The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Cryptocurrency is a form of digital money that is known for providing a safe, secure, and decentralized means of transactions. A cryptocurrency expert is well-versed in blockchain technology and software development, allowing them to provide support for businesses interested in creating a sound digital currency. With the advancement of blockchain technology, these experts can provide helpful guidance to those who are looking to take advantage of the increased efficiency and security that cryptocurrencies offer.
Here's some projects that our expert Cryptocurrency Experts made real:
This is merely a glimpse into the exciting world of cryptocurrency. From mining pools to virtual visadebitcards and automated trading strategies, there are endless possibilities with blockchain technology. Our Cryptocurrency Expert have had real success helping businesses develop their projects in an efficient manner, taking their ideas from the drawing board to reality in no time at all.
If you are considering entering the cryptocurrency market or already have an existing project, join Freelancer.com, post your project and hire an experienced Cryptocurrency Expert to achieve the results you desire. With the tools you’re given by Freelancer, success is just a few clicks away.
From 36,437 reviews, clients rate our Cryptocurrency Experts 4.9 out of 5 stars.Cryptocurrency is a form of digital money that is known for providing a safe, secure, and decentralized means of transactions. A cryptocurrency expert is well-versed in blockchain technology and software development, allowing them to provide support for businesses interested in creating a sound digital currency. With the advancement of blockchain technology, these experts can provide helpful guidance to those who are looking to take advantage of the increased efficiency and security that cryptocurrencies offer.
Here's some projects that our expert Cryptocurrency Experts made real:
This is merely a glimpse into the exciting world of cryptocurrency. From mining pools to virtual visadebitcards and automated trading strategies, there are endless possibilities with blockchain technology. Our Cryptocurrency Expert have had real success helping businesses develop their projects in an efficient manner, taking their ideas from the drawing board to reality in no time at all.
If you are considering entering the cryptocurrency market or already have an existing project, join Freelancer.com, post your project and hire an experienced Cryptocurrency Expert to achieve the results you desire. With the tools you’re given by Freelancer, success is just a few clicks away.
From 36,437 reviews, clients rate our Cryptocurrency Experts 4.9 out of 5 stars.I’m ready to launch my own BEP-20 token on Binance Smart Chain and need a developer who can handle the full smart-contract build and deployment. The token must follow the standard BEP-20 specification and include a Minting function so I can expand the supply later when needed. Here’s what I expect from you: • Write a clean, well-commented Solidity contract (OpenZeppelin libraries preferred). • Configure minting so only the owner (my wallet) can call the function. • Deploy the contract to testnet first, then mainnet once I have verified everything. • Verify the source code on BscScan and hand over ownership. • Supply all source files plus a short read-me explaining contract variables, how to mint, and any safety considerations. I already have...
Hi I will share the details with the shortlisted candidates. Thanks
Need a Solidity dev for a simple MVP: team-based NFT positions + monthly oracle update + reward claim. Contracts only (no frontend). Stack: Solidity + OpenZeppelin + Foundry. Must include tests, deployment script, and clean documentation.
Hi I will share the details with the shortlisted candidates. Thanks
I need a brand-new ERC-20 smart contract built from scratch, then deployed to the Ethereum network. The token must include minting, burning, and pausable functionality, implemented with clean, upgrade-friendly Solidity code that follows current best practices (OpenZeppelin libraries, Hardhat or Foundry for testing). Please create, test, and deploy the contract, then hand over everything required for future maintenance. Deliverables • Verified Solidity source code with mint, burn, and pause modules • Full test suite covering core logic and edge cases • Deployment scripts and step-by-step notes (addresses, gas used, etherscan verification) • Final token address on Ethereum mainnet or a clearly documented test deployment if mainnet is postponed Acceptance criteria...
I need a web-based crypto cricket fantasy game. The game should include: - Player selection and management - Live scoring updates - Crypto wallet integration Ideal skills and experience: - Game development experience, especially in fantasy sports - Strong knowledge of cryptocurrency and blockchain technology - Proficient in web development - Experience with real-time data integration for live updates Please provide detailed project proposals.
