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Hire the best Solidity Freelancers in the Netherlands

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  • $75 hourly

    • 5.0/5
    • (46 jobs)
    I'm Karim, a full-stack developer from the Netherlands with a strong background in building SaaS apps, AI platforms, and complex software. I've completed over 50 projects with more than $100M in processed value. I bring expertise and a focus on results to every project. KEY ACHIEVEMENTS: - SaaS Platforms: Built and launched SaaS apps that scale well, handle high traffic, and offer smooth user experiences. - AI Applications: Created AI-powered apps using machine learning for tasks like predictive analytics, natural language processing, and automation. - Complex Software Development: Designed solid backends with Node.js and Express, and modern frontends with React. - End-to-End Product Development: Developed custom software from idea to launch, ensuring great performance, scalability, and security. - Third-Party Integrations: Integrated payment gateways, APIs, and cloud services to boost app functionality and user experience. WHAT I OFFER: If you’re looking to build a SaaS app, an AI solution, or a custom software product, I focus on delivering top-quality, scalable solutions that fit your business needs. I specialize in: - Full-Stack Development: Creating strong apps with React, Node.js, Express, and MongoDB. - API Development: Building RESTful APIs and GraphQL endpoints for smooth data handling and growth. - AI Solutions: Developing AI apps that excel in data analysis, predictive modeling, and automation. - Security and Performance: Ensuring security, speed, and scalability in all projects, from startups to large enterprises. WHY WORK WITH ME? Building software isn't just about code—it's about understanding both technology and business. Many projects fail due to poor planning or technical issues. With my experience, I make sure projects are well-planned, executed with care, and delivered on time and within budget. READY TO START? Need a skilled developer to bring your vision to life? Message me "BOOK" to set up a free call. We’ll go over your project needs, find the best approach, and start creating a winning solution for your business.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    React
    Binance Coin
    Ethereum
    Smart Contract
    NFT Minting
    Cryptocurrency
    Blockchain
    Blockchain Development
    Blockchain Platform
    JavaScript
    web3.js
  • $75 hourly

    • 5.0/5
    • (22 jobs)
    ✅ TOP RATED Freelancer on Upwork, specialized in UI/UX design, Mobile App Design & App Development. I have worked with some of the top companies in the world such as: ✅ Disney ✅ Philips ✅ Netherlands Enterprise Agency My name is Maurice Weber and I am a full-stack designer and developer with more than 12+ years of extensive experience in designing numerous websites and mobile applications. I am very passionate about my work and I have worked with diverse individuals and clients from all over the globe. - Strong experience in Laravel, CodeIgniter, Cake PHP, JavaScript / Jquery, MySQL - Hands-on object-oriented PHP programming - API integration and development: Social media, Payment gateways, Google, E-commerce, Background check, Finance/Banking, Travel (GDS), Affiliate platform, WebRTC, SMS/Messaging, Email marketing etc. - AWS, S3, EC2, Lambda, ECS, Cloudfront, & Azure, Google cloud Mobile domain (Android & iOS both): Swift, Objective-C, Apple Xcode, Cocoa, Google Firebase, Kotlin, Java, Android-SDK, BLE, API integration, GPS development, XML, AWS etc. Experience in Third party API’s : 1. Chat API’S: Video Conferencing (Zoom/WebRtc/Opentok), Comet Chat, Quickblox, Olarkchat, Sockets.io 2. Order- Inventory APIs (Merchant APIs - Orders, Inventory, Messages): eBay seller API, Amazon MWS, iSigma 3: Stripe, Authorize.net, Google checkout, & SO on 4. e-Signature: DocuSign, HelloSign 5. SMS Gateways: Twilio API, Plivo, Clickatell, Esendex and mblox. 6. Social Media: Facebook Connect/Facebook (Like/Share), Twitter (Get/Post/OAuth), LinkedIn Connect and Google + API. 7. Travelport, Expedia, Agoda, Hoteltravel API's integration. 8. Reporting - Tableau, High charts, myDBR. Specialized in: 🔹 Adobe XD 🔹 Adobe Illustrator 🔹 Adobe Photoshop 🔹 Figma 🔹 Invision app 🔹 Marvel app 🔹 Zeplin 🔹 ProtoPie
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Blockchain
    Android Studio
    CRM Software
    web3.js
    UX & UI
    Android App Development
    SQL
    Figma
    Mobile App
    Mobile App Design
  • $75 hourly

