Cadena de bloques Jobs

Blockchain, is a technology that encompasses digital records or information, referred to as “blocks”, that are linked together securely and share the same network. This distributed ledger technology is the backbone of a new wave of innovation being implemented into our lives, with new disruptive applications and solutions seen in a growing number of industries. Clients may hire a Blockchain Developer to harness this power and build a secure digital platform tailored to their business needs.

A Blockchain Developer can create unique solutions leveraging blockchain technology to securely store, access, mine and distribute data in an efficient manner. They can leverage features such as blockchain tokens for payments, smart contracts for automated transactions, privacy layers and data protection techniques. Additionally, the expertise of a Blockchain Developer will ensure the project complies with industry standards, ensuring secure data and validation.

Here's some projects that our expert Blockchain Developer made real:

  • Creation of custom applications for fast and secure NFT (Non-Fungible Token) transactions
  • Developments of tools that allow synchronization with physical products using Bluetooth protocol
  • Integrations between wallets hosting cryptographic assets with ecommerce providers
  • The establishment of exploratory networks to provide insights into decentralized ecosystems
  • Developments to foster the growth of peer-to-peer energy trading networks

At Freelancer.com customers have posted amazing projects covering a variety of use cases related to blockchain utilising the Freelancer verified experts. With help from professionals on Freelancer.com customers can create unique projects addressing their business needs with safety, security and legality in mind. Rock your blockchain project today and hire an expert Blockchain Developer on Freelancer.com now!

De 74,393 opiniones, los clientes califican nuestro Blockchain Developers 4.82 de un total de 5 estrellas.
Contratar a Blockchain Developers

Filtro

Mis búsquedas recientes
Filtrar por:
Presupuesto
a
a
a
Tipo
Habilidades
Idiomas
    Estado del trabajo
    37 trabajados encontrados, precios en USD
    Desarrollador web 3 - Solana 6 días left
    VERIFICADO

    Necesito la colaboración de un desarrollador web 3 para la creación y despliegue de un token. Requiero de máximo compromiso.

    $133 (Avg Bid)
    $133 Oferta promedio
    14 ofertas

    Description: Are you a skilled MERN stack developer with experience in Web3 technologies? We're seeking a talented individual to join our team on a freelance basis to assist with the development of cutting-edge decentralized applications (dApps) using the MERN stack and integrating Web3 functionalities. Responsibilities: Collaborate with our team to design and develop decentralized applications (dApps) using the MERN stack. Implement smart contracts and integrate blockchain functionalities using or similar frameworks. Write clean, maintainable code and conduct thorough testing to ensure the reliability and security of the applications. Work closely with designers, product managers, and other stakeholders to translate requirements into technical solutions. Stay updated on emerging te...

    $23 / hr (Avg Bid)
    $23 / hr Oferta promedio
    48 ofertas

    I'm in need of an expert who can design an advanced market making bot to operate on Solana DEX. Key requirements: - Integration of predictive algorithms for efficient and profitable trades - Incorporation of standard deviation pricing for risk management - Effective reserve management to ensure liquidity is maintained While I'm not entirely sure about the trade frequency, it'd be useful to have this element be adjustable - depending on overall market conditions. For the successful participant, familiarity with Solana blockchain and prior experience in developing similar trading bots is crucial. Knowledge of predictive algorithms and pricing models will also be a significant advantage.

    $149 (Avg Bid)
    $149 Oferta promedio
    20 ofertas

    I'm seeking a developer capable of creating a new cryptocurrency. It should meet the following objectives: - Facilitate secure and transparent transactions - Enable fast and low-cost transactions - Promote decentralization and financial freedom Ideally, the cryptocurrency will function via: - Peer-to-peer transactions - Smart contracts - Privacy and anonymity features Finally, it must include the following features: - Scalability, to handle a growing number of transactions - Interoperability, for compatibility with various systems - Staking and rewards system to incentivize community participation Understanding blockchain. Whatever your role, you’ll need at least some grasp of blockchain technology – though depending on the job, it may not need to be extremely detail...