Hi I will share the details with the shortlisted candidates. Thanks
I need an existing PowerPoint on stablecoins updated. The audience is a Financial Services Operational Risk team. This includes both design and content updates. The style should be professional and formal. Most of the content s already in the deck i have. I am happy for content to be added if you feel it serves the purpose. Essentially just want to get across what stablecoins are, how they are used, a little about tokenized assets, regulatory and compliance in the digital finance space, and impacts to Risk Stripes, which are in the deck already. Content updates needed: - Latest market data on stablecoins - Regulatory changes and updates I have some data already, but you'll need to research and update where necessary to fill in the gaps. Also, please add speaker notes to each slid...
I need help recovering funds lost in a Bitcoin investment scam. The scam occurred via cryptocurrency. Hello, I am a 80 year old woman with Chronic Lung Disease and a cancer patient. I have been scammed by 2 different bitcoin investors. I need someone that can help me recover my funds. I have $9998.50 in USD.T and $2,500 in WSG in my Trust Wallet I need to try and transfer to my bank. I am alone and have nobody to help me. I am out of my medication and broke. PLEASE PLEASE CAN SOMEBODY HELP ME??? I AM NOT LOOKING FOR A HAND-OUT BUT A HELPING HAND-UP. Thank you and have a blessed day! Regards Ms Pat S Morrison
Design The Role We are looking for a Full Stack Engineer to take full ownership of building a non-custodial crypto payment gateway for USDC on Ethereum. You will not just be "writing code" from a ticket; you will be responsible for the entire delivery, including infrastructure, security, database design, and the admin dashboard. You are effectively acting as the Founding Engineer/CTO for this build. You must be comfortable making architectural decisions, setting up CI/CD, and securing a financial application. The System A compliant, on-chain payment rail that: Generates unique, one-time deposit addresses for users (HD Wallets). Detects incoming USDC transactions (Chain Indexing). Sweeps funds to a central treasury using EIP-3009 (Gasless Permits) to minimize ETH usage. P...
I need a bespoke WooCommerce payment gateway that lets shoppers pay with any standard credit or debit card and have the amount credited instantly to an on-site crypto wallet. Each customer will see a running balance and a full transaction history inside their account dashboard. Core build • Gateway visible at checkout, labelled clearly for card payments that top-up the wallet before completing the order. • Wallet type: crypto-based. You are free to recommend the best open-source or third-party API for key generation, secure storage, and blockchain interaction. • Features required inside the wallet: real-time balance tracking and searchable transaction history. • Admin settings to enable/disable the gateway, set minimum/maximum top-up amounts, and view aggregate...
I publish a fast-moving crypto newsletter that goes out every morning to an audience of passionate crypto enthusiasts. What I need from you is a concise, engaging daily update that distills the most important market trends and any fresh regulatory news from the previous 24 hours. Each piece should read like a quick, insightful briefing rather than a long-form article—think 400-600 words that blend hard data with clear take-aways. Feel free to pull figures from CoinMarketCap, TradingView, or similar dashboards, but the writing itself must be original, fact-checked, and free of jargon so readers can grasp the significance at a glance. Deliverables • One written update every calendar day • Coverage limited to: current market trends and notable regulatory developments &...
I am launching a fully-independent blockchain network and need an experienced developer who can take the project from white-paper to mainnet. The chain will run on a Proof of Work consensus, operate inside a closed environment (no external chain bridges), and issue a fiat-collateralized stablecoin that functions much like USDT but lives natively on this new ledger. Beyond the core protocol, I will also require built-in wallet support and a smart-contract layer so third-party developers can deploy dApps once the network is live. Security is paramount; every component—from key management to consensus—must be hardened against common attack vectors and accompanied by clear documentation. Key deliverables • PoW node software and full network setup (testnet + mainnet) &bul...
