Solidity projects — HireLancer archive

ID / Date Listing

Enhance DAO Social Web3 Platform

We already have a Next.js + Node.js DAO platform with basic social functionality. We focus on deepening its Web3 layer while tightening the overall full-stack f...

HL-40391973

MEV/Sandwich Bot & Prediction Bot Codes

Need complete, ready-to-run source code for two solutions: • an MEV/Sandwich bot built for back-running transactions, and also provide separate prediction bot a...

HL-40391632

Ethereum DeFi DEX & Staking

I’m building a DeFi application on Ethereum that combines a Uniswap-style decentralized exchange with a yield-farming / staking module. The work covers the full...

HL-40387528

BTCUSDT AI Futures Copy Trading Bot

I need an AI-driven crypto-futures bot that trades the BTC/USDT pair only. Its core logic will be an automated swing-trading strategy with buy sell high on smal...

HL-40385290

HR Recruiter Needed - Web3 Developer Sourcing (Performance-Based)

We are currently building a Web3-based ecommerce platform focused on crypto payment integration and scalable infrastructure. We are looking for a freelance HR r...

HL-40381780

Ethereum Meme Coin Development

I'm looking for an experienced blockchain developer to create a meme coin on the Ethereum platform. The primary goal of this coin is community building. Key fea...

HL-40380005

Stablecoin Deployment on BSC

I'm seeking a developer experienced in Solidity and blockchain technology to assist in minting and deploying a temporary fiat-backed stablecoin on Binance Smart...

HL-40370606

China-Based Tech Recruiter Wanted

I’m expanding our engineering team at LaRevela, the Web3 identity and visitor-intelligence platform for eCommerce, and I need a skilled technical recruiter who...

HL-40369785

Criação Token TRC-20 TRON

Quero lançar um token próprio, padrão TRC-20, na rede TRON. O ativo deverá se chamar “Moeda” e usar o símbolo “usdt”. Preciso do contrato inteligente completo,...

HL-40369292

Blockchain Developer for DeFi Staking Smart Contract

I’m looking for an experienced blockchain developer to build a smart contract for a decentralized finance (DeFi) application. The platform will focus on staking...

HL-40364541

Simple Ethereum Payment Contract -- 2

I need a clean, well-commented Solidity contract that accepts and forwards ETH payments on Ethereum mainnet (no ERC-20 support, no extra logic). The goal is to...

HL-40364235

DeFi Smart Contract PenTest

My DeFi protocol is code-complete and ready for public launch, but it cannot go live until an exhaustive penetration test confirms it is watertight. The scope i...

HL-40363944

Dual-Blockchain Token Flash Software

I need a flash-style application that lets me create new tokens on both the ERC20 (Ethereum) and TRC20 (Tron) networks in one streamlined interface. The core re...

HL-40362742

EVM Token Development on Polygon -- 2

I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently i...

HL-40362675

EVM Token Development on Polygon

I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently i...

HL-40361699

DeFi DApp with Staking

I'm looking for an experienced blockchain developer to create a smart contract for a DeFi application. The DApp will focus on staking and yield farming. Key Req...

HL-40361515

Simple Ethereum Payment Contract

I need a clean, well-commented Solidity contract that accepts and forwards ETH payments on Ethereum mainnet (no ERC-20 support, no extra logic). The goal is to...

HL-40358234

Utvikle desentralisert kryptotokenplattform

Jeg ønsker å lansere en enkel, men robust utility-token på en populær EVM-kompatibel blokkkjede (f.eks. Ethereum eller BNB Chain). Samtidig vil jeg ha en minim...

HL-40354958

Theta Web3 Trading Platform Build

I am ready to take a theta-based trading idea from whiteboard to production and need a Web3 full-stack partner to carry the build end-to-end. The core features...

HL-40343669

BSC Token Creation Specialist

I'm seeking an experienced blockchain developer to create a BEP-20 token on the Binance Smart Chain. Key Requirements: - Develop and deploy a BEP-20 token - Ens...

HL-40339655

Ethereum Infrastructure & Smart Contracts

I’m kicking off a large-scale Web3 venture here in Singapore and need an experienced full-stack React.js / Node.js developer to help architect and code our Ethe...

