I am a Web3, Blockchain & AI-Automation developer focused on building secure decentralized apps, smart contracts, AI-powered bots, crypto trading automation, DeFi tools, and full-stack web/mobile applications. My experience combines blockchain development, backend architecture, exchange API integrations, AI agents, trading bot logic, and cross-platform app development. I also build Web3/NFT games, Unity games, Telegram & Facebook mini-apps, mobile/web applications, crypto trading bots, and cross-platform products with seamless blockchain, backend, API, and AI integration. Why choose me? Unlike many freelancers who focus only on code, I provide end-to-end development: frontend, backend, smart contracts, API integrations, automation logic, trading bot logic, and user-friendly UX. Here is what I have already implemented: * User registration and Wallet Connect integrations: MetaMask, Ton Connect. * Smart contracts to record votes on-chain. * Smart contracts for reward distribution. * Blockchain-based voting and reward systems. * On-chain oracle integration. * AI-powered features: AI agents, AI bots, automated workflows, and AI-based decision logic. * Crypto trading bots: automated trading systems, futures trading bots, arbitrage bots, long/short execution logic, and exchange API integration. * Multi-exchange monitoring: price tracking, balance monitoring, opportunity detection, and automated trade execution through APIs. * Backend automation: custom trading logic, bot control systems, scheduled tasks, data processing, and real-time monitoring. * Admin Panel & Analytics: full control over users, players, stats, positions, bot activity, and updates. * Leaderboards, referral bonuses, community challenges, and gamified systems. * Multi-chain support: Polygon, BSC, Solana, TON. * Cross-platform development: Web, PC, Android, mobile-first web apps, and custom design.

Full-stack by foundation, AI by conviction. I was building machine learning systems back when it required more math than marketing - 17+ years in software development, 5+ years as a hands-on AI engineer and AI developer. 🇺🇦 I'm a CTO-level AI engineer, machine learning architect, and software architect with a perfectionist's attention to detail. My team of AI engineers, AI developers, data scientists, and web developers delivers full-cycle AI App Development and Web Development - from early MVPs to enterprise platforms. Need an AI chatbot developer, an AI integration specialist, a Python developer for ML pipelines, or a data scientist with real machine learning depth? We've done it - properly. 𝗪𝗵𝗮𝘁 𝘄𝗲 𝗯𝘂𝗶𝗹𝗱 𝗮𝘀 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀: ✅ AI App Development - LLM-powered apps, RAG pipelines, AI bot and AI chatbot solutions ✅ AI Agent Development - autonomous agents and agentic workflows (LangChain, CrewAI) ✅ AI Integration - AI model integration and API integration into your existing systems ✅ AI Chatbot Developer services - intelligent bots, NLP systems, multilingual AI chatbot products ✅ Automation & n8n - n8n workflow orchestration, data scraping, pipeline automation with n8n ✅ Computer Vision - OpenCV, CNN architectures, image recognition and processing systems ✅ Machine Learning & Data Science - model design, training, optimization, production deployment ✅ Web & Back-End Development - React, Node.js, Python, PHP, Java; RESTful & GraphQL API integration ✅ MVP / PoC - custom, low-code, no-code; discovery, UI/UX, QA, project management 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝘂𝘀: As AI developers and AI engineers, we don't just integrate tools - we architect solutions. Whether it's a custom AI chatbot developer engagement, a complex AI integration project, or a full AI App Development cycle, our AI engineer team brings senior-level ownership to every project. Every AI app developer on our team treats your product like their own. From AI integration strategy to deployment - we own it end to end. 🧬 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - Machine learning, deep learning (PyTorch, TensorFlow), Python machine learning systems - Natural Language Processing, computer vision (OpenCV, CNN), RAG pipelines - AI Agent Development, AI App Development, and AI chatbot development for production - Data scientist and data analyst workflows; quant machine learning for FinTech - AI Integration and API integration - robust RESTful / GraphQL API development - n8n automation, cloud infrastructure (AWS, Docker, Kubernetes) Our team includes senior AI engineers and specialists with machine learning PhD backgrounds. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: Python · PyTorch · TensorFlow · Scikit-Learn · LangChain · OpenCV · React · Vue · Angular · Node.js · Java · PHP (Laravel) · ASP.NET · PostgreSQL · MongoDB · ElasticSearch · AWS · Docker · Kubernetes · n8n 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀: FinTech & quant ML · e-Learning · Fantasy sports & gaming · e-Commerce · Media & Entertainment · EcoTech · PropTech · Cybersecurity 𝗧𝗵𝗶𝘀 𝗽𝗿𝗼𝗳𝗶𝗹𝗲 𝗳𝗶𝘁𝘀 𝗶𝗳 𝘆𝗼𝘂'𝗿𝗲 𝗹𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿: AI engineer · AI developer · AI chatbot developer · AI integration specialist · API integration specialist · machine learning engineer · data scientist · computer vision engineer · Python developer · web developer · AI agent developer · n8n automation expert · LangChain developer · AI bot developer · OpenAI developer · prompt engineer · agentic AI developer · AI Automation · AI Prompt Engineer · AI Model · ML · LLM · machine learning trading · machine learning time series · airtable integration · ai api integration 👉 Check the portfolio and selected projects below.