I run , a growing crypto project, and need an experienced community-builder to help me reach and activate new users across our social channels. X (formerly Twitter) is the top priority right now, followed by Telegram and, to a lesser extent, Discord. Here is what I’m aiming for: • X (formerly Twitter) – Spark real conversation around our updates, reply to holders and prospects, quote-tweet relevant industry news, and generally keep the timeline lively so followers feel heard and new users choose to follow. • Telegram – Attract fresh, quality members and keep existing ones talking. That means starting topic threads, answering questions, and nudging the chat when it goes quiet without flooding it with spam. • Discord – Optional but welcome: light ...
We are looking for an experienced and reliable lead generation specialist with a strong understanding of the cryptocurrency and blockchain space. Your primary responsibility will be sourcing high-quality, targeted crypto leads based on defined criteria. This may include (but is not limited to): • Identifying potential investors, traders, or crypto-interested users • Sourcing business leads within the blockchain / Web3 ecosystem • Collecting accurate contact details and relevant data • Ensuring leads are verified and up-to-date Requirements: • Proven experience in lead generation (preferably in crypto / blockchain niche) • Strong research skills and attention to detail • Ability to deliver accurate, high-quality data • Familiarity with crypt...
Our new platform, CritiQ, needs a suite of robust, reusable smart contracts. I already have the product vision, tokenomics draft, and high-level user flows; now I’m ready to turn that vision into audited code. Here’s what I expect from this engagement: • Architecture & specification – refine requirements with me and translate them into a concise technical spec. • Development – implement the contracts in Solidity using best-practice libraries such as OpenZeppelin, with comprehensive unit tests in Hardhat or Truffle. • Security & gas optimisation – apply industry-standard patterns, write clear modifiers, and run automated analysis (Slither, MythX, or similar) before handing the code over for an external audit. • Deployment &am...
I run a new cryptocurrency news feed that lives or dies on breaking market information. The goal is simple: deliver the very latest market updates and trends to my readers before the competition does. Your task is to scan trusted sources—official exchange announcements, CoinDesk, Bloomberg Crypto, verified Twitter accounts, on-chain analytics—and turn each relevant discovery into a concise, factual brief ready for immediate publication. Speed and accuracy come first. Every post must be written, proof-checked, and delivered within 30 minutes of the news breaking. I’ll share a style sheet, headline formula, and WordPress access; you can also hand in drafts through Google Docs if that’s faster for you. Deliverables • 3 market-centric news briefs per weekday over...
I’m building a long-term automated crypto trading system and need a seasoned crypto trader or quant to craft a clear, rule-based trend-following strategy focused on altcoins and deployable on Binance. long-term automated system clear rule-based trend-following strategy deployable on Binance What I expect: • A concise trading playbook covering entry, exit, position sizing, and risk-management rules that can be coded directly into a bot. • Definitions of market regimes (e.g., volatility filters, moving-average states) so the strategy adapts to changing conditions. • Back-testing results with key metrics—CAGR, max drawdown, Sharpe/Sortino—plus a brief explanation of assumptions, data sources, and slippage settings. • Parameter ranges or ...
We’re building Pryzen, a crypto-native sports + prediction markets app. What’s already live in the app: Sports markets are integrated (betting markets available). Polymarket markets are integrated (prediction markets available in-app). We also have league pages and team pages already implemented. The product is crypto-first (wallet users, onchain culture, rewards/NFT-friendly). Mission Help us grow Pryzen by targeting sports bettors + crypto users, especially the sports-crypto overlap (crypto degens who also bet on sports, and bettors who are crypto-curious). You will identify and engage the best communities and influencers on: Discord Telegram X (Twitter) Target Audiences (core) Sports betting communities Tipster/pronos groups (free & VIP) “Value betti...
I’m stuck at the very first hurdle on : every time I fill in my personal details the platform refuses to accept them and the registration simply loops. I already have my ID, proof of address, and a clean browser cache, yet the form still rejects my submission. If you actively use and have navigated its sometimes-picky onboarding flow, I’d like you to jump in and show me exactly what works. A quick screen-share or a clearly written step-by-step guide is fine—what matters is that, by the end, my account is opened and I’m ready to move on to KYC. Along the way, please flag any wording, formatting, or regional settings that is sensitive to so I don’t trip over them again. Deliverables • Live or written walkthrough that gets my personal-information st...
