Solidity Jobs

I have an almost–finished Web3 application running on BNB Smart Chain and need an experienced engineer to wrap up the last mile. The heavy lifting is on the contract side, but a clean hand-in demands tight coupling with the existing React/TypeScript frontend. What still needs doing • Write production-ready smart contracts for a referral & level system, staking and vesting mechanics, a level-gated NFT mint, and the accompanying ATA utility token. • Deploy, test, and wire those contracts into the current codebase through Wagmi / connectors. • Guarantee seamless Metamask, WalletConnect, and Trust Wallet interaction, including clear transaction states and error handling. • Close out a handful of UI bugs, polish the UX, and verify that every on-chain ac...

I have a new Web3 idea ready to move from concept to code and I’m seeking an experienced blockchain developer to guide and build the entire solution with me. Because the project is still early-stage, I’m open on the specific chain, tech stack, and even the exact feature set—we’ll define those details together during an initial discovery call. What I do know is that the end product will rely on smart contracts, a dApp front end, and secure wallet interaction, so familiarity with Solidity or similar contract languages, , and modern front-end frameworks is essential. Here’s how I’d like to structure our collaboration: – First, a short technical workshop where you assess my concept, recommend an appropriate blockchain (Ethereum, BSC, Polkadot, or ...

I need someone to audit my token code I created with OpenZeppelin and AI? I implemented taxes and max wallet but I don't see taxes into my taxes wallets. I need someone to audit and maybe fix the issues and explain it. It is one hour of work I guess.

I want to launch a simple USDT Stable Coin and I want it live on any of the three major networks: BEP20 (Binance Smart Chain), ERC20 (Ethereum), and TRC20 (Tron). The token only needs the core Tether behaviour—holders must be able to transfer tokens and see their main & asset balance with standard calls, original Logo. If you already have experience shipping tokens on any of these networks and can complete the third quickly, let me know—speed and reliability matter more than extra features.

I’m preparing to launch a brand-new BEP-20 asset on the BNB Smart Chain that mirrors the technical discipline of USDT while remaining an entirely separate token. Here’s what I need from you: • A clean, audited-style smart contract written in Solidity that compiles under the latest stable version, adheres strictly to the BEP-20 interface, and defaults to 18 decimals. • Flexible placeholders for the name, symbol and total supply; I will confirm those values right before deployment. • Owner-controlled mint and burn functions so I can expand or contract supply as required. • A blacklist / whitelist mechanism to freeze or allow specific addresses when necessary. (Transfer-pause logic is nice to have, so feel free to wire it in behind a boolean flag, but ...

ON-CHAIN MATRIX SYSTEM — UPDATED REQUIREMENTS 1) GENERAL - The system is 100% on-chain, immutable, and permissionless. - Users register once and activate slots sequentially (Slot 1 → Slot 15). - Each slot has a fixed activation price (as defined). - All accounting and payouts are done in the platform token. 2) SLOT STRUCTURE (GLOBAL TREE) - Each slot has ONE global binary tree. - The tree grows indefinitely (no fixed depth, no fixed level count). - Every activation or rebirth for that slot adds a new node to that slot’s global tree. - Placement order is deterministic BFS: top-to-bottom, left-to-right. - Each node has at most 2 children. - Each user can appear multiple times in the same slot tree due to repeat cycles (rebirths). 3) MATRIX CYCLE (30 POSITIONS PER CYCLE) - ...

I need someone experienced with OpenZeppelin and Taxes? The task is to add Taxes and Anti Whale functionality and create my BEP-20 token. I need something simple and working. Please apply only if you can show some tokens portfolio with at least 2 OpenZeppelin contracts.

I want to represent my physical gold holdings on the Binance Smart Chain by issuing a BEP-721 token. The contract must fully comply with the BEP-721 standard so wallets and marketplaces on BSC recognize it, yet go beyond the basics by including three essential capabilities: easy transferability, an on-chain dividend-distribution function that lets me send BNB or BUSD to current holders, and a burn mechanism I alone can trigger when underlying gold is redeemed. Please write clean, well-commented Solidity, test it thoroughly with Hardhat or Truffle, and deploy first to the BSC testnet; after I confirm everything works, walk me through the mainnet deployment. Deliverables 1. Auditable BEP-721 Solidity contract with transferability, dividend payments, and burn controls implemented. 2. Un...

Je souhaite lancer un stablecoin entièrement adossé à une devise, émis et géré sur la blockchain Solana. Votre mission couvre tout le cycle de vie technique : • Concevoir et coder le programme SPL Token qui garantit le peg 1:1, y compris les fonctions de mint/burn et les garde-fous nécessaires. • Mettre en place la logique de gestion des réserves (oracle de prix, comptes de collatéral, contrôles de transparence). • Déployer et tester le contrat sur devnet puis mainnet, avec scripts automatisés. • Fournir une documentation claire et un guide d’intégration pour portefeuilles et plateformes d’échange. • Anticiper les bonnes pratiques de sécur...

Hi, I’m building a blockchain/Web3 project and I’m looking for a skilled blockchain developer who can help design and build the project using blockchain technology and Web3. I’d love to connect and explore a potential collaboration. Please let me know if you’re interested.

My goal is to prove that 50 completely separate Indian embassies can collaboratively train a powerful intrusion-detection model without ever sharing raw traffic logs. Each embassy keeps its packets local, trains an IDS in Python, then ships only the updated weights to a permissioned blockchain that averages them and sends back the enhanced parameters. Key points I need turned into code: • Dual-framework training loops: the local agent must be able to switch between PyTorch and TensorFlow so each site runs whichever stack its engineers prefer. • Attack coverage baked into the dataset pipeline: the IDS must correctly classify Malware, Phishing, and DDoS patterns. Synthetic generation for edge cases is fine as long as the final validation shows clear detection rates for all three...

I'm looking for an experienced blockchain developer to create a smart contract on the Binance Smart Chain for a decentralized value proposition (DVP) platform. Essential requirements include: - Automated settlements - Asset transfer Ideal skills and experience: - Proficiency in BSC - Strong smart contract development skills - Experience with automated settlement mechanisms and asset transfer functionalities Please provide relevant past project experience and a timeline for completion.