You can earn money at Freelancer.com by using your bitcoin skills.

Bitcoin is a crypto currency, with the creation and the transfer of the bitcoins being based on a protocol that does not depend on the central authority. The coins can be transferred through computers or through smartphones and related devices, without the necessity of having a financial institution as an intermediate. This concept was established by Satoshi Nakamoto in 2008 and it was geared towards the world of electronic cash systems. If you understand more about this topic on a professional level, then you have a better chance to enjoy the advantages of being a freelancer at Freelancer.com.

Bitcoin has its own technical part that needs to be addressed by professionals. If you are one of them, then you should be on a platform that ensures the consistency of job posting by clients. When working as a bitcoin freelancer at Freelancer.com, you will have access to many of the jobs posted by clients from all over the world and bid on those that are within your professional level. There is too much to enjoy while working at the leading freelancer platform online, including getting paid at rates that your services deserve, giving you the encouragement you need to keep on working on more Bitcoin projects.

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    66 trabajados encontrados, precios en USD

    Se me ha atascado una transacción de criptomonedas en la red Etherum, necesito desbloquearlo.

    $24 (Avg Bid)
    $24 Oferta promedio
    3 ofertas

    Necesito un desarrollador blockchain para crear un juego NFT. con conocimiento en web3 para login con metamask

    $415 (Avg Bid)
    $415 Oferta promedio
    24 ofertas

    Outdated plugin needs patched for WooCommerce. Source code has been uploaded.

    $20 (Avg Bid)
    $20 Oferta promedio
    3 ofertas
    A NFT trading bot on BSC 6 días left
    VERIFICADO

    Want a trading bot to trade NFT on BSC, with some kind of dashborad to mange plot

    $203 (Avg Bid)
    $203 Oferta promedio
    3 ofertas
    Script for mempool - blockchain 6 días left
    VERIFICADO

    I need script which will analyse mempool for pending transactions, in meantime query tokens liquidity pools and send notifications via Telegram for certain condition Our source of mempool will be nodes, which you'll have to set up on my servers I'll need that for multiple blockchains .

    $641 (Avg Bid)
    $641 Oferta promedio
    16 ofertas

    We need someone who has knowledge in cryptos/NFTS and can take the key points of an article and write them down In the article, the author recommend some projects and coins The key points are : 1)Which coins/projects to buy / to look after 2)Why those coins/projects 3)The bad coins/projects to stay away from You need to be able to sort them out and make a comprehensive summarized text.

    $207 (Avg Bid)
    $207 Oferta promedio
    3 ofertas

    We need someone who has knowledge in cryptos/NFTS and can take the key points of an article and write them down In the article, the author recommend some projects and coins The key points are : 1)Which coins/projects to buy / to look after 2)Why those coins/projects 3)The bad coins/projects to stay away from You need to be able to sort them out and make a comprehensive summarized text.

    $82 (Avg Bid)
    $82 Oferta promedio
    35 ofertas

    NEED USDT (TETHER) OR BITCOIN IN BINANCE (BLOCKCHAIN) RIGHT NOW no upfront payment or anything.... Only bid if you have binance account budget 500 USD

    $250 - $750
    Sellado
    $250 - $750
    2 ofertas

    Our developers are building a website and apps. It is a mix of ''groupon'' and ''to good to go'' but only based on last minute. So any last minute place or cancellation or an appointment can be solved. The companies can put the free places or waste on the app and everyone in a certain area gets push notifications with the offers. This is very relevant because all other companies do not use this. In addition, we are also going to offer this same platform for B2B services. we want to develop our own cryptocurrency to increase the value of the platform. These coins will be earned by the companies as well as the consumers. if an consumer is buying a deal he get a piece of a coin..the company who is offering the deal gets also a piece.. on that same platf...

    $2043 (Avg Bid)
    $2043 Oferta promedio
    6 ofertas

    Outdated plugin needs patched for WooCommerce. Source code has been uploaded.

