I run an indie portfolio of 11 mobile apps with 300K+ users and 4.8-star average ratings. On Upwork I've earned $400K+ across 15 long-term contracts. 9+ years shipping native iOS, native Android, and Flutter. I took a break from Upwork to focus full-time on my own app portfolio, and I'm back taking contract work part-time, 15-20 hours a week. Most of my Upwork clients have come back for second and third projects. What I work with: - Native Android (Kotlin/Java) and iOS (Swift/SwiftUI/UIKit) - Flutter and React Native for cross-platform - Firebase, Supabase (backend, analytics, push notifications) - Subscriptions and payments (RevenueCat, StoreKit, Google Play Billing) - Backend when needed (Python, .NET, Go) - CI/CD and testing What sets me apart from most contractors here is product thinking. I run 11 of my own subscription apps in production, so I can tell you which features will actually move your metrics and which will waste your budget. Subscriptions, monetization, ASO, retention, analytics, localization. I run this experiment every week on my own portfolio, so I'm not guessing when I work on yours. If you need a mobile app built, fixed, or taken to the next level, let's talk.

I build systems that think. 🧠 Not chatbots. Not AI features glued onto broken products. But end-to-end systems where intelligence supports real operations. 🤝🏼 I’m Kemal - an entrepreneur and product systems architect, working at the intersection of mobile development, backend infrastructure, and AI integration. As the founder of ETREXIO, I work with startups and growing companies that: • Have users, revenue, or traction • Feel operational friction creeping in • Need systems that scale without everything living in the founder’s head How I help • Mobile app development (Flutter iOS & Android) 📱 • AI integration & automation 🤖 • System & product architecture ✍🏼 • Technical decision-making with long-term ownership in mind 🎯 I’ve co-founded and exited a B2B SaaS product and partnered with founders who needed execution, not theory. I don’t just advise - I design, build, and stay accountable for outcomes. If you’re looking for someone who understands products, systems, and AI as one whole, you’re in the right place 🫵🏼

🌟 100% Project Success 🌟 Top Rated Plus 🔥 Available for urgent WordPress fixes & after-hours work 🏕️ Independent freelancer — never outsourced, never an agency Hi, I'm Jessie. I'm a WordPress Developer and SEO Specialist with 13+ years of experience helping businesses build, fix, and grow their websites. I specialize in WordPress, WooCommerce, Beaver Builder, Advanced Custom Fields (ACF), Local SEO, Google Business Profile optimization, and website performance. Whether you need a brand-new website, a WooCommerce store, help fixing a broken site, or someone to rescue a project another developer abandoned—I can help. Many of my clients come to me after experiencing: ✔ Poor communication ✔ Missed deadlines ✔ Broken updates ✔ Slow websites ✔ Websites that don't generate leads I believe websites should do one thing: Help your business make more money. Not win design awards. Not impress other developers. Just generate more calls, leads, quote requests, and sales. Services WordPress Development • Custom WordPress websites • Website redesigns • Landing pages • Responsive/mobile-friendly development • Beaver Builder • Elementor • Divi • Astra WooCommerce • Online stores • Payment gateway setup • Shipping configuration • Product imports • Variable products • Checkout troubleshooting WordPress Support • Bug fixes • Plugin conflicts • Theme issues • White screen errors • PHP errors • Malware cleanup guidance • Website recovery SEO & Local SEO • Technical SEO • On-page SEO • Rank Math • Yoast SEO • Google Business Profile optimization • Local SEO strategy • Website speed optimization • Core Web Vitals Website Maintenance • Updates • Security • Backups • Hosting support • DNS changes • Domain transfers • Website migrations Clients describe me as someone who is: ⭐ Honest ⭐ Easy to communicate with ⭐ Fast to respond ⭐ Reliable ⭐ Focused on long-term solutions—not quick fixes If you're looking for someone who understands both the technical side of WordPress and the business side of getting customers online, I'd love to help. Let's talk. — Jessie Just some keywords: WordPress, WordPress Developer, WooCommerce, WooCommerce Developer, Beaver Builder, Elementor, Divi, Astra, Advanced Custom Fields, ACF, PHP, HTML, CSS, JavaScript, Responsive Web Design, Website Redesign, Website Design, WordPress Website, WordPress Development, WordPress Maintenance, WordPress Support, WordPress Bug Fix, Website Repair, Technical SEO, Local SEO, SEO, Google Business Profile, Google Business Profile Optimization, Google Maps SEO, Rank Math, Yoast SEO, Core Web Vitals, Website Speed Optimization, PageSpeed, Figma to WordPress, Website Migration, Hosting Migration, Domain Transfer, DNS, cPanel, SiteGround, Kinsta, WP Engine, Cloudflare, GoDaddy, Bluehost, SSL, Contact Forms, Gravity Forms, WPForms, MemberPress, LearnDash, Custom Post Types, CPT, CPT UI, Search & Filter, Accessibility, White Label WordPress, Small Business Websites, Contractor Websites, Landing Pages

