I am a Blockchain & Full-Stack Web3 Engineer with 6+ years of hands-on experience, specializing in smart contract development, smart contract audits, and crypto trading infrastructure. I help startups, protocols, and funds design, secure, and scale production-grade blockchain systems from token economies and smart contracts to market-making, automated trading bots, and full-stack Web3 applications. Core Expertise Smart Contracts Development & Audit (Security-first approach) EVM & SVM ecosystems (Ethereum, L2s, Solana) Token Engineering & Token Economy Deployment DeFi Protocols & DEX Integrations DEX Aggregators & Liquidity Routing Market Making & Liquidity Provision (CEX & DEX) Automated Trading Bots (Hummingbot, Polymarket bots, custom strategies) Volume Bots & Trending Bots Blockchain Indexers & Data Pipelines Dune Analytics Dashboards Full-Stack Web3 Development (React, NestJS, Web3 APIs) Trading & Market Infrastructure Hummingbot strategy development and customization Market-making bots on centralized and decentralized exchanges Arbitrage, liquidity provision, and execution bots Exchange API integrations (CEX & DEX) On-chain and off-chain order book systems DEX aggregators and execution optimization Security & Reliability Smart contract audits and vulnerability analysis Secure protocol architecture and best practices Gas optimization and performance tuning Battle-tested contract deployment and monitoring Advanced Web3 & Product Development Blockchain Mobile App Development Blockchain Game Development Token-Gated Applications Wallet Integrations (EVM & Solana wallets) Biconomy integrations (Fusion, account abstraction & gasless transactions) Nexus Client integrations Dex Aggregators Full-stack decentralized application development AI Agents & Tokenized Systems Deployed AI agent–powered token economies reaching $10M+ market cap AI-driven on-chain agents interacting with smart contracts Autonomous trading and liquidity agents I have extensive experience working and deployments with Layer 2 Ethereum solutions using OP-stack, blockchain indexers, and production-grade DeFi systems, delivering secure, scalable, and battle-tested blockchain solutions. If you’re looking for a reliable Web3 engineer who understands protocol security from 360 degree, real-world trading mechanics, and full-stack product delivery, I’m ready to help bring your project to production.

Currently team lead on several blockchain project, i'm always on the look for new innovative Web3 solution.

I am a Senior Software Engineer with 14+ years of experience in Full-Stack & Mobile Application Development (since 2012) and 9+ years of experience in Blockchain Development (since 2017). I specialize in Blockchain, AI Agent Systems, Full-Stack Web Applications, Mobile Apps, Cloud Infrastructure, and Enterprise Software Development. My focus is on building scalable, secure, and production-ready solutions that solve real business problems. AI & Agent Development * AI Agent Development * Multi-Agent Systems * Agent Workflow Design & Automation * LLM Integration (OpenAI, Anthropic, Gemini, Open Source Models) * RAG (Retrieval-Augmented Generation) * AI Chatbots & Assistants * MCP (Model Context Protocol) * Workflow Automation * Prompt Engineering * Vector Databases * AI-Powered SaaS Platforms Blockchain Expertise * Smart Contracts (Solidity) * DeFi Platforms * NFT Marketplaces * Token Development (ERC20, ERC721, ERC1155, BEP20) * Staking & Yield Farming * Wallet Integration * Cross-Chain Solutions * DEX & CEX Development * Private Blockchain Networks * Enterprise Blockchain Solutions Blockchain Networks * Bitcoin * Ethereum * BNB Smart Chain (BSC) * Polygon (MATIC) * Solana * Stellar * Ripple (XRP) * TRON * EOS * Tezos * Hyperledger Fabric * Corda * Nano * Waves Platform * Private Blockchains Backend Technologies * Node.js * TypeScript * NestJS * Go (Golang) * Python * PHP * REST APIs * GraphQL * Microservices Frontend Technologies * React * Angular * JavaScript * TypeScript * Redux * NextJs * Vue Mobile Development * Flutter * React Native * Android * iOS Programming Languages C++, C, Go, Python, TypeScript, JavaScript, Dart, PHP, Solidity, Shell/Bash. DeFi & Exchange Development * Binance APIs * Uniswap * PancakeSwap * Ethereum Gas Station Network (GSN) * Trading Bots * Liquidity Solutions * Centralized Exchanges (CEX) * Decentralized Exchanges (DEX) Cloud & DevOps * AWS * Google Cloud Platform (GCP) * Docker * Kubernetes * CI/CD * Distributed Systems Databases * PostgreSQL * MySQL * MongoDB * SQLite * Redis * Vector Databases Tools * GitHub * GitLab * Bitbucket I enjoy building long-term partnerships with startups, enterprises, and technology teams. Whether you need an AI-powered application, blockchain platform, mobile app, SaaS product, or scalable backend infrastructure, I can help deliver a high-quality solution from architecture to production deployment.

