Web3 Backend Developer

Project Description:

We are developing a production-ready Web3 investment platform that enables users to invest in real-world assets ) using fractionalized NFTs.

The frontend is already 100% complete. We are now seeking an experienced backend and smart contract developer to implement the backend workflows, integrate smart contracts, and build the admin/superadmin portals.
Full details, smart contract files, and live frontend link will be shared privately with shortlisted candidates.

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Scope of Work:
Backend Development
• Preferred: Node.js (Express)
• DB: MongoDB or PostgreSQL
• JWT-based authentication for admin/user roles
• APIs to handle:
• NFT minting & investments
• ROI management (auto/manual)
• Insurance vault payouts
• Carbon offset leaderboard
• Certificate engine (PDF + IPFS)
• Marketplace listing and buying
• Token rate fetching (INR ↔ USDT ↔ token)
• User dashboard + referral engine
Smart Contract Integration
• Smart contracts already finalized:
• NFT minting, vault, ROI, insurance, carbon, KYC, cert engine
• Use ethers.js or web3.py to connect backend to contracts
• Contract address + ABI mapping config
Admin Panels
• Admin panel to:
• Create/edit batches
• Upload legal docs, live feed iframe
• Trigger ROI and insurance payouts
• Export wallet/user data
• SuperAdmin panel to:
• Add/remove admins
• Set global config (token price, APY)
• Platform analytics + controls

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Deliverables:
• Complete backend with smart contract integration
• Admin + SuperAdmin dashboard UIs
• Connection hooks for frontend (already built)
• Documentation + deployment setup

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Ideal Candidate:
• Proven experience in Web3 + backend integration
• Strong with EVM smart contracts (Solidity)
• Can handle both backend logic and smart contract hooks
• Familiar with IPFS, certificate/PDF generation, token flows

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Timeline:

Immediate start preferred. Delivery expected within 2 weeks . Reply with exact price and timeline don’t ask me for price and my budget .