I am in the middle of financial-remedy proceedings and have been appointed to instruct a single joint expert. My ex-partner has disclosed a series of public keys and wallet addresses; however, I still need a clear, defensible picture of exactly how much cryptocurrency he currently holds and through how many wallets. The work centres on three core blockchains—Bitcoin, Ethereum and Ripple—but there may be additional tokens mixed in, so flexibility to widen the net is essential. I can supply every public key and wallet address already disclosed, and I can request anything else you identify as relevant. Your task is to trace those identifiers on-chain, calculate the present balances, and compile a concise report that can stand up to court scrutiny. Chain-analysis platforms such ...
Project Title: Professional Telegram Marketer Needed to Grow Solana Trending Channel to 10K+ Subscribers (Profit Share) Project Description I run a Telegram channel called MemePulse focused on Solana trending tokens and updates. We just lunched this channel. Right now we have around 40 subscribers, and our goal is to grow to 10,000+ real and engaged subscribers. I’m looking for a professional marketer who has proven experience growing Telegram channels, especially in crypto, Web3, or trading communities, and who can build a reliable growth system, not just quick spikes. This will be a performance-based role with profit sharing. You will help plan and execute the marketing strategy, drive consistent subscriber growth, and improve engagement quality. I’m not interested in bots...
I’m building a crypto-centric trading app and need a partner who can handle the technical core and the growth engine in one streamlined engagement. On the product side, the app must stream real-time market data from leading exchanges and display it flawlessly on both mobile and web. Low-latency price feeds, order-book depth, and responsive charts are essential so users always act on up-to-the-second information. On the marketing side, the goal is to drive a steady wave of qualified traffic to the app’s landing pages. My focus is on backlink building paired with content marketing; together they should strengthen domain authority and keep fresh, insightful crypto articles ranking for targeted topics. Keyword optimisation is optional—I’m prioritising high-quality l...
Project Goal Build a mobile-first digital payments app that allows users to send, store, convert, and spend crypto-backed USD with extreme simplicity, comparable to Zelle or Venmo — while crypto remains largely invisible to the user. Core Principle: “It should feel like a normal money app, powered by crypto in the background.” ⸻ Target Platforms • iOS • Android • Backend server • Admin dashboard (web) ⸻ Core MVP Functionality 1. User Authentication Required: • Phone number signup • SMS verification • Optional email backup • PIN or Face ID login • Secure session management System must: • Prevent duplicate accounts • Securely encrypt user credentials ⸻ 2. Automatic Wallet Creation Upon signup, the...
I’m looking for an experienced WordPress/PHP developer to build a custom payment gateway for Paid Memberships Pro integrated with NowPayments for a legal adult content website. Scope of work: Integrate NowPayments API to create crypto checkout for PMPro subscriptions Support new subscriptions and recurring payments (where supported) Handle NowPayments IPN/webhooks for: payment confirmed payment failed / expired refunds (if applicable) Sync payment events with PMPro membership status in real time Admin settings for API keys, test/live mode, and basic logs Follow PMPro gateway class structure (clean install/update) Acceptance criteria: I can enable the gateway in PMPro, enter API keys, and complete a full checkout in test mode. On payment confirmation, the user’s mem...
URGENT: Payment will be done later with a separate contract to make the payment after the job is done due to a funding problem and will be paid through this platform, the freelancers you will hire will be paid in crypto. We need a TA Generalist with main talent for acquisition, you need to identify who we need and also why by spotting the best talent for a Memecoin Project Web3 project. We wanna be successful I would consider 10m market cap a success if not higher, we need to launch to market in the shortest time possible. You should have knowledge DeFi ecosystem and HR tools like LinkedIn Recruiter.
I’m working with BitcoinPHP and I need a concise, well-commented snippet (or small class) that can derive and export a fully valid Bech32 (native SegWit) address from a given public key or HD-path.
