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25 INR / hourHello, I'm Harsh, an accomplished developer with over 8 years of hands-on experience in crafting dynamic web and app solutions . My journey began in a dynamic IT company where I honed my skills while collaborating on innovative projects. Now, I've embarked on a freelancing adventure to bring my expertise directly to clients like you. ➡️Our Tech-Stack- ➡️Front-end ✅HTML ✅CSS ✅Tailwind Css ✅Material UI ✅Bootstrap ✅JavaScript ✅TypeScript ✅React.js ✅Next.js ✅React Native ✅Redux ➡️Back-end ✅Node.js ✅Express.js ✅Flask ✅Django ➡️Databases ✅MongoDB ✅MySQL ➡️DevOps ✅Linux ✅Git ✅GitHub ✅Docker ✅CI/CD ➡️Cloud Services ✅AWS (EC2, Amplify, S3, Route53, RDS etc.) ✅GCP ✅Digitalocean ✅Hostinger ✅Godaddy ➡️UI/UX Design ✅Figma ✅Adobe XD ➡️Blockchain ✅Solidity ✅Web3.js ✅ Ether.jsHire Web1devloper
25 USD / hourSiliconNexus is a technology solutions provider dedicated to helping businesses succeed in a rapidly changing world. We specialize in the development of sustainable, end-to-end solutions that are tailored to meet the specific needs of our clients. Our team of experienced professionals is committed to providing the highest quality solutions that are secure, scalable, and cost-effective. We stay at the forefront of technology and leverage the latest innovations to create solutions that are reliable and easy to use. ⭐ Services We Offer ✔ Web 2.0 ☑️ UX/UI research & design ☑️ Frontend development: React.js, Vue.js, Typescript ☑️ Backend development: Python (Django), Node.js, ☑️ Mobile app development: Flutter, React Native ✔ Web3.0 & Blockchain Solutions ☑️ Chains - Ethereum, EOS, Solana, Binance, Polygon ☑️ Smart contracts = ERC20, ERC721, ERC721A, ERC1155 ☑️ DeX's - Pancake Swap, Uniswap, Sushi Swap ☑️ DAO - From smart contract development to DAO governance ☑️ dApps - NFT minting buy, sell OR digital assess buy / sell OR Identity management etc. ☑️ Hyper-ledgers - Substrate [custom chain development] ✔ Embedded Systems Development ☑️ Hardware Design - PCB , High Speed, antennas & FPGA's ☑️ Drivers Development - I2C, CAN, USART, PCIe, AXI, DMA, Interrupt Controllers ☑️ Embedded Linux - Yocto , BitBake, ☑️ IOT application development - BLE, LTE 4G, 5G, LoraWAN, Zigbee, WiFi & Wifi6 ☑️ Cloud Integrations - GoogleCloud, Azure, AWS ☑️ Hardware Design & Verification Services - RISCV SoC design & verification ⭐ Our commitment ✅ 100% work quality ✅ Project demonstration & documentation ✅ Active support against any issue (even after deployment) ✅ 15 hours free-of-cost maintenance & support ✅ Free Discovery sessions & project consultation At SiliconNexus, we believe in building long-term partnerships with our clients. Our commitment to customer service and excellence ensures that we exceed our clients’ expectations. We are passionate about helping our clients stay ahead of the competition by providing them with the best technology solutions available. Silicon Nexus Business Development & Consultant Book a Free Consultation CallHire aqibnasim
50 EUR / hourFreelancer software engineer and Information System Engineer with a passion for crafting innovative solutions. With +10 years of experience in the industry, I have developed a strong skill set in mobile app development, blockchain, microservices, unit testing, object-oriented programming, functional programming, web development, and database management. My core skills: * BlockChain: Rust, Solidity, Smart Contracts, Trading Bot. * Mobile development: React Native, Flutter. * Front-end: HTML, CSS, JavaScript, React, jQuery. * Back-end: PHP (Laravel), Node.js, Rest, Kotlin, Solidity, Typescript. * Database: MySQL, PostgreSQL, MongoDB, Redis, Firebase. * Design Patterns, TDD/BDD/Junit/Mocking. * GitHub, GitLab, BitBucket, Jenkins, Docker, Kubernetes. I take a proactive and detail-oriented approach to problem-solving. I enjoy diving into complex challenges and finding elegant solutions. I believe in thorough planning, efficient coding practices, and continuous testing to ensure the highest quality deliverables. I value effective communication and collaboration. I believe in fostering strong client relationships by actively listening to their needs, providing regular project updates, and seeking feedback throughout the development process. I am adept at working independently as well as being a valuable team member when required. If you're looking for a skilled and reliable software engineer to bring your ideas to life, I would be thrilled to discuss your project further. I look forward to the opportunity to work together!Hire logWeb
