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Bitcoin is the decentralized currency that allows for instant payments globally, that many believe will transform the world.
While the creator of bitcoin remains unknown, there are all sorts of bitcoin architects that help the framework surrounding the digital currency. Speak with one today at Freelancer.com.
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8.2
8.2
100%

Lahore, Pakistan
$50 USD per hour
I've 13+ years of programming experience. 5 years full-time freelance. 140+ web and mobile applications shipped with active userbases. I build secure, scalable, production-ready blockchain and full stack systems that solve real business problems. BLOCKCHAIN & WEB3 > Smart Contract Development in Solidity and Rust covering ERC20, ERC721, and ERC1155 standards. I deliver complete decentralized systems end to end. Smart Contract Engineering and Deployment > DeFi Protocol, Staking, and Yield Farming Development > NFT Marketplace Development with Minting, Trading, and Royalties > DEX and CEX Exchange Platform Development > Crypto Wallet Development, Custodial and Non-Custodial > Web3 Integration, Blockchain Security and Contract Auditing * Networks: Ethereum, Bitcoin, Solana, XRPL, Stellar, Hyperledger, Corda FULL STACK & BACKEND > Node.js, Laravel, Django, Flask, FastAPI, React.js, Next.js, REST API Development, Microservices Architecture, PostgreSQL, MySQL, MongoDB, Redis MOBILE DEVELOPMENT > React Native, Flutter, Swift, Kotlin, iOS and Android, Cross Platform Mobile Apps, Web3 Mobile Wallet Development, Mobile API Integration AI & ML INTEGRATION > OpenAI API Integration, GPT-based Product Development, Generative AI, Decision Tree, Random Forest, KNN, Linear Regression, Recommendation Engines, AI Automation Workflows CLOUD & DEVOPS > AWS, Google Cloud, Azure, Docker, CI/CD Pipelines, Server Security, Performance Optimization, Selenium, Scrapy, BeautifulSoup Data Pipelines I lead a team of engineers delivering large-scale Web3, fintech, and software platforms with a strong focus on architecture, security, and performance. Every project starts with proper planning and ships production-ready. I work with startups and enterprises to deliver Blockchain, Web3, AI, and Full Stack solutions designed for scale, security, and long term growth. Best Regards, KEYWORD INDEX Blockchain Developer, Smart Contract Developer, Solidity Developer, Rust Developer, DeFi Developer, NFT Marketplace Developer, Crypto Wallet Developer, DEX Developer, CEX Developer, Web3 Developer, Ethereum Developer, Solana Developer, Bitcoin Developer, XRPL Developer, Stellar Developer, Hyperledger Developer, Corda Developer, ERC20 Developer, ERC721 Developer, ERC1155 Developer, React Native Developer, Flutter Developer, iOS Developer, Android Developer, Full Stack Developer, Node.js Developer, Laravel Developer, Django Developer, Next.js Developer, React.js Developer, AWS Developer, Docker, PostgreSQL, MongoDB, OpenAI Integration, AI Developer, ML Developer, Microservices Developer, REST API Developer, Mobile App Developer, Fintech Developer, Web3 Mobile Wallet Developer

9.0
9.0
97%

NSR, Pakistan
$30 USD per hour
Hi, I’m Khalid, founder of a senior development team specializing in high-performance web & mobile applications using modern JavaScript technologies. With 15+ years of development experience and a team of expert engineers, we build scalable, secure, and maintainable software that drives business growth. I have completed about 96% Projects successfully. 4% are also completed from our end. They counted incomplete because clients couldn't mark completed and left without feedbacks. If you want to know about my client's views go through their feedbacks from last 8 years or so not just first page. WHY YOU CHOOSE ME? 100% Client Satisfaction 100% Money Back Guarantee. No Advance Payment FLEXIBLE POSSIBLE PAYMENT TERMS: I promise to deliver the project before any PAYMENT is done. I also offer to start the job and show you the progress without project being awarded so if are satisfied with initial progress then you can award officially. Some Wordpress sites I did recently https://culina.au https://vgfoodstory.com Genesis theme http://mecs.nl https://hotelkareldestoute.nl/ http://teleworldsolutions.com/ http://ancillarymedsolutions.com https://www.bnbisrael.com/, Elementor Based sites built https://eurekaprint.com.au https://acm-audio.de/ https://clikdigital.com.au Codigniter websites I did http://paystubsnow.com http://validgrad.com/beta/ http://kryptoshare.com/beta http://playblackjacknow.com/beta/ Laravel projects http://keysender.co.uk/ http://www.pricespectre.com/ https://www.qtyman.com/ http://brouhahasound.com/

