If you're seeking an organized, collaborative, resourceful, hardworking, and self-motivated expert developer, you're in the right place! With over 5 years of experience in Web Application development, Scripting & Automation, I have a proven track record of successfully handling both short and longer-term projects, making me a great choice for you. My schedule is very flexible, as I often work not only daytime hours but also early morning and late evening. My IT/Development skills: Application development (Python, PHP, JS, jQuery, Ajax) Frameworks (Laravel, Django, Flask) Bot automation (Web scraping, Web automation, Telegram/Discord/Slack/Twitter/Facebook/Insta/Youtube Bots) Trading Strategy code. WordPress site development and customization Server Management - Linux, cPanel, AWS, Windows My Strengths: Organized Collaborative Resourceful Hard worker Self-Motivated I would be glad to help your project succeed!

I'm a Backend Python Developer and CRM Automation Specialist with 6+ years of hands-on experience building scalable APIs, AI-driven workflows, and intelligent integrations — including GoHighLevel (GHL) systems that behave exactly as designed. I specialize in rebuilding misbehaving GHL native AI bots — tightening prompts, locking conversation flows, and setting up clean human hand-off logic so the bot stays on-script every time. My backend work powers end-to-end integrations with Gmail and Google Calendar, with solid timezone normalization for AU-based businesses running across multi-hour offsets. On the backend side, I build with FastAPI, manage secure OAuth2/JWT authentication, design async microservices, and connect systems via RESTful and webhook-based APIs. My AI work includes OpenAI API integrations for smart content classification, email filtering, and automated workflow logic. I work carefully on live systems — staging every change, testing before moving forward, and never touching production without a clear rollout plan and rollback ready.

🟢 100+ successful projects | Top Rated Plus | 10+ years of experience 🟢 I help businesses collect reliable data, automate workflows, integrate APIs, and build AI-powered systems that reduce manual work and turn messy processes into clean, scalable, production-ready solutions. I’m Sergii, Senior Automation & AI Engineer at DataOx. For 10+ years, we’ve helped startups, small businesses, and growing teams build custom data extraction systems, workflow automation tools, API integrations, backend platforms, data pipelines, and practical AI automation solutions. What I can help you with: • Web scraping & data extraction Custom scraping systems for websites, marketplaces, directories, eCommerce platforms, real estate platforms, job boards, online portals, social networks, and other public or structured data sources. • Data processing & data pipelines Cleaning, structuring, normalizing, transforming, and preparing data for reporting, analytics, dashboards, CRMs, databases, Google Sheets, Airtable, internal tools, or AI systems. • Workflow automation & browser automation Automation systems that replace repetitive manual work, connect tools, handle business logic, run scheduled processes, and reduce operational workload over time. • API integration & backend systems REST API integrations, third-party API connections, custom API development, backend logic, database workflows, admin panels, internal platforms, and scalable business systems. • AI automation & AI-powered tools AI agents, ChatGPT / OpenAI API integration, Claude, Gemini, AI-driven workflows, document processing, natural language interfaces, AI-generated reports, classification, extraction, and decision-making support systems. • Existing system improvement Bug fixing, refactoring, stabilization, performance improvements, error handling, documentation, feature enhancements, and long-term support for existing automation, scraping, backend, or AI systems. Typical projects we build: • Web scraping and data extraction platforms • Price monitoring and competitor monitoring tools • Lead generation and contact data collection systems • Workflow automation and process automation tools • API integrations between CRMs, databases, SaaS tools, and internal systems • AI-powered assistants, AI agents, and business automation tools • Document parsing, classification, and reporting systems • Data pipelines, ETL processes, and structured datasets • Dashboards, admin panels, and backend web applications • Google Sheets, Airtable, Telegram bot, and email automation workflows Why clients work with us: • Strong experience with similar projects • Clear understanding of technical requirements and business goals • Reliable communication and structured project delivery • Clean, maintainable, and scalable architecture • Strong problem-solving approach • Ability to handle changing requirements and real-world edge cases • Production-ready solutions with error handling and clear documentation • Long-term support after the first version is delivered Tech stack and tools: Python, Java, FastAPI, Django, Spring Boot, PostgreSQL, MySQL, MongoDB, REST APIs, Selenium, Playwright, Scrapy, BeautifulSoup, Pandas, ETL pipelines, cloud services, OpenAI API, ChatGPT, Claude, Gemini, Google Sheets API, Airtable API, CRM APIs, payment APIs, and custom backend systems. I work best with clients who need more than just a quick script. If you need an experienced developer or technical partner who can understand the goal, clarify the scope, build a reliable solution, and support it over time, I can help. Send me a message with your project details, data sources, tools, API requirements, or current workflow, and I’ll help you define the best technical approach.

