Full-Stack Web3 Developer for MERN/Bittensor Project

# Senior Web3 Full-Stack Developer — MERN / Bittensor We are looking for a highly skilled **Web3 Full-Stack Developer** to join our remote engineering team. We are looking for someone with strong full-stack engineering skills and real-world experience building Web3 and blockchain applications. ## Requirements ### Required * Strong React / TypeScript experience * Strong Node.js / Express experience * MongoDB / Mongoose * REST API development * Git / GitHub * Linux * Web3 / blockchain development experience * Understanding of wallets, transactions, RPC, events, and smart contracts * Strong problem-solving skills * Ability to work independently ### Preferred * Bittensor experience * Bittensor subnet / miner / validator experience * Smart contract development * Ethereum / EVM experience * DeFi experience * Docker * VPS/cloud deployment * Blockchain data/indexing experience ## Technical Assessment Shortlisted candidates will be asked to complete a **small technical assessment project**. The project is a **MERN + Web3 application** designed to evaluate practical engineering skills. The project will run locally on your computer and will not require: * Production blockchain credentials * Private keys * TAO * Paid APIs * Cloud infrastructure * GPU * Special company access You will receive a working starter project and a set of requirements to implement. The assessment evaluates: * React / TypeScript * Node.js / Express * MongoDB * REST API design * Authentication and security * Testing * Code architecture * Problem solving * Web3/Bittensor understanding * Code quality **Expected time:** approximately 1–2 hours. Candidates should submit their completed work through GitHub. ## Technical Discussion Candidates who perform well in the assessment will have a short **20-minute technical discussion**. During the discussion, you may be asked to: * Explain your implementation * Explain your architecture decisions * Discuss security considerations * Explain how you would improve the project * Answer technical Web3/Bittensor questions The purpose is to understand your technical thinking and verify your understanding of your submitted work. ## Responsibilities Depending on experience, you may work on: * Web3 applications * Bittensor infrastructure * Validator/miner-related systems * Blockchain APIs * Node.js backend services * React dashboards * Smart-contract integrations * Blockchain data processing * Internal developer tools * Production infrastructure ## Ideal Candidate We are looking for someone who: * Can work independently * Writes clean, maintainable code * Understands backend architecture * Has strong React/TypeScript skills * Has real Web3 development experience * Can troubleshoot complex technical problems * Understands security * Can explain technical decisions clearly * Builds production-quality software ## How to Apply Please provide: 1. GitHub profile 2. 2–3 relevant projects you personally built 3. Web3/blockchain experience 4. Bittensor experience, if any 5. Experience with React, Node.js, TypeScript, and MongoDB 6. Hourly rate 7. Availability 8. Brief description of the most technically difficult project you have built ## Screening Questions **1. Which Bittensor subnets have you worked with, if any? What exactly did you build or operate?** **2. Describe a Web3 project where you were responsible for both frontend and backend development. What was your specific contribution?** **3. If a Node.js service starts processing incorrect blockchain data, how would you investigate the problem?** **4. What security measures would you implement in a Node.js Web3 application?** **5. Please provide a GitHub repository demonstrating your strongest engineering work and explain your personal contribution.** ## Hiring Process **Application → Screening → Technical Assessment → Code Review → 20-Minute Technical Discussion → Final Decision → Contract** We are looking for a strong long-term developer who can contribute to technically challenging Web3 projects.