    • 5.0/5
    • (5 jobs)
    I am Tim, a full stack developer with over 15 years of experience, specializing in building medium size and large projects. My expertise lies in leveraging a wide range of programming languages, frameworks, and tools to create dynamic and interactive applications that meet the unique requirements of each project. When I'm not coding, you can often find me exploring new technologies and attending tech conferences and meetups. I believe in the power of continuous learning and personal growth, and I actively seek out opportunities to expand my skill set and stay up to date with the latest industry trends. If you're looking for a skilled and dedicated Full Stack Developer who can deliver high-quality solutions tailored to your specific needs, I would be thrilled to discuss your project with you. Feel free to reach out to me, and let's start transforming your ideas into reality. Thank you for visiting my page, and I look forward to the opportunity of working together! Currently, I work with: Web3: Internet Computer Protocol (ICP), Solidity, Motoko Frontend: Jinja2, React.js, Angular, Next.js Backend: Node.js, Express, Python, Django, Java, Flask Mobile: React Native CSS: Bootstrap, Material UI, jQuery, Semantic UI, Tailwind CSS Databases: mySQL, MongoDB, Firebase, SQLite, PostgreSQL Other tools: Docker, Git, AWS, Jira Data scraping: Selenium, BeautifulSoup Data analytics: Google Colab, Matplotlib, Pandas, Plotly, Seaborn, IBM SPSS, Jupyter Data visualization: Tableau, D3
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Web3
    PostgreSQL
    Angular
    Next.js
    React Native
    Web Development
    TypeScript
    MongoDB
    Node.js
    ExpressJS
    React
    SQL
    JavaScript
    Python
  • $200 hourly

    • 5.0/5
    • (7 jobs)
    As the Chief of Tokenomics at Chainforce I've helped to create $335M+ in market cap. Chainforce is a leading-edge token engineering & token economics consultancy firm helping Founders & VCs to build, validate & launch their tokenized ventures and ecosystems with confidence in the spaces of DeFi, Web3 & GameFi. Chainforce is in a multi-dimensional business. We're about technological empowerment, economic innovation, and strategic education. These elements contribute to a comprehensive service beyond traditional consulting, making Chainforce a pivotal player in the evolving landscape of digital economies and blockchain technology. Our team brings together formal backgrounds in Computer & Data Science, Economics, and Finance for a profound comprehension of the complexities of token economics. We collaborate closely with clients to devise and implement bespoke solutions, amplifying growth and enhancing profitability. Our bespoke services include: ▪️ Token Strategy ▪️ Ecosystem Design ▪️ Incentives Models ▪️ Utility Design ▪️ Financial Models ▪️ Revenue Forecasting ▪️Token Value Engineering ▪️ Industry Benchmarking ▪️Token Economy Simulations ▪️Token Economy Stress testing ▪️Token Valuations ▪️Token Sales Strategy ▪️Launch Support for ICOs, IDOs, IEOs Reach out to us today if you're looking for a reputable partner that can guide you toward success. www [.] chainforce [.] tech
    vsuc_fltilesrefresh_TrophyIcon Solidity
    ICO Marketing
    Token Standard
    White Paper
    Business Plan
    DApps
    Blockchain
    Solana
    Tokenomics
    Blockchain Architecture
    Rust
    Smart Contract
    Python
  • $135 hourly

    • 5.0/5
    • (33 jobs)
    Highly skilled Smart Contract and Web3 Engineer. Certified in Web3 development, Golang, Rust, Solidity, and Blockchain Security. Hands-on experience with ERC404, ERC4337, ERC721AC, and other new protocols. Known for projects like Dash2Trade.com, Metcacade.co, Alpacadabraz.io, I have built a reputation as a Quality programmer in the Web3 space, with a specialism in security. Currently enrolled in Moralis In any given month, I am working on: • Smart Contract Audits • NFT Minting Engines • Custom Smart Contracts • Complex dApps and Blockchain Architecture. • Metaverse/Sandbox Development • Marketplaces & Decentralised Exchanges Communication and progress are my keys to success. Once I get started, I manage your project from start to completion. I also have comprehensive knowledge of subjects as crypto drainers, and the newest create2 mechanisms, as well as other known illicit tools. Feel free to ask me for a consultation on how to best protect yourself against them.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Artificial Intelligence
    ChatGPT
    JavaScript
    Ethereum
    Python
    Blockchain, NFT & Cryptocurrency
    React
    Blockchain
    Blockchain Security
    Smart Contract
    DApp Development
    NFT Marketplace
    Web3
    Blockchain Architecture
  • $45 hourly