We are building a Web3 ecosystem that combines NFT trading, DeFi features, decentralized gaming, and staking — powered by our own utility token. We are looking for a skilled Web3 developer to: Clone and run our existing project (Bitbucket repo) Review the codebase and landing page Provide clear technical feedback and improvement suggestions Suggest architecture, security, and performance enhancements This is a paid test task. If your feedback and skills meet our expectations, we will offer a long-term remote position (full-time or part-time). Serious and experienced developers only.
i'm looking for someone who ill help me setup my telegram group for a crypto project and also. discord
Pryzen Messaging & Agent System Pryzen features a unified messaging system designed to combine real-time social interaction with a wallet-native intelligent agent, purpose-built for Web3 sports betting and prediction markets. The system delivers a familiar chat experience inside the app while enabling secure, decentralized communication tied directly to users’ wallets. Core Principles Single chat experience for users Social + system messages in one interface Wallet-based identity, not phone numbers or emails Secure, end-to-end encrypted communication Scalable and future-proof for AI agents How It Works Users authenticate with Pryzen and automatically receive a Web3 wallet managed by Privy. This wallet becomes the user’s identity for messaging, notifications, and a...
I am looking for the mentor who actively trade in forex ,crypto and US market( index trading options).
I’m preparing to launch a brand-new BEP-20 asset on the BNB Smart Chain that mirrors the technical discipline of USDT while remaining an entirely separate token. Here’s what I need from you: • A clean, audited-style smart contract written in Solidity that compiles under the latest stable version, adheres strictly to the BEP-20 interface, and defaults to 18 decimals. • Flexible placeholders for the name, symbol and total supply; I will confirm those values right before deployment. • Owner-controlled mint and burn functions so I can expand or contract supply as required. • A blacklist / whitelist mechanism to freeze or allow specific addresses when necessary. (Transfer-pause logic is nice to have, so feel free to wire it in behind a boolean flag, but ...
English: I am planning to build a mobile non-custodial platform for digital token transactions on iOS and Android, including a backend. The software will operate purely with tokens; no fiat processing will occur within the system — fiat transactions will be handled exclusively by connected external partners. In the initial discussion, I expect: • An architecture proposal for Solana, including wallet handling and monitoring logic • Recommendations for the role model: Admin → Distributor → Shop → End Customer • A technical setup for a self-custody wallet with biometric security features • A workflow for QR-based token transfers between roles • A concept for automatic token classification (Clean / Unverified) and an audit trail • A rough ef...
Necesito desarrollar un bot de trading avanzado enfocado exclusivamente en criptomonedas y orientado a estrategias de day trading. Busco una solución completa: desde la arquitectura del sistema hasta la puesta en producción. El bot deberá conectarse a los principales exchanges mediante API (por ejemplo, Binance o Coinbase Pro), ejecutar órdenes de compra-venta de forma autónoma y aplicar la lógica de entrada y salida que definamos juntos. Me interesa que el código incluya: • Módulo de análisis técnico para detectar señales en tiempo real. • Ejecución automática de órdenes con gestión de riesgo (take-profit, stop-loss dinámico, límites de posición). ...
Kripto para iÅŸlemleri konusunda edindiÄŸim bilgileri ve pratiÄŸi, profesyonel bir özgeçmiÅŸ ve ön yazı ile öne çıkarmak istiyorum. 37 yaşındayım, Sakarya’da yaşıyorum ve OKX uygulaması üzerinden kripto çevrimi, USDT satışları, banka transferleri, maaÅŸ ödemeleri ile müÅŸteri temsilciliÄŸi alanlarında aktif olarak çalıştım. Bu deneyimlerimi uzun vadeli, güvenilir bir pozisyon bulmak için en etkili biçimde sunabilecek bir uzmana ihtiyacım var. Beklentilerim • Türkçe (tercihen ek olarak İngilizce) modern bir CV hazırlanması • İlgili anahtar kelimeleri içeren, kripto para odaklı ön yazı • Kısa, net ve güçlü bir LinkedIn profil metni (isteÄŸe baÄŸlı) &...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.