I'm an A.I. (Artificial Intelligence) and Blockchain engineer with over 8 years of experience in the IT field. I began my career as a full-stack developer and have become passionate about cutting-edge technologies, assisting businesses in achieving their goals. I'm also well-versed in cybersecurity best practices and cryptography, ensuring the integrity, confidentiality, and protection of systems and data in an increasingly interconnected world, with expertise in full-fledged security solutions. Recently, I've actively participated in numerous AI & Cybersecurity research projects to stay updated on the latest technological advancements and maintain my professional expertise at the highest industry standards. In addition to my core expertise, here are some additional capabilities I can offer: Areas of Expertise: - Data Science - Cybersecurity - Cryptography - Applied Mathematics -Computer Networks -Embedded Systems - Machine Learning - Artificial Intelligence - Computer Vision - Natural Language Processing (NLP) - Convolutional Neural Networks (CNN) - Deep Learning - Neural Networks - Blockchain - Smart contract creation - Web3 - IOT - Cloud Computing Technologies I'm Proficient In: - Python - C / C++ - Kotlin / Java - FPGA/ Verilog - Linux / Ubuntu - PyTorch/Keras/TensorFlow - SQL - Hardhat - Next Js - Three Js - React Js - Ether Js - Apache Airflow - Scikit-learn - Pandas - Docker - Cloud Environments - Git/Github/Gitlab Please feel free to reach out if you'd like to explore AI concepts further. I'm confident I can provide valuable and innovative insights for your projects.

Full-Stack & Mobile Engineer (React, Next.js, Node.js, React Native, n8n, Supabase) ▪ 10 years I help startups and growing companies build high-quality web apps, mobile apps, and backend systems using React, Next.js, Node.js, React Native, TypeScript, Supabase, and PostgreSQL. I turn messy codebases and unfinished features into clean, fast, stable applications — web, mobile, and backend. I build MVPs in weeks, automate workflows with n8n, and ship production-ready releases at a predictable pace. My work has supported teams at Google, MIT, FedEx, and IPG Photonics (LightWeld used in SpaceX supply chain). Why me: 🏅 Top Rated Plus ▪ 100% Job Success ▪ $700k+ earned 10 years of hands-on full-stack, mobile, and backend development Shipped 70+ products across FinTech, HealthTech, SaaS, and marketplaces Built systems used inside Google, MIT, and FedEx Developed industrial software for IPG/LightWeld powering SpaceX-grade manufacturing Led engineering for a fintech mobile app with 250k+ monthly active users YC startup I worked with raised $1.6M after MVP What I deliver: • Full-stack development: React, Next.js, TypeScript, Node.js • Mobile app development: React Native for iOS & Android • Backend development: Supabase, PostgreSQL, Firebase, custom APIs • API integrations: Stripe, HubSpot, Slack, REST, GraphQL • Automation: n8n workflows (onboarding, CRM sync, internal tools) • MVP development in 4–8 weeks • Codebase rescue, refactoring, performance improvements • Long-term weekly development & product support Toolbox: React ▪ Next.js ▪ React Native ▪ Node.js ▪ TypeScript ▪ Supabase ▪ PostgreSQL Firebase ▪ Redis ▪ Swift ▪ Kotlin ▪ Docker ▪ AWS ▪ Vercel ▪ CI/CD ▪ n8n Automations You get someone who can architect, build, integrate, and actually finish things — not just write fragments of code. If you need a reliable full-stack or mobile engineer who delivers clean engineering and fast execution — let’s talk.

