Senior Full Stack Developer. Top Rated Plus, 100% Job Success, $276K+ earned across 54 jobs since 2014 on Upwork. CEO/CTO at 2muchcoffee agency. Recent work: Faktastisch (1700+ hrs, $86K, 5-star) full-stack React/Node SaaS rebuild, Proctoring MVP (active), educational platform ($29K React/Next.js), CTO-as-advisor engagements. Past production builds: MediBrain, MyAnswer, VoiceDesk, Cosmo marketplace, Stepler (N1 Swedish Appstore fitness). What I deliver: - Senior full-stack architecture: React + Next.js frontend, Node.js + NestJS backend, PostgreSQL/MongoDB - Code review and architecture consulting for engineering teams - Production-ready SaaS from MVP to scale - TypeScript end-to-end, GraphQL APIs, Supabase, AWS infrastructure - AI integration when projects call for it: OpenAI, RAG, LangChain Tech stack: React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, GraphQL, Supabase. Strong Angular and Python background. Lead engineer for product teams. Senior Full Stack Developer, Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, NestJS Developer, TypeScript Developer, Architecture Consultant, Code Review Specialist, AI Integration Developer.

Need a trusted technical partner to build or scale your product? I help startups and growing companies turn ideas into real products, from MVP to full-scale platforms, as a hands-on Fractional CTO and Lead Full Stack Developer. Hi, I’m Garnik, a SaaS and AI specialist with over 15 years of experience building high-quality B2B and B2C applications across North America. I focus on AI agents, scalable backend systems, API ecosystems, and database architecture, helping teams build reliable, scalable, and practical solutions that deliver real business value. What I Do - Fractional CTO Services: Technology strategy, architecture, hiring, and roadmap planning - Database Architecture: Schema design, performance tuning, migrations - Technical Leadership: Mentoring teams, code reviews, and delivery processes - AI & Agentic Systems: Build intelligent workflows using LLMs and automation tools - RAG & AI Automation: Retrieval-Augmented Generation and decision-support workflows - Web & Mobile Development: Full-stack development from backend to frontend - API Design & Integration: REST, GraphQL, and third-party integrations - Cloud & DevOps: AWS, Azure, DigitalOcean, CI/CD pipelines Tech Stack - Backend: Node.js, NestJS, .NET, Django, Flask, FastAPI - Frontend: React, Next.js, JavaScript, HTML/CSS - Databases: PostgreSQL, MySQL, MongoDB, Cassandra, GraphQL, Vector Database - Cloud: AWS (ECS, EC2, RDS), GCP, Azure, Kubernetes - AI/ML: OpenAI, LangChain, Bedrock, custom AI workflows Whether you're launching a new product, modernizing an existing platform, or looking for guidance on tech strategy - I’m here to help. Let’s connect for a short call and see if we’re a good fit.

