As a React Developer and Full Stack Developer I build custom Web Application products for B2B clients, from interface to backend. Most of my work is Full Stack Developer React Node delivery, where a React frontend and a Node.js backend support one business workflow end to end. As a Node.js Developer I own the REST API logic, authentication, roles and permissions, and the data layer behind each product. My focus is practical Web Application Development that ships, scales, and stays maintainable, with clean API Integration at the core. Across 14+ years and 130+ completed projects I have built 60+ SaaS, CRM and dashboard products, 40+ admin panels and client portals, and 200+ REST API integrations. As a React Developer and Full Stack Developer with experience leading development teams of up to 6, I have shipped for 50+ EU and US B2B clients across SaaS platforms, CRM systems, marketplaces, booking websites and API Integration projects. As a React Developer I build Web Application interfaces with React.js, Next.js, TypeScript and Responsive UI , wired to live data through API Integration . As a React Frontend Developer and Frontend Developer I deliver usable, fast interfaces — data tables, filters, admin panels and client portals. On the backend side, as a Node.js Developer and Backend Developer I build the REST API layer, ExpressJS services, authentication, roles and permissions, payment flows and CRM integrations. Many clients come to me as a Node.js Developer when a frontend already exists but the API, the data model and the business logic need to be done right. As a Backend Developer I keep the Node.js layer predictable and documented, and as a Node.js Developer I handle the API Integration between third-party services, the database and the frontend. A typical Full Stack Developer React Node project for me looks like this: a SaaS platform or internal business tool with a React frontend, a Node.js backend, a structured database and an admin workflow for the team behind it. On every Full Stack Developer React Node build I design the database structure, the REST API , the dashboards and the permissions model so the product holds up as it grows. This Full Stack Developer React Node approach keeps frontend and backend in one system. Hiring one Full Stack Developer React Node engineer also keeps the React Developer and Node.js Developer decisions consistent across the whole build. I also work as a Directus Developer and Headless CMS Developer . On 20+ content-driven and data-heavy products I use Directus CMS or Strapi as a headless backend, which gives clients a clean admin panel and an API-ready foundation. As a Directus Developer I model the data, set roles and permissions, and connect a React frontend through REST API ; as a Strapi Developer I do the same on Strapi. Headless CMS work with Directus CMS pairs naturally with my React Developer and Node.js Developer delivery. Stack I use daily: React, React.js, Next.js, Node.js, TypeScript and JavaScript on the application side; ExpressJS, REST API and API Integration on the service side; SQL, MySQL, MongoDB, Firebase and Supabase for data; Directus CMS and Strapi for headless content. Authentication, roles and permissions, payment flows, dashboards, data tables, filters and admin workflows are standard parts of how I deliver Web Application Development . How I work on a Full Stack Developer React Node project: discovery and scope first, then architecture and backlog, design where needed, development in sprints, QA on staging, production release, and support after launch. As a Web Developer with 14+ years behind me, my main promise is delivery predictability — clear scope and no surprises. As a JavaScript Developer I write code the next developer can actually read and extend. Typical projects clients hire me for: SaaS platform development, CRM systems, admin panels, marketplaces, booking websites, lead generation websites, dashboards, client portals, internal business tools, e-commerce platforms and API-based Web Application work with workflow automation and business automation. Clients also find me under related searches that match my real stack. On the React side: React Native Developer , React Native App Developer , React Next.js Developer , React Developer Firebase , and Full Stack Developer Supabase React . On the full stack side: Python Full Stack Developer , Full Stack Developer AI , Full Stack Developer Shopify , Full Stack React , Full Stack Node.js React and Node.js React . On the backend: Node.js Backend Developer and Back End Developer Node.js . I also fit Front-End Developer Full-Stack , Python Developer , WordPress Developer , Mobile App Developer and Senior Full Stack Developer . If you need a React Developer , a Full Stack Developer React Node engineer, or a Node.js Developer for a serious product, I can take it from architecture through release and support. Let's talk about your product and what it needs to do.