9.1
9.1
99%

Karachi, Pakistan
$5 USD per hour
Greetings every one! I am a Top Rated Linux Admin, WordPress, Wix, Shopify, PHP, HTML Developer and Ui/Ux, Figma, Logo Designer. I design neat and clean website experience to our clients, and my designed websites are all Mobile / tablet / Desktop Responsive Websites. My Areas of Expertise: 1. Linux / Cpanel Server Administrator 2. Website Design and Development (WordPress / Shopify / SquareSpace / Wix / Webflow / PHP / Laravel / HTML5) 3. Wordpress / Shopify / Wix theme Customisation 4. Logo / Branding / Graphic Design 5. Mobile App Mockup (Android / IOS) & Wireframes 6. Ecommerce / Woocommerce Website 7. Angular / React JS & SASS I work in EDT(5AM to 8PM) GMT(9PM to 12AM) & AEST(7PM to 10AM)time, Monday to Sunday Benefits of my service: o 100% Customer Satisfaction o Perfect 5 star reviews! o Good communication availability 24/7

8.1
8.1
99%

Lahore, Pakistan
$24 USD per hour
Thank you for visiting my profile! I'm a QuickBooks-certified bookkeeper. My goal is to provide efficient solutions that save you time, reduce errors, and help your business grow. My core expertise includes: ✅ Bookkeeping & Accounting – QuickBooks Online, Xero, Financial Statements, Reporting & Analysis ✅ Excel Solutions – Dashboards, VBA, Macros, Pivot Tables, Data Management & Automation ✅ Document Management – PDF to Office conversions, Editing, Form Creation, Word Formatting ✅ Data Services – Data Entry, Processing, Web Research, Web Scraping ✅ Presentations & Reporting – Professional PowerPoint Presentations, Data Visualization ✅ WordPress – Website Development, Customization, Bug Fixes Why choose me? ✔ 100% Client Satisfaction Focus ✔ Strong Attention to Detail & Accuracy ✔ Flexible with Deadlines and Budgets ✔ Quick Response & Clear Communication Whether your project is small or large, I bring professionalism and reliability to every task. Let’s discuss your needs and how I can add value to your business. Feel free to reach out anytime – I’m available daily and ready to help!

8.8
8.8
100%

Rawalpindi, Pakistan
$29 USD per hour
🌟 About Us We are SkyHawksFusion, a results-driven software development firm passionate about turning your ideas into innovative digital solutions. Whether you’re a startup seeking a cutting-edge app or an established business upgrading your online presence, we deliver products that are fast, secure, and built to the highest quality standards. With a proven track record across web development, blockchain, mobile apps, and SEO, we combine creativity with technical expertise to help your brand stand out and grow. 💻 Our Core Services AI Development Machine Learning Web Application Development Mobile App Development Blockchain Development SaaS Development E-Commerce Development Custom Software Development UI/UX & Graphic Design SEO & Digital Marketing Cloud & DevOps Solutions Cybersecurity Solutions API Development & Integration