    • 5.0/5
    • (3 jobs)
    With 7 years of extensive experience in the tech industry, I have a strong skill set in full-stack development, blockchain technology, and artificial intelligence. My expertise includes various programming languages and frameworks such as React, Node.js, JavaScript, Python, Django, and Vue.js. I have also explored blockchain, web3, solidity, rust, and bot development, making me an experienced developer capable of handling diverse and complex projects. Skills and Expertise: - Frontend Development: React.js, Vue.js, JavaScript, HTML5, CSS3 - Backend Development: Node.js, Python, Django - Blockchain & Web3: Solidity, Ethereum, Smart Contracts, DApps - Bot Development: Custom chatbots, integration with various platforms - AI & Machine Learning: TensorFlow, PyTorch, OpenAI API, Natural Language Processing (NLP) - Web Development: Full stack web applications, RESTful APIs, GraphQL - DevOps & Cloud: AWS, Docker, Kubernetes, CI/CD pipelines - Other Technologies: Rust, Git, SQL/NoSQL databases Throughout my career, I have successfully delivered numerous projects, ranging from web applications and mobile apps to blockchain solutions and AI-driven systems. My hands-on approach and commitment to staying abreast of the latest technological advancements ensure that I provide innovative and efficient solutions tailored to meet my client's needs. If you're looking for a reliable, experienced, and versatile developer to bring your project to life, let's connect! I would like to learn more about your needs and how I can help you achieve your goals. Feel free to reach out, and let's start a conversation!
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Vue.js
    Rust
    OpenAI API
    Machine Learning
    Artificial Intelligence
    Web3
    Bot Development
    Blockchain
    Django
    Python
    JavaScript
    Node.js
    React
  • $100 hourly

    • 5.0/5
    • (13 jobs)
    Hi! I'm a full-stack developer with more than 12 years of experience in development. If you need to receive responsive, maintainable and well-structured result – I'm a developer you're looking for. I'm «AVAILABLE» for hire. SPECIALIZATIONS =============== - React.js / React Native / Redux - Blockchain / solidity / truffle - Java / node.js / python - Databases BENEFITS ======== ✭ Responsive / Cross-browser / W3C valid code. ✭ Well-structured sources with Version Control Support (Git). ✭ Latest standards - HTML5, CSS3, Flexbox, Grid, Transitions & Animations, etc. ✭ Maintainable, clean, well-commented code. ✭ Accessibility support (WAI-ARIA). ✭ More than 9 years of experience in the full-stack development! SKILLS ====== ✔ React Native ✔ React.js ✔ Redux ✔ Node.js ✔ Java ✔ HTML / HTML5 ✔ CSS / CSS3 ✔ Sass (SCSS) ✔ SVG ✔ Javascript (ES6/ES2015+) ✔ jQuery ✔ Bootstrap 3/4 (upon request only, I don't use css frameworks in development) ✔ Gulp / Webpack ✔ Yarn / npm ✔ Sketch / Photoshop / Illustrator / Adobe XD ✔ Git (GitHub / BitBucket)
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Blockchain
    React Native
    Front-End Development
    Hybris
    Java
    Node.js
    React
    HTML
    Spring Framework
  • $90 hourly

    • 5.0/5
    • (23 jobs)
    🌟 Bio: Passionate about creating user-centric, innovative, and visually captivating products, I'm a seasoned product designer with a knack for turning ideas into remarkable digital experiences. With a background in digital strategy, I've honed my skills in translating concepts into seamless, user-friendly designs for companies such as: ✅ KLM ✅ NS (Nationale Spoorwegen) ✅ Air France ✅ PwC ✅ Transdev And dozens of startups of which a significant portion was backed by Y-combinator. 🚀 Skills: User-Centered Design: Crafting designs that put the user first, ensuring an intuitive and satisfying experience. UI/UX Design: Expertise in both user interface and user experience design, optimizing usability and aesthetics. Prototyping: Proficient in rapid prototyping tools like Figma, Sketch, and Adobe XD to bring ideas to life. Wireframing: Creating detailed wireframes to lay the foundation for user interface designs. Design Thinking: Applying design thinking principles to solve complex problems and drive innovation. Responsive Design: Ensuring designs are adaptable and perform flawlessly across various devices and screen sizes. Information Architecture: Structuring content and information for easy navigation and understanding. Interaction Design: Designing engaging and responsive interactions for web and mobile applications. Typography & Color Theory: Mastery of typography and color to create aesthetically pleasing designs. User Research: Conducting user interviews, surveys, and usability testing to gather valuable insights. Collaboration: Strong teamwork and communication skills, working closely with cross-functional teams. Project Management: Organizing and managing design projects from concept to delivery. Coding Basics: Familiarity with HTML, CSS, and JavaScript to collaborate effectively with developers. Accessibility: Ensuring designs are inclusive and compliant with WCAG guidelines. A/B Testing: Implementing and analyzing A/B tests to optimize user engagement. Visual Design: Crafting visually appealing graphics and illustrations that resonate with the target audience. Design Tools: Proficiency in Figma, Sketch, some Blender and Spline and many other design tools. Innovative Problem Solving: Creative problem solver with a keen eye for detail. Stakeholder Communication: Effective at presenting and justifying design decisions to stakeholders. Adaptability: Willingness to learn and adapt to new technologies and design trends. Let's collaborate to transform your product ideas into captivating, user-friendly designs that leave a lasting impression. Whether you're a startup or an established brand, I'm here to create meaningful, impactful experiences for your users. Together, we'll turn your vision into reality!
    vsuc_fltilesrefresh_TrophyIcon Solidity
    CSS
    Wireframing
    User Experience Design
    AngularJS
    React
    Digital Strategy
    Node.js
    ICO Marketing
    Blockchain
    ExpressJS
    Business Analysis
  • $35 hourly