Stop losing 30+ hours a week to manual operations. I engineer autonomous AI agents and resilient Python infrastructures that turn complex workflows into scalable, hands-off profit centers. Whether you need to automate a 7-figure e-commerce empire, or deploy an institutional-grade RAG pipeline, deploy resilient data extraction & scraping pipelines, engineer custom Discord bots & real-time e-commerce monitors, I provide the architecture that guarantees stability. ☑️ AI / ML : Scikit-learn, Pytorch, Keras, RAG, LangGraph, Agno AI ☑️ Backend : FastAPI, Flask, Django ☑️ Frontend : React, Javascript, Tailwindcss UI, HTML, CSS ☑️ Database : Sqlite3, MongoDB, PostgreSQL, Pinecone(Vector DB) ☑️ Bots : AI Chatbots, Trading bots, Monitoring bots ☑️ Scraping/Automation : Scrapy | Requests | Beautifulsoup | ETL | Selenium | Playwright ☑️ Algorithmic Trading : Trading bots( Forex bot, crypto bot, futures bot ) , Strategy backtesting, QuantConnect | MT5 | IBKR | Tradingview | NinjaTrader ☑️ DevOps : Docker | Git | GitHub Actions, AWS ✨ Let’s transform your ideas into intelligent, automated solutions. Whether you need AI agents development, custom web apps, data scraping, trading bots, workflow automation or complete E-commerce business automation, I create powerful tools that save time and boost efficiency. From startups to e-commerce and trading platforms, I deliver scalable, results-driven systems tailored to your needs. Ready to elevate your business with smart automation? Let’s connect!

We specialize in financial modeling and investor pitch decks that help startups and businesses make data-driven decisions and secure funding. Whether you need an investment-ready financial model or a compelling pitch deck, we deliver high-quality, structured outputs that align with investor expectations. Meet the Team: 👤 Dmitry Karavaev, CFA – Financial Expert | Investment & Valuation Specialist • 15+ years in finance, including managing a $600M portfolio at a Dubai-based family office and serving as Head of Research at a crypto fund. • Expert in financial modeling, valuation, investment strategy, and risk analysis. • Experience across private equity, structured products, derivatives, and crypto assets. • MSc in International Finance & CFA Charterholder. 👤 Alexei Rezvanov – Pitch Deck & Growth Marketing Specialist • Former Marketing & PR Manager at Graphene Ventures, a leading Silicon Valley VC firm focused on early stage investments. • Ex-owner of a digital production agency with a team of 25+ designers and developers who created web and mobile solutions for Hisense, Norilsk Nickel, Comepay, Louis Vuitton, Metso, Takeda and many others. • Created 50+ pitch decks that successfully helped startups attract investments. • Expert in business modeling, financial storytelling, and investor-ready presentations. • Strong background in market research, digital ventures, and startup strategy. What We Offer: ✅ We apply various valuation methodologies, including DCF, precedent transactions, comparable company analysis, LBO modeling, and asset-based valuation. ✅ Pitch Decks & Investor Presentations – Engaging, data-driven decks that tell a compelling story. ✅ Video Pitch Deck – Your pitch, packed in 25-40 sec video with professional voiceover. ✅ Market Research & Competitive Analysis – Insights to strengthen financial projections. ✅ Fast Turnaround & High Accuracy – Delivering high-quality results within 48 hours. 📩 Let’s craft investor-ready financial models and pitch decks to help your business secure funding!