10.0
10.0
99%

KARACHI, Pakistan
$45 USD per hour
TAFSOL TECHNOLOGIES Group!! Aiming to deliver $10M+ Projects in 2026–2027 Proud Official Odoo Partner — delivering intelligent, enterprise-grade ERP & CRM solutions for global business excellence. 26th profound member of the OpenJS Foundation, among tech giants like Google, Microsoft, IBM, Uber, and Coinbase. Actively contributing to Official WordPress, the platform powering millions of websites. TAFSOL Technologies is an Award-Winning Digital Agency recognized by Clutch.co and Manifest as: 1. TOP B2B SERVICES by Clutch.co in Mobile App Development 2. MOST REVIEWED COMPANIES by The Manifest in Software Development Our team of skilled professionals has extensive experience in providing a wide range of digital services such as: ✅ AI Development & Integration to transform your business ✅ Mobile App Design and Development ✅ Vibe Coding & AI-Powered Development using Lovable, Claude Code, Bolt.new, Base44, Cursor, and other AI-assisted development tools for Rapid MVPs, SaaS Platforms, Web Apps, Mobile Apps, and Business Automation ✅ CRM Design and Development ✅ SAAS-based platform Design and Development ✅ ERP solutions Design and Development ✅ Website Design and Development ✅ Blockchain and smart contracts Development on Ethereum, BNB Smart Chain, Solana, Polygon, etc. ✅ Logo and Graphics Designing ✅ Linux recovery, database repair, and website rebuilds. Tech Stack We Are Proficient In: Frontend Development Frameworks ✅Reactjs ✅Nextjs ✅Vuejs ✅Angular ✅React Native ✅TypeScript ✅Tailwind CSS ✅Bootstrap ✅Storybookjs Backend Development Frameworks ✅Nodejs ✅Expressjs ✅Nestjs ✅Typescript ✅ASP.net ✅Core PHP ✅PHP Laravel ✅Python ✅Django ✅FastAPI ✅REST APIs ✅GraphQL ✅SOAP APIs Mobile Development ✅React Native ✅Flutter Databases ✅PostgreSQL ✅MongoDB ✅MySQL ✅SQL ✅Redis ✅Supabase ✅Neo4j (Graph Database) ✅Pinecone ✅Weaviate ✅FAISS ✅Chroma ✅pgvector Cloud and DevOps ✅AWS ✅Google Cloud ✅Microsoft Azure ✅Docker ✅Kubernetes ✅CI CD pipelines ✅Nginx AI and Automation ✅OpenAI APIs ✅RAG pipelines ✅Vector databases ✅LangChain ✅AI agents ✅OCR pipelines ✅Computer vision integrations CMS and Ecommerce ✅WordPress ✅Shopify ✅WooCommerce ✅Headless CMS ✅Sanity ✅Strapi Payments and Integrations ✅Stripe ✅PayPal ✅Affirm ✅Twilio ✅SendGrid ✅Google Maps API ✅Zapier What We Offer: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Accumulated Team Experience ✅ 1500+ Satisfied Clients ✅ 140+ In-house Resources ✅ Clients in 55+ Countries ✅ Quick Response Time < 2–3 Hours ✅ 5-Star Rated Profile Across All Platforms ✅ Dedicated Project Managers with Fluent English ✅ Support 5 Days/Week in EST, PST, MST, GMT Let’s start a chat here on Freelancer to discuss your project and share our ideas with you. Thanks for Visiting our Profile!!

7.9
7.9
100%

Karachi, Pakistan
$15 USD per hour
Hi! Looking for a new website, mobile app, or help with an existing project? No worries, I’m here to assist with every step, whether it's web, mobile, or AI solutions. ✨ Want to test working together? → 1–7 day free trial. ✨ Worried about payment security? → Money-back guarantee until milestone completion. ✨ After launch support → 30 days of free post-launch support ✨ Confidentiality required? → Happy to sign an NDA for complete confidentiality Services Offered: ✅ Web Development For new websites or updates, I offer: ✓ WordPress premium themes and plugins ✓ Using Top Builders Elementor | Divi | WpBakery | Fusion ✓ PSD to WordPress or replicating any website into WordPress ✓ 100% mobile responsive design ✓ SEO optimization ✓ User-friendly admin panel ✓ WooCommerce setup and payment gateway integration ✓ Multi-language support and Google Maps integration ✓ Sales reports and affiliate program setup ✓ Full website maintenance and issue fixing ✅ Mobile App Development For businesses needing mobile solutions: ✓ Custom mobile app development using Flutter (iOS & Android) ✓ Integration with existing web solutions or standalone apps ✓ User-friendly, performance-optimized apps ✓ Push notifications, in-app purchases, and social media integration ✓ Support for all screen sizes and devices ✅ Web Applications For those needing more than just a website: ✓ Custom web applications using PHP and Laravel ✓ Dynamic, business-specific web apps ✓ Robust backend systems to handle high traffic ✓ Database integration and management ✓ API development and third-party service integration ✅ AI Chatbots & Automation Looking to add smart features to your site or processes? ✓ Custom AI-powered chatbots for enhanced customer engagement ✓ Chatbots for eCommerce, customer service, or business needs ✓ Integration with websites, web apps. ✓ Full setup and maintenance ✅ Website & System Fixes Facing issues? I specialize in troubleshooting and fixing: ✓ Bug fixes and performance optimization in WordPress, PHP, Laravel ✓ Security fixes, malware removal, and vulnerability patching ✓ AI chatbot issues? I’ll get them working smoothly again! ✓ Mobile app debugging and performance improvements With expertise in WordPress, PHP, Laravel, Flutter, and AI Chatbots, I provide a full suite of solutions tailored to your needs—whether you need a website, web app, or mobile app, I’ve got you covered. Let’s create something great!