    • 5.0/5
    • (1 job)
    Hello, I am new here in Upwork, I have been a Software engineer for plus than 3 years. I develop mainly Web and Mobile platform, using Modern Development Stack. I have experience as well in Blockchain Technology. 1. Front End Languages / Frameworks ◾ Javascript, ES6+, Typescript ◾ ReactJS - React Native, Redux, Next.js, Styled Component ◾ CMS and Web building platforms - WordPress. 2. Back End Languages / Frameworks ◾ Node - Express, Meteor ◾ PHP - Laravel, WordPress 3. Database ◾ NoSQL - MongoDB, Cassandra, DynamoDB, Redis ◾ Relational Database - MySQL, PostgreSQL, Oracle 4. DevOps ◾ Amazon Web Services, Google Cloud Platform, Heroku, Firebase, Docker 5. Blockchain Mainly using Solidity for the smart contract, Hyperledger Fabric, and BigChainDB 6. Other skills ◾ Bootstrap, Material-UI, Ant Design, Semantic UI ◾ Axios, GraphQL, Apollo ◾ Chart JS libraries, D3.js, jQuery & jQuery UI ◾ SOAP/REST/GraphQL API development ◾ Microservices, Sidekiq, Cron Job ◾ ESlint, StyleLint, Prettier I have worked with different teams from different nationalities ( MENA region, Canada, and Europe) and I have a degree in computer engineering. Feel free to contact me for any further help
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Hyperledger Fabric
    React Native
    Cryptocurrency
    Smart Contract
    Blockchain
    JavaScript
    Node.js
    MongoDB
    React
  • $44 hourly

    • 0.0/5
    • (17 jobs)
    Seasoned software engineer with an in-depth understanding of Web3, the EVM, backend development, and type-safe functional programming and experience with a wide range of different aspects of the tech stack that allows to quickly pick up new knowledge whenever it's needed.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    DeFi
    Cryptocurrency
    Data Mining
    Data Analysis
    Blockchain Security
    Blockchain Development
    Smart Contract Development
    Ethereum
    Rust
    Linux
    Haskell
    Software Development
    Functional Programming
  • $30 hourly

