Solidity projects — HireLancer archive

ID / Date Listing

HL-40219134

Architect & Build Smart Contracts

I’m at the very first, idea-only stage of a new Web3 product and need a full-stack developer who can take that concept and turn it into production-ready smart c...

HL-40218053

Web3 dApp Completion & Integration

I have an almost–finished Web3 application running on BNB Smart Chain and need an experienced Solidity-plus-Next.js engineer to wrap up the last mile. The heavy...

HL-40213989

Web3 Blockchain Development

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. Be...

HL-40209669

BEP-20 Token with Tax Logic -- 2

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...

HL-40209134

Stable coin

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...

HL-40208547

Ethereum MEV Arbitrage Bot Development

Production-Ready Ethereum MEV Arbitrage Bot Bidding ends in 2 days, 21 hours I need a full-stack, production-grade MEV trading bot that continually scans Ethere...

HL-40207127

On-Chain slotbased Development

ON-CHAIN MATRIX SYSTEM — UPDATED REQUIREMENTS 1) GENERAL - The system is 100% on-chain, immutable, and permissionless. - Users register once and activate slots...

HL-40206867

BEP-20 Token with Tax Logic

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 simpl...

HL-40206034

Europe Smart Contract Expert Needed

I’m lining up a new blockchain project and want to work directly with a smart-contract developer who is already based in Europe so our time zones stay in sync....

HL-40204520

TRC20 Smart Contract Development

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 technol...

HL-40201269

BSC DVP Smart Contract Development

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....

HL-40200332

Blockchain Smart Contract Development

I need a seasoned smart-contract developer who can take my concept from architecture through secure deployment. At this stage I’m still deciding whether Ethereu...

HL-40199484

AI Blockchain and IoT Suite

I am rolling out a trio of inter-linked prototypes that tackle pressing urban and environmental challenges while showcasing cutting-edge AI, blockchain, and IoT...

HL-40196515

Monad Pool Price Dashboard

i want to send MONAD uniswap v4 pool swaps and getting pool prices.

HL-40196519

Monad Uniswap Swap & Price Python Codes

I need a compact script or small utility that talks to Uniswap on the Monad network and does two things in the same code-base: • Fetch the latest pool price for...

HL-40196149

Cryptocurrency Platform Development

I am looking for an experienced blockchain developer to create a new cryptocurrency platform with its own coin system and its own blockchain system Key requirem...

HL-40187833

Freelance Smart Contract/Blockchain Engineer Needed

Position: Freelance Smart Contract / Blockchain Engineer Type: Contract / Freelance Location: 100% Remote Workload: Part-time or task-based Compensation: $30–$5...

HL-40187098

MERN Web3 Game Site

I’m building a browser-based game and need it brought to life with a full MERN stack and solid Web3 functionality. The front end will run on React, the back end...

HL-40186678

Binance Smart Chain DApp Development

I’m gearing up to launch a full-fledged DApp on Binance Smart Chain and I’d like an experienced blockchain developer to bring it to life. The core of the job is...

HL-40185692

NFT & LLM Data Integration with Blockchain Experience

I need a unified workflow that collects my text documents, images, and videos, packages each bundle as on-chain metadata, and mints it as an NFT on Ethereum. Th...

HL-40184749

NFT & LLM Data Integration with Blockchain Experience

I need a unified workflow that collects my text documents, images, and videos, packages each bundle as on-chain metadata, and mints it as an NFT on Ethereum. Th...

HL-40180526

Ethereum Payment Gateway with Fraud Detection

I’m putting together a consumer-to-business payment gateway that runs entirely on Ethereum. The goal is for any online shop or SaaS platform to accept on-chain...

HL-40180574

Ethereum Public Chain Payment Gateway

I am building a service that must accept one-time customer payments directly on a public blockchain. My preferred rail is Ethereum, so the core of the job is a...

HL-40180376

Crypto Marketplace Upgrade Lead

We need to upgrade an old cryptocurrency marketplace that now needs a coordinated, end-to-end upgrade. Both the client-facing frontend and the transaction-heavy...

HL-40176527

Build "Gold ID" (Web3 Domain Name Service) on EGoldChain

Hiring for Gold ID (Web3 Domain Name Service) on EVM Chain (Urgent project / Budget negotiable) Project Details: I am building my own blockchain called “EGoldCh...

HL-40175698

SlitherChain - Révolution du Gaming Blockchain

Vision du Projet SlitherChain est une révolution dans le gaming compétitif en ligne. Nous fusionnons l'addictivité des jeux .io classiques avec la transparence...

HL-40171158

Разработка автоматизированного De-Fi Flash Loan Арбитраж Бота

1. Цель Проекта Разработка автоматизированного сервиса для обнаружения и исполнения арбитражных возможностей в DeFi с использованием флеш-кредитов (flash loans)...

HL-40161918

Develop CryptoEmpire Blockchain DEX - 19/01/2026 14:48 EST

CryptoEmpire is ready to graduate from white-paper to a live, self-sustaining blockchain that powers its own decentralized exchange. The immediate scope is pure...

HL-40161578

Develop CryptoEmpire Blockchain DEX

CryptoEmpire is ready to graduate from white-paper to a live, self-sustaining blockchain that powers its own decentralized exchange. The immediate scope is pure...

HL-40161617

Develop CryptoEmpire Blockchain DEX - 19/01/2026 12:34 EST

CryptoEmpire is ready to graduate from white-paper to a live, self-sustaining blockchain that powers its own decentralized exchange. The immediate scope is pure...

HL-40155849

Mobile Web3 Logic Puzzle

I’m building a mobile-first, Web3-enabled logic-puzzle game and now need a backend that can handle both traditional game mechanics and on-chain interactions. Pl...

HL-40154376

Ethereum PoW Cryptocurrency Creation

I need a brand-new cryptocurrency launched on the Ethereum code-base. Although Ethereum’s mainnet has moved to Proof of Stake, my plan is to fork the last PoW v...

HL-40152986

Full-Stack Web3 Developer for Token Rewards System

We are building a token rewards platform on the BSC chain that integrates with an existing marketplace. The platform enables users to stake tokens acquired thro...

HL-40149520

Binance Chain Game Integration

My team is preparing to roll out a large-scale game platform, and the very first milestone is weaving Binance Smart Chain directly into our existing back-end an...

HL-40146892

Polymarket on bnb chain

https://www.youtube.com/watch?v=BHLIJnS5Ikw https://thirdweb.com/devalex.eth/PrimapePrediction That's the whole code and video to make a polymarket like project...

HL-40144856

Web developer Need

Project Title Build a Homework Project Based on a Reference Application Project Description Hi! I’m a university student working on a homework project. I alread...

HL-40140236

TRON USDT Simulation Developer Needed

Project Title TRON (TRC20) USDT Simulation / Testnet System with Wallet Integration & Blockchain Confirmations Project Description We are looking for an experie...

HL-40140247

TRON200 XRO

Custom TRC20 Stable Token (Own Contract). --- Hiring TRON Blockchain Developer – Custom TRC20 Stable Token Blockchain: TRON (Mainnet preferred) --- Project Over...

HL-40140279

Test TRC-20 Token & DEX Integration

Project Title: Blockchain Developer for Private TRC-20 Token Simulation & DEX Integration Project Description: I am looking for a senior Blockchain Developer t...

HL-40136703

NFT Marketplace Full-Stack Build

I’m launching a brand-new NFT marketplace and need developer who can handle the entire stack—frontend, backend and the Web3 layer—so we can validate the full us...