70 USD / hourHi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack, mobile & emerging tech expert with 10+ years delivering enterprise-grade, high-performance solutions for startups and Fortune 500 companies. 🚀 Core expertise and current tech stack: → Frontend & Web 🌐: React, Next.js (App Router, Server Actions), Angular, TypeScript, Tailwind CSS, Redux Toolkit, React Query, Zustand, shadcn/ui → Mobile 📱: React Native, Flutter, Expo, Firebase — cross-platform iOS/Android apps with native feel; Java (native Android development, legacy support & integrations) → Backend & APIs ⚙️: Node.js (NestJS, Express), Java (Spring Boot, Hibernate, Jakarta EE), C# .NET 8/9, ASP.NET Core, EF Core, SignalR, gRPC; Python (FastAPI, Django, Flask) → CMS & E-commerce 🛒: Shopify (themes, apps, Liquid, API integrations, headless/Headless Commerce), WordPress, WooCommerce, Elementor — custom themes/plugins, secure & optimized sites → Blockchain⛓️: Solidity, Ethereum, Smart Contracts, Web3.js, Ethers.js, Hardhat — dApps, NFTs, DeFi → Automation 🤖: Python (Selenium, Scrapy), RPA, Zapier/n8n/Make.com, custom bots & AI tools → Cloud & DevOps ☁️: AWS (Lambda, ECS/Fargate, RDS, S3, Cognito, CDK), Docker, Terraform, GitHub Actions, CI/CD What I deliver – every project: ✅ Pixel-perfect, responsive web & mobile apps (98–100 Lighthouse scores) ✅ Native-feeling cross-platform mobile solutions (React Native + Flutter) + native Android with Java ✅ Secure, scalable backends (Node.js/NestJS, Java/Spring Boot, .NET/Python) with real-time features, OAuth2, PCI compliance, microservices & enterprise integrations ✅ High-performance Shopify stores (custom themes, private/public apps, Liquid development, API integrations, headless setups) + WordPress/WooCommerce sites & custom plugins ✅ Blockchain dApps, smart contracts & Web3 integrations ✅ Automation bots, scraping, workflows & cost-saving optimizations ✅ Full-cycle development: analysis → architecture → MVP → deployment → support ✅ Smooth legacy migrations to modern stacks (React/Next + mobile + Node.js/Java/.NET/Python + AWS) ✅ Auto-scaling, cost-optimized infrastructure with 99.99%+ uptime My approach: I act as your technical partner — daily updates with live demos, direct access (no middlemen), proactive advice on architecture, performance, security & costs. Code is clean, documented, and built for long-term maintainability & easy handoff. Clients return because I deliver faster, cleaner, more reliably — with zero surprises and maximum value. Ready to launch your project with a verified Preferred Freelancer skilled in web, mobile, Shopify, WordPress, blockchain, automation, cloud & full-stack Node.js/NestJS development? Message me now! I reply fast and can start immediately. Let's create something exceptional! 💼Hire johnnier3
40 USD / hourHello! My Name is Taher. I am a full-time developer and am available 7 days a week, including holidays and weekends. I have a strong background in financial markets, with formal studies in university, and have been developing for financial markets since 2017. Over this time, I’ve successfully created more than 1,000 bots and have been recognized as a top developer by MQL Company. I am proficient in developing on multiple platforms, including: - MT4 - MT5 - CTrader - PineScript - Tradestation - Python - Solidity - BlockChain - Rest API/RESTFull API - FIX API - Telegram API - Binance API - ByBit API - Zerodha/Kite API - and More Here are some of the projects and tasks I've accomplished: - Developed API-based websites and integrated them with EAs, or connected EAs to existing API-based websites. - Incorporated various types of indicators into EAs. - Integrated news filters within EAs. - Managed file operations, including reading/writing CSV/TXT files. - Created signal trading EAs that interact with Telegram or TradingView. - Set up systems to copy trade results to Telegram channels or groups. - Implemented local and remote trade copying over the internet. - Developed EAs based on various strategies such as Price Action, Grid, Hedge, Pyramiding, pairs correlation, and more. - Provided licensing solutions for EAs. - Used graphical objects like Fibonacci retracement in trading strategies. - Designed trade panels and information dashboards. Highlights: Perfect 5-Stars Reviews | 1000+ Projects | On-Time Delivery | MQL Award Winner MQL | CTrader | TradeLocker | DXTrade | Tradovate | Ninja Trader | Pine Script | PythonHire tnt42010