    • 4.8/5
    • (1 job)
    As a network expert, I am constantly staying up-to-date with the latest technologies and trends in the field. I am skilled in a wide range of new technologies and can help you implement them in your organization to improve efficiency and performance. Here are some of the new technologies I am proficient in: Cloud Computing: I have experience with cloud computing platforms such as Amazon Web Services (AWS) and Microsoft Azure. I can help you move your network infrastructure to the cloud, allowing for greater scalability, flexibility, and cost-effectiveness. Software-Defined Networking (SDN): I am skilled in SDN technologies such as OpenFlow and can help you implement them in your network. SDN allows for greater control and flexibility in network management, and can improve network performance and security. Virtualization: I have experience with virtualization technologies such as VMware and Hyper-V. I can help you implement virtualization in your network, allowing for greater efficiency and flexibility in resource management. Internet of Things (IoT): I am knowledgeable in IoT technologies and can help you implement them in your network. IoT devices can collect and transmit data in real-time, allowing for greater automation and efficiency in network management. Artificial Intelligence (AI): I have experience with AI technologies such as machine learning and can help you implement them in your network. AI can be used to analyze network data and optimize network performance, improving efficiency and reducing downtime. Overall, my proficiency in new technologies makes me an ideal candidate to help you in your needs
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Project Scheduling
    Critical Thinking Skills
    Leadership Skills
    Digital Project Management
    OS Security
    Web Development
    Windows Server
    Communications
    Computer Science
    Operating System
    Blockchain
    Project Management
    Routing
    Network Engineering
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    10 years experienced full-stack web and 3 years experienced blockchain developer. Skillsets - Golang/Gin/Beego/GoFrontend/GoAdmin - Python/Flask/Django - Solidity, Rust, Truffle, Hardhat, Waffle - Dapp, Dex, Cex, Defi, DAO - React, Redux, Next.js, GraphQL, Web3.js/Ether.js, Vue.js, Angular - Node, Express, Nest.js - MongoDB, MySQL, PostgreSQL - DevOps, AWS - Agile Development ...
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Ethereum
    Blockchain Architecture
    Blockchain
    NFT
    Blockchain Tokenization
    Smart Contract
    JavaScript
    TypeScript
    Next.js
    Rust
    React
    GraphQL
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    ★★★★★ I'm a proficient developer with outstanding experience in building websites, mobile apps and blockchain DApps for medium and big scaled businesses, even enterprises. Whether you're trying to win work, list your services or create a whole online store - I can help you to accelerate it! Web - Frontend : React.js, Vue.js, Angular, Svelte.js, JQuery, ES5/ES6 - Backend : Laravel, Wordpress, Node.js, Ruby on Rails, Django, Shopify - Database : MySQL, MongoDB, PostgreSQL - Front End • HTML, CSS, JAVASCRIPT • REACT, ANGULR, VUE, NEXT.JS, NUXT.JS - Back End • PHP, LARAVEL, CI, wordpress • NODE.JS, NEST.JS • DJANGO • RUBY ON RAILS Mobile • JAVA, KOTLIN • OBJECTIVE-C, SWIFT • REACT NATIVE, FLUTTER - BLOCKCHAIN • SOLIDITY • RUST Game • Unity 3D • Unreal Engine • Cocos 2D Do what you love and love what you do! I am looking to take part in unique and interesting / innovative projects. That's the elite top 1%!
    vsuc_fltilesrefresh_TrophyIcon Solidity
    MEVN Stack
    React Native
    Swift
    Artificial Intelligence
    MERN Stack
    Blockchain Development
    Web Development
    Unreal Engine
    Game Development
    Unity
    Flutter
    Mobile App Development
    Rust
    Kotlin
  • $45 hourly

    • 0.0/5
    • (0 jobs)
    I am a full stack developer that specializes in blockchain. I love reviewing business processes and finding ways to simplify, automate, and reduce costs. If you have a costly manual process reach out to me and we can start a discussion on how it can be automated, and simplified to make your business more profitable. My primary programming languages are PHP, Node.js, Vue.js, solidity, rust, web3.js and SQL. I have a passion for building custom fast and responsive sites using AWS Lambda, and S3 to make sure that my sites are lightning fast, and easy to use. I also have experience creating progressive web applications that work both online and offline, as well as working with local small businesses. I would love to sit down with you and discuss your project in detail and learn how I can help make your ideas a reality.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Smart Contract
    styled-components
    CSS Framework
    Blockchain
    web3.js
    Shopify
    Tailwind CSS
    React
    Angular
    Microsoft SQL Server
    MySQL
    MongoDB
    ExpressJS
    WordPress
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I am Senior Full stack Developer with 8+ years of experience in the entire Frontend development lifecycle with a strong focus on software architecture and design, DevOps, Agile project management, and leading distributed teams. He has worked on many diverse projects in different industries leading and performing the planning, analysis, design, development, quality assurance, infrastructure setup, deployment, monitoring, and maintenance of custom high-scale web and mobile applications. - Web Backend and Desktop Flask, Dash, Django, Spring, Go, Rust, Ruby on Rails, PyQt, Tkinter, Kivy - Frontend Stack React + Redux, Angular 9+, Vue, Vuetify, Typescript, jQuery, Javascript, Bootstrap - Cloud Experience AWS Lambda, Amazon S3, Dynamo DB, AWS Route 53, AWS Chalice, Microsoft Azure, Serverless, Nginx, Gunicorn, Apache, Docker Compose, Ubuntu, IIS, Amazon EC2 - Database Stack MySQL, PostgreSQL, MongoDB, DynamoDB, Redis, GraphQL, Neo4j, Oracle - Hands-on Experience • DeFi, NFT Minting, Solana, Ethereum, Solidity, and DEX • ML engine integration and algorithm simulation • Data ETL and document processing between Excel, PDF, JSON, CSV, and XML • Data visualization using Highcharts, Plotly, D3.js • Interactive GIS Map based on ArcGIS, Leaflet, Mapbox, and ESRI • CLI scripts, Restful API implementation, Authentication • Web data scraping based on Scrapy, BS4, and Requests
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Blockchain Development
    NFT
    Material UI
    Node.js
    Front-End Development
    NestJS
    Next.js
    Web Development
    React
    Responsive Design
    MongoDB
    MySQL
    Rust
    Back-End Development
  • $40 hourly

