CoinCROWD - Senior Blockchain Developer - NFT (5-10 yrs)

CoinCROWD is looking for a Blockchain Developer

Who we are





CoinCROWD is building the future of crypto spending with CROWD Wallet, a secure, user- friendly wallet designed for seamless cryptocurrency transactions in the real world. As the crypto landscape continues to evolve, CoinCROWD is at the forefront, enabling everyday consumers to use digital currencies like never before.

We're not just another blockchain startup-we're a team of innovators, dreamers, and tech geeks who believe in making crypto fun, easy, and accessible to everyone. If you love solving complex problems and cracking blockchain puzzles while sharing memes with your team, you'll fit right in!

What you'll be doing :

As a key member of our engineering team, you will be responsible for designing, developing, and maintaining robust, scalable, and high-performance backend systems that support CoinCrowd's innovative products.

You will be responsible for :

- Designing and implementing blockchain-based applications using QuickNode, Web3Auth, and Python or Node.js.

- Developing and maintaining smart contracts and decentralized applications (dApps) with a focus on security and scalability.

- Integrating blockchain solutions with CROWD Wallet and other financial systems.

- Collaborating with frontend developers, product managers, and other stakeholders to deliver seamless crypto transactions.

- Ensuring high availability and performance of blockchain infrastructure.

- Managing on-chain and off-chain data synchronization.

- Researching and implementing emerging blockchain technologies to improve CoinCROWD's ecosystem.

- Troubleshooting and resolving blockchain-related issues in a timely manner.

- Ensuring compliance with blockchain security best practices and industry regulations.

- Contributing to architectural decisions and best practices for blockchain development.

What we need from you :

We're looking for dynamic, self-motivated individuals who are excited about shaping the future of crypto spending :

- This will be a Full time role

- May require occasional travel for conferences or team meetups (Yes, we love those!).

- Bonus points if you can beat our CTO in a game of chess or share an awesome crypto meme!

- Location - WFH initially

What skills & experience you'll bring to us :

- 5 to 10 years of experience in software development, with at least 3+ years in blockchain development.

- Strong knowledge of QuickNode and Web3Auth for blockchain infrastructure and authentication.

- Proficiency in Python or Node.js for backend development.

- Experience in developing, deploying, and auditing smart contracts (Solidity, Rust, or equivalent).

- Hands-on experience with Ethereum, Polygon, or other EVM-compatible blockchains.

- Familiarity with DeFi protocols, NFT standards (ERC-721, ERC-1155), and Web3.js/ Ethers.js.

- Understanding of blockchain security best practices and cryptographic principles.

- Experience working with RESTful APIs, GraphQL, and microservices architecture.

- Strong problem-solving skills and ability to work in a fast-paced startup environment.

- Excellent communication skills and ability to collaborate effectively with cross-functional teams.