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Hire the best Blockchain Developers in Portugal

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  • $22 hourly
    • 4.7/5
    • (36 jobs)
    "All I need is a sheet of paper and something to write with, and then I can turn the world upside down." These aren't my words, but those of philosopher Friedrich Nietzsche. Writing is my passion, I just love creating engaging and compelling content that actually makes that difference. I would love to turn the world upside down, one word at a time! But let's be honest here... robots might just take over! With the development of artificial intelligence tools, my role as a writer and translator might be played out. Still I'm not worried... Because even the best text created by a machine, will always be missing that human touch. And that's where I come in! For more than 8 years I have been blessed to write and translate from my home in the green heart of Portugal. I have learned so much and my SEO skills are on fire - I have a way of incorporating even the most complex keywords in a natural way. And you know what? It's the love for what I do that really makes a bunch of words into a story, something that you want to read. I also very much believe in a personal approach. Every website, blog or company is different! I make sure that your tone of voice, fundamental values and vision are reflected in all the content I create. What else can I tell you? You might be interested in some of my other passions like traveling, health, food and lifestyle, yoga, spirituality, healing, nature, animal welfare, crochet and gardening. Oh, did I mention that I'm a perfectionist? missing capital letters at the start of a sentence make me shiver - yes, I did that one on purpose. Punctuation can save lives (I'm hungry. Let's eat, John! // I'm hungry. Let's eat John). Two sentences in a row starting with the same word? Are you serious? Communication is important to me and I value building good relationships with clients. Deadlines are there to keep. Trust is important to me. I love working in a dynamic team, but also enjoy freedom in both my creative process and time management. Simply put: I want to create content that people enjoy reading and that create engagement with your target audience. And I want to do it as efficiently as possible, without losing that human touch.
    Featured Skill Blockchain
    Cryptocurrency
    Email Marketing
    Editing & Proofreading
    German to Dutch Translation
    Outreach Email Copywriting
    SEO Writing
    Article Writing
    Spanish to Dutch Translation
    French to Dutch Translation
    English to Dutch Translation
    Elementor
    Copywriting
    Blog Content
    WordPress
  • $75 hourly
    • 5.0/5
    • (3 jobs)
    🙋🏻‍♀️ Copywriter and content strategist with 4 years of experience in web3 and crypto, finance, and tech. ✍️ From planning high-level content strategies to writing the copy, I’ll make sure that your brand message is clear, impactful, and hits home with the right people across all of your marketing channels. 💬 Message me to schedule a free 30-minute Discovery Call 💬 If you’re looking for help with: ✅ Creating a tailored content plan so you're no longer wondering what to post, covering various platforms and marketing channels. ✅ Making the content creation and sharing process more efficient, ensuring it reaches people across the different platforms mentioned above. ✅ Writing compelling copy for the marketing channels mentioned above that attracts, nurtures and converts. ✅ Making sure your website is optimized for search engines (SEO). I’m here for you! 🗣️ "Beatriz is a highly organized and creative writer. Her talent, ease of writing, and consistent adherence to agreed-upon deadlines quickly made her one of our most reliable freelancers. Additionally, her ability to adapt to a brand's tone of voice and writing guidelines highlights her as an excellent partner for any business." Miguel Coelho, Content Manager @ InvoiceXpress (SaaS/Fintech) How can I support you in your business? 👉 Copywriting - Social Media Captions - Landing Page Copy - Email Sequences - Website Copy 👉 Audits - Copy Review - Sales Funnel - SEO Audit 👉 Strategy - Market, Competitor, and Target Audience Research - Blog Content Calendar - Email Marketing 🗣️ "Beatriz is an extremely efficient worker and a fast learner. She quickly took on a variety of challenges and excelled in different forms of writing and content over the course of our time working together. Would recommend to any hirers looking for a proficient copywriter." Christian Williams, Head of Content @ token.com (Web3/Crypto) As an ENFJ-A personality type, I'm someone who takes responsibility and is proactive, dedicated, and self-motivated in my work. You can count on me not just to meet deadlines but to go above and beyond, making sure your content plans succeed, and always looking for new opportunities to make the most out of your content production efforts. 💪 🗣️ "Beatriz is one of the best freelancers I've had the fortune to work with throughout my career. She meets deadlines, is receptive to feedback, and also provides valuable insights/ideas to help with content campaign development. She's also very independent and I'm able to trust her to develop quality content after receiving a standard brief. If you're looking for a writer to help with your company, you should reach out to Beatriz." Charles Costa, Owner @ Helping Fido (Pets) 💬 If you’re thinking “this sounds like someone I want to work with”, then message me to schedule a FREE 30-minute Discovery Call and figure out how we can collaborate! 💬
    Featured Skill Blockchain
    Blockchain, NFT & Cryptocurrency
    Cryptocurrency
    Crypto Marketing
    Web3
    Content Marketing Strategy
    Content Calendar
    Direct Response Copywriting
    SEO Audit
    Content Strategy
    Website Copywriting
    Sales Copywriting
    Email Copywriting
    Copywriting
    Search Engine Optimization
  • $50 hourly
    • 4.9/5
    • (58 jobs)
    🚀 Top-Rated Plus Full-Stack Developer | Blockchain, AI & Scalable Cloud Solutions | 14+ Years Experience | 100% Job Success | End-to-End Development I turn complex ideas into “high-performance digital solutions” - whether it’s a blockchain dApp, AI-driven platform, or enterprise-grade ERP. With 14+ years of experiences and a 100% job success rate, I’ve helped governments and businesses achieve faster, smarter, and more secure operations through cutting-edge technology. 🔍 Why Clients Trust Me: ✅ Top-Rated Plus on Upwork - Recognized for consistent excellence (100% client satisfaction). ✅ Full-Stack Mastery - Frontend: React, Next.js, Angular | Pixel-perfect, responsive UIs - Backend: NestJS, Node.js | Scalable APIs & microservices - Cloud/DevOps: AWS, Azure, GCP, Docker, Kubernetes | Deployment-ready architecture ✅ Blockchain & AI Specialization - dApps & Smart Contracts: Solidity, Ethereum, Solana, Anchor - AI/ML: TensorFlow, LLM integrations, predictive analytics ✅ Database Optimization - SQL: PostgreSQL, MySQL, Oracle, SQL Server (expert in query tuning, stored procedures) - NoSQL: MongoDB, Redis | High-throughput data design ✅ Data-to-Decision Pipeline - Power BI dashboards that uncover actionable business insights. 💡 Recent Impact: - Built a decentralized supply-chain SwapForge dApp (Solana) for token creation, liquidity and swaps make easy with no code required. - Developed an AI-powered ERP that automated 75% of inventory workflows for a Fortune 500 company. - Migrated a legacy Navy platform to Next.js + NestJS, improving load times by 60%. 🛠️ Technical Toolkit: Frontend: React, Next.js, Angular, TypeScript Backend: NestJS, Node.js, GraphQL, REST Cloud/DevOps: AWS (Lambda, EC2, S3), Azure, GCP, Docker, Kubernetes Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis Blockchain: Solidity, Ethereum, Solana, Web3.js, Hardhat AI/ML: TensorFlow, LLM APIs, LangChain BI/Reporting: Power BI, Tableau 📩 Let’s Build the Future Need a secure, scalable, and innovative solution? I’ll align technology with your business goals - on time and beyond expectations. 👉 Message me today for a free 30-minute consultation!