    • 5.0/5
    • (2 jobs)
    Hi I am Ventsislav Zahariev from the Netherlands. I have successfully built many websites such as NFT marketplaces, DEX and DEFI projects from scratch. Some of my technical skills are: - Rich Experience in Blockchain development (Ethers.js, Web3.js, Solidity, Smart Contract, TheGraph) - Solid Experience in Frontend pixel perfect development (HTML, CSS, React.js, Vue.js, Next.js, Redux, TailwindCSS) - Skilled Experience in Backend development and API Integration (Node.js, Express.js, Laravel, Python, ChatGPT, RestfulAPI, GraphQL) - Working with SQL based databases (MySQL, MongoDB, Postgres) Thank you for your time and consideration. I am looking forward to hearing from you soon. Kind regards
    vsuc_fltilesrefresh_TrophyIcon Solidity
    web3.js
    Smart Contract
    Ethereum
    Blockchain
    Vue.js
    Python
    React
    Node.js
    Laravel
  • $40 hourly

    • 4.3/5
    • (9 jobs)
    Professional software engineer with 10 years of experience, enjoy technology problem-solving and creating practical solutions. Fluent in Python, React, React Native, JavaScript/Typescript, Java/Spring Boot, Node, Electron, Web3, Solidity, Rust, Pine Script, and AWS. Happy to offer the following services: - NFT marketplace | game, Smart Contract, DApp | DeFi, ICO | IDO, DAO, Arbitrage| MEV| Sandwich bot - Automated Trading Bot, TradingView, Indicator, Trading Strategy In addition to my technical expertise, I bring valuable startup experience, having been an integral part of early-stage companies and projects. Committed to providing customers with top-notch quality services and guaranteeing a quick turnaround time. Eagerly welcome new opportunities to further expand my knowledge and make an impact in the software space.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    DeFi
    DApps
    React
    Web3
    Forex Trading
    Blockchain, NFT & Cryptocurrency
    Bot Development
    Rust
    Node.js
    Ethereum
    Smart Contract
    Java
    Python
    JavaScript
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    Experienced Web & Backend Developer | API integration expert | AWS & Blockchain Specialist About Me: I'm a versatile software developer with 5 years of experience specializing in web development, backend development, AWS, and blockchain technology. I hold a Bachelor's degree in IT and have a strong proficiency in JavaScript, Python, React, Node.js, and Flutter. My goal is to deliver elegant and efficient solutions that provide tangible value to my clients. Services Offered: Full-Stack Development: From concept to deployment, I handle all aspects of web development using modern frameworks and technologies. Backend Development: Expert in building robust and scalable backend systems, API development, and integrations. AWS Solutions: Optimize your cloud infrastructure, manage deployments, and ensure your applications are scalable and secure. Blockchain Development: Develop decentralized applications and integrate blockchain technology into existing systems. Bug Fixing & Feature Development: Quickly identify and resolve issues, and enhance your applications with new features. Consulting: Provide expert advice on best practices, architecture, and technology stack choices. Notable Projects: Transaction Categorization & Automation: Developed a system to categorize transactions from different banks, automatically booking them in Exact Online and generating automated reports. Real Estate Web Scraper: Created a web scraper to aggregate and categorize real estate listings from various websites, automatically responding to listings that met specific criteria. Codebase Optimization: Optimized and rewrote a codebase built by a third party, including improvements to the database, AWS architecture, backend, and login portal. API Development: Developed and integrated APIs to enhance functionality and connectivity for various applications. Industry Experience: I have extensive experience working with clients in the real estate and construction sectors, delivering tailored solutions that meet their unique needs. Work Style & Philosophy: My approach is to "get it to work first and then get it to work well." I prioritize tackling low-hanging fruit and seeing the big picture to deliver quick wins and long-term value. I am detail-oriented, efficient, and highly collaborative, ensuring that projects are completed on time and within scope. Availability: I am available to take on projects on Fridays and Saturdays, dedicating 8-16 hours a week for serious and committed project owners. Project Management: While primarily a developer, I can also offer project management services, including Agile (Scrum) methodologies, creating epics and user stories in Jira, and utilizing the MoSCoW prioritization technique for project planning and technical requirements. Contact Me: I am available for video calls, LinkedIn messages, and messages on Upwork. Let's discuss how I can help you achieve your project's goals.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    TypeScript
    Java
    Hardhat
    MongoDB
    Firebase
    Python
    JavaScript
    React
    Responsive Design
    Next.js
    Flutter
    Blockchain
    Blockchain Architecture
    Web Development
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    With 8 years in IT engineering, I'm your go-to person for Blockchain, Web3, Backend work, Python, and Server setup. I'm all about the details, thriving on solving tricky problems with creative solutions. Why choose me? I'll build your custom apps just the way you want, and I'll make sure it's all done on time and hassle-free! *Successful Projects: $18M in ERC-20 token market cap, $10M funding raised in a blockchain project, and $1M in NFTs* I've been part of some cool projects: - MBD Financials: Helped launch the NFT Marketplace - Omni Mosquitoes NFT: Helped them with multichain NFT Collection - CryptBartex: Helped them to develop a complete solution for Digital Assets Swap Here's what I bring to the table: Languages: - JavaScript (ReactJS, NextJS, NodeJS) - Python - Solidity Databases: - MongoDB - PostgreSQL - MySQL Blockchain Skills: - Blockchain Protocols - Copy trading tricks - DEFI - Ethereum Dapps - Ethereum Smart Contracts - Ethereum NFTs and Tokens - Telegram Crypto Bots - Telegram Mini Apps - NFT Marketplace - Staking Dapp - Token Launchpad and Token Crosschain Bridge - Escrows - Smart Contracts - Smart Contract Audit - Exchange development (CEX) - Decentralized exchange work (DEX) - ICO/IDO - Wallets - TradingView configuration - Metaverse - GameFi Blockchain Development Tools: OpenZeppelin Truffle - MetaMask - Wallet Connect - Ganache - Remix IDE - Geth - Web3py - Web3.js - Ethers.js - Infura - Brownie - Alchemy Blockchain Platforms: - Bitcoin - Ethereum - Binance Smart Chain (BNB) - Avalanche (AVAX) - Polygon (MATIC) - Uniswap (UNI) - TRON (TRX) - Decentraland (MANA) - PancakeSwap (CAKE) Ready to bring my experience and knack for problem-solving to your projects. Let's make tech work for you!
    vsuc_fltilesrefresh_TrophyIcon Solidity
    web3.js
    Ethers.js
    Blockchain
    NFT Marketplace
    Smart Contract Development
    Ethereum
    DApps
    Blockchain Development
    Cryptocurrency
    Web3
    React
    Next.js
    Python
    Django
  • $42 hourly