I am a Backend and AI Engineer with 5+ years of experience building production-ready backend systems, AI-powered products, Telegram and Discord bots, and real-time automation platforms. I have shipped 30+ production systems serving 5,000+ daily active users across fintech platforms, trading systems, crypto tools, P2P services, membership communities, and moderation systems. Every system I build is engineered to survive edge cases, scale under load, and remain stable long after deployment. 🛠️ What I Build: → AI-Powered Telegram and Discord bots for community management, business workflows, role-based access, automation, and moderation → AI agents and chatbots with LLM integration, RAG pipelines, persistent memory, multi-turn context handling, MCP server integration, and tool calling built with LangChain, CrewAI, and OpenAI/Anthropic APIs → Scalable backend APIs and microservices built with Python (Django | FastAPI), Node.js, and Golang covering REST, WebSockets, and Webhooks for high-performance production systems → Fintech backend systems with wallet management, ledger logic, transaction processing, audit trails, and financial data pipelines → Real-time systems using Redis pub/sub, WebSockets, event-driven architecture, and async task queues for high-throughput workloads → Microservices architecture with Docker containerization, service isolation, and independent scaling for long-term maintainability → Crypto exchange integrations and trading bot development, on-chain wallet events, and real-time market data execution → Database architecture and optimization across PostgreSQL, MongoDB, and Redis designed for high-throughput production workloads → Cloud deployment and infrastructure on AWS including EC2, Lambda, S3, RDS, and API Gateway for production grade systems 🏗️ Engineering Approach: Every system I deliver is tested under real conditions, documented clearly, and handed over in a state you can maintain and scale without calling me back to fix it. If you need someone who understands production-ready backend engineering to build your backend system, AI product, or Telegram bot, send a message and I will get back to you within a few minutes.

I built the system UN IFAD uses to track $300M+ in agricultural supply chain value. It won the 2024 World Future Award. Before that, blockchain infrastructure for the DHS Silicon Valley Innovation Program, and CasperSwap DEX, audited by Quantstamp and Halborn. ⚙️ 𝗔𝗜 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 Most AI and blockchain projects fail at the seam between the two. One developer handles AI, another handles blockchain, and nobody owns where they connect. I own the full architecture. On the AI side, I build RAG pipelines, multi-agent systems using LangGraph and CrewAI, LLM orchestration layers, voice AI, and agentic workflow automation using n8n. I have shipped production systems with LangChain, pgvector, Pinecone, Weaviate, OpenAI, and Anthropic SDK. One of them is an AI-powered legal intake system running on WhatsApp via Meta Cloud API and Twilio Voice, built with Claude and Llama 3.3 70B, handling real client conversations at scale. I also build custom AI chatbots, conversational AI systems, AI calling agents, and AI-powered SaaS platforms for healthcare, legal, and enterprise clients, including EHR/EMR integration and appointment booking automation. 🔗 𝗕𝗟𝗢𝗖𝗞𝗖𝗛𝗔𝗜𝗡 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 On the blockchain side, I write smart contracts in Solidity and Rust, deploy across Ethereum, Solana, XRP Ledger, and Casper, and build on Layer 2 networks and Hyperledger Fabric. I have delivered DeFi protocols, DAO governance frameworks, RWA tokenization platforms, NFT development, crypto wallet development, prediction market platforms, and MEV systems. I work with Foundry, Hardhat, Ethers.js, Wagmi, Slither, and The Graph. My smart contract work has been audited by Quantstamp and Halborn. 