50 USD / hourI design and build production-grade digital systems — from advanced blockchain protocols and DeFi platforms to AI-powered trading tools and scalable web/mobile applications. My expertise sits at the intersection of Blockchain Engineering, AI Automation, and Full-Stack Development, allowing me to deliver complete, real-world products — not just isolated pieces of tech. 🚀 Core Expertise ① Blockchain & DeFi Engineering I build secure, scalable smart contract systems and the platforms around them. Smart Contracts (Solidity / EVM) ERC-20, BEP-20, ERC-721, ERC-1155 token standards Token launches with presales, treasury logic, fee systems Reflection, burn/mint mechanics, advanced tokenomics Vesting, Lockups & Distribution Team, seed, and marketing vesting vaults Airdrop + claim systems Token distribution dashboards Security & Governance Multisig wallets, timelocks, role-based permissions Anti-bot protections, max wallet/tx, cooldowns Whitelists, blacklists, and upgradeable proxy patterns Staking, Rewards & Liquidity Staking/farming vaults and reward engines Presale + claim portals AMM & DEX integrations (Uniswap / PancakeSwap style) Chainlink oracles, subgraphs, and on-chain analytics Chains & Tools Ethereum, BNB Chain, Polygon, Arbitrum, Base Hardhat, Foundry, OpenZeppelin, Ethers.js, Web3.js, Wagmi, Viem, The Graph, IPFS Security Focus Full test suites, fuzz & invariant testing, gas optimization, and audit preparation/fixes. ② AI, Trading & Automation Systems I build intelligent, risk-aware trading and automation tools that operate across crypto and traditional markets. Strategy design & backtesting (Python, EasyLanguage) MetaTrader (MQL4/5) indicators, Expert Advisors, risk modules Exchange & broker API integrations Risk controls: drawdown limits, position sizing, daily loss caps Data pipelines, performance reporting, and monitoring Light ML models for signal filtering, anomaly detection, and optimization Hybrid systems combining on-chain data + CEX/DEX feeds + AI logic ③ Web, Mobile & Backend Development I don’t just build contracts — I build the entire product ecosystem around them. Web Frontend React, Next.js, Vue, Tailwind DApp interfaces, token dashboards, admin panels, investor analytics Mobile Apps React Native & Flutter Wallet views, staking interfaces, notifications, companion crypto apps Backend & APIs Node.js (Express), Python (Django/FastAPI) REST & GraphQL APIs PostgreSQL/MySQL, Redis, job queues, webhooks Infrastructure & DevOps AWS, Firebase, Docker, CI/CD pipelines Monitoring, logging, and security hardening 🎯 What You Actually Get ✔ Audit-ready tokens and DeFi smart contracts ✔ Staking, vesting, and lockup systems with clean user dashboards ✔ Complete crypto platforms: Smart Contracts + Backend + Frontend + Mobile (optional) ✔ AI-powered trading bots with professional risk management ✔ Clean architecture, documented code, and smooth handover to your teamHire freelancerjohnr1
50 USD / hourI am a senior Blockchain, Web3, AI, and Full Stack Software Developer with 13+ years of programming experience and 5+ years working as a full time freelancer. I specialize in building secure, scalable, and production ready decentralized and centralized systems that solve real business problems. My expertise includes blockchain development such as smart contract engineering, DeFi protocols, NFT marketplaces, crypto wallet systems, DEX/CEX exchange platforms, and Web3 application architecture. I have worked with major blockchain ecosystems including Ethereum, Bitcoin, Solana, XRPL, Stellar, Hyperledger, and Corda. I also integrate AI/ML capabilities into applications using algorithms such as Decision Tree, Random Forest, KNN, and Linear Regression, while working with modern generative AI and OpenAI based solutions for practical product development. Over the years, I have built and launched 140+ web and mobile applications with active userbases. My experience includes high performance