Hi, I'm Hasitha, a software engineer having extensive experience of over 7 years in software and web development, server administration and also a strong communicator with the ability to convey ideas clearly with an emphasis on client satisfaction. My specialized areas are as follows. ◈ Server-related tasks ✅ Troubleshooting issues related to web servers (Apache, NGINX). ✅ Installation/renewal of SSL certificates. ✅ Troubleshooting Linux server-related issues. ✅ Configuration of LAMP/LEMP stack. ✅ Fixing 401, 403, 404, 502, and 503 HTTP errors. ✅ Configuration of Webmin, Virtualmin, WHM, and cPanel. ✅ Troubleshoot SSH access-related issues. ◈ WordPress websites ✅ Migration of WordPress websites from one hosting to another ✅ Troubleshooting WordPress website-related issues (Critical errors, outgoing emails not working, etc.). ✅ Set up SMTP email configurations. ✅ WordPress core, themes, and plugin updates. ✅ Payment gateway integrations. ◈ Email related configurations ✅ Google Workspace email set up. ✅ SMTP configurations for different web applications. ✅ Configuration of third-party SMTP providers such as AWS SES, SendGrid. ◈ DNS related tasks ✅ Configuring DNS (adding/modifying DNS records, updating nameservers) in different domain providers (GoDaddy, Namecheap, Google Domains, Bluehost, DreamHost, etc). ◈ Websites/Web application development ✅ Fix errors related to websites/web applications built using HTML, CSS, JavaScript, PHP, and MySQL. ✅ Build web applications using the PHP Laravel framework. ✅ Development of backend APIs using Java Spring Boot framework. ✅ Third party API integrations. ◈ Infrastructure management in different Cloud Computing Platforms ✅ Amazon Web Services (AWS) ✅ DigitalOcean ✅ Google Cloud Platform (GCP) ✅ Microsoft Azure If you're looking for a dedicated and experienced developer/server admin who can deliver high-quality code and drive successful project outcomes, I'd love to chat with you. Let's work together to turn your vision into reality!

I'm a senior full-stack engineer with 𝟏𝟓+ 𝐲𝐞𝐚𝐫𝐬 of experience, including nearly a decade building at scale for 𝐀𝐩𝐩𝐥𝐞 and 𝐀𝐦𝐚𝐳𝐨𝐧. Unlike most generalists, I also build production-grade AI features. That combination is rare, and it's why clients hire me. Whether you need a scalable web application, a complex backend system, or AI/LLM capabilities woven into an existing product, I can own it end-to-end, architecture through deployment, frontend through infrastructure. 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 React + TypeScript frontends with clean component architecture, real-time updates, secure auth flows, and performance tuned for real users. Java backends (Spring Boot, WebFlux, reactive systems), Node.js/TypeScript APIs, REST & GraphQL (Apollo), microservices design, and distributed data layers across DynamoDB, SQL, and NoSQL. I build applications that are testable, maintainable, and designed for scale from day one, not patched together after the fact. 𝐀𝐈 & 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 This is where I pull ahead. When a project calls for intelligence, a chatbot, a knowledge assistant, a RAG pipeline, automated workflows, I don't hand it off to a separate AI contractor. I build it myself, integrated cleanly into the same stack. GPT/Gemini integrations, retrieval-augmented generation, context-aware chat systems, prompt pipeline design, structured output with validation, and hallucination mitigation. AI that's engineered into the product, not bolted on. 𝐂𝐥𝐨𝐮𝐝 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 AWS-native architectures, Kubernetes, Helm, Docker, CI/CD pipelines, and production observability with Prometheus, Grafana, and Datadog. SLO-driven monitoring and reliable deployment workflows. Features don't matter if they're not up, I make sure they stay up. 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐜𝐡𝐨𝐨𝐬𝐞 𝐦𝐞 𝐨𝐯𝐞𝐫 𝐨𝐭𝐡𝐞𝐫 𝐬𝐞𝐧𝐢𝐨𝐫 𝐝𝐞𝐯𝐬:: Most full-stack engineers can't touch AI. Most AI freelancers can't architect real systems. I do both, and I've done it inside two of the most demanding engineering organizations in the world. 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐫𝐞𝐬𝐮𝐥𝐭𝐬: At Apple, built a React + TypeScript platform for large-scale test execution, developed an AI-powered internal support chatbot, and improved system observability, cutting incident resolution time by 30% and reducing deployment time by 30%. At Amazon, migrated critical systems from Oracle to DynamoDB, reduced infrastructure maintenance by 20%, designed resilient AWS-native services, and helped launch Amazon in new international markets. 𝐈'𝐦 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐟𝐢𝐭 𝐢𝐟 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝: A senior engineer who can own your product end-to-end. A full-stack application built properly, architecture-first, scalable, maintainable. AI or LLM features added to an existing product without breaking what's already there. A complex backend, a polished frontend, or both. A technical partner who ships production systems, not prototypes. 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤: Architecture-first. MVP fast, production-ready fast. Clean, testable code. Clear communication. Built for scale from day one. I don't build throwaway demos. I build systems that survive production, with or without AI. Let's talk.