Full-Stack Developer | Java Spring Boot • TypeScript • React With 8 years of professional development experience, I build robust, scalable applications that solve real business problems. I specialize in modern full-stack development, delivering clean code and reliable solutions. Technical Expertise: • Backend: Java, Spring Boot, RESTful APIs, microservices architecture • Frontend: React, TypeScript, responsive UI development • Database: SQL/NoSQL design and optimization • DevOps: CI/CD pipelines, cloud deployment, containerization What I Deliver: Clean, maintainable code that follows best practices and industry standards. Whether you need a complete application built from scratch, legacy system modernization, or specific feature development, I bring technical excellence and problem-solving skills to every project. My Approach: I focus on understanding your business requirements first, then translating them into efficient technical solutions. Clear communication, thorough testing, and meeting deadlines are non-negotiable in my workflow. Available for both short-term projects and long-term collaborations. Let's discuss how I can contribute to your project's success.

I help founders fix, launch, and migrate Lovable, Base44, and Replit apps into production-ready SaaS products using React, Next.js, Supabase, APIs, auth, Stripe, and AI integrations. If you built an app with Lovable, Base44, Replit, Bolt, or another AI app builder and now need a real developer to fix bugs, clean up the code, connect APIs, improve performance, or move it into production, I can help. Most clients come to me when their AI-generated app is “almost working” but stuck with issues like broken authentication, database errors, messy code, failed deployments, Stripe problems, API bugs, or features that need custom development beyond what no-code/AI tools can handle. I specialize in: • Lovable, Base44, Replit, Bolt, and AI-generated app fixes • React, Next.js, JavaScript, TypeScript, and full-stack web apps • Supabase database, authentication, RLS, and backend setup • API integrations, OpenAI/AI features, automation, and workflows • Stripe payments, subscriptions, dashboards, and SaaS features • MVP cleanup, app migration, bug fixing, performance, and deployment I focus on turning prototypes into stable, usable products. That means clean fixes, clear communication, and practical solutions that help you launch instead of getting stuck in endless debugging. Whether you need a quick bug fix, a full app audit, a Lovable/Replit/Base44 migration, or ongoing development support, I can jump in and help move your product forward.

I am a backend software developer with over 5 years experience in systems programming. I like to develop scalable applications and take on challenging tasks. My focus is on distributed systems, compilers and databases.

Most backend systems work fine until real users arrive , then APIs slow down, automation breaks under load, and AI integrations that worked in testing fail in production. That's the gap I close. I build backend systems, AI automation pipelines, and cloud infrastructure designed for real-world conditions from day one not patched together after the first failure. Where I typically get involved: AI automation systems replacing manual workflows — n8n, Make com, LangChain, and agent-based pipelines built for production scale Backend architecture using Node.js and Python — API design, scalable systems, and microservices that handle real traffic AI integration into existing products — OpenAI, LLM workflows, AI agents connected cleanly to backend systems DevOps and cloud infrastructure — AWS, Terraform, Docker, CI/CD pipelines built for reliability Data pipelines and web scraping — extraction, processing, and automation at scale using Python and Node.js Full stack delivery when needed — MEAN/MERN stack with clean frontend-backend architecture How I work: Architecture first, no quick fixes. Every system I build is designed to scale, stay maintainable, and not create technical debt that costs more to fix than it would have to build correctly. I've maintained long-term client relationships because the first version doesn't need to be rebuilt six months later. Tech Stack: Node.js | Python | Django | MEAN Stack | MERN Stack n8n | Make com | LangChain | AI Agents | OpenAI API AWS | Terraform | Docker | CI/CD | DevOps PostgreSQL | MySQL | MongoDB | REST APIs | API Integration Data Scraping | Web Crawling | Scalable Data Pipelines LLM Prompt Engineering | AI Implementation | Automated Workflows If you're building something backend or AI-driven and need it to work reliably at scale, let's talk. Regards Sahil Kumar CTO - ChicMic Studios Last Updated - June 12, 2026

