Hire the best web3.js Freelancers in the Netherlands

Check out web3.js Freelancers in the Netherlands with the skills you need for your next job.

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$150 hourly
Karim G.
- 5.0/5
- (51 jobs)
My work has helped generate over $100 million in on-chain value across more than 50 projects. I’m Karim, a blockchain expert based in the Netherlands. I help people build real crypto products that are fast, secure, and ready for the market. ★ RESULTS - Helped clients raise $25M from NFT launches - Launched multiple tokens that hit $50M+ in market cap - Created DeFi solutions with 7-figure total value locked ★ WHAT I DO BEST - DeFi Systems I build DEXs, CEX tools, lending platforms, staking systems, token launchpads, and L2 integrations customized to your protocol’s goals. - Full dApps & Platforms I build full crypto platforms, wallets, dashboards, staking apps, and Web3 frontends, ready for launch and high-volume use. - Smart Contracts Clean, secure, audit-ready smart contracts for Ethereum, Solana, and EVM chains, built for safety, speed, and scale. - Token Launches From tokenomics to secure deployment, I’ve launched tokens that reached $50M+ market cap and handled full sales, airdrops, and vesting logic. - NFT Projects I deliver NFT marketplaces, mint engines, raffles, GameFi features, and ERC-721/1155 contracts, designed to attract users and generate revenue. ★ HOW I WORK - I start with a strategy call to understand your goals - I map out a clear plan with real results - I build clean, secure code and help launch your product - I stay on to support, scale, and improve it ★ LET’S TALK Have a crypto idea you want to launch? Message me “BOOK” for a free call. I’ll help you shape the idea, plan your next steps, and start building.

web3.js
React
Binance Coin
Solidity
Ethereum
Smart Contract
NFT Minting
Cryptocurrency
Blockchain
Blockchain Development
Blockchain Platform
JavaScript
$95 hourly
Boudewijn J.
- 5.0/5
- (76 jobs)
Experienced web developer specialized in webscripting and large scale e-commerce solutions. Freelance Full Stack Developer for over 20 years of work experience with data scraping, API development, database design and web/command-line scripting. Technical skills: HTML5, PHP7/8, (My)SQL, MongoDB, Python, AJAX, JS, JSON, XML, SOAP, RESTful, OAuth1.0a/OAuth2, SAML, SSO, Shopify Plus, NodeJS, Webhooks, Web3 & Blockchain (web3js/ethers/MetaMask/WalletConnect/NFT & Token gated content), DeFi, dApp, WooCommerce (WooCommerce Blocks), OpenAI / AI (GTP-4/Stable Diffusion/ChatGPT/DALL-E 2/Whisper), Google Cloud, Microsoft Azure, Amazon Cloud AWS, Twitter API, Facebook API/Facebook Marketing API, Instagram API, Google Maps API, CSS3, CSS/SVG Sprite optimization, Responsive design, SEO, SEA, CRM connections (like Zoho, UNIT4 Agresso Wholesale AW, Twinfield, Moneybird), Secure Single-Sign-On (like Auth0), payment API (like Stripe, PayPal, Revolut, Chargebee, Multisafepay, Mollie, iDeal), e-Commerce playforms API (like Amazon, Bol.com), physical cash register system to online (Storecontrl, Accountview), content scraping, Packet sniffing & analyzing, webstore systems (custom made and platforms like Shopify, CCVShop, Lightspeed, Webflow, Magento2), (product)feed & stock import, affiliate systems, A/B testing, layout optimization, Big Data, Transactional E-mail/API (like Mailchimp, Mailgun, Sendinblue, Messagebird), Messenging APIs (like Whatsapp, Telegram, Discord, Line.me, Twilio, Sendinblue, OneSignal), Dashboard & Reporting (like Klipfolio, Ongage), 2 factor authentication, custom API design and experience with a lot of other API connections (such as Spotify, Last.fm, Getresponse, Aweber, Bulkfollows, UpViral, Statsperform, ...). Custom WordPress plugin implementations (like WooCommerce/Channable/Gravity Forms/Sensei LMS and homemade plugins), listed & unlisted & private Shopify App development, Shopify liquid theme development and Chromium browser extensions. PDF manipulation (extracting data, overwriting/filling data incl form fields, digital signing, …). Custom Discord bots integrating external APIs, payment systems (Stripe, PayPal, Web3 crypto) and fully custom-built Discord mini-games.