6.8
6.8
91%

Rawalpindi, Pakistan
$70 USD per hour
As a Full-Stack Engineer with 15 years of deep industry experience, I don’t just write code—I build scalable, business-driven digital products. My expertise lies in architecting responsive web applications that ensure high availability and low maintenance costs. 🛠 Tech Stack Expertise Backend Mastery: PHP (Laravel, Symfony, CodeIgniter, Zend) and Node.js/Express.js. Frontend Excellence: Expert-level JavaScript/TypeScript using React, Angular, Vue.js, and Next.js. Enterprise CMS: Custom development for WordPress, Drupal, Magento and Joomla. Modern UI/UX: Responsive design via Tailwind CSS and Bootstrap. 📈 Proven Track Record From high-traffic fundraising platforms to complex business-related web apps, I have a proven history of delivering robust solutions on time. I specialize in bridging the gap between complex backend logic and seamless frontend user experiences. Why Choose Me? Strategic Planning: I help bring your vision to life with the most efficient tech stack. Performance Focused: I prioritize speed, security, and scalability. Long-Term Reliability: Code built for low maintenance and high performance. Let’s collaborate to turn your ideas into a competitive advantage. Reach out today to discuss your project!

8.2
8.2
98%

islamabad, Pakistan
$40 USD per hour
Hello Everyone, I am Faisal Manzoor Hussain, professional full stack developer holding experience in website development, desktop development and hybrid application development with proven success. I'm here to help businesses all over the world to grow their online presence through mobile apps and website development services. My target is to help these companies automate their complex business logic. I also hold specialization in developing APIs and integrate almost all sorts of APIs in your application. I also automate business processes to help your business run smoothly. Why should you hire me? Reasons that sound logical in hiring me include ● 99% Completion rate ● Top 3% in Freelancer.com directory ● Lower hourly rate for long term projects ● Life time free bug fixing guarantee Coming to our array of services, I offer my customers with: ● Mobile Responsive Website Design, Development & Optimization. ● Graphics Design & 3D Logo Design & Brand Identity. ● Android App Development (Native & Hybrid) ● Wix Studio, Google Apps Script, SalesForce, Xero, AMP, GSO and Progressive Web Applications Development ● Web Services (JSON, XML, SDK, SOAP, SAML, SSO) ● Website Maintenance (Regular Updates) ● Cloud Formation, JotForm.com, Bubble.io, klaviyo.com Major Web API Integrations are namely- - Google (Maps, Drive, Analytics, My Business, Tag Manager, Gmail) - Payment Gateways (PayPal, Square, Stripe + Connect, PayTM, Skrill, 2Checkout, Paynet, BrainTree). - Shipping Platforms (Fedex, Royal Mail) - SMS Gateway (Twilio, BrainsSMS, Clickatell) - Social (Facebook, Instagram, Twitter, LinkedIn, YouTube, Telegram) - AWS, GCP, Big Data, Big Query, AI, and Data Engineering - HealthCare (Stafferlink, Deputy) - Smoobu, Remote lock, MQTT, Web Sockets, - NFC, RFID, Sensors, Fingerprint, and QR processing, Aurdino, Power BI - Blockchain, Smart Contracts, Ethereum, Binance Smart Chain, NFT, Data Mining - Microcontrollers, PLC, Electronics, Robotics process automation, AI Automation Tools, MVC and CMS that I'm are compatible working with are: 1. OpenAI, Machine Learning, Chat GPT, Tensorflow 2. Codeigniter, Laravel 3. AngularJS 4. Wix 5. Squarespace 6. Shopify 7. Bootstrap, Foundation 8. Intel XDK Android Application Development 9. Ethr.js Solidity
A Bitcoin expert is a specialist who designs, builds, integrates, audits, or advises on Bitcoin-based systems, wallets, payment flows, and on-chain transactions for businesses and individuals. Hiring a Bitcoin expert gives you direct access to deep knowledge of the Bitcoin protocol, the Lightning Network, wallet architecture, custody practices, and transaction analysis — skills that are difficult to source through generalist developers or finance consultants.
Whether you need to integrate Bitcoin payments into a checkout, build a custodial or non-custodial wallet, run on-chain analytics, or set up a secure cold storage policy, a qualified Bitcoin consultant brings the technical and strategic experience to deliver work that is secure, compliant, and production-ready.
Bitcoin specialists handle a wide spectrum of work that spans engineering, security, and advisory. The deliverables depend on the project scope, but most clients hire a Bitcoin developer or consultant for a defined set of outcomes tied to product launches, payment infrastructure, or security reviews.
A capable Bitcoin consultant works across the full stack of Bitcoin tooling. Look for hands-on experience with the protocols and libraries that match your project scope.