    Featured Skill Blockchain
    AI Consulting
    DApp Development
    NestJS Development
    Next.js
    Front-End Development
    Software Architecture & Design
    Redux Saga
    Angular
    Websockets
    Automated Testing
    Mongoose
    GitHub
    JavaScript
    SQL
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    Solutions Architect and Cybersecurity Consultant with excellent knowledge in the Microsoft platform, having worked since the beginning of the career (more than 30 years of experience) with virtually all Microsoft products. Certificate MCITP, MCPD, MCTS, MCBMSP, MCBMSS, MCSE, MCDBA, MCSD, MCT. C|CT - Certified Cybersecurity Technician, working with Blue and Red Teams and with cybersecurity forensics. Consultant background with .NET and SQL related technologies and products on high transaction applications in small and large enterprise scenarios. Specialties: Excelent experience in development, management, configuration and troubleshooting of IT, involving all Microsoft technologies, especially SQL Server, Azure and .NET
    Featured Skill Blockchain
    RESTful Architecture
    Kubernetes
    Machine Learning
    Functional Programming
    Digital Forensics
    Embedded Application
    Microsoft SQL Server
    Database Development
    .NET Core
    Microsoft Azure
    Internet of Things Solutions Design
    C#
    Database Architecture
    Cloud Architecture
  • $45 hourly
    • 5.0/5
    • (2 jobs)
    With over 4 years of experience in the blockchain industry, I specialize in creating decentralized applications (Dapps), tokens, NFTs, and DAO smart contracts. Collaborating with industry experts, I'm actively working on multiple projects. My dual proficiency in business and blockchain development enables me to offer a distinctive approach to projects. I merge my knowledge of market trends and user requirements with my technical skills to design and execute blockchain solutions effectively. I can assist you with: ⚒ Crafting and rigorously testing smart contracts, ranging from basic to advanced, with a keen focus on security and efficiency. ⚒ Analyzing and optimizing existing blockchain solutions. ⚒ Offering guidance on blockchain strategy, including use case identification and feasibility analysis. ⚒ Implementing security measures and audits to ensure the safety of your smart contracts. ⚒ Monitoring and maintaining your blockchain infrastructure for continuous performance. ⚒ And much more.. Let's work together to turn your blockchain ideas into reality. Whether you're starting a new project or need help with an existing one, my experience and skills are here for you.
    Featured Skill Blockchain
    C++/CLI
    Solidity
    C
    Python
    TypeScript
    JavaScript
  • $45 hourly
    • 5.0/5
    • (2 jobs)
    Hello! I am a dedicated freelancer specializing in the blockchain space with over 5 years of hands-on experience. My passion lies in leveraging blockchain technology to empower others and help them navigate the ever-evolving world of cryptocurrency. Whether you need guidance, development expertise, or strategic insights, I’m here to provide tailored solutions that fit your needs. Let’s collaborate to bring your blockchain or crypto projects to life. Send me a message to get started!