🛡️ 𝗖𝗢𝗠𝗣𝗟𝗜𝗔𝗡𝗖𝗘 & 𝗗𝗘𝗣𝗟𝗢𝗬𝗠𝗘𝗡𝗧 I also build AI agents and agentic workflow systems that replace manual business processes, API integrations, prompt engineering pipelines, semantic search, and vector database infrastructure. For teams that need on-premise LLM deployment, I use Ollama. For cloud, I deploy on AWS, GCP, and Azure with Docker and CI/CD pipelines. Frontend work is React, Next.js, and TypeScript with FastAPI and NestJS on the backend. Where I work best is at the intersection of AI automation and blockchain verification, inside compliance frameworks including HIPAA, SOC 2, GDPR, and ZATCA. If AI makes the decision, blockchain proves it happened. That is the kind of system regulated industries actually need. Before any engagement I do one scoping call. I will tell you exactly what to build, what not to build, and why. If blockchain or AI does not belong in your project, I will say so. Message me with two lines about your project. I will tell you within 24 hours whether I can help, and how. 🔑 𝗦𝗞𝗜𝗟𝗟𝗦 & 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 Claude Code, Gemini, Python, Node.js, MCP, Supabase, GitHub Copilot, Cursor, Lovable, Agentic AI, AI Coding Workflow, LLM Integration, Business Process Automation, Telegram Bot Development, Vibe Coding, SaaS Development, Chatbot Development, Production Hardening, Deployment Pipeline, Prototype, AI Operating System, Machine Learning, Layer 2 Development, TON Blockchain, Smart Contract Audit, Blockchain Architect, Web3 Development, MEV Bot, Tokenomics, Testing, AI Full-Stack, AI Systems Architect, Automation Architect, Data Science, Product Engineer, TensorFlow, PyTorch, Scikit-Learn, Cloud Deployment, AI-Generated Code, CV, Real-Time Conversational Systems, Product Development, MVP, AI App Development, Top 1% AI Engineer, Automatic Speech Recognition, Smart Contract Engineer, ERC20, Asset Management System, Solidity Smart Contract Security, Prediction Based Market Platform, Crypto Sniping Bot, Uniswap V2/V3, PancakeSwap, Crypto DeFi Expert, Wallet Intelligence Monitoring, Advanced LMS, Tachograph Compliance Engine, Algorithm Development, Regulatory Compliance, Fractional AI Architect, Applied AI Engineer, Full-Stack SaaS Developer, AI Personal Operating System Developer, AI Solutions Architect, Healthcare SaaS Platform, Agentic AI Architect, Agent Enterprise Ecosystem, Pathwaize Intelligence, Complex System Rebuilt, AI Voice Automation, AI Infrastructure Engineer, LLMOps Engineer, Lead Cryptography & Systems Architect, Multi-Model Workflow, Behavior Analysis & Monitoring Expert, Secure HIPAA Compliant, OpenAI RAG Platform, AI Revenue Systems Builder, Healthcare AI Security Expert, Machine Learning Engineer, AI-Native Software Engineer, AI Pricing Bot Developer, Custom SaaS Platform Development, Vibe Coding Developer, AI Fuel Intelligence, Senior Product Owner/Manager, Startup GenAI SaaS, Healthcare AI Integration Engineer, AI Model Integration, Healthcare Appointment Booking Automation, Healthcare Systems, Solidity contract architecture

My 10 years of experience will allow you to bring products to life quickly Tech stack: NodeJS, React, Express & MongoDB. Crypto: Solana & Ethereum I've built multiple bots such as: ✔️ Coaching Chatbot for Telegram. Embedded ChatGPT will give you advices if you feel stuck ✔️ Routine tracking bot for Telegram (MiniApp) ✔️ Solana trading bot which allows you to snipe contracts from signal groups ✔️ Solana trading bot which allows you to copy-trade any wallet ✔️ Ethereum-based NFT trading bot for Opensea which sends bids to NFTs and resells bought ones I'm not here just to write code. I want to make sure that my code helps you make money