🔑 𝐀𝐬 𝐚𝐧 𝐞𝐱𝐩𝐞𝐫𝐭 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭, 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐧𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬, 𝐜𝐫𝐞𝐚𝐭𝐞 𝐯𝐚𝐥𝐮𝐞 𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬. 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬: 🧑‍💻 8+ years of experience as a Artificial Intelligence Specialist and Full Stack Developer 🚀 50+ market-winning projects launched ⌛ Around 7500 hours on Upwork 🎯 Top-Rated on Upwork 𝐏𝐫𝐨𝐯𝐞𝐧 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐞𝐬𝐮𝐥𝐭𝐬: 𝐋𝐋𝐌 & 𝐃𝐚𝐭𝐚 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 - Dataflik – ML ranking on 40 years of sales data; ElasticSearch stack serving 200M+ rows for instant address search and lead scoring. - SearchLook – End-to-end background-check platform; 100+ scrapers, AWS pipelines, cron-scheduled waves, MTurk for human-in-the-loop tasks. - Estateza – 24/7 real-estate scrapers with hourly Slack reports, proxy rotation, rent estimator engine, two public/data-sale APIs, AWS→Linode migration with K8s + EL 𝐑𝐞𝐯𝐎𝐩𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬 - Huge (Recruitment) — Automated job postings & CV parsing pipeline; scraping + structured data workflows streamlined hiring process. - Haeussler Queue & OT — Token issuance, employee/room allocation + production workflow tracking, dashboards & to-dos. - Zoho CRM + Streamlit — Financial data migration to Zoho; Python/Streamlit dashboards for quick interactive insights. 𝐋𝐋𝐌 𝐂𝐡𝐚𝐭𝐛𝐨𝐭𝐬 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬 - Vapi.ai Assistants – Inbound receptionist bots and outbound sales callers handling thousands of interactions; integrated with CRMs. - Voice Scheduling – Built AI rescheduler/confirmation bots integrated with Calendly and website APIs; reduced human agent workload drastically. - STSMS (Marine Ops) – Operator + customer portals with chat features; mobile offline app for Mooring Masters with push notifications. 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐒𝐤𝐢𝐥𝐥𝐬: - 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Python (Django, Flask, FastAPI, Streamlit), JavaScript/TypeScript (React, Next.js, Angular, Node.js), GoLang for APIs, Solidity for blockchain. → Strong in full-stack app development, backend APIs, and smart contracts. - 𝐀𝐈 & 𝐋𝐋𝐌: OpenAI, LangChain, LangGraph, LlamaIndex, Hugging Face Transformers, TensorFlow, vector databases (Qdrant, Pinecone, Weaviate, ElasticSearch). → Skilled in building RAG pipelines, conversational AI, embeddings, fine-tuning and reinforcement learning. - 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈: n8n, Make.com, Zapier, Vapi.ai, Twilio, Voiceflow, Dialogflow, Calendly API, Hunter.io, HeyReach. → Expert at workflow orchestration, AI voice assistants, CRM automations and lead qualification. - 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐁𝐢𝐠 𝐃𝐚𝐭𝐚: PostgreSQL, MySQL, MongoDB, ElasticSearch (200M+ rows), Redis, ELK stack (ElasticSearch, Logstash, Kibana). → Experienced in large-scale data engineering, search optimization and real-time analytics. - 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, GCP, Azure, Linode, Kubernetes, Docker, CI/CD pipelines, VPS clusters, monitoring systems. → Proficient in deploying, scaling, and maintaining high-availability cloud and DevOps infrastructures. - 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐏𝐈𝐬: CRMs (Zoho, HubSpot, Salesforce), ERPs, Shopify, WordPress, Stripe, PayPal, Google Workspace APIs, Social APIs (Facebook, Twitter/X, Instagram). → Strong in API design, SaaS integrations, and connecting business tools for end-to-end automation. - 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: Web scraping (Scrapy, Selenium, BeautifulSoup), royalty attribution engines, real-time trading bots, document/PDF Q&A, queue management, automated SEO/blog publishing. → Adept at domain-specific AI systems and industry-focused automation solutions. 🌟𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐚𝐯𝐞 𝐭𝐨 𝐬𝐚𝐲 𝐚𝐛𝐨𝐮𝐭 𝐦𝐞: 🌟 Usama is in the top tier of software developers and data engineers. He is far more than an implementer; he is a strong architect.  During this project set, Usama worked on data from major US corporations 🌟 One of the best developers I have ever worked with. He is always on time and does exactly what he says he will do. I could not recommend him enough. ✅ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞: → On-Time & On-Budget → 95% successful track record → Startup to Fortune 100 → Proven experience across all scales → End-to-End Ownership → From design to production deployment ❌ 𝗡𝗼𝘁 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝗶𝗳: → Price is your only priority. → You want results in <2 weeks. → You work in gambling/adult industries. Looking forward to working with you!

