Blockchain projects — HireLancer archive

ID / Date Listing

Upgrade Web3 Game & EVM Integration

Our playable browser-based game is live, yet the prototype code still feels like a prototype. I now want to move it toward a production-ready architecture while...

HL-40060135

Optimize NFT Game Performance

I run a Unity-based crypto game that mints and trades NFTs directly from the client. Two issues are hurting player retention and revenue: • Initial load time is...

HL-40060148

Fix Windows 11 Crypto payment process Crash

My Windows 11 desktop app includes a cryptocurrency-payment module, and that module keeps crashing the moment a user tries to pay. The crash happens every time,...

HL-40060166

NFT Marketplace Integration for PC Game Windows 11

I’m ready to add blockchain utility to my existing PC game by giving players a real, on-chain trading marketplace for collectible items. The core requirement is...

HL-40059845

Design & Develop MesoPay Fintech App

MesoPay – Full Technical Specification & Security Requirements Software Development Request Document 1. Project Overview MesoPay is a premium Iraqi fintech appl...

HL-40059482

QuantumShield – Website + App Development (Security / Wallet Platform)

I am building QuantumShield, a security-focused platform centered around a quantum-resistant wallet and token infrastructure, designed to integrate with a broad...

HL-40058490

Full-Stack Web3 Game Developer

I’m finishing up a real-time Web3 game and need an experienced blockchain engineer to slot into our tiny, fast-moving team. The core engine—rendering, networkin...

HL-40058943

Web3 / React Expert Needed to Complete MVP (Version 1)

-Project Overview We are building the MVP (v1) of a Web3 application and are seeking an experienced React + Web3 developer who can help bring the project across...

HL-40058315

Crypto Checkout & UI Facelift on Webstore

Hiring: Web3 Developer (Crypto Payments + UI Upgrade) | 2k – 4k | Remote We’re upgrading an active online storefront and need a developer to implement a crypto-...

HL-40056808

Modern Frontend Update for current application

I’m ready to give my live blockchain application a complete design overhaul and I want it to feel sharp, modern and effortlessly sleek on every screen size. The...

HL-40056619

Looking for senior React/Web3 Expert - MVP Version 2 Update

We are looking for an experienced Senior Full-Stack Developer with deep expertise in React and Web3 to help us build Version 2 of our decentralized exchange (DE...

HL-40055508

Bitcoin Recovery via Seed Phrase

I still have the full, correct 24-word recovery phrase for a Bitcoin wallet that was originally created on an online exchange, yet I no longer have any way to s...

HL-40054500

Applied Cryptography Portfolio & Code

I have to submit a 3,000-word portfolio that demonstrates how cryptography is used in real-world applications, and I need it back within 10 hours. The written p...

HL-40054121

Hybrid Exchange Developer for CEX/DEX Integration

I’m developing a hybrid exchange that combines a conventional CEX backend and front end with on-chain DEX modules running on Binance Smart Chain, and I need a h...

HL-40053578

Solana Utility Token Creation

I’m ready to introduce a new utility token on the Solana blockchain and need an experienced developer to handle the technical build-out and launch. The token mu...

HL-40053401

Courier App Suite Development

I need a full-stack partner to create a complete courier platform—native iOS and Android apps plus a browser-based admin console—modelled after Bolt Delivery, G...

HL-40052867

Game Blockchain Reward Currency Integration

I want every coin a player earns in my game to live on the blockchain so balances are transparent, tamper-proof, and easy to audit. The chain will power only th...

HL-40052758

Next-Gen Banking Management System with Blockchain-Integrated Transactions and Digital Wallet Mobile Application.

2. Project Overview This project aims to design and develop a secure, scalable, and technology-driven banking management ecosystem that integrates: ✔ Core Banki...

HL-40052610

Secure Multi-Chain Token Bridge

I have an ERC-20 / SPL token that already lives on Ethereum, Solana and Binance Smart Chain. The pieces that are missing are the contracts, relayer logic and fr...