web3.js
Ethereum
RESTful API
OAuth
Plugin Development
Ecommerce Website Development
PHP
API
API Integration
Shopify
MySQL
WooCommerce
API Development
WordPress Plugin
$35 hourly
Artem B.
- 0.0/5
- (0 jobs)
I am a highly skilled Blockchain & Full-Stack Engineer specializing in DeFi, NFTs, Smart Contracts, and Web3 applications. With over 4 years of experience in software development, I have built scalable, secure, and high-performance blockchain solutions for startups and enterprises. 🔹 Blockchain Expertise: ✅ Smart Contracts: Solidity (Ethereum, Binance Smart Chain, Polygon), Rust (Solana) ✅ DeFi Development: Staking, Yield Farming, Tokenomics, Liquidity Pools ✅ NFT Marketplaces: ERC-721, ERC-1155, Metaplex, IPFS, Arweave ✅ Cross-Chain & Bridges: Layer 2, EVM-compatible chains, Wormhole ✅ Security & Audits: Gas optimization, Reentrancy protection, OpenZeppelin 🔹 Full-Stack & Web3 Skills: ✅ Frontend: React, Next.js, TypeScript, Tailwind CSS, Shadcn ✅ Backend: Node.js, Express.js, Firebase, PostgreSQL, MongoDB ✅ Web3 Integration: Ethers.js, Web3.js, Phantom & MetaMask Wallets ✅ CI/CD & DevOps: Docker, AWS, GitHub Actions 🚀 Why Work With Me? ✔️ High-Quality Code: Clean, scalable, and maintainable solutions ✔️ Security-Focused: Prevents exploits like reentrancy, MEV attacks ✔️ Fast Delivery: On-time completion with Agile methodology ✔️ Proactive Communication: Transparent and reliable collaboration 💡 Let's Build the Future of Blockchain! If you need an expert blockchain engineer to develop your DeFi protocol, NFT project, or Web3 app, let's discuss how I can help. Contact me today! 🚀

web3.js
DeFi
Smart Contract
Rust
Solidity
Ethereum
Node.js
React
DApp Development
ERC-20
Cryptocurrency
NFT
Blockchain
$50 hourly
Remon V.
- 5.0/5
- (2 jobs)
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

web3.js
Database Management
Telegram API
Rust
Solidity
Blockchain, NFT & Cryptocurrency
DeFi
Ethers.js
Tailwind CSS
Vue.js
Python
Node.js
React Native
React
$40 hourly
Victor M.
- 0.0/5
- (0 jobs)
I always welcome entrepreneurs & innovators to partner up with my highly experienced skills&stacks to implement your ideas into reality. Whether you need a website, coin or apps developed or even Digital Marketing campaigns executed, I am at your disposal. My best practices include considering all options available towards getting your idea live. I leave no stone unturned to deliver nothing less than the best! My Services: - Web2: React.js, Angular, Vue.js, Ember.js, Meteor.jsJavascript, Python, Ruby, Html, CSS, PHP, SQL, NoSql CouchDb, Node.js, Express.js, Django, Flask, RubyOnRails, Next.js, Nuxt.js, Nest.js, Laravel, Magento, Wordpress, Drupal, TypeScript, Coffee Script - Web3: Web3.js, Ethers.js, [login to view URL] - Blockchain: Bitcoin, Ethereum, Geth, MEV-Geth, FlashBots, Arbitrage/Liquidation Bots, Parity, Ethereum 2.0, Polkadot, Truffle, Waffle, Solidity, ERC(BEP)20/721/1155, Stable Coin, Binance, UniSwap(SushiSwap), Staking Pool, Mining Pool, Dapp