backend systems, scalable microservices architecture, cloud infrastructure, and DevOps pipelines using AWS, Google Cloud, and Azure. Technical Skills & Technologies Blockchain & Web3 Development > Smart Contract Development (Solidity, Rust) > ERC20, ERC721, ERC1155 Token Standards > DeFi Applications, Staking, Yield Systems > NFT Marketplace Development > DEX / CEX Exchange Platforms > Crypto Wallet Development > Web3 Integration & Blockchain Security Backend & Full Stack Development > Node.js, PHP, Laravel, Django, Flask > React.js, Next.js, Electron.js > RESTful APIs, Microservices, JSON/XML Systems Databases & Storage > PostgreSQL, MySQL, MongoDB, Redis DevOps, Cloud & Infrastructure > AWS, Azure, Google Cloud Platform > Docker, Docker Compose, CI/CD Automation > Server Security & Performance Optimization Automation & Data Engineering > Web Scraping: Selenium, Scrapy, BeautifulSoup > Process Automation and Data Pipelines Platforms & CMS > WordPress, Shopify, and Custom E Commerce Solutions Mobile App Development > React Native Development (React Native, React Native Mobile Applications) > Expo / React Native Expo > Flutter Mobile App Development (Flutter, Dart) > Cross Platform Mobile Applications (iOS & Android) > iOS App Development (Swift, Swift UI) > Android App Development (Java, Kotlin) > Mobile App UI/UX Implementation & API Integration Web & Backend Development > PHP Development (Custom PHP Applications) > Laravel Development (Laravel Web Applications, Laravel REST APIs) > Python Backend Development (Django, Flask, FastAPI) > Full Stack Web Application Development > REST API Development & System Integrations Blockchain Networks I Work With > Bitcoin | Ethereum | Solana | XRPL | Stellar | Hyperledger | Corda I lead a team of experienced engineers capable of building large scale Web3, fintech, and modern software platforms, with a strong focus on research driven development (R&D) to ensure solid architecture, security, and performance.Hire nuprogramer
Pentabay Softwares Inc Pentabay Softwares Inc
35 USD / hour⭐16+ Years⭐Full Stack⭐Webdesign ⭐UI/UX⭐BlockchainCanada35 USD / hourMost Reviewed Companies by The Manifest in the Software Development category. Our team consists of seasoned professionals with a wealth of expertise, offering a diverse range of digital services to elevate your business: ✅ Custom Logo Design to establish a unique brand identity. ✅ Creative Graphics Design to captivate and engage your customers. ✅ Comprehensive Website Design & Development that tells your brand’s story while boosting your global reach. ✅ Mobile App Design & Development bringing your business to your customers’ fingertips. ✅ CRM Development to manage customer relations and streamline your workflow. ✅ SaaS Design & Development for scalable, cloud-based solutions to enhance operational efficiency. ✅ ERP Solutions Design & Development to unify and optimize business processes across departments. ✅ Blockchain Development including decentralized platforms, decentralized applications (dApps), and smart contracts using Ethereum, BNB Smart Chain, Solana, Polygon, and other blockchain technologies. At Pentabay, we understand that a robust online presence is key to business success. That’s why we adopt a holistic approach to all our services, ensuring that your digital presence is fully optimized and resonates with your target audience. Whether it's crafting an eye-catching logo or developing feature-rich, user-friendly websites and mobile applications, we’ve got you covered. Our Promise to You: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Combined Experience in IT services across our team ✅ 1000+ Happy Clients from various industries ✅ 100+ In-House Experts ready to serve your needs ✅ Our clientele spans 42+ Countries ✅ Quick Response Time (Under 2-3 hours) ✅ 5-Star Rated Profile across all platforms ✅ Dedicated Project Managers with fluency in English ✅ Support Availability 5 days a week across EST, PST, MST, and GMT time zones ✅ Physical Presence in the UK, USA, UAE, and Pakistan Let's connect! Start a conversation here on Freelancer.com so we can discuss your project requirements in detail and share our innovative ideas with you. Thanks for visiting our profile!Hire PentabayC