Hi, I’m Steve, a Top-Rated WordPress Developer, SEO Expert, and SEO Content Writer with 20+ years of experience helping businesses increase traffic, improve rankings, and boost conversions. If you’re looking for someone who understands SEO strategy, WordPress development, and high-converting content writing all in one, you’re in the right place. I don’t just build websites. I build Search Engine Optimized WordPress websites that rank on Google, attract qualified traffic, and convert visitors into paying customers. Here’s what I can do for you: ✅Search Engine Optimization (SEO) Complete, data-driven SEO solutions designed to increase rankings, organic traffic, and revenue. From On-Page SEO, Technical SEO, and Off-Page Link Building to Local SEO, E-Commerce SEO (Shopify & WooCommerce), Etsy SEO, SEO Audits, and Competitor Analysis, I optimize every layer of your website using advanced tools like Ahrefs and Google Search Console to deliver measurable growth. ✅WordPress Development High-performance, SEO-friendly WordPress websites built for speed, scalability, and conversions. I specialize in Custom WordPress Development, Elementor & Divi builds, WooCommerce stores, PSD/Figma to WordPress conversion, Website Migration, Redesign, Speed Optimization, and Core Web Vitals improvements, ensuring your website is fast, secure, and conversion-ready. ✅SEO Content Writing & Copywriting Strategic, keyword-optimized content that ranks on Google and converts visitors into customers. From SEO blog writing and website copy to landing pages, e-commerce product descriptions, and conversion-focused sales copy, I create content backed by research, search intent, and proven content strategy.

I work with Web3 teams who already have systems running but need experienced hands to get them production-ready Most of my engagements start mid-project. A team has contracts deployed, validators running, or backend services in place, but things break as real usage gets closer. I step in to review what exists, identify technical risks, and improve stability so teams can ship with confidence My background is in high-performance systems and blockchain infrastructure. I have built low-latency trading systems and DeFi tooling in Rust, worked on Cosmos SDK app chains, and developed full stack Web3 applications from smart contracts through to frontend Before blockchain, I spent 8 years building backend and infrastructure systems across fintech, energy, and enterprise environments What I typically help with: - Smart contract development and review in Solidity and Rust - Rust-based backend services, DeFi tooling, and on-chain integrations - Cosmos SDK networks, validators, and IBC - Full stack Web3 applications using Go, TypeScript, Next.js, NestJS - Blockchain indexers, automation, and operational tooling - Production ops, deployment, monitoring, and observability Core stack: Rust, Go, Solidity, TypeScript, Python, Cosmos SDK, Ethereum tooling, Next.js, NestJS, Docker, Kubernetes, Prometheus, Grafana If you have a Web3 system that needs a careful technical review before pushing further, I am happy to discuss

After working in 5 startups and 3 Sillicon Valley companies, I have a long history of designing, developing and deploying entire Blockchain and Full Stack solutions to companies of all sizes. I'm proficient with web3, front end and back end development. Another advantage that I have are my communication skills: I'm good at listening to the client, understanding the requirements and delivering effective and efficient solutions with aggressive deadlines. I have developed multiple projects with great client satisfaction. Some examples include: - NFT Marketplace with tokens reedemable for physical assets (Solidity) - NFT minter for videogame startup (Solidity) - Backend for NFT minting site (Javascript/Typescript) - Taxable ERC20 Token (Solidity) - ERC20 Token on Pancakeswap for a Virtual Reality startup (Solidity) - NFT Smart Contract Audit (Solidity) We can meet for a demo, I can show you the above examples and more. I have extensive experience with Solidity, Hardhat, Python Flask, Python Django, React, React Native, Angular, Ionic, TypeScript, JS and JS frameworks/libraries in general. I'm confident my skills will be very valuable to your project. I understand that you are on a tight schedule. I'd like to follow up ASAP to maximize available time. Please let me know when you're available so we can discuss this in depth. Cheers!