GoHighLevel (GHL) Expert | CRM Automation | Make | API Integrations I help businesses streamline their operations with GoHighLevel, workflow automation, and system integrations. Most of my work involves setting up and optimizing CRM systems, automating repetitive processes, improving lead management, and connecting business tools so data flows reliably between platforms. I work with agencies, coaches, service businesses, and education companies that want to reduce manual work, improve customer communication, and build systems that scale. My core expertise includes: • GoHighLevel CRM setup, optimization, and troubleshooting • Workflow automation and business process improvement • Lead management, tagging, segmentation, and follow-up systems • Calendar, appointment, and scheduling automation • CRM audits, cleanup, and account restructuring • Funnel and landing page implementation • Contact synchronization across multiple platforms • API integrations, webhooks, and custom automation solutions Platforms & Tools: ✅ GoHighLevel (GHL) ✅ Make ✅ Zapier ✅ n8n ✅ Airtable ✅ HubSpot ✅ ActiveCampaign ✅ Google Sheets ✅ ClickFunnels ✅ Wix ✅ Unbounce ✅ Glide What I can help you with: • Cleaning up and reorganizing an existing GoHighLevel account • Building workflows and automations from scratch • Fixing broken automations and troubleshooting issues • Creating lead nurturing systems using email and SMS • Connecting third-party applications through APIs, Make, Zapier, or webhooks • Setting up pipelines, opportunities, tags, calendars, and notifications • Creating landing pages, forms, surveys, and funnel assets • Synchronizing customer data across multiple platforms • Building internal systems that reduce administrative work Recent project experience: ✔ Dental Education Business Implemented landing pages, CRM automation, SMS and email sequences, lead tracking, pipeline management, and operational workflows that significantly reduced manual administration. ✔ Insurance Agency Built a lead capture and follow-up system with automated email communication, lead qualification, payment collection, and CRM automation. ✔ Real Estate Company Created automated lead distribution, instant notifications, follow-up workflows, and scheduling processes that improved response times and lead handling efficiency. My approach is simple: 1. Understand your current process and identify bottlenecks. 2. Build practical solutions that solve the problem instead of adding unnecessary complexity. 3. Deliver documentation and clear explanations so your team can confidently use and maintain the system. Clients appreciate my attention to detail, reliability, clear communication, and ability to translate business requirements into working automation systems. If you need help with GoHighLevel, CRM optimization, workflow automation, Make scenarios, API integrations, or account cleanup, feel free to reach out.

Available today [30..06] 𝑭𝒓𝒆𝒆 𝒅𝒊𝒔𝒄𝒐𝒗𝒆𝒓𝒚 𝒄𝒂𝒍𝒍 + 𝒕𝒆𝒄𝒉 𝒂𝒖𝒅𝒊𝒕 𝒐𝒇 𝒚𝒐𝒖𝒓 𝒘𝒐𝒓𝒌𝒇𝒍𝒐𝒘 - 𝒏𝒐 𝒄𝒐𝒎𝒎𝒊𝒕𝒎𝒆𝒏𝒕. 10+ 𝙝𝙧𝙨/𝙬𝙚𝙚𝙠 𝙨𝙖𝙫𝙚𝙙 • 40% 𝙛𝙖𝙨𝙩𝙚𝙧 𝙨𝙪𝙥𝙥𝙤𝙧𝙩 • 20 𝙝𝙧𝙨/𝙢𝙤𝙣𝙩𝙝 𝙛𝙧𝙚𝙚𝙙 • 1,500+ 𝙥𝙖𝙮𝙞𝙣𝙜 𝙢𝙚𝙢𝙗𝙚𝙧𝙨 𝙤𝙣 𝙖𝙪𝙩𝙤𝙥𝙞𝙡𝙤𝙩 If your team still merges spreadsheets by hand, chases payment statuses in DMs, or copy-pastes leads between tools - you're bleeding time you'll never get back. I fix that with Telegram bots, AI integration, and custom automation. One system that works while your team does literally anything else. 