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗔𝗜/𝐌𝐋, 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐭, 𝐧𝟖𝐧, 𝐂𝐥𝐚𝐮𝐝𝐞 𝐄𝐱𝐩𝐞𝐫𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝟏𝟎+ 𝗬𝗲𝗮𝗿𝘀 | 𝟭% 𝗼𝗳 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀. ✅$500K+ Total earnings ✅ 10+ Years experience as AI/ML Developer ✅ 160+ Projects Completed. ✅ Top Rated Plus. ✅ 100% Job Success Rate. ✅ AWS certified ✅ Python certified ✅ 50hrs/week available ✅ 60+ AI/ML Integrations 🔴 I am in the 𝗧𝗼𝗽 𝟭% overall on Upwork. 🔴 I am in the 𝗧𝗼𝗽 𝟰% overall on Stack Overflow. 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 / 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬: 𝐂𝐫𝐞𝐰𝐀𝐈 / 𝐀𝐮𝐭𝐨𝐆𝐞𝐧 / 𝐀𝐦𝐚𝐳𝐨𝐧 𝐏𝐨𝐥𝐥𝐲 / 𝐃𝐞𝐞𝐩𝐠𝐫𝐚𝐦 / 𝐑𝐚𝐬𝐚 𝐀𝐈 / 𝐑𝐢𝐯𝐞𝐫𝐬𝐢𝐝𝐞 𝐒𝐃𝐊 / 𝐀𝐳𝐮𝐫𝐞 𝐀𝐈 𝐒𝐩𝐞𝐞𝐜𝐡/𝐋𝐋𝐌 𝐅𝐢𝐧𝐞𝐭𝐮𝐧𝐢𝐧𝐠: 𝐔𝐬𝐢𝐧𝐠 𝐏𝐄𝐅𝐓 / 𝐋𝐨𝐑𝐀 / 𝐐𝐋𝐨𝐑𝐀 / 𝐑𝐋𝐇𝐅 / 𝐃𝐏𝐎 / 𝐒𝐅𝐓 𝐰𝐢𝐭𝐡 𝐔𝐧𝐬𝐥𝐨𝐭𝐡 / 𝐀𝐱𝐨𝐥𝐨𝐭𝐥 / 𝐇𝐮𝐠𝐠𝐢𝐧𝐠𝐅𝐚𝐜𝐞 𝐀𝐮𝐭𝐨𝐓𝐫𝐚𝐢𝐧 / 𝐒𝐚𝐠𝐞𝐌𝐚𝐤𝐞𝐫 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠/𝐎𝐩𝐞𝐧-𝐒𝐨𝐮𝐫𝐜𝐞 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐰𝐨𝐫𝐤 𝐢𝐧 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐧𝐨𝐭 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞𝐬 𝐭𝐡𝐚𝐭 𝐨𝐧𝐥𝐲 𝐥𝐨𝐨𝐤 𝐠𝐨𝐨𝐝 𝐢𝐧 𝐚 𝐩𝐢𝐭𝐜𝐡 𝐝𝐞𝐜𝐤. Over the past 10+ years and 𝟐𝟎,𝟎𝟎𝟎+ 𝐔𝐩𝐰𝐨𝐫𝐤 𝐡𝐨𝐮𝐫𝐬, I have delivered 𝟏𝟔𝟎+ AI and machine learning projects for startups, SaaS companies, healthcare organizations, logistics businesses, and enterprises. My focus is simple build AI solutions that create measurable business value. I specialize in LLM engineering, AI agents, RAG systems, intelligent automation, and end-to-end AI product development. Whether you need an AI-powered SaaS platform, workflow automation, a knowledge retrieval system, or a custom AI application, I can take it from architecture to production deployment. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ➤ Retrieval-Augmented Generation (RAG) Enterprise knowledge systems Semantic and hybrid search Document ingestion pipelines Vector databases: Pinecone, Weaviate, Qdrant, ChromaDB, FAISS, pgvector Production-ready AI search and knowledge retrieval ➤𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 & 𝐌𝐮𝐥𝐭𝐢-𝐀𝐠𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 ✅ CrewAI ✅ LangGraph ✅ AutoGen ✅ Autonomous workflows ✅ Task delegation and orchestration ✅ Agent-based business automation ➤ Generative AI & LLM Development ✅ OpenAI GPT-4o ✅ Anthropic Claude ✅ Google Gemini ✅ Meta Llama ✅ Mistral ✅ DeepSeek ➤ 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐢𝐧𝐜𝐥𝐮𝐝 ✅ Prompt engineering ✅ Function calling ✅ Structured outp uts ✅ Fine-tuning ✅ API integrations ✅ Custom AI applications ➤ 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ✅ n8n ✅Make .com ✅Zapier I build AI-powered workflows that automate sales, operations, customer support, data processing, and internal business processes. ➤ 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 & 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈 ✅ AI receptionists ✅ AI calling systems ✅ Voice assistants ✅ Customer support automation ➤ 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: ✔️ ElevenLabs ✔️ Deepgram ✔️ OpenAI Whisper ✔️ VAPI ✔️ Retell AI ✔️Twilio ➤ 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 ✔️ Predictive analytics ✔️ Forecasting ✔️ NLP pipelines ✔️ Entity extraction ✔️ Sentiment analysis ✔️ Recommendation systems ✔️ Computer vision ✔️ PyTorch ✔️ TensorFlow ➤ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐀𝐈 𝐃𝐞 ✔️ FastAPI ✔️ Flask ✔️ Python ✔️ Node.js ✔️ React ✔️ Next.js ✔️ PostgreSQL ✔️ Supabase ✔️ MongoDB ✔️ Redis ✔️ REST APIs ✔️ Docker ✔️ GitHub Actions ✔️ AWS ✔️ GCP ✔️ Azure 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐒𝐞𝐫𝐯𝐞𝐝: 🏥 Healthcare HIPAA-aware AI solutions, clinical NLP, medical document analysis, healthcare analytics, and patient data workflows. 🏢 Real Estate AI-powered CRMs, lead qualification, property search, recommendation systems, and document extraction. 