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:

  • Mining software and websites built with high security and integrity
  • Integrating blockchain functionality into web sites using SDKs
  • Automated trading systems to maximize profits on the cryptocurrency market
  • Secure wallets with features such as transfer tax with max fee functions
  • Real-time price notifications via Telegram or Discord

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.

De 38,518 opiniones, los clientes califican nuestro Cryptocurrency Experts 4.9 de un total de 5 estrellas.
Contratar a Cryptocurrency Experts

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:

  • Mining software and websites built with high security and integrity
  • Integrating blockchain functionality into web sites using SDKs
  • Automated trading systems to maximize profits on the cryptocurrency market
  • Secure wallets with features such as transfer tax with max fee functions
  • Real-time price notifications via Telegram or Discord

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.

De 38,518 opiniones, los clientes califican nuestro Cryptocurrency Experts 4.9 de un total de 5 estrellas.
Contratar a Cryptocurrency Experts

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    37 trabajos encontrados
    Bot Cripto Day-Trading
    2 días left
    Verificado

    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). ...

    €15 / hr Average bid
    €15 / hr Oferta promedio
    10 ofertas

    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...

    €321 Average bid
    €321 Oferta promedio
    6 ofertas

    I want to launch a full-featured web platform where users can swap value across different digital ecosystems. The exact mix of assets is still open for discussion—I might start with mainstream cryptocurrencies, expand to popular in-game coins, or even fold in loyalty points once the core is stable—so the architecture needs to stay modular and asset-agnostic. Here’s what I need from you: • A scalable backend that can plug into multiple asset ledgers (blockchain nodes, game publisher APIs, loyalty program endpoints) without rewriting core logic. • Secure user accounts with 2FA, encrypted wallets, and a clean audit trail of every transaction. • A matching engine that handles simple market/limit orders, shows real-time order book depth, and calculates fee...

    €575 Average bid
    €575 Oferta promedio
    9 ofertas

    I’d like to partner with a skilled cryptocurrency trader who can reliably turn a starting stake of about ₹100 per position into roughly ₹300. The core pairs I want you to trade are BTC/ETH, BTC/USD, and ETH/USD. If you spot a compelling edge in a different pair, feel free to propose it—my risk tolerance is flexible as long as the path to tripling the capital makes sense. Tell me, in plain terms, the strategy you’ll follow, the exchange and tools you prefer (e.g., Binance, Bybit, TradingView, Python bots, etc.), and how you’ll keep me in the loop on entries, exits, and portfolio status. I’m open to conservative, balanced, or aggressive tactics if the reasoning is clear and the numbers add up. Deliverables • An upfront plan outlining indicators, pos...

    €93 Average bid
    €93 Oferta promedio
    1 ofertas
    Elliott Wave Crypto Trader Needed
    6 días left
    Verificado

    I run a growing crypto-trading desk that relies on pure Elliott Wave analysis. Each day you will prepare a clear wave count on the majors, highlight only the high-probability entries, and execute the trades directly from our main Binance account – that’s the exchange we currently focus on, although we remain open to BingX later. For the first month we will treat the work as a paid onboarding period: $200 for daily analysis, trade execution, and a weekly voice call where we fine-tune rules and risk parameters. If our collaboration is smooth and consistent you move immediately to $250–$300 a month, with additional upside tied to the profits you help generate and any extra value you bring. Core requirements • Proven Elliott Wave track record in crypto markets &bul...

    €382 Average bid
    €382 Oferta promedio
    3 ofertas

    Product Overview P2P Crypto Marketplace for Digital Goods A decentralized, escrow-backed peer-to-peer marketplace enabling users to safely trade digital goods (subscriptions, gift cards, licenses, accounts) using cryptocurrency, launched as a Telegram Mini App for instant global reach. The platform eliminates trust issues in digital goods trading by combining KYC verification, smart-contract escrow, and multi-step trade validation. Core Value Proposition Trade digital goods globally with crypto—without trust, fraud, or delays. No chargebacks No middleman holding funds No long onboarding Built for crypto users, not adapted for them How It Works (Trade Flow) User Verification Telegram login (one-tap) Mandatory KYC (basic → advanced tiers) Wallet connection (EVM-comp...

    €221 Average bid
    €221 Oferta promedio
    2 ofertas

    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...

    €11836 Average bid
    €11836 Oferta promedio
    28 ofertas

    Hi I will share the details with the shortlisted candidates. Thanks

    €17 / hr Average bid
    €17 / hr Oferta promedio
    1 ofertas

    Hi I will share the details with the shortlisted candidates. Thanks

    €10 / hr Average bid
    €10 / hr Oferta promedio
    2 ofertas

    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.

    €482 Average bid
    €482 Oferta promedio
    22 ofertas

    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...

    €24 / hr Average bid
    €24 / hr Oferta promedio
    11 ofertas

    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.

    €134 Average bid
    €134 Oferta promedio
    7 ofertas

    Hi I will share the details with the shortlisted candidates. Thanks

    €421 Average bid
    €421 Oferta promedio
    1 ofertas

    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...

    €88 Average bid
    €88 Oferta promedio
    52 ofertas

    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

    €103 Average bid
    €103 Oferta promedio
    5 ofertas
    Full-Stack Web3 Engineer (USDC)
    4 días left
    Verificado

    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...

    €3570 Average bid
    €3570 Oferta promedio
    37 ofertas

    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...

    €14 - €116
    Sellado
    €14 - €116
    10 ofertas

    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 &...

    €329 Average bid
    €329 Oferta promedio
    11 ofertas

    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...

    €3814 Average bid
    €3814 Oferta promedio
    71 ofertas
    Boost Crypto Community Engagement
    4 días left
    Verificado

    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 ...

    €393 Average bid
    €393 Oferta promedio
    15 ofertas

    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...

    €307 Average bid
    €307 Oferta promedio
    2 ofertas

    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...

    €44 / hr Average bid
    €44 / hr Oferta promedio
    18 ofertas

    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...

    €13190 Average bid
    €13190 Oferta promedio
    74 ofertas

    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...

    €23 / hr Average bid
    €23 / hr Oferta promedio
    3 ofertas

    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 ...

    €32 / hr Average bid
    €32 / hr Oferta promedio
    10 ofertas

    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...

    €148 Average bid
    €148 Oferta promedio
    6 ofertas
    Gate.io Account Creation Help
    2 días left
    Verificado

    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...

    €4 - €7 / hr
    €4 - €7 / hr
    0 ofertas

    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 ...

    €799 Average bid
    €799 Oferta promedio
    25 ofertas

    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...

    €20 / hr Average bid
    €20 / hr Oferta promedio
    5 ofertas
    Crypto Trading App SEO System
    2 días left
    Verificado

    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...

    €476 Average bid
    €476 Oferta promedio
    59 ofertas

    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...

    €1356 Average bid
    €1356 Oferta promedio
    81 ofertas

    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...

    €917 Average bid
    €917 Oferta promedio
    101 ofertas

    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.

    €69698 Average bid
    €69698 Oferta promedio
    12 ofertas
    BitcoinPHP Bech32 Address Export
    11 horas left
    Verificado

    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.

    €301 Average bid
    €301 Oferta promedio
    36 ofertas

    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 ...

    €13 Average bid
    €13
    2 participaciones

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