    Featured Skill Blockchain
    Blockchain Security
    Blockchain Platform
    Blockchain Development
    Cryptocurrency
    Smart Contract Development
    Web3
    Marketing
  • $50 hourly
    • 4.6/5
    • (6 jobs)
    👋 Hi there! I'm your go-to Full Stack Developer with a twist of Blockchain, AI, and SEO expertise! 🚀 🔥 I specialize in crafting beautiful, scalable, and high-performing web applications that leave a lasting impression. 💻 ✨ With my deep understanding of Blockchain technology, I can help you build decentralized applications that are secure, transparent, and revolutionize industries. 🌐🔗 🤖 Let's not forget about the power of AI! I can develop intelligent algorithms and machine learning models that bring automation and efficiency to your projects. 🤖⚡ 🔎 And guess what? I'm not just a coding whiz. I have a secret weapon in my arsenal – SEO! I can optimize your websites to climb the search engine rankings and attract organic traffic. 💡🔍 🎉 So, whether you need a stunning web application, a cutting-edge blockchain solution, AI-powered magic, or a boost in search engine visibility, I've got you covered! Let's team up and create something extraordinary! 🎉🚀
    Featured Skill Blockchain
    DeFi
    NFT
    Social Media Marketing
    Ecommerce
    Ecommerce Website Development
    Web Application
    Node.js
    PHP
    Shopify
    React
    WordPress
    Ecommerce Website
  • $40 hourly
    • 5.0/5
    • (1 job)
    I'm Filipe Oliveira, a computer science master's student on a mission to explore the vast realms of technology. With a profound passion for coding and an insatiable curiosity for all things tech-related, I specialize in code development and testing. However, my journey extends beyond lines of code – it delves into the exciting worlds of video games, AI, and emerging technologies. Technical Expertise: Code Crafting: As a coding enthusiast, I bring a creative touch to code development and testing, ensuring functionality meets innovation. Documentation Maestro: Proficient in both English and Portuguese, I wield my writing skills to create comprehensive and user-friendly documentation. I believe that clear communication is the key to unlocking the full potential of any tech venture. Passion Points: Videogame Aficionado: Gaming isn't just a pastime for me; it's a realm of endless inspiration. I bring this passion into my work, infusing creativity and a gamer's perspective into code and projects. AI Explorer: The possibilities of artificial intelligence captivate me. I am dedicated to exploring and applying AI concepts to create solutions that push the boundaries of what's possible. Mission Statement: My mission is simple – to create the best possible tech solutions for businesses. Whether it's through meticulous code development, comprehensive testing, or crafting clear and concise documentation, I strive for excellence in every aspect of my work. Multilingual Advantage: Being fluent in both English and Portuguese, I bridge language gaps and ensure that my work resonates with a diverse audience. Clear communication knows no bounds. Join the Adventure !!! If you're on the lookout for a dynamic and passionate computer science master's student who can transform ideas into reality, let's embark on this tech adventure together. I'm here to create, innovate, and make the digital universe a better place!
    Featured Skill Blockchain
    Machine Learning
    Blog Writing
    Written Comprehension
    Writing Critique
    Computer Engineering
    Presentation Design
    Subtitling
    Game Testing
    AI Content Writing
    Generative AI Prompt
    DJing
    C
    Python
    LaTeX
  • $170 hourly
    • 5.0/5
    • (105 jobs)
    Are you looking for expert legal guidance in Portugal immigration law, international tax planning, or corporate structuring? I help entrepreneurs, investors, and expats navigate visa applications, business formation, and cross-border taxation with tailored legal strategies. As the Founder & Lawyer at MSP Advogado, I specialize in international and national tax law, corporate structuring, and immigration law, ensuring compliance with cross-border regulations while optimizing financial and legal strategies for individuals and businesses. Core Areas of Expertise Tax Law & Compliance – Assisting businesses and individuals with international tax planning, corporate taxation, and tax-efficient structures. Corporate & Business Law – Advising on company formation, contracts, mergers, acquisitions, and regulatory compliance. Immigration & Residency Law – Specializing in D7 Visas, Golden Visas, and residency-by-investment programs for expatriates and investors. Real Estate Law – Providing legal support for property transactions, due diligence, contract negotiation, and real estate investments in Portugal. I work with international clients expanding into Portugal and the EU market, providing strategic business structuring, investment law, and tax advisory services. Why Work With Me? Extensive experience in Portugal’s immigration law (visa programs, residency permits, citizenship) Tailored legal solutions for investors, entrepreneurs, and expatriates In-depth knowledge of international tax law and cross-border business transactions If you are considering relocating to Portugal, expanding your business, or optimizing your tax strategy, let's connect. Contact me today to discuss your legal needs or visit my website for more information. Corporate Law | Tax Law | Immigration Law | Residency by Investment | Business Structuring | Portugal Visa Programs
    Featured Skill Blockchain
    Legal
    Tax Planning & Advisory
    International Taxation
    Corporate Law
    Smart Contract
    Civil Law
    Business Proposal Writing
    Legal Consulting
    Corporate Finance
    Real Estate Law
    Contract Law
    Tax Law
  • $150 hourly
    • 5.0/5
    • (38 jobs)