    $22 (Avg Bid)
    $22 Oferta promedio
    7 ofertas

    We are seeking to hire a remote Bookkeeper to take care of all our company day to day financial tasks. You will be responsible for Record day-to-day financial transactions and complete the posting process. Reconcile sales taxes, payroll taxes, 401k, and bank accounts at the end of each month. Monitor financial transactions and reports. Process accounts receivable and payable. Process checks. Understand ledgers. Work with an accountant when necessary. Handle monthly payroll using accounting so

    $35 / hr (Avg Bid)
    $35 / hr Oferta promedio
    37 ofertas

    NEED USDT (TETHER) or BITCOIN IN BINANCE Only BID if you have Binance account only. Start your proposal with Binance so i can know that you have read the project

    $250 - $750
    Sellado
    $250 - $750
    3 ofertas

    NEED USDT (TETHER) or BITCOIN IN BINANCE Only BID if you have Binance account only. Start your proposal with Binance so i can know that you have read the project

    $10 - $30
    Sellado
    $10 - $30
    1 ofertas
    pepper wallet(buy&sell) 5 días left
    VERIFICADO

    looking looking for a developer who can join our team and provide backend apis for xanpool. your task will be just to provide the apis

    $499 (Avg Bid)
    $499 Oferta promedio
    10 ofertas

    Jestem zainteresowany stworzeniem własnej kryptowaluty a kodzie bitcoina bądź ethereum

    $5093 (Avg Bid)
    $5093 Oferta promedio
    4 ofertas

    create multi wallet address like eth, bnb, btc, ltc, xrp in codeigniter like in paper-wallet but server side.

    $13 (Avg Bid)
    $13 Oferta promedio
    2 ofertas
    Flash BTC Solution Needed 5 días left
    VERIFICADO

    Hi, We are looking for a software solution for Flash BTC. This should not be enabled for more than 21 days. It should be transferable and also follow the below mentioned details: - Cannot cancel a transaction with bitcoin server - Can check the blockchain address before transaction - - Transaction can get full confirmation - -Support all wallet - -Segwit and legacy address – -100% confirmed transaction - You can spend bitcoins easily on any other address (Segwit address, legacy, Segwit / bch32) - - it works with all wallets. - -Should be tradable like real btc. withdraw from exchange not necessary

    $916 (Avg Bid)
    $916 Oferta promedio
    3 ofertas

    You have to create 3 scripts that: 1). will create a partial/unsigned transaction to spend from a 2-of-3 multisig address (already with funds) with Bitwasp PHP library. 2) create a script with bitcoinjs-lib that will take the above created tx hex and sign with one private key. 3) create a script with bitcoinjs-lib that will take the above signed tx's hex and sign the transaction with the final priv key in order to be ready to be broadcasted ( as hex ). More technical details in the PDF attached, like private keys and stuff that you can work with. My budget is around $50. If you know what you are doing, it should be very simple since there are plenty of examples with these libraries.

    $210 (Avg Bid)
    $210 Oferta promedio
    3 ofertas

    tron, ethereum, btc wallet codeigniter project on registration paper wallet server side

    $128 (Avg Bid)
    $128 Oferta promedio
    5 ofertas

    tron, ethereum, btc wallet codeigniter project on registration paper wallet server side

    $26 (Avg Bid)
    $26 Oferta promedio
    2 ofertas

    Please only reply if you are near me and can come personally ONSITE !!!! no remote bids needed I search for bitcoin fan in the Passau & UpperAustria Area who helps me PERSONALLY ONSITE to setup a TOR protected Server in my private home at the AustroBavarian border. 1. You come onsite to me 2. You advise me for hardware purchase (I buy myself) 3. You help me to install the bitcoin software 4. You setup the TOR router in addition to my existing network 5. You configure it as a hidden full node 6. Together, we start downloading the full ledger of the bitcoin blockchain (under 1 TB) you advise me in security issues, malware and virus protection TIME during DECEMBER 2021 onsite in Suben ... 1 or 2 days are enough. NO TRAVEL cost will be reimbursed, I want a local guy who charge...