150 USD / hourI architect and deliver secure, enterprise-grade SaaS platforms with a focus on scalability, performance, and GDPR compliance. Over the years, I’ve built systems that enable clients to operate with confidence — because in technology, trust is the glue that holds every partnership together. My work goes beyond writing code. I partner with clients from the discovery phase (understanding requirements, compliance needs, and business objectives) through to system architecture, development, deployment, and long-term support. Each delivery includes structured documentation, CI/CD pipelines, and observability to ensure that systems remain reliable under real-world conditions. My expertise combines Node.js, Redis, PostgreSQL, Docker, and Kubernetes to design infrastructures that are not only performant, but also resilient, auditable, and future-proof. I believe excellence is not a one-time achievement — excellence is a habit, the result of what we consistently do. That mindset drives every line of code, every architecture decision, and every deployment I deliver. Recently, I developed a $6,000+ Internal SaaS Accounting Request Platform for a French client, who rated me 5.0 ⭐️ and described me as their “#1 freelancer in 12 years on this platform.” Beyond the numbers, what matters most is that clients can rely on me to transform complex requirements into sustainable systems — because without data, all we have are opinions. Tech Stack Backend & Languages – Node.js, TypeScript, Fastify, Express.js, WebSocket, REST, AMQP (RabbitMQ), Redis Streams Infrastructure & Databases – PostgreSQL, Redis, Docker, Kubernetes (HPA, Helm, Calico), Systemd, NGINX, PM2 Security & Networking – WireGuard, OpenVPN, FortiVPN, iptables, ip rule, PBR, UFW, Fail2Ban, DNS leak protection, Linux netns (namespaces + veth) Frontend & UX – React.js, HTML5, CSS3 (responsive, modular, i18n-ready) Blockchain & Web3 – Solidity, Web3.js, WalletConnect v2, Chainlink, IPFS, Smart Contracts CI/CD & Observability – GitHub Actions, Prometheus, Grafana, logging pipelines, automated release workflows How I Work Clients trust me because I combine deep technical expertise with disciplined delivery practices. Every project follows a proven cycle: Requirements & architecture design Infrastructure provisioning & automation Secure coding & integration CI/CD pipeline setup with testing & rollback Observability & monitoring (metrics, logging, alerting) Knowledge transfer, documentation, and long-term support Though I work independently, I deliver with the rigor and reliability of a full engineering team. From real-time APIs to Kubernetes clusters, every solution is designed with the principle that responsibility outweighs privilege. As Peter Drucker once said: "Rank does not confer privilege or give power. It imposes responsibility." This principle guides my work — every project, every client, every line of code.Hire samirsauma
Techno Exponent Techno Exponent
15 USD / hourCMMI 5 Company | AI/ML and Data Engineering ExpertIndia15 USD / hour✔️ Techno Exponent (CMMI Level 5 & Level 3 Compliance, ISO/IEC 27001:2022, ISO/IEC 20000-1:2018, ISO 9001:2015 certified) Achievements: • Awarded “STARZ AI/ML Solution Provider of the Year 2024” by Starz Magazine • Awarded “Leading App Development Company 2023” by the Times Group • Awarded “Times Leading IT Company 2022” by the Times Group (Times of India) • Awarded “Leading Customer-Centric IT Company 2022” by the Times Group • Awarded “Fastest Growing Brand 2021-22” by Asia One Forum Year Founded: 2011 * Total Employees: ~450+ Our Office Locations: Kolkata, India | Florida, USA ✔️✔️ Our Expertise: AI, ML, DevOps, Blockchain Backend: Node.js, Java Spring Boot, Python / Django, Laravel / PHP Frontend: React.js, Angular, Vue.js HTML5, CSS3 DB: MySQL, MongoDB, PostgreSQL, MariaDB, CouchDB, SQLite, MSSQL, etc. Android App: Kotlin, Java, Flutter, React Native iOS App: Swift, Flutter, React Native ✔️✔️ Elite Clients: NASA Engineers, Red Bull, Disney, Amazon, HBS, etc. We have served 3000+ clients and 4000+ Projects in the last 14+ years ✔️✔️ Why us • Fluent in Spoken and Written English • Developers with B.E./M.E. in Computer Science from reputed universities • Daily updates and bi-weekly meetings • Proficiency in Agile methodology, GitHub, Bitbucket, AWS, Google Cloud, etc. • NDA & IP security • Flexible across all time zones • 100% transparencyHire TECHNOEXPONENT
