for fungible tokens on the Ethereum blockchain

Here is an example of an ERC20 token

Let's say we create a new ERC20 token called ABC Token with a total supply of 1,000,000 tokens

Each token will be divisible up to 18 decimal places

To implement the ERC20 standard, we will need to define several functions, including:

  1. balanceOf(address): Returns the token balance of a specific address.
  2. transfer(address to, uint256 value): Transfers tokens from the caller's address to the specified address.
  3. approve(address spender, uint256 value): Approves a specific address to spend a certain amount of tokens on behalf of the caller.
  4. allowance(address owner, address spender): Returns the amount of tokens approved by the owner that the spender can transfer.
  5. User1 owns 500,000 ABC Tokens.
  6. User2 wants to buy 100 ABC Tokens from User1.
  7. User1 approves User2 to spend up to 100 ABC Tokens on her behalf.
  8. User2 calls the transferFrom() function with User1's address, his own address, and the value of 100 tokens.
  9. The transferFrom() function deducts 100 tokens from User1's balance and adds them to User2's balance.