Hey there, hope you are doing great. 👋 I am Saurabh Lodha and I would love to help you build your idea. Thought of trying a POC? - Reach out to me and with my customized template repositories, we can quickly put together an MVP. Have an idea and want to build and scale it to something big? - I have more than 4 years of professional development experience and have completed and contributed to some amazing projects along the way so I would love to work with you. Ever stuck in the hell of debugging or fixing something? - Reach out to me, I will always love to take a look and help you out. Want to get a consultation before building? - I have a great domain experience in Blockchain and Backend development and keep myself updated with the latest in the domain. EIPs, ERC20s, NFTs, Defi and Lending protocols, Layer2, etc. - I would be able to give you a great opinion on what you might want to try and also be able to build you an architecture for your product or a POC. - Besides having a solid understanding of the technical side of things, I love to contribute amazing ideas and always consider giving everything to the team and to the product so you could start something amazing with me onboard. In more details this is what I do to run my house - - I work on designing, developing, and testing smart contracts and have mainnet deployed contracts on multiple EVM chains. - I have a solid career in backend development and can design and develop backend services required for use cases like APIs for Dapps, Arbitrage bots for trading, monorepos, microservices, etc. - I have worked in the Defi space for the last 1.5 years and have designed DEXs, vault contracts, staking pools, and yield-bearing contracts and also contributed towards building on top of some of the biggest projects in this space. (Aave, QuickSwap, Ethalend, Dystopia). - I work on designing and developing subgraphs useful for data indexing. - I also audit Smart Contracts and work extensively on learning about Smart Contract security and vulnerabilities. - I have also developed Lottery Smart contracts, NFT Marketplaces, ERC1155 contracts, ICOs, vesting, and custom ERC20 smart contracts. - I have a good experience of website development and smart contract integration and have completed some cool React projects along the way. Combining all these, I make for a hard-working, innovative, punctual, and easy-to-work-with professional. I have good communication and leadership skills and have good experience working and shipping remotely. Having been in the Crypto space since 2019, I have the correct attitude required to build, excel and contribute in this space and love to work and build with the community. I would love to connect and discuss more, and I am always ready to give an interview about my technical skills and make a good presentation of my communication skills.

Blockchain engineer | Full Stack developer Hello, everybody. My name is Vadym Honcharov. 🥇 5 Years of experience in development. 🥇 4 Years of experience as a Blockchain Engineer. 🏆 Part of the product development team being used by millions of users. 🔥 Specialize in Ethereum, DeFi, Dex, NFT Marketplace, ledger, Smart Contracts, Solana, and XRP. etc 🔥TailwindCSS, Styled Components, Sass/Less, HTML, CSS, JavaScript, and various frontend frameworks ❤️ Passion for Blockchain and Frontend development. As a Blockchain engineer and Full Stack Developer, I excel in blockchain platforms such as Ethereum, DeFi, Dex, NFT MarketPlace, ledger, Smart Contract, Solana, and XRP. My technical expertise also extends to frontend technologies like TailwindCSS, Styled Components, Sass/Less, HTML, CSS, JavaScript, and various frontend frameworks. With a strong foundation in both blockchain and frontend/backend development, I am committed to delivering high-quality solutions that meet the unique needs of clients. I specialize in creating innovative solutions on Solana, Ethereum, and other blockchain platforms, leveraging my deep expertise in smart contracts, tokenomics, and decentralized applications (dApps). My proficiency extends to Solidity and Rust, allowing me to craft secure and efficient ERC20, ERC721, and ERC404 tokens, as well as SPL tokens and the advanced token2022 standard. With a strong foundation in full-stack development, I excel in building robust front-end interfaces using React and Vue.js, while my back-end capabilities are powered by Node.js and MongoDB, all seamlessly integrated through JWT authentication. And my extensive experience includes developing sophisticated bundle-sniping bots and launchpad platforms that enhance the efficiency and security of token launches and trading activities. I am adept at managing and deploying applications on Ubuntu environments, ensuring high availability and performance. As an AI expert, I integrate machine learning models to enhance blockchain analytics and automation, driving smarter, data-driven decision-making processes. ⭐ Services I Offer ✔ Web 2.0 ☑️ UX/UI research & design ☑️ Frontend development: React.js, Vue.js, Typescript , Laravel, JavaScript, HTML, CSS3 ☑️ Backend development: Python (Django), Node.js, PHP, JavaScript ☑️ Mobile app development: Flutter, React Native ✔ TypeScript Framework and Libraries ☑️ React/Redux & React Hooks, Angular, Vue Material UI, Reactstrap, Semantic UI, JSS, Styled Components, TailWind, AntD Redux-Saga & Redux-Thunk, Redux-Form React-Router, React-Helmet, React Charts, D3.js, Immutation Next.js, ✔ 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 ☑️ D Apps - NFT minting buy, sell OR digital assess buy / sell OR Identity management etc ☑️ Hyper-ledgers - Substrate [custom chain development] ☑️ Launchpad with functionality of bundling and sniping based on Solana and Ethereum chain. ⭐ My 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