    $738 (Avg Bid)
    $738 Oferta promedio
    77 ofertas
    Urgent Ethereum Blockchain Project 6 días left
    VERIFICADO

    I am seeking a highly skilled blockchain developer, with extensive experience and expertise in Ethereum, matic, and Cardano. As this is a blockchain-based project, you must have a deep understanding of how these platforms work. Special consideration will be given to developers who have worked on a similar project before. While the question regarding programming languages was skipped, familiarity with popular blockchain-related languages like Solidity, JavaScript, and Java could add value to the completion of this project. Key Requirements: - Proven experience with Ethereum, Matic, and Cardano. - Understanding of blockchain technology and its application. - Preferred: Knowledge of programming languages (Solidity, JavaScript, and Java). This project needs to be completed as soo...

    $8716 (Avg Bid)
    $8716 Oferta promedio
    10 ofertas

    I'm currently in need of a skilled blockchain developer who can assist me. Ideal skills: - Proficiency in blockchain technology -Web development skills - Excellent problem-solving abilities Freelancers interested in this project should note: - Previous experience and past work in a similar niche will significantly influence the selection process. Please ensure to detail your related experiences when applying. This role promises to be an exciting one and ideally suited for a passionate blockchain enthusiast.

    $56 / hr (Avg Bid)
    $56 / hr Oferta promedio
    25 ofertas

    I need a skilled Python developer to build a Solana trading bot that acts on predefined criteria. Main tasks: MAINLY i want the trading bot to act as a volume increaser (to buy and sell tokens of same amount each time at random intervals) - Establish automatic buying and selling of Solana tokens. - Integration with the Raydium platform is a must-have feature. - Seamless integration with Raydium , Jupiter DEX. You will need to design a bot that performs operations completely automatically, without any need for manual approval.. (optional : orca, jupiter) - Instant buy/sell execution. - Full automation of trades. (it can have for example 2 modes volume increaser/ trading mode) Prospective freelancers should ideally have: -Experience in programming trading bots. - Excellent knowledg...

    $22 (Avg Bid)
    $22 Oferta promedio
    6 ofertas
    DeFi Smart Contract on Ethereum 5 días left
    VERIFICADO

    I'm seeking an adept blockchain developer with expertise in Ethereum-based smart contract development, specifically for a Decentralized Finance (DeFi) application. Key Requirements: - Proficient in creating Ethereum smart contracts - Solid experience and understanding of DeFi applications - Proven ability to create safe, efficient, and functional DeFi smart contracts. Your responsibility will be to develop a smart contract that runs smoothly, securely, and fulfills all the necessary functionality of a robust DeFi application. The smart contract will be audited independently for security and efficiency, so it's imperative that your work be of high quality.

    $418 (Avg Bid)
    $418 Oferta promedio
    10 ofertas

    I am searching for a professional web developer proficient in Solana ecosystem aimed at creating stellar decentralized financial (DeFi) applications. Key Requirements: * Experience in smart contract integration and payment gateway setup. * Ability to implement a minimalistic and clean frontend layout design. * Familiarity with DeFi space and user experience considerations. Given the complexities associated with DeFi, the ideal candidate should have proven ability to navigate the space and have a portfolio of past successful projects. The application must have smart contracts, payment gateway facilities, and simplistic design to ensure an optimal user experience without overly intricate graphics. Animation isn't necessary. If you are confident in your skillset and can deliver withi...

    $51 (Avg Bid)
    $51 Oferta promedio
    16 ofertas
    Crypto DAO / Dex and TG bot 5 días left
    VERIFICADO

    Hi, would you be able to do something like this? Create a DAO with features, using our token and NFTs to unlock premium features and other perks. For creative purpose / illustration: 7. types of features: 1. Maestrobot (tg bot) 2. (dapp) 3. Crypto mixer 4. Crypto/ NFTs staking 5. Referral system 6. Voting system 7. Crypto wallet Those are basically the features. The rest basically we would like for the design to look visually appealing and futuristic.

