ai analyst backend bitcoin blockchain community manager crypto cryptography cto customer support dao data science defi design developer relations devops discord economy designer entry level erc erc 20 evm front end full stack gaming ganache golang hardhat intern java javascript layer 2 marketing mobile moderator nft node non tech open source openzeppelin pay in crypto product manager project manager react refi research ruby rust sales smart contract solana solidity truffle web3 py web3js zero knowledge
| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Apex Digital - Web3 Fund | United States | $90k - $150k | |||
Bright Vision Technologies | United States | $39k - $65k | |||
Qredo | Madrid, Spain | $64k - $87k | |||
Qredo | Madrid, Spain | $67k - $102k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
Qredo | Lisbon, Portugal | $77k - $100k | |||
Seedify | Remote | $72k - $93k | |||
Seedify | Remote | $72k - $93k | |||
Qredo | Paris, France | $90k - $150k | |||
Qredo | Madrid, Spain | $63k - $80k | |||
Qredo | Lisbon, Portugal | $57k - $112k | |||
Qredo | Lisbon, Portugal | $31k - $81k | |||
Qredo | Amsterdam, Netherlands | $98k - $120k | |||
Qredo | Madrid, Spain | $81k - $90k | |||
Qredo | Madrid, Spain | $86k - $100k | |||
Binance | New York, NY, United States |
|
Apex Digital - Web3 Fund
$90k - $150k estimated
Apex Digital is a leading Investment VC in the crypto industry, dedicated to supporting and accelerating the growth of cutting-edge blockchain startups. We are currently seeking a talented Smart Contract Developer to join our team and contribute to the development of secure and efficient smart contracts for our blockchain projects.
Responsibilities:
- Design, develop, and implement smart contracts on various blockchain platforms such as Ethereum, Binance Smart Chain, or others as required.
- Collaborate with cross-functional teams including software engineers, blockchain architects, and product managers to define smart contract requirements and functionalities.
- Ensure the security, reliability, and scalability of smart contracts by conducting thorough testing and code reviews.
- Optimize smart contract performance and gas consumption to enhance efficiency and reduce costs.
- Stay up-to-date with the latest developments in blockchain technology and smart contract best practices, and actively contribute to the team's knowledge sharing initiatives.
- Troubleshoot and debug issues related to smart contract functionality, performance, and integration with other components of the blockchain ecosystem.
- Document smart contract designs, implementation details, and testing procedures for future reference and knowledge transfer.
Requirements:
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- Solid understanding of blockchain technology and its underlying concepts.
- Proficiency in programming languages used for smart contract development such as Solidity, Vyper, or others.
- Experience with blockchain platforms such as Ethereum, Binance Smart Chain, or similar.
- Strong knowledge of smart contract security best practices and industry standards.
- Familiarity with decentralized finance (DeFi) protocols, token standards (e.g., ERC-20), and other blockchain-related technologies.
- Ability to work independently as well as in a team-oriented, collaborative environment.
- Strong problem-solving and analytical skills, with a keen attention to detail.
- Excellent communication and interpersonal skills.
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:
- balanceOf(address): Returns the token balance of a specific address.
- transfer(address to, uint256 value): Transfers tokens from the caller's address to the specified address.
- approve(address spender, uint256 value): Approves a specific address to spend a certain amount of tokens on behalf of the caller.
- allowance(address owner, address spender): Returns the amount of tokens approved by the owner that the spender can transfer.
- User1 owns 500,000 ABC Tokens.
- User2 wants to buy 100 ABC Tokens from User1.
- User1 approves User2 to spend up to 100 ABC Tokens on her behalf.
- User2 calls the transferFrom() function with User1's address, his own address, and the value of 100 tokens.
- The transferFrom() function deducts 100 tokens from User1's balance and adds them to User2's balance.