web3.js
Blockchain
Solidity
Unity
React
Node.js
C#
Vue.js
Python
ASP
$50 hourly
Joe R.
- 0.0/5
- (0 jobs)
I am a Mobile and Blockchain Developer who will be happy to complete any of your projects at the high level, I have a lot of experience and skills that will help me do your job efficiently in a short time. I am always doing my work with my creativity and with my long time professional experience. My Skill Lists are the following: * Javascript(React hook, Redux, TypeScript, Node.js, Vue.js, Angular.js,Next.js, React Native) * Python, Django * PHP Frameworks(CI, Laravel) * JS Frameworks(MERN and MEAN, MEVN) * React Native, Flutter, Java * Wix, WordPress, WooCommerce * Unity * C, C++, C# * Qt * Blockchain, Smart Contract, Web3, Solidity, Golang

web3.js
GraphQL
Flutter
Apollo.io
Ionic Framework
Angular
Vue.js
MongoDB
React
Next.js
Node.js
React Native
TypeScript
Golang
Solidity
$45 hourly
Eric L.
- 0.0/5
- (0 jobs)
Hello. A specialist and a huge enthusiast of the blockchain sector, serving new and old clients with my proficiency in blockchain consultancy and development that can range from a simple token to multiple exchanges and entire blockchain transformation for mid-size businesses to huge corporations. Solutions I can provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Lending, Swapping, Staking, Futures) ✔ Portfolio Tracking Platform ✔ Web/Mobile Wallet ✔ DEFI Exchange Development ✔ Liquidity Mining Protocols ✔ Impermanent loss, governance tokens ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ IEO, STO, Blockchain Research Writing and Whitepapers ✔ Tokenomics ✔ Token Wallet Development ✔ Cryptocurrency games ✔ Custom concurrency development ✔ chain codes ✔ node-setups ✔ Multichain and cosmos development ✔ One-pager 🔸 API Development and Integration: blockchain.info, infura.io, btcpay, node development for custom APIs 🔸 DeFi development: Yearn, Uniswap, Curve, dydx 🔸 Blockchain stack: Web3, Solidity, Infura, Truffle, Remix, ETH, MERN, Python 🔸 Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (3/4) ✔ JavaScript/Typescript, React.js, Node.js ✔ PostgreSQL, MongoDB, Redis ✔ TDD methodology (Unit-testing) Due to the very high-speed improvement of the blockchain sphere, I'm constantly learning and trying out new technologies and solutions. Also, based on my experience I can provide you with a consultation on your project, suggesting the most suitable variants and design the full architecture from scratch or using your materials as a base. Feel free to reach out to me, I'm always open to discussions and glad to help.

web3.js
NFT Marketplace
Truffle
Smart Contract
Solana
NFT Minting
Haskell
Remix
Ethereum
Blockchain
Cryptocurrency
Solidity
DApps
Rust
$40 hourly
Mika M.
- 0.0/5
- (0 jobs)
⭐️⭐️⭐️ Available for both short-term and long-term projects ⭐️⭐️⭐️ 8+ years of extensive experience in software development. Full-time remote since 2020. Skilled at writing well-designed, testable and efficient code using current best practices. 💎 I have done lots of React projects using different React UI libraries (antD, Chakra, Material UI...) 💎 I code reusable, clean, and responsive components using the best coding practices. ►Knowledge: ✅ React(Redux, MobX, Thunk, Saga, Hooks), React Native ✅ Solidity, Web3.js, Smart Contracts ✅ NFT, Stacking & Farming, Uniswap & Pancakeswap, Trading Bot/Sniper bot(FrontRunner) ✅ GraphQL, REST API, ApolloClient, Axios ✅ JavaScript, Typescript ( Preferred ) ✅ HTML / CSS, SCSS, Less ✅ Tailwind, StyledComponents ✅ AWS amplify, Cognito, lambda, S3, RDS.. ✅ Git, Gitflow ✅ Stripe, Stripe connect ✅ UX/UI Design ✅ Node Js, Express ✅ MySQL, MongoDB, PostgresQL I only work with friendly clients, and I like to share my ideas with them. I look forward to hearing from you! Thanks

web3.js
Solidity
ExpressJS
React Bootstrap
Tailwind CSS
MongoDB
GraphQL
PHP
TypeScript
Python
JavaScript
React Native
Swift
React
Node.js
$17 hourly
Keke K.
- 0.0/5
- (0 jobs)
Hey There! I'm Keke. I'm a developer and I can help you take your project to the next level. I have experience with a variety of technologies and I can help you get the most out of your project.