𝙍𝙚𝙘𝙚𝙣𝙩 𝙧𝙚𝙨𝙪𝙡𝙩𝙨 𝙛𝙧𝙤𝙢 𝙧𝙚𝙖𝙡 𝙥𝙧𝙤𝙟𝙚𝙘𝙩𝙨: - Telegram bot saved 10+ hours/week on workload reporting for a 50+ employee manufacturer - full automation of multi-source Excel merging - 40% faster support with a Telegram bot + Freshdesk ticket automation - 20 hrs/month freed via Telegram bot for lead intake - smart routing automation with UTM analytics - Subscription Telegram bot with payment automation and AI integration for 1,500+ members - zero manual work - Public Telegram bot habit tracker with onboarding automation and reminder automation 𝙒𝙝𝙖𝙩 𝙄 𝙗𝙧𝙞𝙣𝙜 𝙩𝙤 𝙚𝙫𝙚𝙧𝙮 𝙖𝙪𝙩𝙤𝙢𝙖𝙩𝙞𝙤𝙣 𝙥𝙧𝙤𝙟𝙚𝙘𝙩: - Discovery before development - I figure out what automation your business actually needs, and whether AI integration can make it smarter - AI integration that's practical - GPT, Claude, RAG agents trained on your data, not generic ChatGPT wrappers - AI integration that fits your workflow - custom knowledge bases, intelligent routing, document Q&A - Telegram bot expertise - 5+ production bots, from helpdesk to subscriptions to reporting, with AI integration where it adds value - Transparent budget - min-max cost range before we code - In-house team, founder-led - Belgrade, no subcontractors - Weekly written updates, 6-month warranty, full code ownership I take on automation projects only. Not one-off scripts, not WordPress tweaks, not no-code-only builds. If manual work is eating your team alive, I'll build the Telegram bot with AI integration and automation that replaces it. Tech stack: TypeScript, Node.js, Python, Java, React, Vue, PostgreSQL, MongoDB, Docker, Telegram API, Google Sheets API, REST APIs, GPT API, Claude API

Want smarter automation, better user engagement, and AI-powered growth? Send me your idea and I’ll break it down into a clear AI Chatbot Development strategy with quick wins and scalable long-term architecture. As your AI Chatbot Developer / AI Agent Developer, I’ll also explain how AI Chatbot Development drives business development and revenue 🤖 🔹 AI Engineer with 18+ years of programming experience (since 2006) 🔹 100+ chatbots / ai agent built as AI Agent Engineer resolving 70%+ of queries autonomously 🔹 Business-first mindset focused on ROI 🔹 Trusted AI Automation Specialist automating 50+ daily tasks / Automation Engineer saving 500+ hours/month for 100+ clients & 20+ startups 🔹 AI Agent Developer | AI Chatbot Developer | Telegram Bot Expert | Web Developer 🔹 Fast, clear communication & startup-friendly mindset I’m a senior engineer / ai agent developer / ai chatbot developer / agentic ai developer specializing in AI chatbot, AI platforms, AI solutions for Crypto and automation-driven businesses. My work focuses on building production-ready AI Chatbot (s), AI Agent (s), AI RAG, AI assistants, autonomous agents, Telegram trading bots, and crypto Telegram bots that scale securely and reliably. Whether you need website chats, voice AI agent, customer support automation, Telegram bots, Slack bots or advanced AI RAG systems, my approach ensures real business impact—not just demos. 🚀 AI Results I’ve Delivered • AI Chatbot Development of 100+ Python chatbots deployed across websites, Telegram, and Slack shipped across 30+ countries • 50+ AI Agent Development and bot development projects automating customer support and lead generation • 30+ AI workflow automation pipelines cutting manual processing time by 70%+ • Data Science and Data Analysis pipelines reducing human support workload by 60%+ • 30+ RAG, Neural Network and Natural Language Processing (NLP) solutions improving response accuracy by 40%+ • 15+ PyTorch and 4+ TensorFlow models trained and deployed to production • 30+ PHP and WordPress sites with custom AI chatbot and API integration over 10+ providers • 25+ Node.js and 12+ React and JavaScript projects handling 10,000+ concurrent users • Generative AI, Artificial Intelligence integrations