RedValley, a rapidly growing company in Medellín, is currently seeking a skilled Backend Developer to join our venture with MemeCoin . As a Backend Developer , you will be working on leveraging cutting-edge blockchain technology to build scalable, secure, and efficient solutions. This role requires someone with expertise in Solidity and Rust to join our team and contribute to the development of next-generation decentralized applications (dApps) and blockchain infrastructure. What You'll Do Design, develop, and maintain backend services and smart contracts using Solidity and Rust Implement blockchain-based solutions, ensuring scalability, security, and optimal performance. Collaborate with front-end developers, blockchain architects, and other team members to integrate back-end services with decentralized applications. Write high-quality, clean, and efficient code with proper documentation. Participate in code reviews, testing, and debugging to ensure the reliability of delivered features. Contribute to the design and implementation of APIs and data models for seamless interaction with blockchain systems. Stay updated on the latest developments in blockchain technology, decentralized finance (DeFi), and Web3 ecosystems. What You'll Bring To The Team B2 + English Proven experience as a Backend Developer, with a focus on blockchain technology. Proficiency in Solidity for developing Ethereum-based smart contracts. Experience with Rust, particularly for building blockchain applications or smart contracts on platforms like Polkadot, Solana, or similar. Strong understanding of blockchain principles, decentralized networks, and cryptographic techniques. Familiarity with tools such as Hardhat, Truffle, or Remix for smart contract development. Knowledge of blockchain frameworks (e.g., Ethereum, Polkadot, Solana). Experience with database technologies (SQL and NoSQL). Familiarity with version control systems like Git. Experience in tokenomics and decentralized finance (DeFi) protocols. Knowledge of other programming languages such as Go or Python. Hands-on experience with containerization and orchestration tools (e.g., Docker, Kubernetes). Familiarity with decentralized identity and authentication mechanisms. We Offer You Opportunities to work in a fast-paced startup environment supportive of teamwork, ownership, and purpose. Flexible working environment One-of-a-kind company values and teamwork culture as well as a meaningful mission and challenging work. Job Type: Full-time Application Question(s): Are you experienced in using tools such as Hardhat, Truffle, or Remix? Do you have experience with frameworks such as Ethereum, Polkadot, or Solana? What are your salary expectations for a contractor position in COP? Experience: Blockchain Technology: 2 years (Preferred) Solidity: 2 years (Preferred) Rust: 2 years (Preferred) SQL & NoSQL: 2 years (Preferred) Tokenomics: 1 year (Preferred) Python or Go: 2 years (Preferred) Docker or Kubernetes: 2 years (Preferred)#J-18808-Ljbffr