🚛 Logistics & Supply Chain Route optimization, demand forecasting, anomaly detection, and operational intelligence systems. 🛒 Ecommerce Recommendation engines, semantic product search, dynamic pricing, and AI customer support. 🏦 SaaS AI feature development, LLM integrations, AI-native products, and platform modernization. 🏦 FinTech Fraud detection, financial document processing, compliance workflows, and risk analytics. 🏫 Education & Manufacturing AI tutoring systems, content generation, predictive maintenance, quality assurance, and computer vision solutions. 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 I focus on building solutions that solve business problems, not just technically impressive demos. Clients value: ✅ Clear communication ✅ Reliable delivery ✅ Honest timelines ✅ Production-ready architecture ✅ Well-documented systems ✅ Long-term maintainability If a simpler solution will deliver better results, I will recommend it. 𝐓𝐲𝐩𝐢𝐜𝐚𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 ✅ AI SaaS products from idea to launch ✅ RAG systems built on proprietary company data ✅ AI agents and workflow automation ✅ Voice AI and conversational AI products ✅ LLM integration into existing platforms If you are looking for an AI engineer who can design, build, and deploy production-grade AI systems, I had be happy to review your project and provide an honest assessment within 24 hours.

Concerned about poor app performance impacting your bottom line? Research indicates that 53% of users will abandon an app if it takes more than three seconds to load. I am a Senior Ruby on Rails developer with a 8 years of experience in web application development, with a deep understanding of the Ruby on Rails framework, I am committed to delivering exceptional results and providing efficient solutions to your projects 𝐌𝐘 𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐀𝐑𝐄: 1. Spearheaded the successful delivery and launch of 25 sophisticated Ruby on Rails web applications, ensuring seamless functionality and adherence to client specifications, resulting in high client satisfaction rates 2. Orchestrated performance optimization initiatives, implementing cutting-edge strategies that led to a remarkable 42% reduction in page load times, enhancing user experience and increasing user engagement 3. Guided a multidisciplinary development team in the seamless migration of a complex legacy system to Ruby on Rails, streamlining operations, improving system efficiency, and generating substantial cost savings in maintenance and support 4. Implemented rigorous security protocols and industry best practices, fortifying Ruby on Rails applications against potential cyber threats and reducing the risk of data breaches by a significant 50%, safeguarding sensitive user information 5. Demonstrated active involvement in the Ruby on Rails community by making impactful contributions to open-source projects. Garnered recognition for 3 notable code contributions, widely adopted by the community, and enhancing the overall functionality and reliability of the Ruby on Rails ecosystem 𝐖𝐇𝐀𝐓 𝐌𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐀𝐘 𝐀𝐁𝐎𝐔𝐓 𝐌𝐄: ⭐️ «Vladimir delivered exceptional results for our healthcare project. Gotoinc’s expertise in Ruby on Rails development exceeded our expectations. Their attention to detail, adherence to coding best practices, and a strong focus on security ensured the protection of sensitive patient data. Their professionalism, effective communication, and timely delivery were impressive. We look forward to future collaborations» - Sarah, CTO ⭐️ «We are highly satisfied with Gotoinc Team’s work on our e-commerce platform. Their deep knowledge of Ruby on Rails and e-commerce best practices resulted in a robust, scalable, and user-friendly web application. Their optimization techniques improved performance, leading to faster page load times and increased conversions. Their proactive communication and attention to detail made the project a success. We highly recommend the Gotoinc team for e-commerce projects» - Alex, Co-Founder 𝐇𝐎𝐖 𝐓𝐇𝐄 𝐇𝐈𝐑𝐈𝐍𝐆 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 𝐋𝐎𝐎𝐊𝐒 𝐋𝐈𝐊𝐄: There are two options for collaborating with Gotoinc: - Talents-as-a-Service model a dedicated expert(-s) on a subscription basis. - Project-Based Collaboration model we deliver a certain scope or solution in a pre-defined timeline/budget. 