raising user engagement by 45%+ • Machine Learning and Deep Learning architectures lifting AI prediction accuracy to 95%+ • 40+ Blockchain projects over 10+ DeFi, wallets, payment systems • AI sales agent and deal closer chatbots lifting conversion rates by 35%+ 📌 Full-Spectrum AI Chatbot Development Services • AI Agent Development, bot development and AI workflow automation • SaaS assistant • AI Agent Developer for startups and enterprises • AI RAG chatbot system for private data & SaaS • AI customer support & lead gerenation • Website chatbot, Slack bot & Voiceflow chatbot • Business automation and AI integration • Etsy marketing and Pinterest marketing • WordPress, API integration & admin dashboard • Blockchain & Web3 chatbot • Crypto / Blockchain Telegram trading bots • AI Agent automation & conversational workflow • Multi-agent & AI Agent Developer services • Practical deployments for customer support (Tidio) and lead generation (Conversiobot) Developer Stack • LangChain, LangGraph, CrewAI, AutoGen, OpenAI • Open AI chatbot, Claude, Gemini, GPT-3 & GPT-4 integrations • Flask, FastAPI, DialogFlow, ManyChat, Botpress • FAISS, Chroma, Pinecone, Weaviate, MySQL, PostgreSQL, MongoDB • Website chat, Telegram bot, WhatsApp chatbot, Slack & Discord bot • Python, PHP, JavaScript, Node.js & React 📈 Advanced AI Chatbot Development & AI Agent Development I don’t just “build bots” — I engineer intelligent systems. My AI Chatbot Developer process covers conversation design, model selection, AI Agent Development, and scalable backend architecture. Using LangChain, LangGraph, ai agent n8n, FastAPI, and modern AI pipelines, I've built 100+ AI Agents that reason, retrieve data, and execute workflows — as your expert AI Agent builder trusted by 50+ businesses and AI Agent creator with 70%+ autonomous query resolution. As a senior AI Chatbot Developer / AI Agent Developer, my focus is reliability, security, and measurable results for chatbot marketing and business automation. • For SaaS & AI platforms, I build AI RAG chatbot solutions that answer accurately from private data. • For startups, I provide MVP-focused AI Chatbot Development that scales smoothly. • For Crypto projects, I deliver chatbots integrated with smart contracts and payment systems. 📩 If you’re looking for a senior AI Chatbot Developer / AI Agent Developer specializing in AI Chatbot Development, AI RAG systems and conversion-focused AI Chatbot Developer solutions, let’s talk. I build intelligent systems that actually work — and scale.

🚀 Full-Stack (MERN/Django) who ships production web apps, APIs & automations , fast and clean. I build Tlg bots, reliable web scrapers (Python/Go), and AI-powered features (LLM integration, prompt engineering, ML). CI/CD DevOps so deploys are boring & repeatable. Hi, I turn vague ideas into shipped products, or jump into messy codebases and make them stable, secure, and maintainable. Delivered for clients in USA , Germany, Niger, Emirates, France & Indonesia . What I build : 🧩 Web apps & dashboards : React/Next + Node (MERN) or Django/DRF 🔐 Auth & payments : JWT/OAuth, RBAC, Stripe subscriptions & webhooks 🔌 APIs & integrations : REST/GraphQL, webhooks, Twilio, email, maps, CRMs 🤖 Tlg bots : commands, webhooks, admin tools, logging, payments 🕸️ Scraping/ETL : Playwright/colly, rotating proxies, retries (compliance-first) 🧠 AI & ML : LLM integration, prompt design, RAG/embeddings, basic ML pipelines 🚢 DevOps : Docker, CI/CD (GitHub Actions), monitoring; deploys to Vercel/AWS/Render How I work : 🗺️ Clear plan day one (scope, milestones, success criteria) 🔁 Small milestones, daily updates + short Looms ✅ Tested code + clean docs (Swagger/Postman/README) and smooth handover