    • 0.0/5
    • (0 jobs)
    Hi, I'm an experienced blockchain developer, I specialize in the design, development, and maintenance of distributed ledger technology (DLT) systems, with a focus on blockchain. I have expertise in programming languages such as Solidity, Go, and C++, and am able to create decentralized applications (dApps) and smart contracts on various blockchain networks, including Ethereum, Bitcoin, and Hyperledger. I have experience in working with different clients and have successfully delivered various blockchain-based solutions across different industries such as finance, supply chain, and gaming. I also keep my self-updated with the recent developments and advancements in the blockchain technology to keep my skillset updated. I am a self-motivated, detail-oriented, and adaptable professional. I am skilled in working remotely and communicating effectively with clients to ensure that the projects are delivered on-time and to the highest quality. I am always ready to take on new challenges and I am confident in my ability to develop robust and secure blockchain solutions that meet the unique needs of my clients.
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Next.js
    Solana
    Rust
    Smart Contract
    NFT
    Cryptocurrency Trading
    TradingView
    Ethers.js
    Ethereum
    Blockchain Architecture
    Blockchain
    Golang
    Node.js
    JavaScript
  • $40 hourly

    • 5.0/5
    • (1 job)
    I'm Senior Software Engineer with more than 9 years of solid experience in the information technology and services industry. Previously I have worked in various IT fields, starting with Web and Mobile App. I am a self-motivated and diligent computer programmer who finds that the best way to come up with solutions is to think outside the box. I believe that when it comes to programming work, it's equal parts creativity and logic. I have found that being a positive, disciplined, and an effective communicator I am able to not only get through any challenge, but I'm able to evoke the same measure of resilience from those around me. Here is a list of what I worked with: Blockchain Skills: Ethereum, BSC, Solana, Bitcoin, DAO, NFT, Defi, Dapp, Dex Front-end Skills: React, Angular.JS, Vue.JS , Javascript/jQuery, HTML5, CSS3, Bootstrap, Back-end Skills: Node.JS/Express.JS, PHP (Laravel, CakePHP, Yii 1.x&2, Codeigniter, Zend, Symfony, Wordpress, ROR), Python(Django)
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Blockchain
    NFT Marketplace
    Smart Contract
    Cryptocurrency
    web3.js
    Tailwind CSS
    Vue.js
    React
    Angular
    Node.js
    TypeScript
    PHP
  • $50 hourly