𝐇𝐨𝐰 𝐭𝐨 𝐬𝐭𝐚𝐫𝐭: 1. Having an intro, where we identify your request 2. Our team identifies specific Talent or Team for your request 3. We deeply research your request and outline unique collaboration terms 4. Gotoinc presents your unique proposal and negotiates it with You 5. We sign a contract 6. We kick off our ongoing collaboration 💻 𝐑𝐮𝐛𝐲: Ruby, Rails, Sinatra, Padrino, Grape, Sidekiq, Nginx, RSpec, Capybara, Rubocop, Capistrano, Unicorn, Puma, Elastic Search 🔧Databases: PostgreSQL, MySQL, SQLite3, Redis 📊 Web Servers: Apache, Nginx 💻JavaScript JavaScript, ES 6/7, React, Vue, Jasmine, Handlebars, JSX, SKIM 📈HTML/CSS HTML5, CSS3, SCSS, Bootstrap, HAML, SLIM 📡 VCS: Git (Github, Bitbucket) 🆙 If you are interested in discussing your project with me, make sure to click the 👉🟢INVITE🟢 button, and let’s talk 🤝 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: Ruby on Rails Development, Full-stack Web Development, MVC Architecture and RESTful APIs, Front-end Technologies (HTML5, CSS3, JavaScript), Responsive and Mobile-first Design, Database Design and Implementation (PostgreSQL, MySQL), User Authentication and Authorization, Integration of Third-party APIs, Deployment to Cloud Platforms (Heroku, AWS), Test-driven Development (TDD), Agile Methodologies (Scrum, Kanban), Version Control Systems (Git, GitHub), Project Management and Collaboration Tools (Jira, Trello), Documentation and Code Commenting Last updated: March, 2026

Senior iOS | Android | React Native | React JS | Node JS | Python | AI Development | UI/UX Design ✅ High-Quality Work ✅ Cost-Efficient Services ✅ 8 Years Of Experience ✅ Long-term working relationship ✅ Fluent English Verified Having more than 8 years of strong knowledge of iPhone - Android- React Native (Swift, SwiftUI, Objective C, Android, Java, iOS SDK) Mobile app development. I am a specialist in backend development using Python (Flask), AWS (EC2, S3, RDS, IoT Core), Firebase, and RESTful web services, with experience in building scalable and real-time systems. AI-Powered Full-Stack Developer | Python, Lovable.dev, Cursor AI, Claude, AI Automation, Chatbot & AI Agent Development | Next.js, GPT-5, Supabase Technical Skills ============= - AI Development: Lovable.dev, Cursor AI, Claude AI, GPT-4o - Python: Flask, Django, REST APIs, WebSockets, MQTT - IOS: Swift, Objective-C - Android: Android, Java - Hybrid: React Native - JS: React JS, Node JS - Native Mobile app - Also expert in Firebase, Aws, setup server - MVVM (Model View ViewModel) / MVP (Model View Presenter) / MVC More Specific Expertise: ================== - E-commerce apps - Healthcare/ Meditation apps - Financial Apps with Blockchain technology - Social/ dating apps - Taxi Booking apps - Event-based apps - Live media streaming - Fitness sector apps - Geo-Location-related app - Instant messaging apps - Push Notification service - Creating SDK and Framework - Photo filter-related apps - Wearable apps - Extensive web server apps - Custom Keyboard apps - Stripe gateway - CI/CD - Fastlane - GitHub actions - FFMPEG (Create Video from Photos and music) I will follow an agile methodology and I will do weekly scrum meetings as well as daily updates Additional ======= - Cursor AI - Claude AI - Lovable.dev - Git - Svn - Bitbucket - TestFlight - Jira - Firebase Crashlytics - Asana - Trello I am looking forward to exploring and achieving more opportunities on Upwork.