    $1332 (Avg Bid)
    $1332 Oferta promedio
    41 ofertas
    ERC token deployed to Base 4 días left
    VERIFICADO

    I am seeking a skilled blockchain developer with first-hand experience in cryptocurrency creation, aiming to utilize the Base blockchain platform for deployment. We are currently a ERC20 token we launched in September last year.

    $560 (Avg Bid)
    $560 Oferta promedio
    52 ofertas

    MUST APPLY: - If you've built already MEV Bot and Arbitrage bot in SOL - If you can prove how it works. Project Overview: I am seeking a skilled and experienced freelancer to develop a Maximum Extractable Value (MEV) bot for the Solana blockchain. This bot will specialize in front-running and arbitrage strategies. Responsibilities: Design and develop a robust MEV bot capable of identifying and exploiting profitable trading opportunities on the Solana blockchain. Implement front-running strategies to leverage the bot's position in the mempool (pending transaction pool) for advantage. Integrate arbitrage strategies to capitalize on price discrepancies between different DeFi protocols and exchanges on Solana. Utilize the Solana program library (SPL) and othe...

    $37 / hr (Avg Bid)
    $37 / hr Oferta promedio
    20 ofertas
    Web3 Developer for DeFi/DApps/Dex 4 días left
    VERIFICADO

    Looking for an experienced web3 developer, confident using blockchain technology for the updating Dex Key Qualifications: - Proven experience with Dex development - Proficient in Solidity and JavaScript Project Objective: - Build Decentralized Finance (DeFi) and Decentralized Applications (DApps) on the Ethereum platform. This role is best suited for a senior developer with a comprehensive understanding of Ethereum and the associated coding languages. You'll be instrumental in creating innovative DeFi and DApps tools, assisting our team in leveraging blockchain technology to its fullest potential.

    $15994 (Avg Bid)
    $15994 Oferta promedio
    26 ofertas

    I am looking for a game designer that is familiar with making Android games. The code is already there as it was purchased from CodeCanyon. However, we need to change the graphics of the game as well as add a functionality to login through Web3 Wallets. Here is the main game:

    $175 (Avg Bid)
    $175 Oferta promedio
    28 ofertas

    Project Description: We are a forex management company looking to innovate in the way we manage investments and payouts. Our goal is to develop a custom blockchain solution that will allow investors to securely invest in our forex trading operations and receive their profits in USDT. This project aims to enhance transparency, security, and ease of use for both our company and our investors. Key Features Required: Custom Blockchain Development: Design and develop a blockchain that is tailored to the needs of forex investment and payout management. The blockchain should be secure, scalable, and capable of handling a high volume of transactions. Smart Contracts for Investment and Payouts: Implement smart contracts to manage the investment process and profit payouts. These smart contracts ...

    $555 (Avg Bid)
    $555 Oferta promedio
    19 ofertas

    I'm seeking a proficient We3 developer who is well-versed in JavaScript to create a complex web application. This project will involve sophisticated interactions and data storage, so a standing understanding in these areas is critical. Key qualifications: - Proficient in JavaScript - Deep understanding of We3 - Previously designed advanced web apps - Experience with database management - Expertise in user interactions and operations Please share details about your background in We3 development, JavaScript, and any relevant previous projects.

    $17 / hr (Avg Bid)
    $17 / hr Oferta promedio
    49 ofertas

    I am looking for a professional experienced with WalletConnect v2 to integrate it into my staking website which is built on Binance Smart Chain. Key Goals: - To enable secure and convenient wallet connections to my staking website. - Facilitating easier wallet switching for seamless user experience. Ideal Candidate: - Has experience specifically with WalletConnect v2. - Deep understanding of Binance Smart Chain. - Proven track record in integrating bespoke blockchain solutions to enhance user experience.

