ERC-20 Jobs

182 jobs found

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Job Position Company Posted Location Salary Tags


United States

$30k - $155k

Stealth Blockchain Project

Washington, United States

$100k - $150k


United States

$70k - $170k



$70k - $200k


Mexico City, Mexico

$80k - $170k




Austin Werner Ltd

Minneapolis, MN, United States

$30k - $115k


Istanbul, Turkey

$80k - $165k

Infinite Reality

San Francisco, CA, United States

$50k - $150k


United States

$60k - $225k


United States

$66k - $180k

Vivo (Telefônica Brasil)

Sao Paulo, Brazil

$60k - $120k


Berlin, Germany

$60k - $150k

Infinite Reality

San Francisco, CA, United States

$50k - $150k

Digital Marketing Company

Los Angeles, CA, United States

$50k - $150k


San Francisco, CA, United States





Lviv, Ukraine

$67k - $165k

United States

$40k - $67k

Mythical Games

Los Angeles, CA, United States

$36k - $185k

Parallel Finance

San Francisco, CA, United States

$67k - $140k

DeFiner Inc

Minneapolis, MN, United States

$80k - $150k


San Francisco, CA, United States

$70k - $200k


United States

$80k - $100k


United States

$15k - $70k

$30k - $155k*
United States California US

About Our Client: This privately-owned business is changing the world of banking by introducing a technology-driven bank relying on smart contracts and blockchain.

Job Description: Looking for an experienced smart contract blockchain developer preferably from a banking background and having 3+ years of experience within the blockchain industry.

Roles and Responsibilities:

• Ensure the highest level of security measures in the system

• Ensure excellent architecture and design for all features

• Architect new features

• Design, code and deploy smart contracts on mainnet

• Review code was written by other developers

• Ensure full automated testing of smart contracts

Basic Qualifications:

• A degree in computer science or relevant field or comparable experience

• Experience in blockchain, Ethereum, and Solidity, ERC20, OpenZeppelin libraries, working with mainnet

• Extensive experience in working with distributed file systems or databases and/or designing distributed systems.

Preferred Qualifications:

• Ability to architect end to end solutions

• Firm grasp of object-oriented programming

• Ability to solve complex problems and express solutions in layman’s terms

• Excellent oral and communication skills

• Coding skills in at least one of the following languages: C++, Java, TypeScript.

When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTguMjA2LjkyLjI0MAM


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.