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.

Baseret på 37,646 bedømmelser, giver vores klienter os Cryptocurrency Experts 4.9 ud af 5 stjerner.
Ansæt 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.

Baseret på 37,646 bedømmelser, giver vores klienter os Cryptocurrency Experts 4.9 ud af 5 stjerner.
Ansæt Cryptocurrency Experts

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    35 jobs fundet

    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...

    €116 - €349
    €116 - €349
    0 bud

    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...

    €58744 Average bid
    €58744 Gns Bud
    34 bud

    I'm looking for an experienced developer to create a Web 3 video chat application for desktop. The platform should integrate multiple Web 3 technologies, including: - Blockchain - Cryptocurrency - Decentralized storage - Smart contracts - Video infrastructure Essential Features: - Secure login/authentication - End-to-end encryption Ideal Skills and Experience: - Proficiency in blockchain technology - Experience with cryptocurrency integration - Knowledge of decentralized storage solutions - Strong background in smart contracts - Expertise in video chat infrastructure development - Strong security practices in app development Please provide a portfolio showcasing similar projects.

    €2648 Average bid
    €2648 Gns Bud
    16 bud

    Socifi, our real-time Texas Hold’em poker web app, already has the core game loop, React lobby and table UI, and working game logic. The missing piece is a solid back end that persists data and ties everything together. What needs doing right away • Re-enable and wire up MongoDB so user profiles, game states (hands, pots, blinds, results), and transaction/payment records are stored, queried, and indexed efficiently. • Patch the current authentication flow so sign-up, login, and token refresh are reliable across reconnects and multiple tabs. • Activate or complete the half-finished features in the existing codebase (e.g., player avatars, hand history modal, chip top-up) and remove unused remnants. • Prepare environment variables, seeding scripts, and pr...

    €6344 Average bid
    €6344 Gns Bud
    68 bud

    Im looking to create my own cryptocurrency on the solana blockchain. 5 minutes work 1 billion coins. As low price as possible. 0.000000001$ select all coins - transaction fees on/earn by transactions on. select all coins and release all coins

    €161 Average bid
    €161 Gns Bud
    8 bud

    Im looking to create my own cryptocurrency on the solana blockchain. 5 minutes work 1 billion coins. As low price as possible. 0.000000001$ select all coins - transaction fees on/earn by transactions on. select all coins and release all coins

    €137 Average bid
    €137 Gns Bud
    7 bud

    I need a production-ready server dedicated to cryptocurrency trading that can seamlessly integrate with the Binance, Coinbase, and Kraken APIs. The core of the project is to centralize market data from those exchanges, analyse it in real time, execute strategies through automated bots, and allow end-users to open and manage their own trading accounts on the system. Key capabilities I expect: • Real-time data analysis: low-latency collection, cleansing and aggregation of tick-level data, plus the ability to run custom analytics or indicators on it. • Automated trading bots: strategy engine that can place, modify, and cancel orders on any of the three exchanges, with configurable risk parameters. • User account management: secure registration, role-based access, API-key...

    €46 / hr Average bid
    €46 / hr Gns Bud
    44 bud

    I’m ready to move from concept to code on a full-featured cryptocurrency trading platform. The core objective is clear: users must be able to trade multiple digital assets in a fast, reliable and secure environment. The minimum viable product therefore revolves around three pillars: 1. Real-time market data – tight latency on price feeds, order book depth and recent trades is essential. Whether you hook into existing exchange APIs, aggregate several sources, or build your own feed handler, the ticker and order book must update instantly without page refreshes. 2. Multi-currency support – at launch I want Bitcoin, Ethereum and at least three additional top-tier coins live, with the system architected so that adding new pairs later is straightforward. 3. Seamless order e...

    €529 Average bid
    €529 Gns Bud
    41 bud

    I have a nearly finished cryptocurrency payment gateway that lets online merchants accept TEXITcoin (TXC) and PUREmedal (PURE). The core smart-contract logic, checkout flow and database schema are already in place, and the stack is React on the front end with a Node.js back end. What I need now is an experienced full-stack Web3 developer who can tie up the loose ends, harden the code and get us to a production launch. Key gaps to close • Merchant dashboard polish – merchants must be able to generate API keys, configure webhooks, and choose between HD/xpub or static wallet addresses. • Checkout edge cases – customers see a payment address and live status updates; the status must stay accurate even on slow or re-orged blocks. • Reliable notifications –...

    €6150 Average bid
    €6150 Gns Bud
    67 bud
    Trace Exchange Behind Wallet
    4 dage left
    Godkendt

    I have a single wallet address and must understand which exchange or operator controls it. The job centres on transaction-pattern analysis rather than smart-contract performance or general network security. Using your preferred on-chain analytics stack—Etherscan, Blockchair, Chainalysis Reactor, Crystal, or similar—map the flow of funds, identify clustering links, and present evidence strong enough for compliance or investigative review. You will receive: • The wallet address in question • A brief chronology of the activity I have already logged I need back: • A concise report that names the most probable exchange/operator behind the wallet, with screenshots or query exports backing each conclusion • A clear explanation of the heuristics you applied (e.g.,...

    €65 Average bid
    €65 Gns Bud
    1 bud

    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...

    €9 / hr Average bid
    €9 / hr Gns Bud
    1 bud

    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...

    €9 / hr Average bid
    €9 / hr Gns Bud
    7 bud

    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 Gns Bud
    1 bud

    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...

    €352 Average bid
    €352 Gns Bud
    8 bud

    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...

    €392 Average bid
    €392 Gns Bud
    4 bud

    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 Gns Bud
    2 bud

    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...

    €11761 Average bid
    €11761 Gns Bud
    32 bud

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

    €17 / hr Average bid
    €17 / hr Gns Bud
    1 bud

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

    €10 / hr Average bid
    €10 / hr Gns Bud
    2 bud

    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.

    €483 Average bid
    €483 Gns Bud
    22 bud

    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 Gns Bud
    11 bud

    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 Gns Bud
    7 bud

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

    €422 Average bid
    €422 Gns Bud
    1 bud

    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...

    €87 Average bid
    €87 Gns Bud
    51 bud

    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 Gns Bud
    5 bud

    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...

    €3549 Average bid
    €3549 Gns Bud
    38 bud

    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
    Forseglet
    €14 - €116
    10 bud

    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 &...

    €322 Average bid
    €322 Gns Bud
    12 bud

    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...

    €3840 Average bid
    €3840 Gns Bud
    70 bud

    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 Gns Bud
    15 bud

    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...

    €245 Average bid
    €245 Gns Bud
    3 bud

    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 Gns Bud
    18 bud

    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...

    €13196 Average bid
    €13196 Gns Bud
    75 bud

    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 Gns Bud
    3 bud

    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 Gns Bud
    10 bud

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