    Expert Vetted - Top 1% Upwork Freelancers Bringing Your Digital Dreams to Life: Are you in search of a digital alchemist to craft your next spatial computing experience, generative art, or a web app for your startup? As a seasoned creative coder and an Expert Vetted freelancer among Upwork's top 1%, I specialise in transforming abstract ideas into captivating web experiences. My focus lies in crafting interaction-driven designs with meticulous attention to animations and details, ensuring an immersive experience that stands out. Why Choose Me for Your Project: Expertise in Interactive and Animated Design: Whether it's a complex spatial computing experience in WebXR or a generative ai interactive installation, my skill set is tailored for high-impact, dynamic projects. Commitment to Excellence: Partnering with me means collaborating with a freelancer who not only listens closely to your vision but also proactively seeks innovative solutions to craft sleek, goal-oriented digital products. Proven Track Record: With over 15 years in the field, I have successfully delivered projects ranging from NFT collections to intricate interactive experiences for clients including L'Oréal Paris, Ferrari, MTV, and more. My Specialties Include: Web Development (React, Webflow, Squarespace) Generative Art (p5.js, three.js) Animated 3D Interactive Experiences (three.js, , WebXR, WebGL, GSAP, spline) Spatial Computing & NFT Design, Low Poly 3D Modelling, 3D Animation Emerging AI Tools (ChatGPT API, Midjourney, Stable Diffusion) NFT Landing Pages (Whitelisting and Minting) UX | UI Design (Figma, Sketch) Additional Skills: Expertise in THREE.JS, WebGL, WebXR Proficient in JavaScript, Jquery, React, HTML/CSS Get in Touch: Ready to elevate your digital presence? Scroll to the top, click "Invite to Job," and send a brief description of your project. I'm eager to discuss how we can turn your vision into an unforgettable digital reality. ______ AWARDS ✅Webby awards People Choice 2011 - Automotive Category ✅Spike Asia Finalist ✅Webby Awards 2012 Official Honoree ✅Webby Awards 2010 Official Honoree ✅6 FWA SOTD ✅Pubblication on Taschen Web Design Studios 2 ✅Targa Oro per la Pubblicità - interaction design Conferences: ✅Future of Digital - General Assembly / Mashable PRESS ✅Product Hunt ✅Mashable ✅Creativity Online - Naked Espresso ✅Campaign Brief - Peroni Passaggio ✅AmplifyBusiness - The Future of Digital FEATURED BY ✅PSFK ✅Creativity Online ✅Google Creative Sandbox ✅Art Copy and Code ✅SXSW ✅Mumbrella ✅Campaign Brief ✅Arduino blog ✅Hackaday
    Featured Skill Blockchain
    WebGL
    Three.js
    P5.JS
    3D Modeling
    Ethereum
    Solidity
    Digital Art
    Concept Design
    Cryptocurrency
    web3.js
    GUI Design
    Web Development
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I help startups and scale-ups move fast, build right, and win with technology. With 15+ years of experience as a Fractional CTO, Technical Cofounder, and Applied AI Developer, I specialize in turning bold ideas into production-grade platforms — aligning tech with business goals and delivering real, measurable outcomes. From leading cross-functional teams to launching AI copilots and SaaS tools, I bring both strategic oversight and hands-on development to the table. Whether you're raising your first round or shipping your tenth feature, I focus on high-leverage tech execution that accelerates growth. 🧠 What I Do Best: Fractional CTO Services: Technical strategy, product roadmap, architecture leadership AI Product Development: GPT-based assistants, RAG systems, AI copilots, ML pipelines MVP & SaaS Launches: From zero to scalable product (Node.js, Python, FastAPI, React) Scalable Cloud Architecture: AWS/GCP, serverless, Docker, CI/CD Web3 & Fintech Engineering: Smart contracts, tokenomics, DeFi tools Remote Team Building: Hiring, mentoring, and managing global engineering teams Technical Due Diligence: For fundraising, acquisitions, or platform pivots 🛠 Tech Stack & Tools: AI/LLMs: OpenAI (GPT-4/Turbo), LangChain, LangGraph, Hugging Face, Pinecone, Weaviate Languages: Python, TypeScript, Node.js, Golang, Solidity Frameworks: FastAPI, React, CrewAI, Scikit-learn, PyTorch DevOps & Infra: AWS, GCP, Docker, Serverless, Scalable APIs Web3: Ethereum, Solidity, audits, token design ✅ Proven Results: Raised $10M+ for clients by building tech stacks investors trust Shipped AI MVPs in 4–6 weeks for multiple SaaS startups Built GPT-based copilots adopted by 3,000+ users Cut research time by 40% via domain-specific GPT + RAG systems Scaled dev teams from 0 to 20+ while maintaining delivery speed 2.5x growth in qualified leads using AI-driven marketing tools 💼 Who I Work With: - Startup Founders looking for a trusted technical partner - Product Teams needing fast, high-quality AI integration - Investors & Execs seeking CTO-level insight without full-time overhead - Engineering Leaders scaling infrastructure, AI features, or dev teams Let’s talk if you need a hands-on AI builder, a strategic tech lead, or both — to help your product gain traction, scale smart, and stand out.
    Featured Skill Blockchain
    Technical Support
    RESTful Architecture
    AI Development
    FastAPI
    OpenAI API
    Web Development
    AI Chatbot
    AWS CloudFormation
    AWS AppSync
    Smart Contract Development
    Solidity
  • $15 hourly
    • 5.0/5
    • (2 jobs)
    Personal statement As a University of Portsmouth graduate with an honours degree in Criminology and Criminal Justice, with considerable expertise in property management, tourism and remote customer services, I am looking for a relevant position where I could use and develop my professional skills and experience. I have excellent communication skills in three languages. I am fluent in speaking and writing in English and Russian and able to work effectively in multicultural environments. I am highly motivated, confident and adaptable working as part of a team, and can take my own decisions when working independently. My expertise also includes knowledge of the Criminal Justice system in England and Wales as well as working in the fast-paced environment of remote customer services for International Companies. I am a hard worker and fast learner, always ready to expand my knowledge and professional skills in order to achieve excellence in any given role.
    Featured Skill Blockchain
    Online Chat Support
    Cryptocurrency
    Email Support
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I’m a strategic content specialist focused on crypto, blockchain, and Web3 education. With 7+ years in the space and 3 years building content systems professionally, I help brands turn complexity into clarity. My work spans DeFi, blockchain literacy, security, and community-led growth—where I’ve created educational courses, led multi-platform content strategies, and built engagement pipelines that drive real traction. I’ve helped Web3 platforms grow through compelling, data-backed content—launching learning programs, scaling social media, and developing funnels that connect curiosity to conversion. Whether it’s breaking down technical ideas for new users, designing content workflows, or crafting community-first campaigns, I make the world of Web3 more accessible—and actionable—for everyone.