Bitcoin freelancers serve a broad set of industries where digital assets, cross-border payments, or self-custody play a meaningful role. Common use cases include fintech startups building Bitcoin-native products, e-commerce stores adding BTC checkout, remittance platforms reducing settlement costs, gaming and content platforms using Lightning for micropayments, exchanges and custodians needing wallet infrastructure, and family offices or corporate treasuries holding Bitcoin reserves. Law firms, forensic accountants, and compliance teams also retain Bitcoin consultants for transaction tracing, expert testimony, and AML investigations.
Bitcoin work is unforgiving — a small mistake in key handling or transaction signing can lead to permanent loss of funds. Vet candidates carefully against the technical depth and security posture your project requires.
Sample interview questions you can use directly:
Freelancer.com gives you access to a global pool of Bitcoin developers, cryptocurrency consultants, and blockchain engineers across every time zone, so you can match your project to a specialist with the exact protocol, language, and industry experience you need. Profiles on Freelancer.com surface verified work history, client reviews, completion rates, and skill tests, making it straightforward to compare candidates on real evidence rather than marketing claims.
Clients set their own budgets and receive competitive bids, with Milestone Payments protecting funds until agreed deliverables are met. Whether you need a one-off Bitcoin payment integration, an ongoing wallet engineering retainer, or a senior advisor for a treasury rollout, you can post a project on Freelancer.com and start receiving proposals from qualified Bitcoin specialists within hours.
Ready to build, audit, or scale your Bitcoin product?
Hiring a Bitcoin specialist is a structured process that rewards a clear brief and disciplined evaluation. Bitcoin work touches funds, keys, and security-sensitive code, so the way you scope and review candidates directly affects the quality of what gets shipped. The three steps below walk you through posting your project, reviewing bids, and awarding the work on Freelancer.com.
Your project post is the single biggest determinant of bid quality. A precise brief filters out generalists and attracts Bitcoin developers whose experience genuinely matches your scope — whether that's a Lightning integration, a multi-sig treasury setup, or a wallet audit. Head to the
Bids are short proposals, not just price quotes. Read them as evidence of how each Bitcoin freelancer interprets your brief, what approach they propose, and whether their suggested timeline is realistic. Strong proposals for Bitcoin work usually reference specific libraries, name protocol versions, raise sensible questions about key management or fee handling, and link to relevant past projects.
The final decision combines proposal quality with the evidence on each freelancer's profile. Weigh consistency across multiple Bitcoin projects rather than a single impressive case, and pay close attention to written client reviews on similar engagements — wallet builds, Lightning work, or security audits.
A Bitcoin expert focuses specifically on the Bitcoin protocol, Lightning Network, UTXO model, and Bitcoin-native standards such as Taproot and PSBTs. A general blockchain developer often works across smart contract platforms like Ethereum and may not have deep experience with Bitcoin's distinct architecture, scripting limitations, or security model.
Yes. Many clients hire Bitcoin consultants for discrete projects such as integrating a payment gateway, auditing a wallet, setting up multi-sig custody, or producing technical documentation. You can scope the engagement tightly, agree on milestones, and close the project once deliverables are accepted.
Timelines vary with scope. A BTCPay Server installation or basic Bitcoin checkout integration can often be completed in a few days, while a custom non-custodial wallet, Lightning service, or full security audit typically runs several weeks to a few months. Share a detailed brief to get realistic timeline estimates from bidders.
For focused engineering work, security reviews, or advisory engagements, an experienced individual freelancer is usually faster and more cost-effective. Agencies make sense only when you need a coordinated multi-disciplinary team across product, design, engineering, and compliance running in parallel.
Many Bitcoin consultants have practical knowledge of KYC/AML obligations, the Travel Rule, and reporting requirements, and can advise on how technical design choices affect compliance. For binding legal opinions, pair the freelancer with a qualified attorney in your jurisdiction.

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