    $629 (Avg Bid)
    $629 Oferta promedio
    18 ofertas

    I'm in need of an individual skilled in getting a specified GitHub project up and seamlessly running on my Windows-based system. Expectations: 1. You need to be experienced in handling GitHub projects 2. Knowledge in Node.js, React and blockchain required. 3. Knowledgeable in MongoDB as the preferred database management system for this task 4. Comfortable with any version of these tools and software as I have no specific preferences

    $64 (Avg Bid)
    $64 Oferta promedio
    10 ofertas

    ( Apply only if you can start ASAP) I'm in need of a well versed writer in the domain of blockchain technology, specifically with a deep understanding of Smart Contracts and Distributed Ledger Technology. The purpose of this report is to delve into these specific areas, exploring the pivotal details, potential applications, and their advanced functionalities. Key deliverables and capabilities required: • Comprehensive understanding of Blockchain, smart contracts, and distributed ledger technology. • Strong research and analytical skills to explore these aspects thoroughly. • Constructive writing, able to arrange findings in a clear, informative report. • Preferably if you have written blockchain-related reports previously. As this project doesn't specifi...

    $33 (Avg Bid)
    $33 Oferta promedio
    10 ofertas

    I need a capable guide to steer me through the complexities of the Ethereum blockchain. Skills and experience needed: - Intermediate level expertise in blockchain teaching - Profound knowledge of Ethereum blockchain technology - Ability to simplify and explain complex blockchain terminologies - Hands-on experience with Smart Contracts development, Ethereum Blockchain infrastructure, and DApps development Course requirements: - Assist me to gain intermediate level knowledge - Provide practical examples and ways to develop Smart Contracts and DApps - Give me deep insight into Ethereum blockchain infrastructure. Looking forward to a fruitful learning experience!

    $18 - $150
    $18 - $150
    0 ofertas

    I am seeking a skilled blockchain developer to construct a meme coin on the Injective protocol. The theme of this coin revolves around funny memes. The key aspects of the task include: - Developing meme coin on the Injective blockchain - Incorporating a sense of humor and creativity into the coin design -creating the contract -listing on dex if possible The coin is meant to appeal to the general public. Hence, it should be user-friendly and easy to understand, even for those not deeply familiar with cryptocurrencies. Ideal skills and experience include: - Proficient in blockchain development preferably in Injective protocol - Demonstrable experience creating coins or tokens - Strong understanding of cryptocurrencies and meme culture - Ability to translate complex concepts into user-fri...

    $579 (Avg Bid)
    $579 Oferta promedio
    6 ofertas

    ( Apply only if you can start ASAP) I'm in need of a well versed writer in the domain of blockchain technology, specifically with a deep understanding of Smart Contracts and Distributed Ledger Technology. The purpose of this report is to delve into these specific areas, exploring the pivotal details, potential applications, and their advanced functionalities. Key deliverables and capabilities required: • Comprehensive understanding of Blockchain, smart contracts, and distributed ledger technology. • Strong research and analytical skills to explore these aspects thoroughly. • Constructive writing, able to arrange findings in a clear, informative report. • Preferably if you have written blockchain-related reports previously. As this project doesn't specifi...

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

    Finish my code I am looking to gather a skilled team to design a decentralized metaverse map and small play area. The primary purpose of this project is to enhance social interaction online. The interactive features I would love to see in the play area include: - Voice Chat: Users should be able to easily communicate with each other through intuitive and smooth voice chat. - Multi-user activities: There should be engaging activities that multiple users can participate in simultaneously. These activities should foster social interaction in a light-hearted, fun environment. - Avatar customization: Users should have the freedom to customize their avatars to their liking. This personalization aspect is crucial to engage the users more effectively and make them feel invested in the metavers...

    $866 (Avg Bid)
    $866 Oferta promedio
    30 ofertas

    I'm in need of an adept blockchain developer who can quickly assist me in the design and development of two different Solana testnet smart contracts. Core requirements include: * Smart Contract Execution: Your primary task will be to develop smart contracts on the Solana blockchain testnet. Mastery of Rust and experience with Solidity and Solana's contract standards and libraries is critical. * Specific Functions: The contracts should allow for token transfers and transactions and should be capable of handling conditional logic and decision-making procedures. You'll need an understanding of data storage and retrieval in the context of Solana's chain. Given the as yet undefined purpose of the contracts, adaptability and a keen understanding of possible contract obj...