I'm a Shopify developer with over 10 years of experience helping ecommerce brands fix what's actually costing them sales slow performance, poor UI/UX, and conversion leaks that simple design changes can't solve. My focus is Shopify store development, store optimization, conversion rate optimization, speed optimization, Shopify Plus builds, subscriptions, and Klaviyo integrations. I also support WordPress and WooCommerce stores when they need ongoing development or migrations. I provide a 100% guarantee on the quality and reliability of my work. With 250+ completed projects and $200K+ earned on Upwork, I've worked with startups, growing DTC brands, and established ecommerce businesses across different industries. It's important to me to build long-term relationships with my clients, so I'm primarily looking for long-term projects. I'm flexible with my working hours and happy to discuss your project whenever works for you.

Most developers build features. I build systems that survive scale. Over the past 6 years I have shipped production ready platforms across fintech, eCommerce, education, and enterprise not as a hired hand executing specs, but as a technical partner who owns the outcome from architecture decision to post launch performance. What I Actually Deliver ↗ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 React, Next.js, Vue, Angular, React Native, Flutter pixel perfect frontends backed by fast, reliable APIs. I build for performance, Core Web Vitals, and SEO from day one, not as an afterthought. ↗ 𝗔𝗜 & 𝗟𝗟𝗠-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀 I integrate OpenAI, LangChain, RAG pipelines, and vector databases (Pinecone, Weaviate) into real products not demos. Think intelligent search, AI-assisted workflows, document processing, and custom AI agents built to production standards. ↗ 𝗥𝗼𝗯𝘂𝘀𝘁 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 Python (FastAPI, Flask), Java (Spring Boot), Node.js (NestJS) I design REST and GraphQL APIs and microservice architectures that handle real traffic without brittle single points of failure. ↗ 𝗖𝗹𝗼𝘂𝗱, 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗗𝗮𝘁𝗮 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 AWS, GCP, Azure, Docker, Kubernetes, CI/CD pipelines. PostgreSQL, MongoDB, Redis, DynamoDB. I build and automate the infrastructure so your team doesn't inherit technical debt. ↗ 𝗪𝗲𝗯𝟯 & 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 (𝗪𝗵𝗲𝗻 𝗜𝘁'𝘀 𝘁𝗵𝗲 𝗥𝗶𝗴𝗵𝘁 𝗧𝗼𝗼𝗹) Solidity smart contracts, Ethereum dApps applied where blockchain genuinely adds value, not as a buzzword. 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 Before writing a line of code, I make sure we agree on scope, success metrics, and delivery milestones. You get weekly progress updates, async-friendly communication, and a clean handover with documentation. No surprise delays, no scope-creep ambushes. I have delivered MVPs in weeks and scaled those same platforms to handle millions of requests because scalable architecture is baked in from the start, not bolted on later. 𝗔 𝗙𝗲𝘄 𝗧𝗵𝗶𝗻𝗴𝘀 𝗧𝗵𝗮𝘁 𝗦𝗲𝘁 𝗠𝗲 𝗔𝗽𝗮𝗿𝘁 • Top Rated Plus consistently in the top tier of Upwork's global talent • AI-enhanced development workflows that cut delivery time without cutting corners • Experience across the full product lifecycle: MVP → growth → scale • Clear, proactive communication across time zones If you need a developer who treats your product like their own and delivers systems built to last let's talk.