    $1352 (Avg Bid)
    Local
    $1352 Oferta promedio
    5 ofertas
    Blockchain Developer -- 2 4 días left
    VERIFICADO

    Platform is used to fractionalise individual NFTs & Collections. a randomized auction structure built on hyperledger sawtooth.(PoET structure / Alternative Smart Contract Timer Type) (speed auction random Timer * new feature * , and regular auctions can be used) are used for the dapps liquidity into expanding channels of efficiency upload / gas reduction in fees . all types of tokens (ERC 1155 , ERC 720 , ERC 721) Curatorial explaining the platform / Design / User Friendly Experience. Main Colors Black and White , Orange/cyan blue 7. Overall Transaction fee of 1% 8. Chart / Top Collection Featured / percentage growth. Review Similar Projects / Suitability to create something like below:

    $3411 (Avg Bid)
    $3411 Oferta promedio
    26 ofertas

    Hallo wir suchen hiermit einen Developer für unseren neuen geplanten BSC Token. Sie sollten Erfahrung mit der Binance Smart Chain haben und die Erstellung von Contracts. Ein wichtiger Zusatz ist die Einbindung einer Gebühr von 1% auf jede Transaktion, die auf eine separate Wallet überwiesen wird. Keine Sorge, jeder wird vor Abschluss des Kaufs darüber in Kenntnis gesetzt. Dieser Prozess muss zwangsläufig auf allen Trading Plattformen einwandfrei funktionieren. Weitere Informationen dann gerne im Chat.

    $4681 (Avg Bid)
    $4681 Oferta promedio
    3 ofertas

    create types of crypto wallet like paper wallet in codeingiter project server side.

    $20 (Avg Bid)
    $20 Oferta promedio
    1 ofertas

    create types of crypto wallet like paper wallet in codeingiter project server side.

    $1006 (Avg Bid)
    $1006 Oferta promedio
    1 ofertas
    Copy trading bot for crypto 4 días left
    VERIFICADO

    I need a copy trading bot for crypto: I have a bot on 3commas that is connected to my FTX account and another one connected to my Binance account. The 3commas bot is giving orders automatically to my accounts on both exchanges. I want a solution where people can give me their account's APIs and I connect their accounts to mine, in a way when 3commas gives my account an order, they will receive the same order on their account also through my copy trading bot. I want to have two options when copying: 1- To copy the exact value of the orders in USD. For example if my base order size is 10 USD, then their base order size is also 10 USD. If my safety order size is 20 USD, they have the same 20 USD as a safety order size regardless of how much budget they have. 2- To copy the percentage...

    $1664 (Avg Bid)
    $1664 Oferta promedio
    33 ofertas
    Bitcoin website 4 días left

    Hello i wish to create a cryptocurrency descentralized exchange with staking option ... inbox me for more details

    $888 (Avg Bid)
    $888 Oferta promedio
    29 ofertas

    tron and ethereum wallet codeigniter project on registration paper wallet server side

    $13 (Avg Bid)
    $13 Oferta promedio
    1 ofertas

    tron and ethereum wallet codeigniter project on registration paper wallet server side

    $24 (Avg Bid)
    $24 Oferta promedio
    6 ofertas

    Looking for a developer who has experience with Wordpress, Woocommerce and Bitcoin plugins. I have an outdated plugin that needs updated and made compatible for current Wordpress & Woocommerce version.

    $156 (Avg Bid)
    $156 Oferta promedio
    20 ofertas

    Buscamos un compilador que cree un contrato de token de utilidad ERC-20 que tenga las siguientes características: Transacciones de tarifas -1% de recompra: recompra del token -1% de liquidez: añadir liquidez -1% Enviar a una billetera específica. Necesitamos un contrato inteligente fuerte sin puertas traseras y con total seguridad porque últimamente lo auditaremos. ------ We are looking for a compiler that will create a utility ERC-20 token contract that has the following characteristics: Fee transactions -1% Buyback: Buyback of the token -1% Liquidity: Add liquidity -1% Send to a specific wallet. We need a strong smart contract with no backdoors and full safely because lately we will audit it.

