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Quiero desarrollar un contrato inteligente en la red Ethereum que sirva como núcleo de una plataforma de intercambio. Lo que necesito • Funciones básicas de depósito y retiro de tokens ERC-20. • Lógica de emparejamiento de órdenes simple (limit y market) dentro del contrato. • Manejo seguro de balances internos y liquidación de operaciones. • Eventos para que el front-end pueda escuchar actualizaciones en tiempo real. Requisitos técnicos – Código en Solidity, compatible con la versión estable más reciente. – Buenas prácticas: uso de OpenZeppelin, patrones de control de acceso y prevención de reentrancy. – Comentarios claros y documentación que...

TRC-20 Flash USDT Developer Needed I’m looking for an experienced TRON / TRC-20 Solidity developer to develop a custom Flash USDT TRC-20 project The developer should have strong experience with: TRC-20 smart contracts Flash USDT / token simulation mechanics TRON blockchain & wallet integration Transaction and balance logic Smart-contract testing and security TronLink / Trust Wallet compatibility DEX and liquidity integration The project will require development, testing, deployment, source-code verification, and complete documentation. If you have previous experience with Flash USDT TRC-20 projects, please send your portfolio, experience, estimated timeline, and price. ( Not Mandtory ) If you don’t fully understand the functionality I’m looking for, mes...

I manage several Telegram channels focused on discovering and promoting cryptocurrency-based games and crypto gaming projects. I’m looking for an experienced Telegram growth marketer who can help increase our subscriber base with real cryptocurrency users who are genuinely interested in gaming, blockchain projects, and new crypto-based platforms. The objective is not simply to increase subscriber numbers. I want to build Telegram channels with an active, relevant audience that can later be used to promote crypto gaming projects. What I’m Looking For The ideal freelancer should be able to: Attract real Telegram users from cryptocurrency, blockchain, Web3, and crypto gaming communities. Use Telegram group-to-group promotion, cross-promotion, community partnerships, influence...

I’m building a Polymarket-style, binary-outcome prediction market on Solana and I need a production-ready smart contract written in Rust with the Anchor framework. Everything must first ship to devnet for testing and, once accepted, deploy seamlessly to mainnet. Core logic • Users can create a market, deposit liquidity, trade shares, and—once an oracle pushes the final result—have winnings distributed automatically. • Each action needs to emit precise events so my React/TypeScript frontend can stay perfectly in sync. Creator incentives Beyond the standard flow I want an incentive layer: market creators should earn a bonus that unlocks when their market crosses a predefined total transaction volume threshold. If you have ideas for complementary mechanis...

Blockchain Event — Messaging, Positioning, Media & PR Specialist We are looking for an experienced Communications / PR / Media Relations freelancer to support the pre-event communications campaign for an upcoming blockchain/Web3 event in Malaysia. The engagement is for approximately 1 month, leading up to the event. We are looking for someone who can take ownership of the communications narrative and execute a targeted regional media and PR campaign — not simply create generic social media content or distribute a press release. Scope of Work 1. Messaging & Positioning We need support in developing the event's communications and messaging framework, including: Core event value proposition Event positioning and differentiation Key talking points Messagin...

I need an engineer who can take the current TRON code-base and CLONE it into a clean, standalone network that runs on just three validator nodes, using Delegated Proof of Stake (DPoS) as its consensus. The goal is to have a lightweight but fully functional chain that preserves TRON’s performance advantages while letting me control every aspect of the environment. Key capabilities I want built in from day one are smart-contract execution (Solidity-compatible), on-chain token creation/management, and a governance layer so stakeholders can vote on upgrades or parameter changes. I do not have a rigid block-time requirement; please recommend the most practical interval for a three-node DPoS setup and be ready to justify the choice from a throughput and finality standpoint. I expect the ...

I'm looking for an experienced blockchain developer to create a decentralized application (DApp) on the TRC20 platform. The primary functionality of this DApp will be smart contracts. Ideal skills and experience: - Proficiency in TRC20 and related technologies - Strong knowledge of smart contract development - Experience with DApp architecture and deployment - Familiarity with security best practices in blockchain development - Ability to write clear, maintainable code and documentation Please provide examples of previous work and relevant certifications.

I’m looking for help opening fresh accounts on a major cryptocurrency exchange through my referral link. After you register with the code I supply, you’ll need to pass the platform’s full KYC verification. Once the exchange confirms your KYC status, I will transfer 30 USDT to the new wallet so the account shows an initial deposit; for every account that reaches this milestone you’ll earn an additional 10 USD in compensation. The exchange name, referral link, and any specific KYC instructions will be shared privately. You must use legitimate, verifiable personal documents that meet the exchange’s standards—usually a government-issued photo ID, recent proof of address, and a selfie for facial verification. Accounts must be unique, tied to real identities,...

We have built an extensive portfolio featuring innovative solutions that can shape the future in the fintech and iGaming industries. As a B2B technology provider, unlike traditional markets, We bring five essential pillars: • Decentralization: automated payouts to the user's wallet without human intervention and decentralized participation. • AI: AI avatar for user interaction. • Verifiable RNG: Our RNG can be verified by users independently. • P2P topology: Our P2P model ensures a neutral house with a commission profit structured on all bets, regardless of the game outcome. • Blockchain: Deposits and withdrawals can be restricted to any token on the Solana blockchain, directly improving our clients' tokenomics. We are currently looking to cooperating w...

I’m looking for an experienced Web3 developer to build a small blockchain ecosystem on a testnet within one week. The project will include a simple token launchpad where users can create and deploy their own tokens by entering basic details such as token name, symbol, supply, and decimals. I also need an ERC-20 compatible token system with properly tested and deployed smart contracts on the selected testnet. The project should include a simple DEX/AMM where users can swap supported tokens and add or remove liquidity through basic liquidity pools. A clean and responsive frontend DApp is required with wallet connection, token creation, token listings, swapping, liquidity management, and transaction status. The frontend can be built with React or , using Solidity for smart contract...

I’m planning to roll out a full-featured crypto wallet that works seamlessly on both iOS and Android. Beyond standard send/receive functionality, the app must include an integrated exchange so users can swap supported coins without leaving the interface, as well as a smooth in-app purchase flow for buying crypto with fiat. A key differentiator is the payment card element: users should be able to order a virtual or physical card linked to their wallet balance and spend crypto at regular merchant terminals. I already have preliminary agreements with a card-issuing partner; what I need now is the mobile application, the secure back-end, and the card-wallet linkage. Core requirements you’ll build: • Native or cross-platform apps for iOS and Android • Secure key manage...

I’m ready to build a production-grade, non-custodial crypto wallet that runs smoothly on iOS and Android. Private keys must never leave the user’s device, and the experience needs to feel as simple as any mainstream payments app. Core feature set • Send and receive cryptocurrencies with QR scanning and shareable wallet addresses • Real-time and historical transaction list with clear status indicators • Multi-currency support from day one (Bitcoin, Ethereum/ERC-20 preferred) and an architecture that lets us add new assets quickly Security and recovery • Biometric authentication (Face ID / Touch ID / Android Biometrics) • Optional two-factor authentication before approving a transaction • Passphrase backup that users can export, verif...