I'm a seasoned full-stack developer with over 12 years of professional experience in designing and developing robust, scalable solutions across web, mobile and database platforms. I’ve successfully delivered complex projects for clients in both government and public domains, with a strong focus on security, performance and maintainability. My core competency skills are as following: Languages & Frameworks: Java, Python (Flask), Ruby on Rails (RoR), PHP, JavaScript (Node.js, React.js) Database Expertise: MySQL, PostgreSQL, Oracle, MongoDB, MariaDB CMS & E-Commerce: WordPress, WooCommerce, Drupal, Magento Mobile & Web Technologies: HTML5, CSS3, Responsive Design API Integration & Backend Services: REST APIs, microservices, backend architecture

🔸 Mobile App Developer & CTO trusted by businesses to deliver products that survive production 🔸 10+ years of hands-on execution building scalable, high-performance mobile applications used by real users, not demos. I step in when quality, architecture, and long-term growth are needed. 🔸 100+ digital products launched 🔸 100% Job Success on Upwork 🔸 I am a CTO and hands-on mobile app developer leading ORIL, a senior engineering team focused on delivering high-performance, secure, and scalable mobile solutions. If you are looking for a reliable mobile developer or an experienced react native developer, you are working with a team that understands production, performance, and long-term growth. Our Core Strength: Mobile App Development We specialize in Mobile App Development for iOS and Android, with deep expertise in react native to deliver efficient cross-platform solutions without compromising native performance or user experience. As a mobile app developer team, we build production-ready applications used by real users on real devices, not prototypes or proof-of-concepts. Every mobile developer on our team has shipped apps to the App Store and Google Play. Every react native developer understands how to balance cross-platform efficiency with native quality. I also collaborate with teams as a Mobile App Developer and React Native Developer, ensuring that mobile designs are implemented efficiently and accurately. Working alongside mobile developer engineers this collaboration guarantees that every mobile product performs reliably on iOS and Android, meets user expectations, and is production-ready. What we deliver: 🔸 React Native App Development for iOS & Android 🔸 Native iOS Development and Kotlin-based Android apps 🔸 Cross-platform and native solutions led by senior engineers 🔸 Backend for mobile apps: Node.js, Java, secure and scalable APIs 🔸 AI-powered features and chatbots for mobile products Our Team & Approach Our team delivers end-to-end mobile solutions combining native iOS development, Kotlin-based Android apps, and cross-platform architectures. Every project is guided by a strong full stack developer mindset, ensuring the mobile application, backend services, and integrations operate as a single, reliable system. The team includes senior android developer specialists who optimize native features, iOS engineers who ensure App Store quality, and experienced react native developer experts who deliver cross-platform efficiency. When project scope requires broader technical coverage, we bring in flutter developer specialists for alternative cross-platform needs, web developer experts for admin dashboards and landing pages, or python developer professionals for backend systems, data processing, and AI integrations. Why Choose a Mobile App Developer with Production Experience As a mobile app developer with over a decade of experience, I've seen what separates successful launches from failed ones. The difference isn't just technical skill, it's understanding production constraints, user behavior, battery optimization, App Store guidelines, and long-term maintenance. Whether you need a mobile developer to rescue a struggling project, a react native developer to build from scratch, an android developer to optimize performance, a full stack developer to connect mobile with backend systems, or a web developer to build companion dashboards—I bring both strategic oversight and hands-on execution to ensure your product thrives in the real world. Industries we work with: FinTech, Finance & Banking, Healthcare, HealthTech, Real Estate, Property Management, Marketplaces, Logistics, Transportation, Automotive, Retail, Media, Education, Fitness, Travel, Hospitality, Construction, and more. If you need a mobile app developer, a trusted mobile developer, or a full team led by an experienced react native developer to build fast, scalable, and production-ready mobile applications, let’s connect and discuss how to turn your idea into a successful product. 🔸 Let's Build Your Mobile Product! 🔸