    $69 (Avg Bid)
    $69 Oferta promedio
    12 ofertas

    I'm looking sourcing for a blockchain software developer that has the capacity to create a software the can do flash of USDT & BTC The coin should be able to act as a real coin and it should be transferable to different wallets. Features that makes up the Flash USDT * software with 100% completion capable of properly utilizing tokens on TRC20, ERC20, BTC or another network ( main TRC20, ERC20 & BEP20 ) - Transferrable to any latest/active crypto wallet. * one day Transfer limit. (Negotiable) * convertible to specific active cryptocurrencies(BTC,ETH) - [ ] stays active For minimum of 120 days. - [ ] it should be exchangeable on p2p

    $9986 (Avg Bid)
    $9986 Oferta promedio
    9 ofertas

    I'm working on a personal project, I am seeking an experienced blockchain developer to create an Ethereum smart contract designed for arbitrage trading across multiple decentralized exchanges (DEXes). The project involves creating a smart contract similar to a provided example, with functionalities for automatically executing trades to capitalize on price differences between tokens across DEXes. The ideal candidate should have a strong background in Solidity and familiarity with the Ethereum blockchain, smart contract development, and DEX protocols. *** I already have an existing working code, I need someone to make the necessary changes for my needs. *** Requirements: - Strong experience in Solidity and smart contract development on the Ethereum platform. - Understanding of decent...

    $243 (Avg Bid)
    $243 Oferta promedio
    18 ofertas

    As the project lead on this venture, I'm seeking a tech-savvy blockchain developer with an inherent love for game development. This project involves creating a custom altcoin cryptocurrency on Solana, a white paper, a website where the cryptocurrency is presented with presale, and a simple game to be accessible on Android and iOS platforms linked with the custom altcoin. Your role will encompass: - Smart contract development - Cryptocurrency development and integration - Development of a user-engaging but simple game Your application will stand out if you have: - Proven experience in Blockchain Development. - Coherent knowledge of cryptocurrency integration and Smart contracts. - Prior proven experience in mobile game development, particularly Puzzle games. - Proficiency in Android...

    $2266 (Avg Bid)
    $2266 Oferta promedio
    15 ofertas
    Ethereum Token Creation Expert 1 día left
    VERIFICADO

    As an entrepreneur venturing into blockchain technology, I am primarily searching for an industry expert who can help successfully create an Ethereum-based token. Key Responsibilities: - Developing a smart contract for token creation - Ensuring the token is fit for purpose and reliable Ideal Candidate: - Mastery of Ethereum blockchain technology - Proven track record in smart contract creation - Ability to deliver top-quality work with little supervision Please note, a separate professional will perform the security audit afterward, meaning your focus should be solely on the development of the smart contract. Let's make a remarkable difference in the blockchain industry together!

    $172 (Avg Bid)
    $172 Oferta promedio
    7 ofertas

    I am searching for a well-versed blockchain professional with expertise in smart contract development, cryptocurrency aspects, and blockchain security. This project's primary goal is dual faceted, focusing on enhancing my existing systems' security and transparency and implementing new elements as per the situation's demand. My project needs include but are not limited to: 1. Crafting a blockchain-supported supply chain solution. 2. Implementing blockchain in financial transactions. The ideal candidate for this position would have previous experience in both fields and a robust portfolio of earlier blockchain work. Clear communication, problem-solving skills, and a proactive approach to facing challenges would also be appreciated. If you believe you fit this description, t...

    $16 / hr (Avg Bid)
    $16 / hr Oferta promedio
    45 ofertas

    Project Description: We are a forex management company looking to innovate in the way we manage investments and payouts. Our goal is to develop a custom blockchain solution that will allow investors to securely invest in our forex trading operations and receive their profits in USDT. This project aims to enhance transparency, security, and ease of use for both our company and our investors. Key Features Required: Custom Blockchain Development: Design and develop a blockchain that is tailored to the needs of forex investment and payout management. The blockchain should be secure, scalable, and capable of handling a high volume of transactions. Smart Contracts for Investment and Payouts: Implement smart contracts to manage the investment process and profit payouts. These smart contracts ...