    • 5.0/5
    • (1 job)
    With over 10 years of experience in software development, I have strong knowledge and experience in the blow skills. 🏆Front-end 🏆 ✅ React.js, Redux, Redux-Saga, Redux-thunk ✅ TypeScript ✅ React-Native/Expo ✅ Vue.js, Vuex, Vuetify ✅ Angular, Ngrx ✅ Styled-component, Tailwindcss ✅ Material UI, Ant Design, BootStrap, HTML, CSS, Canvas 🏆Back-end 🏆 ✅ JavaScript - Node.js, Express.js ✅ PHP - Laravel, WordPress ✅ Python - Django, Flask ✅ Ruby on Rails ✅ ASP.NET 🏆Blockchain🏆 ✅ Swap, Liquidity, Staking, Farming, bridge forking Pancakeswap, Uniswap ✅ Solidity, Rust, Sui Move Programming language ✅ Smart Contract, ERC20, BEP20, TRC20 ✅ Web3.js, ethers.js
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Database Management
    Telegram API
    Rust
    Blockchain, NFT & Cryptocurrency
    DeFi
    Python
    Node.js
    web3.js
    Ethers.js
    Tailwind CSS
    React Native
    Vue.js
    React
  • $80 hourly

    • 0.0/5
    • (1 job)
    Hi, I'm Erno, full-stack web developer with 5+ years of experience. My main expertise is JavaScript (frontend in React, backend in Node.js). Recently I have been focussing on building Dapps in on the Ethereum Blockchain with Solidity For Web development: React, ES6+, accessible web design, responsive design For Dapps: Solidity, Truffle, MetaMask, Web3 For backend: NodeJs, Express, PHP
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Ethereum
    Blockchain
    Smart Contract
    Front-End Development
    React
    Blockchain Architecture
    Blockchain Development
    Web Application
    JavaScript
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    The quick brown fox jumps over the lazy dog The quick brown fox jumps over the lazy dog The quick brown fox jumps over the lazy dog
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Videography
    HTML
    Video Editing & Production
    Adobe Illustrator
    Photography
    Adobe Premiere Pro
    Adobe Photoshop
    CSS
    JavaScript
    Project Management
    Jeans
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Hi! I'm a senior blockchain and full stack web developer. I have excellent experience in developing blockchain platforms and web applications. I've done several successful projects of IT companies and e-commerce companies. I have awarded many certifications of IT companies that prove my high-skills. My skills: - Blockchain Smart Contract, NFT minting, Token marketplace Ethereum, Solana, Binance, Cardano, Terra - Backend PHP, Laravel, Codeigniter, Zend, YII, CakePHP Node.js, Python, .NET - Frontend React, AngularJS, Angular,Vue.js, Next.js, web3.js TypeScript, JavaScript, Bootstrap, HTML5, CSS3 Highcharts, Apexchart, AmChart, Chart.js, FlotChart, D3.js, three.js, Ext.js
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Blockchain
    Smart Contract
    web3.js
    Node.js
    React
    TypeScript
    Rust
    Angular
    Vue.js
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    An enthusiastic and challenge-driven developer with 7+ years of experience specializing in full-stack web development. Those years have allowed me to build skills as a full-stack developer, specializing in writing smart contracts for DeFis and dApps as well as full-stack web development through the use of PHP framework and JavaScript frameworks. I'm very passionate about delivering the best technical solutions. Working with me you'll see that what matters most is your success. You could go with cheaper routes, and you can manage things all by yourself, or you can hand it off to me and know that it will get it done hassle-free so you can focus on more important things
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Ethereum
    Blockchain
    Smart Contract
    Ether
    web3.js
    Vue.js
    MongoDB
    React
    ExpressJS
    Angular
    MySQL
    Node.js
    Laravel
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Hi! I'm a Blockchain developer with skills of WEB3 and Smart Contract. I have excellent experience in developing blockchain applications, such as Smart Contract, DApp, DeFi, NFT mint sites and Swap protocols. He worked on several companies' projects using React, Next.js, GraphQL, Node.js, MongoDB, MySQL, etc. I worked on blockchain projects since 2020 on Ethereum, Binance, Polygon and Solana. My Skills: ✅ Ethereum/Solidity/Smart Contracts ✅ Solana/Rust/Candy Machine/Metaplex ✅ NFT/uploading metadata to IPFS(Arweave) ✅ ERC-721/ERC-20/ERC-1155/BEP-20 etc ✅ Dapps/NFT marketplaces/collection websites ✅ ReactJS/Redux/React-hook/Next.js ✅ JavaScript/TypeScript ✅ Vue/Vuex/Angular ✅ PHP(Laravel, CodeIgniter) ✅ PostgreSQL/Mongo/MySQL Database/GraphQl ✅ CSSFramework like Bootstrap, Material UI, TailwindCSS ✅ Express/NodeJS ✅ Backend Rest API
    vsuc_fltilesrefresh_TrophyIcon Solidity
    Binance Coin
    Ethereum
    Cryptocurrency
    Blockchain
    Smart Contract
    Angular
    Vue.js
    Rust
    React
    Node.js
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