    Featured Skill Blockchain
    Crypto Marketing
    Education
    DeFi
    Web3
    Proofreading
    Copywriting
    Ad Copy
    Writing
    Content Writing
  • $45 hourly
    • 5.0/5
    • (20 jobs)
    🚀 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗠𝗮𝗲𝘀𝘁𝗿𝗼 | 𝗦𝗼𝗹𝗶𝗱𝗶𝘁𝘆 & 𝗘𝗩𝗠 𝗩𝗶𝗿𝘁𝘂𝗼𝘀𝗼 | 𝗗𝗲𝗙𝗶 𝗗𝘆𝗻𝗮𝗺𝗼 🚀 🔗 Are you in search of a blockchain developer with an immense wealth of experience? Look no further! 🌟 Do you know why did the Solidity developer always bring a ladder to work? 🏗️🤔 Because we want to reach those high gas fees! 💸📈 Now seriously 😂 🌐 𝗔𝗯𝗼𝘂𝘁 𝗠𝗲: 🌐 I'm Vitaliy, your go-to blockchain enthusiast with a proven track record in the world of decentralized technologies. With a passion for innovation and a strong background in blockchain development, I am here to transform your ideas into reality. 💡 💡𝗠𝘆 𝗺𝗮𝗶𝗻 𝗦𝘁𝗮𝗰𝗸💡 Armed with a fervent passion for innovation, I'm here to breathe life into your boldest ideas. Whether it's DeFi, NFTs, or the next groundbreaking concept, I'm your partner in turning dreams into blockchain reality. 🎯✨ 👨‍💻 With a strong background in blockchain development, I don't just understand the technology; I speak its language fluently. From smart contracts to consensus algorithms, I've got you covered. 📈💻 𝗧𝗲𝗰𝗵 𝘀𝗸𝗶𝗹𝗹𝘀: Solidity, EVM, Rust, Vyper, Serpent, Web3.js, Truffle, Hardhat, Golang (Go), JavaScript/TypeScript, JSON-RPC, AssemblyScript, Rinkeby (Solidity Fork), Ethers.js, Solhint, Solium (Ethlint), Slither, Mythril, EthGasStation 💡𝗣𝗼𝗿𝘁𝗳𝗼𝗹𝗶𝗼💡 🌟 YOP Finance. The Yield Optimisation Platform (YOP) lets you earn the highest passive income on your crypto across the top blockchains from a clean, simple, and easy-to-use application. 🌟Fasttoken. Fasttoken is the official electronic currency enabling all partners and end-users to settle their business arrangements with any brand under the SoftConstruct parent company using FTN. All in all, over 1,000,000 active and existing users and 700+ partners will be utilizing FTN across 20+ products and enjoying all the benefits of the tokenized economy. 🌟 Backed. Backed is the first insurance protocol for cryptocurrency, allowing private users to conclude an insurance contract executed by a smart contract. This project approaches the concept of insurance from the perspective of decentralism, in order to give the user full control over his policy without any external interference: each BACKED contract is fully customizable, automated and trustless. 🔗 𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 🔗 🧱 Blockchain Extraordinaire: With an extensive background in blockchain technology, I've mastered the intricacies of the field. From Ethereum and Solidity to Rust, I can code in multiple languages, ensuring that your project is always in capable hands. 💻 🪙 DeFi Wizardry: DeFi is my playground! I specialize in creating cutting-edge DeFi solutions such as staking, swaps, cross-chain integrations, and bond protocols. 🚀 🧬 Smart Contract Sorcery: Crafting smart contracts is an art, and I'm a true genius at it. Your project's success depends on the solidity of your smart contracts, and I ensure they're nothing short of perfection. 📜 🛠️ Tech Arsenal: My toolbox is brimming with the latest and greatest tools. I'm proficient in node.js, C++, and Go, and I use them like a maestro conducting a symphony. 🛠️ 🌐 𝗠𝘆 𝗡𝗲𝘁𝘄𝗼𝗿𝗸: 🌐 I thrive in EVM-based ecosystems, Rust-based platforms, and the fascinating world of Move. I have the connections and knowledge to navigate these networks seamlessly, ensuring your project's success across various blockchain environments. 🌐 🚀 𝗟𝗲𝘁'𝘀 𝗕𝘂𝗶𝗹𝗱 𝘁𝗵𝗲 𝗙𝘂𝘁𝘂𝗿𝗲 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿: 🚀 Whether you're launching a groundbreaking DeFi project, creating smart contracts, or exploring the vast possibilities of blockchain technology, I'm your dedicated partner. Let's work together to turn your vision into a reality that shines brightly in the blockchain galaxy! 🌌 💬 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗗𝗶𝘀𝗰𝘂𝘀𝘀 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁? Feel free to reach out, and let's chat about your blockchain dreams and how we can make them a reality. Together, we'll make magic happen! 🪄✨
    Featured Skill Blockchain
    NFT Marketplace
    Cryptocurrency
    OpenLayers
    Solidity
    web3.js
    Cryptography
    Blockchain Architecture
    Smart Contract
    Full-Stack Development
    Three.js
    Rust
    Web Development
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    CTO & Managing Director | IT Consultant | Entrepreneur | Health Tech As a CTO with over 15 years of experience in IT and Managing Director of an innovative IT consultancy, I leverage my extensive background and dual MBAs in IT Services & Administration and Blockchain, Healthtech to drive strategic transformation across various industries. My expertise spans IT Infrastructure, Cloud, Security, and ITSM, with a focus on team management, SaaS development, custom services, and MVP creation. I empower organizations to optimize their technology investments and achieve sustainable growth. In my IT career, I help streamline operations and reduce costs by aligning technology with business objectives, ensuring organizations can leverage effective tech solutions. My firm specializes in IT talent acquisition, providing businesses with top-tier professionals, and offers custom software development to enhance digital capabilities. Driven by a passion for entrepreneurship and technological innovation, I lead a team dedicated to fostering collaboration and excellence, positioning our consultancy as a trusted partner in navigating today’s complex IT landscape. Let’s work together to elevate your business in the digital era!