Senior Solution Architect with 13+ years delivering enterprise Microsoft 365, SharePoint, Power Platform, and AI-powered systems. 100% Job Success Score. $50K+ earned on Upwork. I spent 6 years onsite in the USA as Enterprise Architect working with Fortune 500 clients through Accenture's Avanade unit — Cardinal Health, Barclays, Grant Thornton. Prior to that I spent 8.5 years as Lead Architect at a US-based healthcare MNC (Somerset, NJ) building enterprise platforms across North America, Europe, Japan, and Australia. I've conducted Microsoft 365 and SharePoint workshops across 40+ countries. One of my intranet builds was nominated by the client for an IABC award for best implementation in Atlanta, USA. I currently manage concurrent client projects at SwiftinIT across healthcare, construction, legal, and professional services clients globally, and am building a production multi-tenant healthcare AI platform using Node.js. What I deliver: Microsoft 365 & SharePoint — SPFx custom web parts (React/TypeScript), hub site architecture, document management, permissions, governance, and migrations from SharePoint 2010/2013/2016 to modern SPO. Power Platform — Power Apps canvas and model-driven apps, Power Automate complex approval flows with error handling and audit logging, Power BI dashboards, Copilot Studio agents. AI & Automation — Claude API, Azure OpenAI, Mistral agents, RAG pipelines, AI Builder document processing, HIPAA-compliant healthcare AI workflows. I use Claude Code, Cursor, and GitHub Copilot daily. Full Stack — React, Next.js, Node.js, ASP.NET Core, C#, PostgreSQL, SQL Server, Azure, AWS. Healthcare AI — medical imaging analysis, clinical documentation automation, FHIR R4 integrations, multi-tenant SaaS architecture. Certifications: Microsoft 365 Certified | TOGAF 9 Foundation | Cornell University | Microsoft Certified Professional

I am a Solution Architect and Full-Stack Engineer with 22+ years of experience building SaaS platforms, healthcare systems, and complex workflow solutions. Example: Architected and built a multi-tenant healthcare practice management system supporting patient intake, scheduling, lab integrations, and RCM workflows. What I Help Healthcare and SaaS Clients Build: • Healthcare SaaS Platforms – practice management systems, patient portals, telehealth workflows • Multi-Tenant SaaS Applications – scalable dashboards, admin portals, workflow automation • AI-Enabled Product Features – document processing, AI agents, automation pipelines • Integration Platforms – EHR integrations, third-party APIs, and CRM systems • Data-Driven Dashboards – analytics, reporting, operational dashboards Over the past decade, I have worked extensively in healthcare, developing systems such as: • Practice management platforms • Patient intake and scheduling systems • Lab integrations and patient portals • Revenue cycle management (RCM) workflows • EHR integrations with systems such as AthenaHealth, DrChrono, Waystar, and TriZetto • Healthcare document processing and fax automation systems Many of these platforms required HIPAA-sensitive data handling, complex business logic, and secure multi-tenant architectures. Core Expertise • SaaS Architecture & Multi-Tenant Systems • Healthcare Technology & Workflow Automation • AI Integration (OpenAI / Claude / document processing / Azure AI Foundry / AI Agents / Agno) • API Integrations & Backend Architecture • Full-Stack Development (React / Python / Node / Java / Spring) • Cloud Platforms (AWS / Azure / GCP / scalable SaaS infrastructure) Technologies • React · Next.js · Node.js · Python · Java · Spring Boot • PostgreSQL · MySQL · MongoDB • Supabase · REST APIs · Cloud integrations Certifications • TOGAF 9.1 Certified Enterprise Architect • Sun Certified Developer for Java Web Services (SCDJWS) • Sun Certified Java Programmer (SCJP)