web3.js
Tailwind CSS
Tailwind UI
Blockchain Development
NFT Minting
OpenSea
NFT Marketplace
Ethereum
Blockchain
Solidity
SQL
Laravel
JavaScript
PHP
React
$30 hourly
Remko S.
- 0.0/5
- (0 jobs)
I'm Remko Steen , a professional web&android expert who love building complex and structured project. As a full time freelancer, I have already had almost about 10 years of experience in this field and worked for a variety of remote and local clients, from individuals to businesses. My work style is based on details, quality and responsibility, so I am proud of providing the great results to my clients so far. I can provide services in the next scope of technologies: Frontend: React | Next | Angular | Vue | Nuxt | Svelte Backend: PHP | Node | Express | Laravel | Django | Spring | CI Android: Android | iOS | React Native | Flutter | Hybrid Database: PostgreSQL | MySQL | MongoDB | Oracle | Firebase Blockchain: Ethereum | Bitcoin | Solidity | Web3 API: RESTFul | GraphQL CMS: WordPress | Shopify | Magento Extras: AWS | Heroku | WebRTC | SEO | Scraping Please don't hesitate to contact me if you need my service.

web3.js
React Native
Flutter
Solidity
Hybrid App Development
RESTful API
React
Node.js
Angular
Python
PostgreSQL
ExpressJS
Vue.js
Django
MongoDB
$30 hourly
William S.
- 0.0/5
- (0 jobs)
I am a developer who have 6+ years of experience. I have completed many project with my creative and kind client. I hope to implement my client idea.

web3.js
Shopify
Flutter
Solidity
CSS Framework
Database
Three.js
WordPress
React
Vue.js
Python
C#
Kotlin
Laravel
$25 hourly
Vladislav V.
- 0.0/5
- (0 jobs)
Hi, I’m Vladislav, a Backend Developer and Automation Specialist based in Amsterdam, Netherlands. With a Bachelor of Applied Science in Computer Science from the University of Lisbon, I specialize in building efficient backend solutions, automation tools, and Telegram bots using Python (FastAPI, Django, aiogram). I thrive on solving complex problems, whether it’s optimizing workflows, integrating APIs, or automating processes to save time and boost efficiency. Here’s what I do best: Backend Development & API Integration: I’ve built analytics systems for e-commerce sellers, integrating with APIs (like Wildberries and Binance) to calculate metrics such as revenue, profit, and ad spend ratio, saving clients up to 10 hours per week. I also develop REST APIs using FastAPI and Flask for seamless data management. Automation & Web Scraping: I’ve automated data extraction for small businesses, processing over 5,000 records monthly with 98% accuracy using Python (Selenium, BeautifulSoup). I also optimized workflows for a crypto project by automating the management of 1,000 accounts, improving efficiency by 50%. Telegram Bots: I’ve created Telegram bots to enhance user engagement, such as a bot that checks channel subscriptions and delivers exclusive links, increasing engagement by 30%. I also developed a bot that generates customized social media posts for platforms like Facebook, X, and Instagram, with features for content moderation, editing, and API-integrated posting. Crypto Automation: I designed a fully automated anti-detect crypto farm system to ensure anonymity and security. I implemented proxy logging to monitor and manage network traffic, improving operational efficiency by 20%. I’m passionate about delivering scalable solutions that make a real impact. Whether you need a robust backend, an automation script, or a custom Telegram bot, I’m here to help. Let’s build something great together!

web3.js
International Development
Back-End Development
Browser Automation
C++
Python
TypeScript
Product Development
Ecommerce Website
Ecommerce
Blockchain Architecture
Artificial Intelligence
NFT
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