Smart Contracts projects — HireLancer archive

ID / Date Listing

Web3 DApp Frontend Bug Fixes

Our DApp is live but two areas still misbehave: actions inside the user dashboard do not respond, and token balance / transfer calls occasionally fail or return...

HL-40296279

BTTold to New BTT Swap

I hold a balance of BTT (“BTTold”) that is still sitting on its original base chain. My goal is to move those tokens onto the Tron network and complete the offi...

HL-40295950

Web3 Frontend Bug Fixes

Our dApp’s React-based frontend is live, but the UI stalls whenever it talks to our smart contracts—data can take seconds to appear, and some calls never resolv...

HL-40296033

Senior Full Stack Developer Needed

Senior Full Stack Developer (Fintech / Web3 Product) We are looking for a senior freelance developer to join an active digital product currently under developme...

HL-40292754

Set Up Besu Private Blockchain

I need a complete installation and configuration of a private Hyperledger Besu network whose main job is reliable data storage and sharing. I have servers ready...

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...

HL-40288237

Solana Smart Contract Development

I am building out the core of a new product on the Solana blockchain and need a seasoned engineer to write, test, and deploy custom smart contracts. Your job is...

HL-40287126

Web3 Strategy Game Development

I'm seeking an experienced developer to create a Web3 strategy game accessible via web browser and integrated with the Solana blockchain. Key Requirements: - De...

HL-40285389

Android Blockchain Developer for NEXA BULL Wallet

Project Title Senior Android + Blockchain Developer Needed to Complete Multi-Chain Crypto Wallet (NEXA BULL) with MLM Integration Project Overview We are develo...

HL-40284046

Automated BEP-20 Airdrop and token sale Smart Contract with small fee going to admin

I have a bep20 token and require 2 options that both need to be included in the smart contract so users have 2 options to claim tokens: 1) Simple smart contract...

HL-40283108

Xrealy Ledger Development

I'm building Xrealy Ledger (XRY), a decentralized settlement infrastructure for financial institutions. I need expert assistance in three key areas: WASM-Based...

HL-40281323

Collaborative Decentralized NLP Platform

I’m building a distributed network where natural-language AI agents can discover each other, exchange insights, and tap into spare GPU capacity offered by compu...

HL-40276916

Blockchain Developer for Gambling Protocol

Freelancer Needed – Advanced On-Chain Gambling Protocol with Liquidity Pool, Fully Operational Arbitrage Engine, Railway Backend Compatibility, and Optional Com...

HL-40276937

Blockchain Developer for Gambling Protocol -- 2

Freelancer Needed – Advanced On-Chain Gambling Protocol with Liquidity Pool, Fully Operational Arbitrage Engine, Railway Backend Compatibility, and Optional Com...

HL-40276518

Web3 Real Estate Development

We are building a Web3-based real estate rental platform that enables secure cryptocurrency payments for rent and deposits across Ethereum, Polygon and Solana....

HL-40274527

Elite AI Bot for DeFi Arbitrage

Project: "The Oracle Agent" – Elite AI Arbitrage Bot (Polygon Mainnet) 1. Executive Summary I am seeking a world-class Full-Stack Web3 & AI Engineer to build "T...

HL-40274533

Elite AI Bot for DeFi Arbitrage -- 2

Project: "The Oracle Agent" – Elite AI Arbitrage Bot (Polygon Mainnet) 1. Executive Summary I am seeking a world-class Full-Stack Web3 & AI Engineer to build "T...

HL-40274478

Looking to Acquire or License an Existing Crypto Analytics / Smart Wallet Tracking SaaS

We are looking to acquire or license an already developed crypto analytics or smart wallet tracking SaaS platform related to blockchain data analysis / EXPERT O...

HL-40274154

Modern Crypto Casino Development

I need a full-featured crypto casino built from the ground up with a modern and sleek interface. The core of the platform must include slot machines, poker and...