    $358 (Avg Bid)
    $358 Oferta promedio
    24 ofertas
    B.T.C FLASHING SOFTWARE 3 días left
    VERIFICADO

    Defined the charges of the blockchain networks for a quick confirmation - bitcoins can stay in the wallet for at minimum 60 days -VPN and TOR options included with proxy - file is more powerful than a 20,000TH / S key Cannot cancel a transaction with bitcoin server -Can check the blockchain address before transaction - -Transaction can get full confirmation - -Support all wallet - -Segwit and legacy address – -100% confirmed transaction - You can spend bitcoins easily on any other address (Segwit address, legacy, Segwit / bch32) - - it works with all wallets. - -Should be tradable like real btc. withdraw from exchange not necessary Can be transfarable wallet to wallet more then 5 times minimum

    $3690 (Avg Bid)
    $3690 Oferta promedio
    13 ofertas

    Only write if you can do it immidiately!!! To prevent market manipulation, the community has decided to implement a 1% selling limit on whales (the percentage was determined by the community). What this means is that a whale will not be able to sell 1% of the total circulating supply in one transaction. 1% of the total market supply is 4,874,872,448,961.76 (4.8T). They would have to break up their sales, which would cost them 6% tax, thus helping mitigate market manipulation. In addition to the whale protection, the community has also decided to implement Marketing, Dev, and EcoFund fees. The percentages were determined by the community and they are broken down as follow: Marketing Fee, 2.5% on purchases, 2.5% on sales. EcoFund Fee, 2.5% on purchases, 2.5% on sales. Dev Fee, 1% on purc...

    $705 (Avg Bid)
    $705 Oferta promedio
    18 ofertas
    Creating a Token 3 días left
    VERIFICADO

    Hello, I've several project in freelancer.com. Now, I want to start a different project. Creating "Token" with the following main details. > On BSC or AVAX > Whitepaper > Contract > API > ?About the unsupported countries need your suggestion to choose the most suitables? > ICO Support and > Continue supporting (may be under a different project title) --- > I need your ideas, queries/questions, > Bid Requests(for each step. Creating, improving, to continue, etc. ), > Deadline requests, Thanks.

    $9295 (Avg Bid)
    $9295 Oferta promedio
    18 ofertas

    Hi, I am looking for an expert blockchain developer who knows cronos chain, smart contract, fork swap well. I am gonna fork from scratch. Share more detail via chat. Preferred only expert developers.

    $24 / hr (Avg Bid)
    $24 / hr Oferta promedio
    29 ofertas

    Hello, I want to develop a small project, something very simple and that is to connect 30 exchanges (using the API) to get every second the buy price and sell price of bitcoin, save those queries in a database and then be able to query the database for the following metrics and filters: 1- Being able to filter queries by date range. 2- To be able to filter the queries by % profit. (Price difference between the selling price and the buying price, Arbitrage). The result of these two filters should show: - Number of operations with the selected profit (filter 2). - Indicate the number of times an exchange has been used to buy and to sell. - Profit in % higher The profit is calculated like this PriceSell/PriceBuy-100%. Example: PriceSellBTC: $55600. PricePurchaseBT: 55300$. Calculatio...

    $753 (Avg Bid)
    $753 Oferta promedio
    15 ofertas

    If you are familiar with NFT, it is best to be familiar with coinlist registration Please contact me

    $225 (Avg Bid)
    $225 Oferta promedio
    5 ofertas

    Hello, Our company need a bitcoin mining bot, that will yield higher. What we need you to provide for us before starting: 1. Full Requirements for the Bitcoin Mining Bot development. 2. Your previous work on this mining bot. 3. If you can assure us long-term relationship and solve our questions. Thanks.

    $578 (Avg Bid)
    $578 Oferta promedio
    5 ofertas

    want to buyyy USDT want expert trader

    $124 (Avg Bid)
    $124 Oferta promedio
    10 ofertas

    We need somebody who can fork FortressDAO token and help deploy the contracts in this repo: Must have experience in blockchain and be able to customize any code as needed and this will be an ongoing role where you will be used for any updates.