    $394 (Avg Bid)
    $394 Oferta promedio
    11 ofertas

    ( Apply only if you can start ASAP) I'm in need of a well versed writer in the domain of blockchain technology, specifically with a deep understanding of Smart Contracts and Distributed Ledger Technology. The purpose of this report is to delve into these specific areas, exploring the pivotal details, potential applications, and their advanced functionalities. Key deliverables and capabilities required: • Comprehensive understanding of Blockchain, smart contracts, and distributed ledger technology. • Strong research and analytical skills to explore these aspects thoroughly. • Constructive writing, able to arrange findings in a clear, informative report. • Preferably if you have written blockchain-related reports previously. As this project doesn't specifi...

    $23 (Avg Bid)
    $23 Oferta promedio
    9 ofertas

    I'm seeking a developer experienced in creating crypto trading/arbitrage bots. This project specifically involves developing a bot for deployment on Binance that can handle one coin pair, specifically BTC/USDT. Key Responsibilities: - Create a crypto trading/arbitrage bot for Binance - Configure it to focus on maximizing profit primarily. The project will be paid in a single payment with no milestones. As such, I expect a structured and efficient approach to delivering this project on time. Skills required: - Proficient in software development and algorithm creation - Experience in Crypto trading bots - Familiarity with Binance's API - Understanding of the BTC/USDT coin pair dynamics. Having a well-rounded knowledge of cryptocurrency and the principles that govern its trade i...

    $3170 (Avg Bid)
    $3170 Oferta promedio
    38 ofertas

    As a tech-savvy entrepreneur, I am seeking an experienced software developer to create a cutting-edge token management platform using the Binance Smart Chain. Proficiency in smart contract development and web application integration is a must. Scope of Work: - Development of a smart contract with token creation functionality. - Incorporation of the smart contract into a web-based token management application. Key Qualifications: - Proven experience in implementing smart contracts on the Binance Smart Chain. - Prior work on token creation and management platforms. - Familiarity with front-end and back-end integration of web applications. If you have a passion for blockchain technology and the skills to make this project a success, I invite you to place your bid. With your help, we aim t...

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
    41 ofertas

    I am seeking an expert blockchain developer for minting a token on the Cosmos Zone. I am new to the world of crypto and have not yet decided on a name for my token. Key Responsibilities: 1. Minting a token on Cosmos Blockchain: You'll need experience in blockchain technology and minting tokens particularly on the Cosmos network. 2. Consulting on Token Naming: Any creative input would be most welcome. Ideal skills and experience: • Proficiency in blockchain technology, particularly Cosmos Network • Experience in minting tokens • Creative ingenuity able to contribute to token naming Please provide instances of prior projects where you have minted tokens, preferably on the Cosmos network.

    $695 (Avg Bid)
    $695 Oferta promedio
    12 ofertas

    As a project leader, I'm searching for a talented Rust developer with robust experience in web3 and blockchain, majorly revolving around Solana's ecosystem. The task entails working cooperatively with our dynamic team, and the role might expand into a long-term position given the right fit. Key project requirements your attention will be called to: - Creating and managing tokens - Smart contracts implementation - Structural development of tools Expertise and skills desired in the prospective candidate comprise: - Prior experience with web development and blockchain integration - Fluent in executing core functionalities using the Rust programming language - Knowledge about itemizing specific features, mainly smart contracts, token creation, and management, as well as tool build...

    $636 (Avg Bid)
    $636 Oferta promedio
    56 ofertas

    I am looking for a Solana expert for a small project. I need a python script to execute a swap on Raydium. Here is fucntion type(return whether the swap was successful and amount) def swap(fromToken, toToken, amount, slippage) Please bid only if you have previous work with python not javascript. Thanks.

    $149 (Avg Bid)
    $149 Oferta promedio
    18 ofertas

    Artículos recomendados solo para ti

    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.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