Looking for expert assistance in Stock Market Trading Automation and Chatbot Automation? Look no further! I'm a seasoned developer with a strong track record in both domains. With a deep understanding of financial markets, I can develop automated trading strategies to optimize your investments. Additionally, my chatbot automation skills can enhance your customer support and streamline interactions. Let's boost your efficiency and profitability together. Hire me today for top-notch solutions!

Top Rated Algorithmic Trading Developer on Upwork with 500+ hours and 3+ years of experience delivering 100+ trading systems to Hedge Funds, HNIs, and retail traders across Stocks, Crypto, and Forex markets. Backtest with Confidence. Trade with Precision. 📊⚡ I specialize in the complete lifecycle of systematic trading — from strategy development and rigorous backtesting to optimization and live deployment in real market conditions. This isn’t a “deliver and disappear” service. I provide post-deployment support and lifetime free bug fixes to ensure your systems continue to perform reliably. 🔧 What I Build Trading Bots 🤖 — eliminate emotions and reduce screen time Backtesting Systems 📊 — validate and refine strategies before risking capital Screeners & Alerts 🔍 — never miss trading opportunities Pine Script to Python Conversion ⚡ — overcome platform limitations and reduce latency My Approach Understand complete requirements via Zoom or detailed documentation Provide a rough estimate based on scope Clarify all doubts before finalizing Share a detailed quote (deliverables, cost, timeline) Provide regular progress updates 📈 Deliver with structured post-deployment support Why Work With Me? Focus on data-driven decision making 📊 Strong emphasis on statistical validation & robustness Experience across multiple asset classes Long-term reliability with ongoing support 🤝 Important Note I do not sell pre-made bots or strategies. Every system is custom-built based on your unique requirements and trading logic. If you're looking for a reliable algorithmic trading developer to turn your trading ideas into robust, production-ready systems — feel free to send a message or invite me to your project.

I build reliable n8n automation, AI automation, CRM automation, Make workflows, Zapier workflows, and API integrations that remove manual work, improve lead follow-up, and keep business systems running without fragile handoffs. I’m a Top Rated Upwork freelancer with 100% Job Success, $80K+ earned, and 130+ completed projects. My work combines n8n automation, automation, CRM systems, API integrations, and full-stack development, so I can connect your existing tools and also build custom dashboards, portals, backend systems, and web apps when no-code tools are not enough. Clients usually come to me when: → Leads are coming in but not being tracked, assigned, or followed up properly → Their CRM is messy, duplicated, slow, or difficult for the team to use → Their team is spending too much time on repetitive admin work → Forms, websites, calendars, email, SMS, payments, and CRM tools are disconnected → Existing Zapier, Make, or n8n workflows are breaking with real users and real data → They need AI workflows, API integrations, dashboards, portals, or full-stack systems built properly I can help with: → n8n automation workflows → AI automation → CRM setup, cleanup, customization, pipeline automation, and lead management → CRM integrations with websites, forms, ads, calendars, email, SMS, payment tools, and reporting systems → AI automation and AI-powered business workflows using OpenAI, Claude, ChatGPT, and AI agents → Make scenarios, Zapier workflows, webhooks, REST APIs, and custom API integrations → Automated lead capture, routing, scoring, assignment, follow-up, reporting, invoicing, and document generation → Internal dashboards, admin panels, client portals, SaaS tools, and custom business applications → Full-stack development using React, Node.js, Python, Django, Flask, FastAPI, Express, MongoDB, PostgreSQL, MySQL, and REST APIs CRM platforms I work with include: GoHighLevel, Hubspot, Pipedrive, Salesforce, Zoho CRM, Monday, Airtable, ClickUp, Keap, Freshsales, ActiveCampaign, Mailchimp, Klaviyo, Insightly, Copper, and custom CRM systems. Automation and integration tools I use include: n8n, Make, Zapier, OpenAI, Claude, ChatGPT, Google Apps Script, Airtable, Notion, Google Sheets, Slack, Trello, Asana, ClickUp, APIs, webhooks, custom Python scripts, and Node.js backend logic. Before building, I map the full workflow: → Where the data starts → Where it needs to go → What should happen automatically → What should stay manual → What can fail → How errors should be logged, retried, or handled This helps avoid fragile automations, duplicate CRM records, broken handoffs, messy dashboards, and expensive rebuilds later. The goal is not just to connect apps together. The goal is to build a clean, reliable system that saves time, reduces errors, improves response speed, and gives your team a process they can actually use after delivery. Along with automation and CRM work, I also support the development side of your business. If your workflow needs a custom dashboard, admin panel, API, client portal, SaaS feature, payment flow, database, or full-stack web app, I can build that as part of the same system. Share your current tools, workflow, and the main problem you want fixed, and I’ll suggest the cleanest way to approach it.