    $39 / hr (Avg Bid)
    $39 / hr Oferta promedio
    45 ofertas

    I am looking for someone to develope from start to finish a crypto mining pool for the coin, Hypercash (HC). After China cracked down on crypto, there is no longer a minable pool for Hypercash. If the project is successful, other minable coins are possible to expand the pool. Thank you

    $9461 (Avg Bid)
    $9461 Oferta promedio
    13 ofertas
    Fork OlympusDAO 2 días left
    VERIFICADO

    I am searching for a developer that has experience in forking Olympus DAO/time wonderland/snowbank If you have experience in doing this please contact me I am only looking for people that have done this work before

    $1455 (Avg Bid)
    $1455 Oferta promedio
    26 ofertas

    need smart-contract on BSC, liquidity pool only connected to FEGex not on pancake-swap, futures projects will be NFT marketplace, smart-contract... I just want to work with someone who loves his job and challenges. please feel free to reach out for any questions. Budget adjustable !

    $820 (Avg Bid)
    $820 Oferta promedio
    9 ofertas

    i'm using a github project which is monitoring binance api for announcement of new coins then it immediatly places a buy order (on ) when a new coin is announced. i need to make the following changes: 1) When it detects new coin, don't buy, but instead record the (highest price) reached for two minutes after the detection time. 2) Wait for price to go below the (highest price). 2) When price goes back to being equal or greater than the recorded (highest price) then place a buy order.

    $16 (Avg Bid)
    $16 Oferta promedio
    3 ofertas

    Hello, for a project I need a Cryptocurrency. I prefer Cardano or other Low energy Blockchain. I only accept applications of someone who has created a cryptocurrency before. Thank you

    $959 (Avg Bid)
    $959 Oferta promedio
    31 ofertas

    Point to be Considered 1) For flashing BTC in target wallet address options and QR code both available in the software 2) Software capable to send 1-100 BTC at a time and show in balance. 3) BTC Flashed by software must stay in the wallet minimum of 30 days after being Flashed in the target wallet 4) Flashed BTC by software in target wallet must move From 1 wallet to another minimum 9 wallets after Flashed in target wallet after that disappear ok 5) Flash BTC transfer can be transferable in BlockChain Binance & Coin base etc any crypto wallets are available in the blockchain. With the "BlockChain server" & "Binance server" options, 100% transferable. 6) Flashed BTC must be breakable in parts

    $209 (Avg Bid)
    $209 Oferta promedio
    6 ofertas

    Dear Potential Hires, My name is Chase Breitenbach, and I am the CEO and Co-Founder of DCA Electrical. We are a startup based in Austin, TX, that will be mining large quantities of Bitcoin and Bitcoin Cash in the near future.  In short, we are very interested in paying a premium for the most effective trading bot possible – one that will only need to sell Bitcoin Cash and Bitcoin. This trading bot would be designed to sell our Bitcoin, or Bitcoin Cash (depending on which of the two we mined for the previous hour), at the optimal price-point in the given time frame. This time frame would optimally conclude with us off-loading our mined Bitcoin/Bitcoin Cash to USDC at the 2-7 day price peak. We will be generating a large sum of cryptocurrency per day, so maximizing the...

    $683 (Avg Bid)
    $683 Oferta promedio
    12 ofertas

    I'm finding someone who have account on binance.com. This is urgent.

    $93 (Avg Bid)
    $93 Oferta promedio
    4 ofertas

    WANT SOMEONE PROVIDE VCC SERVICES VIRTUAL VISA CARD

    $195 (Avg Bid)
    $195 Oferta promedio
    2 ofertas

    I am trying to update old PIVX code to latest code but getting some issues, for example not updating masternode list due to "Got bad Masternode address signature"

    $14 / hr (Avg Bid)
    $14 / hr Oferta promedio
    7 ofertas

    Principales artículos de la comunidad Bitcoin