Full Stack Developer SaaS focused on turning complex product ideas into stable, scalable platforms Recent Client Results: ✔️ launch SaaS products in 6-10 weeks ✔️ improve API performance by 30-45% ✔️ reduce manual operations by 40-60% ✔️ build platforms ready to support 10k+ users. As a Full Stack Developer React Node and SaaS Developer I help startups and established businesses. I bring 16+ years in software development, 225+ delivered products and 9+ years of hands-on Node.js experience. As a Certified Full Stack Developer React Node and Web Full Stack React Developer, I focus on business outcomes first: launching SaaS MVPs 30–40% faster, improving release stability, building scalable architecture, and reducing costly rework as products grow. My experience as a Full Stack React JS specialist allows me to deliver production-ready solutions with React.js, Node.js, Next.js, Nest.js, and modern JavaScript Developer workflows, supporting platforms with 10k+ users, 99.9% uptime targets, and integrations across APIs, payments, CRMs, and AI tools. As a Backend Developer Nest.js with strong TypeScript Backend Development skills, I design maintainable server-side application architecture, secure APIs, and clean business logic for SaaS, internal tools, marketplaces, and custom platforms. As a Node js Developer, Nodejs Developer, and Nodejs Backend Developer, I use Node.js to simplify complex workflows, improve backend stability by 30–45%, and support products built on both SQL and NoSQL databases. My Typescript Nodejs background helps teams move 25–35% faster with modular services, readable code, and easier long-term maintenance. I also build advanced integrations with Stripe, third-party services, and node.js graphql solutions for scalable product ecosystems, including platforms with 10k+ users, 99.9% uptime targets, and 20+ API/payment/CRM integrations. I’m a Full Stack Developer React Node with deep experience in scalable web application development across SaaS platforms, CRM systems, dashboards, admin panels, internal tools, and custom business products. My React js Node js work is focused on shipping fast, usable, and maintainable solutions that support real business goals. As a React Developer and Full Stack Developer React Node, I build responsive, scalable interfaces using React, JavaScript, Node.js, and Next.js. My work as a React JS Developer and React JS / Next.js / NestJS Developer focuses on creating fast, user-friendly products that improve usability, support growth, and reduce friction across the customer journey. I also work as a React Native Developer ( Full Stack Developer SaaS ) when a product needs mobile-first extensions or companion app experiences aligned with the main platform. As a Full stack AI SaaS developer, I help businesses with scalable SaaS Projects, Edtech Products with dashboards and payment flows, advanced e-commerce solution beyond CMS limits, Corporate Websites with strong backend logic, marketplace platforms with secure transactions, Authentication and Security with JWT-based access control, API Development and Integration, GraphDB, REST API, node.js graphql, CRM Development, Payment Gateways Stripe Paypal Liqpay, Database Management & Optimization and ongoing Deployment & Maintenance. I also bring practical experience with PHP, Laravel, Python, Vue.js, Angular, React, Node.js, full stack developer supabase react, full stack react native spring boot, JavaScript, MySQL, WordPress, Tailwind CSS, Bootstrap, HTML, HTML5, CSS and CSS 3, TypeScript, Redux, jQuery, Responsive Design, Web Design, PHP, MongoDB, Next.js python full stack developer, full stack developer ai, full stack developer react, full stack developer shopify My work covers full stack node.js react for modern Web Application products, including custom API development and API Integration, while Git supports a clean and reliable delivery workflow. I also bring strong Web Design awareness, helping create interfaces that are not only functional, but also responsive, polished and user-friendly. 👉If you need a Full Stack Web Developer who can launch faster, improve performance, stabilize architecture, and build for long-term growth - let’s discuss your product.