In 10+ years, I have shipped products used by real businesses across AI automation, SaaS platforms, mobile apps, and enterprise integrations. ➝ Built an enterprise AI agent orchestration platform supporting GPT-4o, Claude, and Gemini with real-time monitoring, governance controls, and automated workflows across Marketing, HR, Supply Chain, and Customer Success. ➝ Built production n8n and Make automation systems connecting Xero, Shopify, CRMs, and third-party APIs with webhook-driven workflows, idempotency engines, and zero-error track records since deployment. ➝ Built multi-tenant SaaS platforms with schema-based data isolation, RLS policies, role-based access control, Stripe subscription billing, and full admin dashboards running in production. ➝ Integrated OpenAI, Claude, Azure OpenAI, and LangChain into real products, building AI agents, RAG pipelines, document processing systems, and agentic voice workflows using Retell.ai. ➝ Engineered custom NLP engines with 93.3% entity accuracy, sub-20ms responses, and scalable processing across 500+ products in a 5-step state machine. ➝ Developed React Native and Flutter apps with real-time features, third-party payments, and map integrations, delivered simultaneously on iOS and Android with 100k+ combined users. ➝ Built and integrated complex third-party systems including DocuSign contract workflows, IMAP email ingestion, Xero accounting automation, government compliance APIs, G2A catalog sync, and multi-system automation pipelines. ➝ Worked across SaaS, healthtech, logistics, e-commerce, sports, fintech, real estate, and AI automation, adapting quickly to domain requirements without hand-holding. ➝ Maintained a 100% Job Success Score with Top Rated Freelancer, across 150+ completed Upwork projects with long-term client relationships and on-time delivery. My stack covers the full product: ➝ AI Automation & LLM Integrations • OpenAI, Claude, Gemini API, LangChain, Pinecone, FAISS, RAG Architecture • AI Agents, n8n, Make, Zapier, Retell AI Voice Agents, Workflow Automation ➝ Frontend Development • React, Next.js (App and Pages Router), Vue.js, TypeScript • Tailwind CSS, shadcn/ui, Redux, React Query, Framer Motion ➝ Backend Development • Node.js, NestJS, Express.js, Python, Django, FastAPI, Flask • Supabase, Firebase, REST APIs, GraphQL • WebSockets, Socket IO, JWT and OAuth ➝ Mobile Development • React Native (Expo & CLI), Flutter • Real-time chat & video (Twilio, Agora, WebRTC) • Stripe, Maps, Push Notifications ➝ Database & Cloud • PostgreSQL, MySQL, MongoDB, Redis • AWS (S3, EC2, Amplify), Google Cloud I work best with founders and technical leads who need one reliable engineer to own the build end-to-end. I communicate clearly, flag blockers early, and treat your deadline as mine. Send me a message with your requirements, and I will outline your technical roadmap within hours. Bhavin Sen

* Top AI Integration Specialist on Upwork can build your AI Integration or Web App MVP in less than two weeks. Completed 300+ projects and over 1 Million Dollars in project size. My name is Wassim, and I have over 20 years of professional experience in web development. Our clients range from single entrepreneurs to small, medium, large, and Fortune 500 companies. I believe that building a successful application starts with understanding the client’s needs. Most developers jump straight to the technical side, while I prefer to research the best possible implementation to develop a solution for you. This approach has saved my clients and me