✅Full-time freelancer ✅8 years of 100% job success Dual proficiency in trading and programming. Python based trading software developer. In-depth knowledge of Forex, Crypto, Equities, Options and Futures Market. Skills: -Trading Logic Automation, Robots -TWS API Interactive Brokers, TWS Gateway, ib_insync, ib_async -Algo strategies, Technical Analysis Tools and Automation, Spread Trading, Spread Algorithms -Market Making Algorithms, High Frequency Trading, News Trading -AI, ollama, Open AI, Chat GPT API, Gemma 3, DeepSeek-R1, Llama 4, Phi 4, Mistral -HFT Arbitrage, Statistical Arbitrage, Triangular arbitrage -Crypto API (Binance, Huobi, OKEx, Bitfinex, Bittrex, Kraken, GDAX, BitFlyer, Poloniex) -MetaTrader 4, MetaTrader 5, MQL4, MQL5, C-Trader, Ameritrade, Oanda, Ninja Trader, Trade Station -Financial Information eXchange. FIX 4.4, 5.0, FIXT 1.1, QuickFIX -REST, Socket Programming, API Development, WebSocket, Flask, FastAPI -Order Routing, Liquidity Providing, Liquidity Aggregators, Order Matching Engine, Order Book Aggregation -TradingView, WebHooks, Alert Setup, TradingView Connection To Any Broker or Exchange

I’m a Full-Stack Developer, AI Engineer, and Trading Bot Developer with 10+ years of experience building scalable platforms, automation systems, and advanced algorithmic trading solutions. I specialize in turning complex ideas into high-performance apps, dashboards, and AI-powered trading systems that deliver real, measurable results. 💡 What I Do: * Full-Stack Development: Laravel, Node.js, Vue.js, React, MySQL/PostgreSQL, APIs, admin dashboards, SaaS systems, and real-time applications. * AI Engineering: LLM integrations (OpenAI, Llama), automation agents, data analysis, custom AI chat systems, trading intelligence, and predictive models. * Trading Bot Development: MT4/MT5 EAs, TradingView (Pine Script), Binance APIs, arbitrage systems, high-frequency trading, market-making, copy-trading, and smart risk-management logic. 📈 My Specialties: * Automated trading workflows (crypto, forex, indices) * Strategy development and optimization (HFT, arbitrage, SMC, ICT) * Web dashboards with real-time trading data and notifications * Secure handling of API keys, encrypted storage, and cloud deployment * End-to-end system design: frontend, backend, and AI logic ✨ Why Clients Hire Me: * Deep experience across AI, trading, and full-stack development * Clean architecture, maintainable code, and fast delivery * Ability to understand and improve complex trading strategies * Long-term support for scaling, optimization, and monitoring If you want a reliable engineer who can build AI-driven trading bots, full web platforms, and smart automation tools, I’m here to help. Let’s build something powerful together.

I help businesses and startups build scalable web platforms, AI automations, and custom software systems. Over the past few years, I’ve worked on SaaS platforms, Telegram Mini Apps, automation systems, dashboards, business tools, and AI-powered solutions using technologies like React, TypeScript, FastAPI, Python, Node.js, and C#. I focus on building products that are: fast scalable visually polished easy to maintain business-oriented What I can help with: ✔ Full-stack SaaS development ✔ AI integrations & automation ✔ React / Next.js frontends ✔ FastAPI & Node.js backends ✔ Telegram Mini Apps ✔ Dashboards & internal tools ✔ API integrations ✔ Workflow automation systems ✔ Startup MVP development I care a lot about communication, clean architecture, and delivering production-ready solutions that businesses can actually use and grow with. If you’re looking for someone who can understand both the technical and business side of a project, feel free to reach out.