👨‍💻4yrs+ Experience A smart contract developer with over 4 years of experience building DeFi and blockchain infrastructure on EVM networks. I specialize in smart contract architecture, protocol integration, and security-focused development. I have experience working with Uniswap V3/V4, account abstraction, staking protocols, and upgradeable contract patterns. I am passionate about building scalable decentralized financial infrastructure.

⭐️ Top Rated Plus - Top 1% of talent on Upwork 🕒 Experienced Software and AI Engineer with MSc from Oxford University ✅ 7+ years of experience ✅ 50+ projects delivered ✅ Excelling in delivering Enterprise scale projects I help companies turn complex ideas into production-ready AI platforms, intelligent agents, and scalable web/mobile systems that grow revenue, reduce costs, and unlock new opportunities. With an MSc from Oxford University and recognition as Top Rated Plus (Top 1%) on Upwork, I combine fractional CTO leadership with hands-on engineering across AI/ML, Generative AI, and full-stack development. My Guarantee: If I set the wrong expectation or fail to deliver as promised, you get a full refund. Your investment is risk-free. 🔹 How I Create Value AI & ML Systems – predictive analytics that improve decision-making, recommendation engines that drive conversions, anomaly detection that cuts fraud and downtime. Generative AI Solutions – RAG pipelines, AI agents, and copilots that save teams hundreds of hours, boost customer satisfaction, and surface insights instantly from data. Full-Stack Development – scalable SaaS platforms, APIs, and mobile apps that become growth engines, enabling clients to reach markets faster and raise funding. Enterprise Delivery – secure, compliant (SOC2, GDPR, HIPAA) systems built to perform at scale with clear metrics: lower latency, higher accuracy, reduced manual effort. 🔹 Tech Stack & Platforms AI/ML: Python • PyTorch • TensorFlow • Keras • Scikit-learn • Hugging Face • MLflow • MLOps Generative AI: GPT-4/Claude/LLaMA • LangChain • LangGraph • LlamaIndex • Pinecone • Weaviate • Qdrant • ChromaDB Full-Stack: React • Next.js • Vue.js • Angular • Node.js • FastAPI • Django • Flask • React Native • Flutter Cloud & DevOps: AWS • GCP • Azure • Docker • Kubernetes • Terraform • CI/CD Recent Client Wins Fundment (FinTech, UK): Scaled backend systems for regulatory compliance and growth → Fundment has since raised £45M+ to expand operations. Clippd (Sports Analytics, UK): Built data pipelines and ML modules powering elite golf analytics → supported a $10M+ VC round and global adoption across professional golf programs. Novai (Biotech, UK): Developed the Darc Stratos AI clinical trial platform → enabled Novai to raise $3.7M+ in pre-seed and seed funding to take their biomarker to market. MarketingCopy AI (Generative SaaS): Built end-to-end GPT-powered SaaS product → helped the founders secure seed investment and onboard early enterprise customers. Pixelogy Network (Digital Securities): Delivered AI-based identity verification & KYC system → transformed investor onboarding for regulated capital raising. Nestlé (Retail Innovation, Global): Built a digital shopping assistant in collaboration with FusePump → scaled e-commerce personalization across markets. 🔹 Why Clients Trust Me ✓ Fractional CTO & hands-on builder — I architect and code ✓ 90+ projects delivered with measurable business outcomes ✓ Top Rated Plus • Expert-Vetted • 100% Job Success ✓ Risk-free engagement: refund guarantee if I don’t deliver what’s promised Beyond technical prowess, I pride myself on honesty and empathy, understanding the challenges businesses face firsthand. Your success is my utmost priority, and I'm eager to learn more about your ventures. Don't hesitate to reach out—I'm here to support and propel your journey to success!