⚡ 12+ Years Experience | ⚡ 19000+ Working Hours Expert in Front-end/Back-end web Applications Development, website design and web app development using a variety of web technologies such as Nodejs, Vuejs, Angular, React, WordPress, Joomla, Shopify, Codeigniter, Laravel, Php, MySQL, Html, Css, Ajax, Jquery, bootstrap, UI Having Experience in different Project Management Tools like Asana, Basecamp, GitHub, Trello, Jira Over the past 12 years, I've had the pleasure of working in a diverse range of verticals like eCommerce, social-networking, real estate, healthcare, media and entertainment, retail, automotive, education, financial services, insurance, travel and logistics, Group buying like Group-on, Penny Auction etc. ✨ Why Choose Me? ✨ 🚀 Technical Expertise: With in-depth knowledge of PHP, HTML, CSS, and JavaScript frameworks like React, Vue and angular, I possess the technical skills to tackle any development challenge and provide scalable solutions. 🚀 Attention to Detail: I pay meticulous attention to detail, ensuring pixel-perfect designs, responsive layouts, and seamless navigation for an exceptional user experience. 🚀 Timely Delivery: I am committed to delivering projects on time without compromising on quality. I understand the importance of meeting deadlines and strive to exceed client expectations. 🚀 Effective Communication: I believe that clear and open communication is the key to successful collaborations. I am always available to discuss your project requirements, provide regular updates, and address any concerns. If you are looking for a dedicated and talented full stack developer to bring your website vision to life, I am here to help. Let's work together to create a compelling online presence and drive your business growth! Thanks for checking out my profile and I look forward to speaking with you soon.

Senior Flutter & Node.js Developer | 5+ Years Experience | Full-Stack Architect Overview Hi, I’m Usama Mukhtar, a Software Engineer and a certified Flutter and Node.js developer with over 5+ years of hands-on experience. I specialise in mobile app development using Flutter and backend development with Node.js. I help businesses transform ideas into user-focused, scalable, and high-performance digital products by using modern technologies and efficient development practices. Trusted By: Over 100 global clients across healthcare, fintech, e-commerce, POS systems. Success Rate: 95% client retention with more than 174 projects successfully delivered on time. Commitment: I offer a free 60-minute consultation to understand your requirements and align the technical strategy with your business goals. 🟢Technical Skills Strong experience with third-party libraries and RESTful APIs Skilled in Android and iOS development Expertise in state management and app architecture in Flutter Proficient in Firebase (authentication, real-time DB, Firestore, cloud functions) Experience with push notifications and in-app purchases Integration of payment gateways and subscription models Google Maps and location-based services API integration for real-time data handling and synchronisation Strong command of Dart Additional experience: Java, Kotlin, SQLite, HTML, JavaScript, CSS3, Git 🟢Soft Skills Excellent problem-solving abilities Strong communication and teamwork Professional documentation practices Responsible, reliable, and legally compliant Creative and proactive approach to resolving issues Ability to clearly understand and deliver business requirements 🟢Roles and Responsibilities Design, develop, test, and deploy mobile and web applications Collaborate with UI/UX designers, QA teams, and stakeholders Take ownership of delivering high-quality and user-friendly products Provide continuous support, updates, and maintenance Stay current with modern technologies and trends Optimize workflows and write clean, reusable code Build Flutter applications for both Android and iOS Follow company standards, best practices, and guidelines Develop reusable UI components for efficient scalability 🟢Conclusion With strong expertise in Flutter, Node.js, and full-stack development, I focus on delivering reliable, high-quality, and scalable solutions. I have hands-on experience with Firebase, push notifications, in-app purchases, payment integrations, maps, and API-based applications. Client satisfaction and clean, efficient code are always my top priorities. I am confident that I can deliver the results you need for your project.