    Featured Skill Blockchain
    Healthcare Management
    SaaS
    AI Development
    Cloud Architecture
    Solution Architecture
    Product Management
    Team Management
    Recruiting
    Startup Consulting
    Team Building
  • $40 hourly
    • 4.3/5
    • (8 jobs)
    With 10 years of software development experience, my skill set includes expertise in frontend, backend, and devops domains. Throughout my career, I have had the opportunity to work remotely in small and medium teams on a variety of projects. This exposure to diverse responsibilities has allowed me to explore and become proficient in a wide range of technologies, frameworks, and development methodologies. I have thrived in fast-paced and ever-changing startup environments, where adaptability and quick learning are key. After spending 7 years as a fullstack developer, I decided to specialize in backend engineering and have since predominantly utilised the Golang programming language. My passion for blockchain technology has led me to actively participate in multiple projects in this field. Here are some of the technologies and frameworks I have worked with: Backend: - Proficiency in Golang and Node.js. - Leverage of node.js frameworks like Express.js, Nest.js and Koa. - Leverage of Golang frameworks like Gin and Echo. - Undertaken side projects involving Rust and Python. Databases: - Competence in SQL databases such as PostgreSQL and MySQL. - Experience with NoSQL databases like MongoDB. - Familiarity with time series database like TimescaleDB. APIs and Communication: - Proficient in building REST, GRPC, and GraphQL APIs. - Skilled in implementing authentication mechanisms using JWT, OAuth, and session cookies. - Experience working with event-oriented architectures utilising NATS, Kafka, and SQS. Monitoring and Logging: - Utilised Sentry and Prometheus for monitoring applications. - Employed Papertrail for effective logging. Devops: - Proficient in setting up pipelines using GitHub Actions and CircleCI. - Experienced in containerization using Docker and Kubernetes. - Skilled in serverless architecture and setting up Lambda functions. - Proficient in using infrastructure-as-code tools such as CDK and Terraform. - Hold an AWS Solutions Architect Certificate. - Familiarity with multiple cloud providers including AWS, Azure, GCP, and OpenStack, gained through the development of a deployment client tool. Frontend: - Proficiency in HTML, CSS, and JavaScript. - Expertise in frontend frameworks such as React and Angular. - Experienced in server-side rendering using Next.js. - Utilized UI frameworks like Material UI and Bootstrap. - Knowledgeable in optimizing application bundles using webpack. My extensive experience across these domains showcases my adaptability and versatility as a developer. I am confident in my ability to deliver high-quality solutions that meet the requirements of each project I undertake.
    Featured Skill Blockchain
    Linux System Administration
    DevOps
    Agile Software Development
    JavaScript
    Git
    Node.js
    React
    MongoDB
    Docker
    PostgreSQL
    Golang
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I’m a developer with experience in building blockchain websites or mobile apps for medium and large sized businesses.
    Featured Skill Blockchain
    Algorand
    C++
    Bitcoin
    Golang
    Rust
    Solidity
    Binance Coin
    Ethereum
    Smart Contract
    Algorithm Development
    Python
    C#
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Hi, my name is Renato Domingues and I am a full-stack developer with 7 years of experience. I have developed blockchain, rect, unity3d projects. Skills:➤ Blockchian/Ethereum/Cryptocurrency - Solidity/Web3.js/React.js - Smart Contract/Uniswap/Dapp/DeFi - Solana ➤ Frontend : React, Vue, React-native, Bootsrap, Jquery, Flutter, Appach conterlser; ➤ Unity3d : C# coding, animation, UI ➤ Backend : Node, PHP ( Laravel ) ➤ Database : MySQL, MongoDB If you work with me, I will never let you down. I work during your normal business hours. I'd love to chat with you about your project.
    Featured Skill Blockchain
    Laravel
    React
    Node.js
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I'm a FULL-STACK Engineer with 7+ years of experience. That's why I concentrate on researching your requirement carefully and fully to meet your needs quickly. I have gone through every detail of your description very carefully and found that I could be the best fit for your needs. I am a pixel-perfect and clear code quality website developer. I have rich experience in React.js, Next.js, Firebase, Firestore, Google Cloud functions, Javascript (ES6), CSS, HTML, WebPack for 7+ years.
    Featured Skill Blockchain
    React Native
    Blockchain Architecture
    Flutter
    Solidity
    Angular
    Vue.js
    Web Application
    Python
    C#
    ASP.NET
    Node.js
    Laravel
    React
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    High quality and the Best service. I am a fullstack (Frontend and Backend) Developer who is passionate in creating fast, consistent, error-free solutions that impress and aid clients in their online needs. I push myself to create high quality work while keeping an eye for the most minute details to ensure a product that won’t fail. I’m skilled in a number of different areas, including (but not limited to): • Node.js, Express.js, NestJS, Koa.Js • React, Next.js, Vue.js, Nuxt.js • Cryptocurrency, C++, Solidity, web3.js, Python • PHP, Laravel, CodeIgniter, cakePHP, JavaScript, jQuery • TypeScript, Socket.io, Git, CSS/Less/Sass/SCSS, HTML5 • Shopify, Shopify Theme, Shopify App Development As you can see, I have a wide variety of abilities that allow me to offer my clients the most complete freelance experience. I can take on short and long term projects, have a nose for finding issues in projects sketches and concepts, and am happy to work with my clients to collaboratively build a product that meets your vision while having the best possible efficiency and speed. If you’re interested, feel free to check out my reviews and ratings, or simply start a conversation! I’m available via Freelancer at any time, and will gladly jump straight into a conversation about my skills and how they translate to your project needs. Thanks for stopping by, and hope to hear from you soon!