💼 I help businesses automate processes, cut manual work, and turn raw ideas into fully functional digital solutions — saving time and increasing efficiency. ⚡ From AI-powered assistants to complex data pipelines — I deliver results that are fast, reliable, and easy to scale. 🛠 With 5+ years of experience in backend development, automation, and AI integration, I know how to build solutions that work flawlessly in real-world conditions. 💡 Services I offer: • Chatbot development for Telegram, Discord, and other messengers • AI-powered bots with ChatGPT, Claude, Gemini, Grok and other • Web scrapers & data collection (Use private API, Selenium, Puppeteer, Playwright, BeautifulSoup) • Backend development with FastAPI, Flask, Django • API development & integrations • Automation scripts & process optimization • Database design & optimization (PostgreSQL, MySQL, Redis) 📌 Workflow: 1. Requirement Analysis – Understand your needs and define clear goals 2. Planning & Architecture – Choose the best tech stack for your project 3. Development – Write clean, scalable, and maintainable code 4. Testing & Debugging – Ensure stability and performance 5. Delivery & Support – Final deployment with post-launch assistance ✅ Let’s build something powerful together — click «𝗜𝗡𝗩𝗜𝗧𝗘» and let’s start your project today! Best regards, Olexandr Lapchuk ----- 🔑 KEYWORDS: Python backend development, Python backend engineer, Python backend developer, backend developer, backend engineer, backend programmer, backend solutions, backend API development, backend automation, backend architecture, scalable backend, high-performance backend, backend system design, server-side development, server-side programming, Python server-side, backend for web apps, backend for mobile apps, backend API integration, backend optimization, backend debugging, backend deployment, backend maintenance, backend support, backend monitoring, Python automation, process automation, business automation, workflow automation, automation developer, Python scripts, automation scripts, automation solutions, Python automation tools, automation software, automation engineer, automation programming, task automation, data automation, automation for business, automation with Python, automate processes, custom automation tools, process optimization, automation script development, Telegram bot development, Telegram bot developer, Telegram chatbot developer, Telegram automation bot, Telegram custom bot, Telegram bot with API, Telegram bot with database, Telegram bot with payment integration, Telegram bot with webhooks, Telegram bot for business, Telegram bot automation, Telegram bot for customer support, Telegram parser, Telegram data extraction bot, Telegram bot for marketing, Discord bot development, Discord bot developer, Discord chatbot, Discord bot automation, Discord bot with API, Discord bot with moderation tools, Discord bot with database, Discord bot with commands, Discord bot for gaming community, Discord bot for business, Discord bot for automation, Discord scraper, Discord data extraction bot, Chatbot development, chatbot developer, chatbot programmer, custom chatbot development, business chatbot, customer service chatbot, chatbot with API integration, chatbot with database, chatbot with payment gateway, chatbot with natural language processing, chatbot integration, chatbot automation, chatbot for websites, chatbot for social media, chatbot for e-commerce, Web scraping, web scraper, web scraping developer, web scraping engineer, data scraping, data scraper, data extraction, Python scraper, Python web scraper, Playwright scraper, Puppeteer scraper, BeautifulSoup scraper, Selenium scraper, scraping automation, scraping API, custom scraper, Google Maps scraper, e-commerce scraper, marketplace scraper, scraping dynamic websites, scraping with Python, Data extraction, data mining, data collection, Python data extraction, automated data extraction, structured data extraction, unstructured data extraction, scraping HTML, scraping JSON, scraping APIs, scraping JavaScript websites, scraping with proxies, rotating proxies, anti-bot scraping, stealth scraping, bypass scraping protections, API development, API integration, REST API development, REST API integration, API backend development, API with Python, API with FastAPI, API with Django, API with Flask, API testing, API documentation, API automation, third-party API integration, custom API development, secure API development, API for mobile apps, API for web apps, FastAPI development, Django development, Flask development, Python frameworks, web application backend, RESTful backend, microservices backend, scalable backend API, backend with PostgreSQL, backend with MySQL, backend with Redis, caching backend, backend performance tuning