I’m a Full-Stack Developer & AI Engineer (4+ years) with a track record of building scalable mobile, web, and desktop applications and integrating AI-driven automations, chatbots, and agentic RAG systems that help businesses innovate, optimize, and grow. I specialize in designing and deploying solutions that cut across the entire stack from frontend and mobile apps to backend systems, databases, and cloud infrastructure always with an emphasis on scalability, quality, and real business impact. My work spans AI agents, RAG bots, computer vision solutions, NLP pipelines, and process automations that turn complex problems into seamless user experiences. Core Expertise - Mobile Development: Flutter, React Native, Kotlin, Swift, Java - Frontend: React.js, Next.js, Vue.js, Angular - Backend: Node.js, ASP.NET, Java, Dart - AI & ML: OpenAI APIs, Anthropic APIs, LLM Orchestration, Agentic RAG, Chatbots, Computer Vision, TensorFlow, PyTorch - Databases: MongoDB, Firebase, Supabase, Neo4j, SQL (Postgres/MySQL) - Cloud & DevOps: Docker, Kubernetes, AWS, GCP, Azure, Digital Ocean, CI/CD pipelines, GitHub Actions - Product & Design: Figma, UI/UX prototyping, software architecture, requirements engineering What I Deliver - AI consulting & integration strategy - Cross-platform mobile apps (iOS & Android) - Web and desktop applications - AI-powered chatbots, RAG agents, and intelligent automations - Backend architecture & database design - MVPs & proof-of-concepts for startups - Cloud deployment & DevOps pipelines - Post-launch scaling, optimization & support Why Work With Me - Hands-on experience with the latest AI + full-stack tools - Proven ability to bridge AI research with real-world products - Strong problem-solving mindset, from algorithms to business use-cases - Reliable: 12/7 availability and ongoing support - A one-stop partner for AI, backend, frontend, and mobile development Mission To build scalable, AI-enabled products that help startups and enterprises transform bold ideas into impactful solutions. Keywords: Artificial Intelligence, Machine Learning, AI Agents, Agentic RAG, Retrieval Augmented Generation, RAG bots, Chatbots, Voicebots, OpenAI, Anthropic, Claude, GPT, LLM Orchestration, Full-Stack AI, Computer Vision, Flutter, React Native, Node.js, React.js, Next.js, ASP.NET, Python, TensorFlow, PyTorch, MongoDB, Firebase, Neo4j, SQL, Docker, Kubernetes, AWS, Google Cloud, Digital Ocean, CI/CD, GitHub Actions, NLP, AI Architect, AI Consultant, MVP, SaaS, Microservices, Cloud Infrastructure, API Development, Software Architecture, UI/UX Design, Product Development, Cross-Platform Apps, Backend Systems, DevOps, AI Strategy, Business Automation, AI Integrations, NLP, Vision AI, Speech AI

I help enterprises, founders & funded startups building scalable production grade MVPs, multi-tenant SaaS platforms, AI SaaS, web, mobile, desktop & software applications, internal tools, business process automation systems, data-intensive backend systems & cloud-native platforms designed for scalability, reliability, security, maintainability, observability, and long-term growth. I’m 𝐓𝐨𝐩 𝟏% Senior Full Stack AI & Software Developer (expert vetted by Upwork) with 18 years of ‘traceable experience’ architecting, developing & deploying custom production-grade software platforms, including custom AI-powered SaaS apps I serve as a strategic ‘technology partner’ throughout the SDLC: from product requirements mapping, system architecture design, database design, API strategy, AI integration, and infrastructure planning to front-end & back-end development, full-stack development, cloud deployment, production launch, and ongoing support. I’ve delivered 200+ custom software solutions for Fortune 500 companies, US enterprises, founders, and funded startups across 38 countries, with a strong track record of client