    Featured Skill Blockchain
    Blockchain Development
    Bitcoin
    Blockchain Architecture
    Cryptocurrency
    Mobile App Development
    Finance
    Solana
    Solidity
    web3.js
    API Integration
    Rust
    Web Application
    Python
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    Hello World! Super Developer in EVM and Solana here! 5+ years in EVM based project and 2+ years in Solana. As solana grows into an Ethereum killer, I have recently been working as a rust & solana developer for over 2 years, with solid experience in Anchor framework and Solana protocol. My experience in Blockchain space: * React, Vue, Next, Nuxt, Gatsby, Python, Django, Node, Express * Write, deploy and audit smart contracts in Solidity & Rust * Crosschain & Multichain development * Blockchain development * Smart contracts Development * dApps | ICO, DEX, DEFI, Gambling, NFT marketplace, P2E Game * Cryptocurrency Wallet & Exchange platform * Blockchain Support, Maintenance and Consultant
    Featured Skill Blockchain
    Ethereum
    Solidity
    Smart Contract
    web3.js
    Blockchain, NFT & Cryptocurrency
    Blockchain Architecture
    Solana
    Blockchain Security
    Blockchain Development Framework
    React
    TypeScript
    Rust
    Vue.js
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    ⭐WELCOME!!!⭐ Thanks for your interesting. I have solid knowledge in programming and have 8+ years experience. Strong experience in Web/App development, Machine Learning, Blockchain, etc. My goal is to make sure you are satisfied with your project and it’s delivered on time and within your budget. AREAS OF EXPERTISE: ⭐Blockchain, Solidity, Smart Contact Web3 ⭐C/C++/C#/Python/Java/Matlab ⭐Web Development   ✔️MERN, MEVN & MEAN stack,   ✔️HTML/CSS/Javascript, Bootstrap, jQuery, Tailwind CSS, SCSS   ✔️React.js, Redux, React Bootstrap, React Material UI, Redux, Redux-Sega, Nextjs, Semantic UI, React Motion, React Fuse, etc   ✔️Vue, Vuex, Vuetify, BootstrapVue, Buefy, CoreUI Vue, Vue Material, Keen UI,   ✔️D3.js, C3.js, Chart.js, HighCharts, AnyChart, Plotly, Morris charts, etc   ✔️REST API, GraphQL   ✔️Typescript, Node.js, Express.js, Nestjs, Meteor.js, and other JS frameworks.   ✔️PHP, Codeigniter, Laravel, Symphony, CakePHP, Wordpress, Joomla   ✔️Python, Flask, Django, Web2py, Pyramid   ✔️ASP.NET, Swagger, Saaskit, Azure, Agile   ✔️MySQL, MariaDB, MongoDB, PostgreSQL, MSSQL, etc ⭐Image Processing, Image Recognition, ⭐Data science, Data Processing, Web Scraping ⭐OpenGL, Unity3D, Game Development ⭐Algorithm, Mathematics, Machine learning, Deep Learning ⭐⭐⭐DESIGN|ART MASTER⭐⭐⭐ Warm Regards
    Featured Skill Blockchain
    MERN Stack
    Ethereum
    NFT
    Solidity
    Smart Contract
    DApp Development
    Web3
    Blockchain Architecture
    Solana
    Node.js
    React
    MongoDB
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    I'm a developer specialized in Blockchain Architecture with experience developing and documenting web3 applications. I have acquired a talent for writing educational and informative content explaining technology in a simple way. I've writtent whitepapers, medium articles and educational content like guides and tutorials. Content writing started as a byproduct of my research to implement flavours of ERC-20 tokens, Smart Contract Accounts and Automated Market Makers, alongisde frontend and backend structure to power entire applications.
    Featured Skill Blockchain
    Quality Assurance
    Testing
    Software Documentation
    Technical Support
    Technical Writing
    Web3
    JavaScript
    Solidity
    Writing
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    I am a seasoned Fullstack and Blockchain Developer with over a decade of experience in the tech industry. 👨‍💻 I have continuously expanded my expertise through various certifications and professional development courses. 📜 My journey began as a frontend developer, where I honed my skills in HTML, CSS, and JavaScript. 🌐 Over the years, I transitioned into fullstack development, mastering backend technologies such as Node.js, Python, and Ruby on Rails. 🛠️ My proficiency extends to working with databases like MongoDB, MySQL, and PostgreSQL, ensuring seamless integration and efficient data management for web applications. 💾 In recent years, I have embraced the burgeoning field of blockchain technology. 🔗 I have developed smart contracts using Solidity and have experience with various blockchain platforms, including Ethereum and Hyperledger. 📈 My work in decentralized applications (dApps) has been pivotal in creating secure, transparent, and scalable solutions for clients across different industries. 🌍 I am known for my problem-solving abilities and innovative approach to development. 💡 I am passionate about leveraging technology to solve real-world problems and am constantly exploring new tools and frameworks to stay ahead in the rapidly evolving tech landscape. 🚀
    Featured Skill Blockchain
    TypeScript
    Node.js
    Telegram
    Bot
    Trading Automation
    Solidity
    Smart Contract
    Web3
    Solana
    Blockchain Architecture
  • $7 hourly
    • 0.0/5
    • (1 job)
    I am passionate about technology, particularly cryptocurrencies, blockchain, and web3. I find software development and cybersecurity fascinating and aspire to pursue a career combining both. I am eager to explore opportunities in the crypto industry and contribute to the advancement of technology. Let's build together!