I specialize in professional web scraping and data extraction for businesses that need reliable, up-to-date, and structured information from complex and protected platforms. As a Python Automation specialist with 10+ years of experience in reverse engineering, bot development, Scraping, Web Scraping, Data Scraping, and Python automation, as well as advanced web scraping automation, data scraping, python data scraping, and data scrape systems. I solve challenging automation problems that others can't from advanced web scraping data extraction, data mining data scraping, and API analysis to scalable data scraping bot, web scraper, and data scraping tool development. My daily work focuses on building stable Scraping, Web Scraping, Data Scraping, and Python automation systems for lead generation, social media data extraction, professional network data collection, web scraping real estate, and enterprise data extraction. 🔧 CORE EXPERTISE Web Automation & Browser Automation I build robust automation solutions using industry-leading tools and frameworks focused on web scraping, web scraping automation, data scraping, scraping, and Python automation. Whether you need headless browser automation, workflow automation, or complex data scrape and data extraction pipelines, I deliver scalable systems based on selenium, selenium automation, python selenium, Playwright, Playwright automation, playwright python and Scrapy. My projects regularly include web scraping data extraction, data mining, data analyst workflows, data scientist pipelines, and machine learning data pipelines built through advanced automation engineering. My solutions integrate intelligent proxy rotation, selenium automation engineer practices, and stealth browser automation to keep scraping pipelines stable. 💻 TECHNOLOGY STACK I work daily with Python automation, web scraping, data scraping, and scraping automation using Python, Python Selenium, Selenium, Selenium automation, Playwright, Playwright automation, Playwright Python, Scrapy, BeautifulSoup, Zyte, and custom data extraction frameworks. My stack supports high-volume data scrape, data mining, data extraction, and lead generation pipelines, including data scraping bots, web scraper systems, and enterprise scraping tools. I develop scalable automation platforms using Python, TypeScript, and distributed automation engineering architectures. These systems power bot developer frameworks, operations specialist workflows, and machine learning data processing environments built on structured web scraping and Python automation systems. 🎯 SPECIALIZED SOLUTIONS BY INDUSTRY I build web scraping and data scraping systems for price monitoring, competitor analysis, and product intelligence using Selenium automation, Playwright automation, and Python automation pipelines. I develop social media and professional networking data extraction tools for automated lead generation, data extraction, and CRM integration based on scalable scraping automation frameworks. I design data extraction, data mining, and data scrape systems for data scientists, data analysts, and machine learning teams using Scrapy, BeautifulSoup, Zyte, and enterprise Python automation infrastructure. I create financial data scraping systems, and automation pipelines for paid advertising analytics optimization and campaign performance tracking powered by web scraping and data scraping technologies. I implement web scraping real estate and data scraping lead generation systems for property platforms, real estate listing aggregators, and operations specialist workflows using Selenium, Playwright, and Python automation. 🚀 WHY WORK WITH ME - I specialize in complex scraping, web scraping automation, and data scraping challenges that require deep technical analysis. - Successfully delivered 50+ projects in web scraping, data scraping, scraping automation, and Python automation, ranging from simple data entry systems to enterprise scraping infrastructures. 📬 LET'S TALK Need professional Scraping, Web Scraping, Data Scraping, and Python automation services? Looking for a reliable automation engineer, bot developer, or data extraction specialist? Send me your project details. I typically respond within 2 hours and can start within 24–48 hours.

I am a Senior Blockchain & Web3 Developer with 6+ years of professional experience designing and delivering secure, scalable, and production-ready blockchain solutions across EVM-based networks and Solana. I work end-to-end: from architecture and smart contract design to backend automation, Web3 integrations and deployment with a strong emphasis on security, performance and long-term maintainability. My background covers DeFi protocols, cross-chain systems, multi-chain token supply, NFT platforms, and trading/automation bots, supporting both early-stage startups and established teams. Core Blockchain Expertise: EVM Ecosystem: Ethereum, BSC, Polygon, Arbitrum Solidity smart contracts ERC-20, ERC-721, ERC-1155 standards Solana Ecosystem: Rust-based programs Anchor framework SPL tokens & program architecture Web3 & Full-Stack Integration: Web3.js, Ethers.js, Solana Web3 Wallet integrations(MetaMask, WalletConnect, Phantom) Backend services(Node.js, Python) API design and event-driven architectures Bots&Automation: Algorithmic trading bots(CEX & DEX integrations) On-chain automation and monitoring tools Liquidity and Volume analytics bots Secure key management and infrastructure setup Cross-Chain & Multi-Chain Systems Cross-chain birdge architectures(lock/mint, burn/release) Multi-chain token supply synchronization Relayer and message-passing systems Oracle and validator-based verification models Bridge audits, replay protection and risk mitigation DeFi & Protocol Development AMMs, DEXs, staking, farming, vesting systems Lending & borrowing mechanisms Treasury and reward distribution logic Protocol upgrades and security hardening What you can Expect: Clean, readable, and well-documented code Security-first development approach Thorough testing and deployment support Clear communication and reliable delivery Long-term maintenance and optimization I enjoy working with teams that value quality engineering, transparency, and practical solutions. If you need a developer who understands both blockchain protocols and real-world production requirements, I can help bring your project to life.