Senior Software Engineer with a strong foundation in full-stack Web3 engineering, now focused on building AI-native applications, AI agents, and LLM-powered automation systems. My background started with blockchain, DeFi, smart contracts, and full-stack product development, and has evolved into AI architecture, LLM integration, agentic workflows, and intelligent software systems. Experienced in designing and delivering scalable applications using React, Next.js, Node.js, TypeScript, GraphQL, PostgreSQL, Supabase, and cloud-based infrastructure. Strong hands-on experience with Web3 platforms, smart contract integrations, wallet-based applications, DeFi systems, and blockchain data workflows. Currently focused on AI agent development and LLM orchestration, including OpenAI API, Anthropic Claude API, Claude AI, AWS Bedrock, LangChain, MCP, RAG pipelines, prompt engineering, tool-calling agents, workflow automation, and AI-powered backend systems. Skilled at connecting AI models with real business workflows, databases, APIs, blockchain data, and user-facing applications. My recent work includes STXAI, an AI-powered multi-chain token launchpad and trading intelligence platform that combines AI, blockchain analytics, real-time market data, wallet tracking, smart-money monitoring, and full-stack Web development. This project reflects my current direction: combining AI agents, LLMs, Web3 infrastructure, and scalable software architecture into practical products. I bring both technical depth and product-level thinking, with the ability to architect systems, guide engineering decisions, integrate modern AI tools, and deliver production-ready software. I’m especially interested in projects involving AI agents, LLM applications, workflow automation, AWS Bedrock, Anthropic Claude, OpenAI, MCP, Supabase, and blockchain-enabled intelligence platforms.

👋 Hello! I'm Sundus Khalid and I am a Full Stack Blockchain Developer. I have solid skills in blockchain technologies, frontend and backend development to tackle your project from start to finish all while ensuring security and quality. My Tech Stack: - Blockchain: Ethereum, BSC chain, Solana - Smart Contracts: Solidity, Remix, ether.js, web3.js - Backend: NodeJS, FastAPI, Django, Laravel - Databases: MongoDB, MySQL, Postgres, Redis - Frontend: React, HTML, CSS, Javascript - Languages: Solidity, Python, JavaScript, PHP - Others: Firebase, Nginx, Git, AWS, GCP, Docker, Geth, Prysm Here’s what I can do for you: - Set up custom private blockchain networks, customized blockchain explorer, and configure blockchain nodes of your choice. - Create cryptocurrency, crypto tokens, NFTs, Timeshare NFT, Soul Bound NFT and other standard or custom tokens. - Develop secure and custom smart contracts that meet your business logic with best coding practices and security. - Customize any existing open-source Web3 projects to fit your needs like DEX platforms, blockchain networks, crypto wallets, and marketplaces. - Integrate web3 and wallets with your frontend and backend systems. - Deliver end-to-end solutions to meet your unique requirements. Here’s my promise: - Expertise in blockchain technology and smart contract development. - Tailored solutions that align with your business goals. - High standards of security and reliability. - Support to ensure your project's success. Let’s collaborate to turn your idea into reality!