    Featured Skill Blockchain
    Software
    Smart Contract
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    𝐇𝐢, 𝐀𝐥𝐞𝐱𝐚𝐧𝐝𝐫𝐞, 𝐇𝐞𝐫𝐞! With 5 years in IT engineering, I'm your go-to person for 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧, 𝐖𝐞𝐛𝟑, 𝐍𝐅𝐓 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞, 𝐃𝐚𝐩𝐩, 𝐚𝐧𝐝 𝐒𝐞𝐫𝐯𝐞𝐫 𝐬𝐞𝐭𝐮𝐩. I'm all about the details, thriving on solving tricky problems with creative solutions. ⦿ Why choose me? Looking for a Solidity developer to develop "𝐆𝐚𝐬-𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐞𝐝" 𝐬𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭𝐬 𝐨𝐫 𝐃𝐚𝐩𝐩𝐬? 𝐍𝐅𝐓 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞 if you want, It will definitely happen Want to create your own 𝐄𝐑𝐂𝟐𝟎 token, 𝐄𝐑𝐂𝟕𝟐𝟏, and 𝐄𝐑𝐂𝟏𝟏𝟓𝟓 𝐍𝐅𝐓 with additional features? Worrying about your thousands of dollars smart contract getting hacked or do you want to prevent vulnerabilities and exploits? Or are you looking for a program/script to interact with the 𝐠𝐢𝐚𝐧𝐭 𝐃𝐄𝐗 𝐩𝐫𝐨𝐭𝐨𝐜𝐨𝐥𝐬? I help my client with unhackable EVM-compatible solidity smart contracts which have no chance of being vulnerable. ⦿ Technologies I Excel In: I offer NFT Marketplace like Decentraland, Gods Unchained, Polkacity, Sorare, and Axie Infinity, NFT Marketplace Development like Zed Run, DeRace, Pegaxy, SuperRare, and DeFiHorse, NFT Gaming Platform like Dungeon Swap and Crypto Kitties, Metaverse NFT Game Development, NFT Metaverse Launched pad development, Crypto Dynasty like NFT game Development, NFT Multiverse Development, NFT Racing Games Development and Blackjack like NFT Game Development Services. ⦿ Technical Skill Set: Here's what I bring to the table: 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: - Solidity - JavaScript (NextJS, ReactJS, NodeJS) - Python 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: - MongoDB - Supabase(PostgreSQL) - MySQL 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐒𝐤𝐢𝐥𝐥𝐬: - Solidity, Rust, Cairo, Anchor, Move for smart contract development - Create Token(ERC20, ERC404, ERC721, BEP20, SPL, Token 2022 etc) - Node.js, Golang for building decentralized applications - Web3.js, Ethers.js, Wagmi, Starknet.js for blockchain integration - Hardhat, Truffle, Remix, Subgraph - 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! MVP Minimum viable product Progressive Web Apps PWA Blockchain Smart Contract NFT Marketplace Ethereum Solidity Cryptocurrency Crypto Trading Web3 Ether.js Javascript React CSS HTML Next.js TypeScript Tailwind CSS Web Application Front-end Development Frontend Front end Redux Web Development CSS 3 jQuery Git Landing Page Website API Integration GitHub Material UI SaaS API Mongo DB AI App Development AI Development GraphQL Firebase Web App Site UX/UI SaaS Figma Needed Application Expert Product projects B2B Platform Existing Portal Talented Create Dashboard Required Looking New Develop Modern Conversion Build Finance Content Software Screens Brand interactive Android Help Homepage Marketplace High-Fidelity Frontend Medical MVP short longer term Work Research Information Architecture Revamp Supplement Start-Up Monitoring Conversational Integration Review Fintech Need Skills multiple Long-term Commerce App Design Healthcare Sector Seeking Services broad Custom Unique Full Creative Create B2C Lead Innovative Optimization User interface Evolve Concept Upgrade Data Analytics Modernize Minimalist SEO Experienced Travel Innovative Senior Startup Health Generative Team Company Specialist Portals Modernization Refresh Minimalistic Conversion-focused landing page App Interactive Digital Product Mobile UI User Interface Figma Expert Interactive Mockup User-Centered Custom Web Navigation System Expert Mobile App Mobile UI Desktop Application Web Application Experience Figma App iPhone Android Software Responsive Competitive Analysis Interaction Journey Mapping User Experience Strategy Information Architecture Research Documentation User Flow Mobile App Redesign Style Guide Android iOS User-Centered Custom Web Platform ​​SaaS UI Graphics Product Web Application Dashboard Concept Mobile iPad UI Minimum Viable Product Concept User Interface Promo Adaptive User Interface platform design Landing Page Responsive Graphics & Website User Experience Responsive Hire Infographics design Desktop Experienced design Technology & IT Entertainment Business B2B B2C Sport
    Featured Skill Blockchain
    Tailwind CSS
    Supabase
    Next.js
    Ethers.js
    Web3
    Ethereum
    DApps
    Cryptocurrency
    Solidity
    NFT Marketplace
    Smart Contract
    Blockchain, NFT & Cryptocurrency
    Smart Contract Development
    Blockchain Development
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I’m a technology specialist with a proven track record of managing API integrations, cloud migrations, and creating AI-driven solutions to streamline business operations. Whether you need end-to-end project management for your SaaS product, strategic implementation of AI tools, or insights into blockchain and Web3, I can help you optimize workflows and achieve measurable results. I’ve led global teams across APAC, Europe, and Australia, focusing on innovation, efficiency, and aligning technology with core business goals. Key Skills & Services: • Cloud & API Integrations: Microsoft 365, Google, Salesforce, Confluence, ArcESB, Postman, Snowflake • AI & Data Analysis: Implementing AI workflows for automation; proficient in Kibana, Tableau, Azure • Web3 & Blockchain Expertise: Researching and testing blockchain solutions, DeFi, NFTs, DEX • Project Management: Full-cycle delivery, from planning and strategy to execution and optimization • Team Leadership: Experience building and mentoring global, cross-functional teams Why Work With Me? • I prioritize clear, consistent communication and regular updates • I blend hands-on technical skills with entrepreneurial insights • I’m passionate about emerging tech - always staying ahead of trends to bring fresh ideas to your projects Let’s connect and discuss how I can support your next project!
    Featured Skill Blockchain
    Tech & IT
    Technical Support
    Technical Project Management
    Customer Service
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