I'm a PHP and Python developer with 6+ years of experience. My passion is back-end programming. I like coding the software logic making all the 'magic' behind the curtains. Here is my shortlist of skills and experience. Python: - building chat-bost (Telegram, Discord, social networks) - making different web-scrapers - web-development and interacting directly with MySQL - building different analytics and working with cryptocurrency APIs PHP: - a full-stack web developer with 6+ years of CodeIgniter/WordPress/Opencart experience. - developed several websites and web applications (most of them are written from scratch, and others are based on such engines as Joomla and WordPress) - building WordPress themes and plugins - working with XenForo and developing plugins for the engine I always speak with the client during working on the project to get a clear understanding of his/her needs. My #1 goal will always be to meet your needs and deadline. Just let me know what you want and I'll help you bring your ideas to life. I'd like to find jobs that will allow me to grow as a professional. I want to build and architect applications, make sites on different frameworks and technologies, not only well-known CMSs like WordPress or Opencart (but I like and know them pretty well). Thank you in advance for your time and consideration. I look forward to working with you soon. My experience and skills full list - PHP 5.4/5.5/7 (+CodeIgniter, Symfony) - Python(2.7/3.6) (+Peewee, BeautifulSoup, Scrapy, Requests) - MySQL - Twitter bootstrap - Javascript/jQuery - Frameworks: CodeIgniter, Yii2 - CSS - UML - WordPress - Opencart - Joomla - XenForo - Web Scraping - Chatbots and integrating with social networks APIs - Integrating with cryptocurrency and e-money gateways

🚀 Senior fullstack engineer with 5+ years building production web and mobile apps, AI-powered workflows, GTM systems, and operational infrastructure in Next.js, React, and Node — including AI features powered by Claude and OpenAI. I ship clean, fast, well-tested products from zero to deploy and stay on to make them better. ✅ Top Rated · 100% Job Success · 5★ on every completed contract · EU timezone 🛠 What I build: • Web apps in Next.js / React with TypeScript, Tailwind, and ShadCN for SaaS, AI, CRM, and GTM platforms • Mobile apps in React Native + Expo (sharing logic with the web) • APIs and backend services in Node, Nest.js, and Express • CRM integrations, webhook systems, and API orchestration for GTM workflows • HighLevel (GHL) API integrations, automations, custom workflows, and lead-management systems • AI-powered outbound workflows, operational automation, and internal tooling • Data layers in PostgreSQL, GraphQL, Redis, Prisma, and TypeORM • AI features inside production apps, business workflows, and operational automation — Claude, ChatGPT, OpenAI, automation • End-to-end delivery: architecture → implementation → deployment → monitoring on Vercel • Consultation on AI workflows, product architecture, API integrations, and scalable operational systems 🤖 AI & agent engineering: • LLM app development (Claude, OpenAI, Anthropic API) • Prompt design, tool-calling, and GTM automation workflows • AI-powered sales, CRM, onboarding, and support automations • Agent orchestration, outbound automation, and multi-step business workflows • Retrieval-augmented generation (RAG), embeddings, vector search, and memory design • Evaluation pipelines, guardrails, observability, and production safety • AI consulting for startups building AI-native products and automation systems • OpenClaw: agent configuration, skill development in JS/TS, sandbox & tool permission design, multi-channel bot deployment, model/provider configuration 🧱 Recent work: • Built a multi-app Nx monorepo with interconnected web and mobile apps • Designed and shipped tool-calling AI agents on OpenClaw with custom skills, sandboxed tool permissions, and multi-channel deployment • Built API-driven CRM automations and operational workflows for startup teams • Integrated third-party APIs, webhook pipelines, and automation systems across SaaS products • Built an AI blog generator that writes posts and auto-publishes to a CMS • Implemented a RAG pipeline with retrieval, memory, embeddings, and evaluation guardrails for a production AI feature • Built AI-assisted automation workflows and operational systems for startup teams • Fixed a tricky React Native Expo image-flashing bug other devs had stalled on • Shipped an interactive healthcare CRM for managing doctor schedules • Contributed to a complex EU marketplace for buying and selling businesses • Built a reusable admin-page and internal tooling library powering multiple client products • Refactored open-source canvas npm packages to add custom shapes • Cut visual bugs 3× by introducing visual regression testing in CI ⚙️ Stack Frontend: React · Next.js · TypeScript · Tailwind · ShadCN · Vue State: Zustand · Redux · MobX Mobile: React Native · Expo Backend: Node · Nest.js · Express · GraphQL · REST APIs · Webhooks Data: PostgreSQL · Redis · Prisma · TypeORM · Vector Databases AI & Agents: Claude · Claude Code · OpenAI API · ChatGPT · OpenClaw · LLM apps · Tool calling · RAG · Embeddings · Agent orchestration · Evals & guardrails · Automation · AI workflows CRM & GTM: HighLevel (GHL) · CRM Automation · GTM Engineering · Revenue Automation · Sales Automation · Lead Workflows · API Integrations · Operational Systems · Growth Systems · AI Consulting DevOps: Vercel · GitHub Actions · Sentry · Datadog Tooling: Vite · Storybook · Penpot · Neovim · Apache Superset · Conductor · OpenClaw 👤 How I work Detail-oriented, async-friendly, EU timezone, English C1. I write code I'd be happy to maintain a year later, ship on schedule, and reply within hours. I also use modern AI dev tools (Claude Code, ChatGPT) to move faster without cutting corners on quality. 💪 Key strengths • Senior expertise in Next.js, React, Nest.js, API architecture, and scalable GTM systems • Strong experience integrating CRMs, APIs, automation workflows, and operational tooling • Web + mobile from one engineer (React Native + Expo) • Real LLM, AI automation, and agent engineering experience — tool-calling, RAG, evals, sandboxing, multi-channel deployment • Strong consulting mindset focused on scalable systems, automation, and business efficiency 📩 Tell me about your project, API integration, AI workflow, CRM automation, or growth challenges — I'll give you an honest take on scope, trade-offs, and how I'd build it.