HL-40337831

Senior Blockchain / Smart Contract Developer (Web3 Platform)

Description: We are building a Web3-based platform with smart contract-driven transaction flows and are looking for an experienced blockchain developer to help...

HL-40337526

Skilled Blockchain Developer Needed -- 2

We are looking for a skilled and dependable Blockchain Developer to support the development of real-world blockchain applications. This role requires hands-on e...

HL-40337371

Flash Loan developer

I need a Solidity smart contract deployed on Ethereum that requests a flash loan from Aave, sweeps the borrowed funds through Uniswap and SushiSwap in the same...

HL-40337176

Full-Stack Ethereum Trading Platform Development

This project takes a crypto-trading idea from concept to a live, production-ready web app that runs entirely on Ethereum. I need one person who can own every la...

HL-40335166

Flash Loan Arbitrage Bot Development

I'm in need of a skilled developer who can create a flash loan arbitrage bot software that can interact with several cryptocurrency exchanges and decentralized...

HL-40325767

Web3 Real Estate Blockchain Developer & Advisor

I’m building a next-generation real-estate platform that anchors physical property rights on-chain. Before we push further, I need a senior blockchain professio...

HL-40324114

dApp & Smart Contracts on BSC/Tron

I’m ready to commission a Web3 solution that combines a fully-functional decentralised application with its underlying smart contracts on both Binance Smart Cha...

HL-40322292

Coinbase API Smart Contract App

I am building an application that runs on Base and plugs directly into the Coinbase ecosystem. The heart of the project is a group of Solidity contracts—one of...

HL-40319057

Blockchain & smart contract developers for Web3 project

I am rolling out a new Web3-based payment platform for the Argentine market and have already published a working demo that stitches together Solidity smart cont...

HL-40318676

Web3 Devs & PMs Needed -- 2

I am rolling out a new Web3-based payment platform for the Argentine market and have already published a working demo that stitches together Solidity smart cont...

HL-40316789

Blockchain Engineer for Cryptocurrency Development

Title: Blockchain R&D Engineer – Cryptocurrency / Token Development Project Description: We are looking for a skilled Blockchain R&D Engineer to work with our s...

HL-40315141

BEP20 Token Smart Contract with Daily Emissions

Looking for an experienced Solidity / BSC developer to build a BEP20 token with a front-loaded daily emission schedule from a treasury wallet. Requirements: * B...

HL-40314042

BEP20 Token Smart Contract with Custom Daily Emissions

Looking for an experienced Solidity / BSC developer to build a BEP20 token with a front-loaded daily emission schedule from a treasury wallet. Requirements: * B...

HL-40312492

Web3 Social Platform MVP

I want to turn my early-stage concept for a decentralised social network into a working MVP. The core idea is familiar—profiles, public and private posts, and r...

HL-40303839

Blockchain Real Estate Marketplace Development

*Complete SOW attached* I am building a full-featured marketplace where owners of both residential and commercial properties can publish listings, buyers can se...

HL-40298708

Lead Backend Engineer & Product Designer

Role Title Lead Backend Engineer and Product Designer Work site Remote/ New York, New York Employment Type Part Time Job Level Professional Posted Date March 12...

HL-40298291

Solidity Engineer: Implement Ownerless HTLC + Mock Stablecoins (Chain ID 210)

⚡️ CALLING ALL CRYPTO-ANARCHISTS & EVM ARCHITECTS ⚡️ Project: The Sovereign Swap Genesis (Phase 1) Forget the $175—we’re here to build the bedrock of permissi...

HL-40291523

SOVEREIGN ZK-ATOMIC SWAP IMMUTABLE GROTH16 PRIVACY-SWAP ENGINE FOR TRUSTLESS OTC EXCHANGE

Research Focus: Improving Proof of Work (PoW) efficiency and cross-chain confidentiality via zk-SNARKs. The Groundfloor Opportunity: This project represents a u...

HL-40291323

Stablecoin Creation Specialist Needed

I’m preparing to launch a fiat-pegged stablecoin and need the complete coin/token creation handled from concept to main-net deployment. The focus is strictly on...