satisfaction. My work usually starts with building an MVP from scratch, scaling a product with traction, modernizing a legacy system, rescuing an unstable platform, improving performance, or integrating AI/new product capabilities without disrupting core operations. From there, I convert business goals, ROI expectations, user workflows, compliance needs, budget, and timeline into a development plan covering scope, milestones, architecture, integrations, testing/UAT, and rollout. For founders and funded startups, I help turn early product ideas, business models, and ROI expectations into a focused MVP scope, scalable architecture, launch roadmap, and growth plan without overbuilding too early. I design system, cloud, data, AI, SaaS, security, and integration architectures based on product stage, scalability needs, compliance requirements, operational complexity, and cost. My approach covers practical architecture decisions, secure integrations, tenant isolation, data modeling, AI-ready data foundations, production deployment, observability, reliability planning, and long-term maintainability. Industry & domain experience: I've built & modernized software architecture across Healthcare, EHR, EMR, HIPAA, FinTech, Finance, Banking, Insurance, Sales & Marketing, Education, Legal, Manufacturing, Chemical, Media, Real-estate, Supply-chain, Logistics, Construction, Automotive, Retail, AI SaaS MVP, B2B SaaS, eCommerce, iGaming, Marketplaces,delivery, booking, listing, mobile apps, EdTech, LMS, CRM, ERP, Business process automation, multi-tenant SaaS Platforms Whether you need a skilled development partner to build custom software, integrate AI, modernize legacy systems, or design scalable architecture for long-term growth, feel free to reach out! Our Development Team & Tech Stack: Frontend Dev: React, Next.js, TypeScript, JavaScript, Tailwind CSS, shadcn/ui. Mobile & Desktop Dev: React Native, Flutter, Swift, Kotlin, Electron Game Dev: Unity, C#, Unreal Engine 5, C++, Blueprints, Photon, PlayFab, Roblox Studio, Luau Backend Dev: Node.js, NestJS, Express.js, Python, FastAPI, Django, Java, Spring Boot, Golang APIs: REST, GraphQL, WebSockets, gRPC, OpenAPI, Swagger. Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, Supabase, Firebase Firestore, RDS, Elasticsearch, OpenSearch, Amazon S3. Data Engineering: SQL, Pandas, NumPy, Apache Kafka, RabbitMQ, Apache Airflow, dbt, Apache Spark, Snowflake, BigQuery, Amazon Redshift AI & ML: OpenAI, Claude, Gemini, Llama, Mistral, PyTorch, TensorFlow, Scikit-learn, XGBoost, LightGBM, Hugging Face Transformers, LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, DSPy Vector Search: pgvector, Pinecone, Weaviate, Qdrant, FAISS, Chroma Computer Vision, NLP & AI Voice: OpenCV, YOLO, spaCy, Whisper, Deepgram, ElevenLabs Cloud / DevOps: AWS, GCP, Azure, Docker, Kubernetes, Terraform, GitHub Actions, GitLab CI/CD, Vercel, Cloudflare, Nginx Security / Auth: OAuth2, OpenID Connect, Auth0, Clerk, Okta, JWT, SAML, Vault, AWS Secrets Manager Testing / Monitoring: Jest, PyTest, JUnit, Playwright, Cypress, Postman, Datadog, Grafana, Prometheus, Sentry, OpenTelemetry, CloudWatch Compliance: HIPAA, SOC2, PCI-DSS, GDPR, ISO 27001, NIST, HL7/FHIR, KYC/AML, PII/PHI Software Development Services & Technical Capabilities: Full Stack Development, Software Development, AI Development Team, Front & back end dev, Artificial intelligence, Machine Learning, Deep Learning, Web Development, Web Application, Mobile App, AI native web development, API Integration, Full Stack developer, React & Python developer, AI developer, Web, Mobile & Software Dev, AI SaaS Dev, AI/ML, NLP, LLM, OpenCV, Algorithm, Chatbot, Developer, AI Integration, AI Consultant, OpenAI, AWS, AI Agent Developer, Software Architecture & Design, AI Model Integration, Database Architecture, Solution Architecture