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Role: Blockchain Developer
Locations: Charlotte, NC or New York, NY Hybrid (3 days on site and 2 days remote)
Duration: 12+ months
As a Blockchain / DLT Developer, you will collaborate with stakeholders across the business to work on complex technical requirements. You will be responsible for managing multiple engagements, prioritizing and resolving complex problems and escalating as necessary, in a fast-paced environment.
Responsibilities:
- Design and develop blockchain-based applications, smart contracts, and decentralized protocols to address specific business requirements.
- Collaborate with cross-functional teams to identify opportunities for implementing blockchain and distributed ledger technology in various domains, such as finance, supply chain, healthcare, and more.
- Implement and maintain blockchain networks, nodes, and consensus algorithms to ensure data integrity, security, and decentralization.
- Work on blockchain interoperability, scalability, and performance optimization to support high-throughput, low-latency applications.
- Conduct research and development on emerging blockchain technologies, platforms, and protocols to drive innovation and continuous improvement.
- Ensure compliance with regulatory requirements and industry standards for blockchain and DLT implementations, such as data privacy and security regulations.
- Participate in code reviews, testing, and debugging to maintain high-quality, reliable blockchain applications.
- Provide technical guidance and support to other team members and stakeholders on blockchain and DLT-related topics.
- Build high-quality, low latency blockchain applications capable of handling large volumes of transactions.
You are:
- Bachelor’s or master’s degree in computer science, Engineering, or a related field.
- 10+ years of proven experience in developing blockchain-based applications and smart contracts using platforms such as Ethereum, Hyperledger, or other blockchain frameworks.
- Strong understanding of decentralized consensus algorithms, cryptography, and data structures used in blockchain and DLT systems.
- Proficiency in programming languages commonly used in blockchain development, such as Solidity, Go, or Java.
- Familiarity with blockchain development tools, libraries, and frameworks for building and testing decentralized applications.
- Knowledge of blockchain security best practices, cryptography, and secure coding principles.
- Experience with tokenization, token standards (e.g., ERC-20, ERC-721), and decentralized finance (DeFi) protocols is advantageous.
- Understanding of blockchain scalability, interoperability, and performance optimization techniques.
- Excellent problem-solving skills, analytical thinking, and the ability to address complex challenges in blockchain development.
- Effective communication and teamwork skills, with the ability to collaborate with cross-functional teams and stakeholders.
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.