tremendous time and effort, and has led to much better results. I work with numerous technologies and programming languages. I look forward to meeting you and learning more about your business in order to help you achieve your goals. ## Skills Summary AI & Machine Learning Integration: OpenAI API, Anthropic Claude, Prompt Engineering, Vector Databases, AI Chatbots & Conversational Engines, AI Voice Receptionists, AI Knowledge Bases. Web & Mobile Development: Full-Stack Web Development, MVP Development (Under 2 Weeks), Mobile Applications, Custom Customer Portals, SaaS Development, API Development. Cloud & Infrastructure: AWS Deployment, Google Cloud Platform (GCP), Server Architecture, Google Workspace & Microsoft 365 Administration. Business Systems & Automation: Lead Generation & Tracking Systems, Point-of-Sale (POS) Integrations, Workflow Automation, Government & Compliance Filing Systems, Messaging Integrations (e.g., Microsoft Teams). Project Management & Workflow: Agile Methodologies, Asana, Kanban, AI-Assisted Development (GitHub Copilot, Cursor).

AI Powered ✅ Proven Client Success | ⭐ Top-Quality Solutions | ⚡ Fast & Reliable Execution | 📞 Professional Communication & Support | I deliver scalable, high-performance solutions across modern technology stacks, specializing in Full-Stack Development, Enterprise System Architecture, AI Integrations, and Workflow Automation. I build custom Power Apps solutions integrated with Dataverse, SharePoint, Microsoft Teams, and Microsoft Entra ID, while designing responsive user experiences and automating business processes using Power Automate for secure web, desktop, and mobile environments. 🛠️ 𝘾𝙤𝙧𝙚 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚 🔹 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: GPT-4, ChatGPT API, Semantic Kernel, AWS BedRock, AI Workflow Automation, OCR Processing, Intelligent Document Handling, LLM Integrations, AI-Powered SaaS Solutions, 🔹 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: C#, VB, JavaScript, Python, PowerShell 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: .NET Core, ASP.NET MVC, Blazor, Identity Server, Web API, Entity Framework, Razor View, Azure DevOps 🔹 𝗣𝗼𝘄𝗲𝗿 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 & 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺: Power Automate, Power Apps, Power BI, Office 365, Microsoft Teams, SharePoint Integration 🔹 𝗖𝗠𝗦 & 𝗘𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲: Umbraco, Sitefinity, Kentico, nopCommerce 🔹 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 & 𝗨𝗜: Angular (1.x–19), React.js, Next.js, Vue.js, Blazor, Node.js, Tailwind CSS, Material Design 🔹 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆: Azure AD Integration, JWT Authentication, OAuth 2.0, OpenID Connect, Identity Server, Role-Based Access Control (RBAC), SSO. 🔹 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 & 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀: MSSQL, MySQL, PostgreSQL, MongoDB, CosmosDB, DynamoDB, Power BI 🔹 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Microsoft Azure, AWS (Lambda, Amplify), CI/CD Pipelines, Cloud-Native Deployments 🔹 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 & 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗧𝗼𝗼𝗹𝘀: FHIR, ETL Pipelines, Telerik, DevExpress, Highcharts, Twilio, API Integrations 🔹 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝘃𝗲 & 𝗦𝗘𝗢-𝗙𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝗗𝗲𝘀𝗶𝗴𝗻: HTML5, CSS3, Bootstrap, Tailwind CSS I am committed to professionalism, best practices, and delivering innovative solutions tailored to your business needs. Let's build something great together! 🚀