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Hi, I'm ketty nuemann a Senior Blockchain Developer with 6+ years building production-ready Layer 1 blockchains, Web3 dApps, and DeFi platforms across EVM, Cosmos SDK, Solana, XRPL, and more.

Whether you need a custom blockchain from scratch, a Cosmos SDK chain with IBC, a cross-chain bridge, DEX, staking platform, or a full Web3 dApp I deliver clean, secure, deployment-ready solutions.

What I Build:

• Custom Layer 1 blockchain (EVM, Cosmos SDK, Evmos, Substrate)
• Blockchain explorer (Blockscout, Big Dipper, Ping.pub)
• Cross-chain bridge (LayerZero, Wormhole, IBC, Hyperlane)
• DEX, DeFi dApp, token presale, launchpad
• Smart contracts (Solidity, Rust, CosmWasm)
• Wallet integration, staking, governance modules
• NFT marketplace, P2E game, NFT minting
• Tech Stack: Cosmos SDK · Evmos · Ethermint · Go Ethereum (geth) · Solidity · Rust · Solana · XRPL · React · Node.js

Why Choose Me:

• Fast delivery & clear communication
• Secure, production-grade code
• Multi-chain expertise: EVM, Cosmos, Solana, TON, Tron
• Full documentation & post-delivery support

Message me before ordering I'll review your requirements and send a custom plan within 1 hour.

Let's build your blockchain. Order now!