👋 My name is Yuri — I'm Upwork's #1 iOS developer in Ukraine. I'm the founder and lead engineer at Helicon, an award-winning mobile development team. Together, we bring decades of experience in building software with a mission of delivering exceptional results at an impressive pace. Are you looking to create an app and need an expert developer who speaks fluent English? I specialize in: — iOS development (UIKit, SwiftUI) — macOS development (Cocoa, SwiftUI) — Vision Pro, Apple Watch, and Apple TV apps — Product management & expert advice for software projects. At Helicon, we are skilled in most of the well-known Swift frameworks as well as third-parties. See the full list below: — UI Frameworks: SwiftUI, UIKit, Combine, RxSwift, The Composable Architecture (TCA) — Backend & Auth SDKs: Firebase, AWS Amplify, Supabase Swift, Auth0, Appwrite — 3D Frameworks: RealityKit, ARKit, SceneKit, Model I/O, Quick Look — Networking Libraries: URLSession, Alamofire, Moya, Apollo iOS, gRPC — Image & Animation Libraries: Kingfisher, SDWebImage, Nuke, Lottie, AVFoundation — Data Persistence Libraries: SwiftData, Core Data, Realm, GRDB, KeychainAccess — Analytics & Monitoring Tools: Firebase Analytics, Mixpanel, Amplitude, Sentry, Branch — Payments & Subscription SDKs: StoreKit, RevenueCat, Adapty, Stripe, Paddle — Developer Tools & Dependency Managers: Swift Package Manager, CocoaPods, Carthage, SwiftLint, SnapKit — Device & Platform Frameworks: CoreLocation, MapKit, HealthKit, CoreBluetooth, WidgetKit I can also assist you with app distribution, marketing, and launch using: — App Store Connect — Apple Developer Platform — Apple Search Ads — Meta Ads Manager (f.k.a. Facebook Ads Manager) My team has first-hand expertise in applying AI models like Claude Opus and GPT-5 to the mobile development workflow, allowing us to offer a great turnaround time for your project without ever sacrificing the human touch. Advanced English proficiency is a requirement for every developer working at Helicon. We also communicate freely, Ukrainian, Polish, and Russian. Don’t hesitate to send me a quick message and we will go over your idea in detail over a video call or through Upwork chat!