HL-40272917

TRON P2P Energy Marketplace

I need a full-stack developer who can deliver a turnkey peer-to-peer energy rental marketplace on the TRON network. The scope starts with spinning up and securi...

HL-40270722

Comprehensive Smart Contract Audit Required

We are a small community that is highly dependent on Elon Musk, particularly in the event that he chooses to livestream on X. Unfortunately, our token has been...

HL-40270047

Multi-Chain NFT Marketplace Development

I need a seasoned blockchain developer to create a full-featured NFT marketplace that runs on Ethereum, Binance Smart Chain, and Polygon. The core flow is strai...

HL-40268825

TRON TRC20 - Eth Token Deployment

I am looking for a blockchain developer to create and deploy a custom token on TRON (TRC20), BSC (BEP20), or Ethereum (ERC20) networks. Token Display: The token...

HL-40266470

Solana Developer for Meteora Project

i need experienced solana developer for a meteora project infrastructure. its a tool that involves launching on meteora. some issues are occuring on the tech ri...

HL-40266431

Polymarket Market-Making Trading Bot

I need a developer who can design, code, and deploy an automated market-making bot that operates exclusively on Polymarket. The core requirement is simple: once...

HL-40266167

Development-Grade Flash USDT on Tron (TRC-20)

I'm looking to acquire Flash USDT TRC-20 (Tron blockchain) with a minimum validity of 30 days. This USDT will primarily be used for testing and development purp...

HL-40266218

Tokenomics Model Creation

I need a tokenomics specialist who can design a complete economic model for the upcoming token within 7–10 days. The token’s core purpose is fundraising, and th...

HL-40264849

ZK Developer: Privacy-Preserving Verification Module (Circom/Solidity)

CSPDAO is developing a zero-knowledge proof system to allow users to verify membership status without revealing personal identity data. We require an experience...

HL-40264773

Real Estate Token Exchange

I’m building a full-cycle crypto exchange that lets investors buy blockchain-based tokens backed by income-producing real estate. The core of the platform is a...

HL-40264774

Custom Token & Self-Hosted Wallet

I want to launch my own central blockchain token and pair it with a fully self-hosted wallet that I can control end-to-end. The exact standard is still flexible...

HL-40264697

Solidity Developer for DeFi Staking Platform

We are building a DeFi staking platform on Ethereum (EVM-compatible) and need an experienced Solidity developer to implement and test core smart contracts. The...

HL-40261342

Need to buy an Web3 Social Marketplace

I’m ready to acquire a turnkey web3 social marketplace built for Ethereum. The single-most important piece for me is a robust social layer: users need to create...

HL-40260863

Toucan Protocol Exchange Integration Analysis

I need a technically minded analyst-developer who already understands the Toucan Protocol (Carbon) and how exchange listings work. Our token trades on l-Bank, a...

HL-40258639

Real Estate Token Exchange

I’m building a full-cycle crypto exchange that lets investors buy blockchain-based tokens backed by income-producing real estate. The core of the platform is a...

HL-40257824

Advanced Multi-Layer Bundle Arbitrage Engineer

Senior MEV Engineer – Multi-Layer Bundle Arbitrage (Flashbots) – Production Searcher --- ## Short Summary (Under 400 Characters) Build a production-grade MEV Mu...

HL-40255291

End-to-End Agritech SaaS

I am building a cloud-hosted SaaS platform that puts data science, IoT, and blockchain directly in the hands of farmers through Android and iOS apps. The servic...

HL-40253697

Solana PumpFun HFT Layer

I need an execution layer for solan pump fun token trading on tokens on the bonding curve. The design must be hyper fast and be mindful of fees. Your proposal w...

HL-40252601

Blockchain Medical Record System (MyMedVault)

I want to launch MyMedVault, a Web3 application that lets patients upload their medical-history records, encrypt them, and place the encrypted hash on the Polyg...

HL-40227091

Build Layer-2 Cross-Chain Smart Contracts

I’m expanding our protocol to run seamlessly across multiple chains while taking full advantage of Layer-2 speed and cost efficiency. What I need now is pure de...