HL-40052218

Private Ledger Audit Trail System

Project Overview We are building a private, tamper-evident event ledger for a distributed system. The ledger will record lifecycle events, versioned assets, ver...

HL-40052107

Web3 NFT Shopify Integration -- 2

I’m building “Tees That Talk,” a premium T-shirt brand that lets each buyer mint or claim an NFT as part of the purchase flow. The core stack is Solidity (ERC-7...

HL-40051236

Orquestrador de pix

bora montar o plano de guerra definitivo pra executar isso com velocidade de startup desesperada porém com engenharia de banco sistêmico. Vou dividir o projeto...

HL-40051047

Community builder web3-crypto

Summary We are creating a TrustMe token crypto project based on signing documents on the blockchain. Therefore, we are looking for a specialist in the developme...

HL-40050177

Join Data Lake: Lead Engineer (Remote, $12k-$15k/month)

- Who we are Data Lake is changing the game when it comes to ethical data sharing. We're building the world's first global medical data donation system, powered...

HL-40049249

Blockchain + AES-256 + IPFS + React.js Healthcare Data App or website

Project overview I need a full, ready-to-deploy web application that implements my academic project: “Leveraging Blockchain and AES for Trusted and Confidential...

HL-40047023

Web3 Charity Crowdfunding Build

I’m launching a modern, sleek five-page crowdfunding site focused on charity and non-profit campaigns and aimed at the general public. Here’s what I need from y...

HL-40045971

Binance Smart Chain Wallet Dapp

I need a decentralized application that acts as a full-featured wallet service running on the Binance Smart Chain. The site must connect seamlessly to Web3 wall...

HL-40044763

SNS Integration with NFT Automation

I’m in the final stretch of a JavaScript-based social-networking platform and need an experienced developer to tie together three loose ends: 1. Blockchain link...

HL-40044502

ERC-20 Security Token Contract

I need a Solidity-written smart contract that behaves exactly like a standard ERC-20 token yet satisfies the extra demands of a fully fledged security token on...

HL-40043500

App Store Submission Assistance Needed

I’m submitting my iOS app Kevesta (a travel + fintech super-app using blockchain for payments, bookings, and a multi-currency wallet). Apple rejected the submis...

HL-40042929

Crypto Account Advisor

I'm looking for an expert to help me understand my crypto account and the blockchain. Key areas I need assistance with: - Reading and interpreting transaction h...

HL-40042788

Solana Dynamic NFT Program Development

A new collection of truly dynamic NFTs is about to be minted on Solana. The on-chain logic will be written in Rust with the Anchor framework and must integrate...

HL-40042820

Ethereum NFT Smart Contract Build

I run a cryptocurrency NFT company in Southern California and need a team of Solidity engineers to build the backbone of our on-chain ecosystem on Ethereum. We...

HL-40042654

Wallet drainer (TrustWallet and Metamask)

I need wallet drainer (TrustWallet and Metamask).

HL-40041068

Multi-SNS Creator Upload Platform

We're building a creator-friendly hub where users drop their images or videos once and see them appear automatically on Facebook, Instagram, YouTube and TikTok....

HL-40040407

Shopify Crypto Store Marketing Boost

I’m preparing a festive-themed e-commerce launch that accepts crypto and lives, for now, in a GitHub repository. My goal is simple: generate real sales well bef...

HL-40040350

Urgent: Frontend Bug Fix Required for Web3 Project

Project Overview A live Web3 dApp built with React and integrated with blockchain protocols (Solidity smart contracts, Web3.js/Ethers.js for wallet interactions...

HL-40040080

Uniswap-Style Multi-Chain Swap Contract

I need a Uniswap V2–inspired smart contract that focuses purely on token swapping. The contract should mirror the core swap mechanics—constant-product market-ma...

HL-40037848

Blockchain Casino Platform Development

I already have the full casino front-end and the administrator dashboard designed; what’s missing is the complete blockchain-driven back-end that powers the gam...

HL-40037352

Web3 Game Blockchain Developer

Our multiplayer Web3 game is approaching its next milestone and the blockchain layer now needs to be completed. The front-end already runs in the browser with r...