I’ve been building Ruby on Rails websites and web apps for over 5 years, focusing on delivering high-quality results and finding the best solutions for each project. I love bringing ideas to life and have experience successfully launching products. 💡 I’m looking for exciting challenges and long-term collaborations where I can contribute and grow. ⤵️ Here are the skills I feel confident with: Backend: Ruby, Ruby on Rails Frontend: JavaScript, Vue.js, Vuetify, jQuery, HTML, CSS, SASS, Bootstrap Testing tools: RSpec Databases: MySQL, SQLite, PostgreSQL Cloud & DevOps: AWS APIs: REST API, Facebook API, Stripe, TurboSMS API, Fondi API Collaboration tools: Jira, Trello, Asana, Slack, MS Teams, Git (GitHub, GitLab, Bitbucket) I’m comfortable working with these gems: Devise, Active Admin, Kaminari, CarrierWave, Nokogiri, Redis, Resque, Whenever, MiniMagick, aws-sdk, Bugsnag, Skylight, dotenv-rails, etc. I always strive to meet my clients’ needs and deliver the best possible solutions. 💬 Tell me about your project – let’s build something great together! 🚀

I build and migrate CRMs that stop leaking deals — 9+ years across HubSpot, Salesforce, Method CRM, and integrated marketing stacks. Certified by HubSpot Academy (Marketing & CRM, 2021) and Shopify Partners (Developer, 2022). My focus: HubSpot migrations, AI×CRM workflows, and Shopify app builds for B2B SaaS and DTC operators who want their tech stack to actually run their business. How I work: (1) audit your current CRM and integration setup — what's broken, what's missing, what's redundant. (2) map a 30/60/90-day migration plan with clean lifecycle stages, deal pipelines, and lead scoring rules. (3) build the integrations — HubSpot ↔ Salesforce, Shopify ↔ HubSpot, Stripe webhooks, custom API connectors, n8n and Make com automation. (4) ship with documentation and a dashboard that proves the work. Done = HubSpot deal-velocity report, GA4 event attribution, and a Looker Studio panel that survives the next handoff. Stack: HubSpot Operations Hub, Salesforce, Shopify, Klaviyo, Kit (ConvertKit), Stripe, n8n, Make com, Zapier, Python (FastAPI), Node.js, OpenAI API, LangChain, Pinecone. Recent wins on Upwork: $4,000 Method CRM → HubSpot migration strategy with custom-object mapping and lifecycle automation across Sales and Marketing pipelines. $4,000 Shopify app shipped end-to-end (llms.txt generator, JSON-LD schema, AI FAQ generator, AI feed). $1,000 Kit (ConvertKit) hands-on training for a marketing team to run their own list. If your sales team manually copies deal data from emails into spreadsheets, your CRM lifecycle stages are inconsistent, or your AI integration ideas are stuck on whiteboards — that is the work I do. Send me a brief for your CRM migration, marketing automation rebuild, or AI×CRM integration project, whether it is a 2-week sprint or a multi-month rebuild. What is the single workflow eating most of your team's week right now?

I’m a Senior .NET Developer and Solution Architect with 20+ years of commercial software development experience, specializing in high-load backend systems, enterprise web applications, authentication platforms, and cloud-native architecture. My core expertise is building scalable and maintainable systems using modern Microsoft technologies including ASP.NET Core, C#, Entity Framework Core, OpenIddict, Azure, Docker, Kubernetes, RabbitMQ, Redis, Angular, and React. I help companies with: Designing scalable backend architectures Building secure authentication & authorization systems (OAuth2, OpenID Connect, PKCE, JWT) Modernizing legacy .NET Framework applications to modern .NET Developing REST APIs and microservices Performance optimization and database tuning Azure cloud deployments and DevOps pipelines High-concurrency processing systems Complex business workflows and enterprise integrations I have strong experience with: ASP.NET Core / .NET 6–10 OpenIddict / IdentityServer / OAuth2 Entity Framework Core / Dapper / SQL Server Azure App Services / Azure Service Bus / Azure Storage Docker / Kubernetes / CI/CD Angular / React / TypeScript RabbitMQ / MassTransit / Redis Clean Architecture / DDD / CQRS Reporting & PDF generation systems High-load auction and queue processing systems Recent projects include: Enterprise authentication servers with PKCE and JWT flows Educational management platforms with complex domain models Auction systems with bot bidding orchestration Cloud-native APIs running in Kubernetes Advanced reporting systems with dynamic PDF generation Large-scale data migration and modernization projects Clients usually hire me when they need: clean and scalable architecture deep backend expertise difficult integrations solved properly production-ready code instead of quick hacks someone who can work independently and make technical decisions I’m comfortable working both as: Senior Developer Technical Lead Solution Architect Communication is clear, structured, and business-oriented. I focus on long-term maintainability, reliability, and delivering measurable results. Let’s build something robust and scalable. 🚀 Suggested Specialized Profiles 1. Authentication & Security OpenIddict OAuth2/OpenID Connect JWT ASP.NET Identity PKCE SSO 2. Cloud & Backend Architecture ASP.NET Core Azure Docker Kubernetes Microservices RabbitMQ 3. Full Stack .NET ASP.NET Core Angular React SQL Server REST APIs Suggested Skills ASP.NET Core C# .NET Core ASP.NET MVC Azure SQL Server Entity Framework OpenIddict OAuth JWT Angular React TypeScript Docker Kubernetes RabbitMQ Microservices REST API Dapper Redis