I have over 15 years of experience in IT, starting my career as a software engineer and gradually transitioning into the field of data and artificial intelligence. Currently, my focus is on AI, machine learning, and intelligent systems, where engineering thinking is combined with a strong analytical approach. I have experience in developing complex systems, working with data, and building NLP and LLM-based solutions. Since 2017, I have been engaged in academic research as part of my PhD, focusing on text processing and data analysis. I have worked on AI-driven projects in the healthcare and finance domains, and have also contributed to an international research initiative, Pathogenomics & Biosecurity (University of Alaska Anchorage, Kyiv School of Economics), focused on genomics of emerging viruses, bioinformatics, and epidemiological monitoring systems for infectious diseases Skills & Interests Bioinformatics: Genomics, Metagenomics, RNA-seq, NGS, Sequence Analysis, Genome Annotation, AMR, Phage Biology, Biological Data Pipelines AI / Agents: Claude, OpenAI API, LangGraph, LangChain, Langfuse, LagSmith, Langfuse, AWS Bedrock, Vector DB ML / DL: PyTorch, TensorFlow, Pandas, Predictive Modeling, Regression Models, RAG, CAG, Embeddings Software Engineering: Python, Node.js, TypeScript , React, FastAPI, Django , REST, GraphQL, JWT, Auth0, Keycloak, Kafka, Celery Architecture: Microservices, Event-Driven Systems Databases: PostgreSQL, MongoDB, Redis, Elasticsearch, SQLAlchemy, Alembic, QLDB, Big Query, Dynamo DB, RDS Cloud: AWS, Azure, EC2, RDS, AWS Bedrock, Lex, Docker, LocalStack, Logging: DataDog, Grafana , Prometheus

Most AI projects die between the demo and the deploy. I work on the part after the demo: retrieval that has to be right, evals that gate the release, guardrails and the audit trail, cost per request. I've been the sole mobile/full-stack engineer on products that went from nothing to real users — React Native, Flutter, Expo, Vite, Express, Hono, MongoDB, PostgreSQL — so you're not waiting on five different people to ship one thing. WHAT I'VE BUILT → OneTake — mobile lead for a year. Every pivot, every weekend bug, handled. → Solas Compliance — policy-to-rules compliance review for finance and iGaming, with a full audit trail back to source clauses → Rayu — an AI nutritionist paired with a wearable, grounded in live health data → Palete, Sambad — AI agents running customer operations over WhatsApp and omnichannel inbox → Sajilo Sewa — Nepal's home-services marketplace, 50+ services → Flexera — connected fitness hardware + app AI WORK → RAG pipelines, eval suites that gate deploys, cost/latency budgets → Agents and internal workflows with typed tools, permissions, audit trails → OpenAI, Gemini, Claude API integration — production use, not demos → Claude Code, Codex — daily use STACK → Mobile: React Native, Expo, Flutter, Dart → Web: React, Vite, TypeScript → Backend: Express, Hono, Node.js → Database: MongoDB, PostgreSQL → Cloud: Firebase, AWS, GCP I reply within 12 hours. Scope is clear? I can usually start the same day. Drop me a message — glad to take a look at what you're building.

📱 Flutter Developer | Building Mobile Solutions That Scale ⭐⭐⭐⭐⭐ Whether you're a startup founder launching your first app, a business owner scaling your mobile presence, or a team building the next big platform, I bring the technical expertise to transform your vision into a high-performance, user-loved mobile application ready for the App Store. With over 6 years of hands-on Mobile development, I've delivered 15+ successful projects that don't just work—they drive real business results. I combine deep technical knowledge with exceptional communication skills, ensuring seamless collaboration from concept to launch. I'm committed to solving your toughest mobile challenges efficiently in these areas: 📱 𝐂𝐎𝐑𝐄 𝐅𝐋𝐔𝐓𝐓𝐄𝐑 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 • Flutter 3.x & Dart • Cross-platform iOS & Android development • Responsive web applications • Material Design & Cupertino widgets • Custom UI/UX implementation • Pixel-perfect designs 🏗️ 𝐒𝐓𝐀𝐓𝐄 𝐌𝐀𝐍𝐀𝐆𝐄𝐌𝐄𝐍𝐓 & 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄 • BLoC Pattern • Provider • Riverpod • GetX • Clean Architecture • MVVM • Repository Pattern • Scalable app structure for long-term maintainability 🔗 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 & 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍 • Firebase (Auth, Firestore, Cloud Functions, FCM, Analytics) • REST APIs • GraphQL • WebSocket for real-time features • Third-party SDK integration • API design & implementation 💳 𝐏𝐀𝐘𝐌𝐄𝐍𝐓 & 𝐌𝐎𝐍𝐄𝐓𝐈𝐙𝐀𝐓𝐈𝐎𝐍 • Stripe • PayPal • In-App Purchases (iOS & Android) • Subscription models • Payment gateway integration • Secure transaction handling ⚡ 𝐏𝐄𝐑𝐅𝐎𝐑𝐌𝐀𝐍𝐂𝐄 𝐎𝐏𝐓𝐈𝐌𝐈𝐙𝐀𝐓𝐈𝐎𝐍 • App performance profiling & optimization • Memory management • Lazy loading & caching strategies • Reducing app size • Smooth 60fps animations • Offline-first architecture with local storage 💾 𝐃𝐀𝐓𝐀𝐁𝐀𝐒𝐄 & 𝐒𝐓𝐎𝐑𝐀𝐆𝐄 • SQLite • Hive • Drift (Moor) • SharedPreferences • Secure storage • Cloud Firestore • Realm • Data encryption & security best practices 🔔 𝐑𝐄𝐀𝐋-𝐓𝐈𝐌𝐄 𝐅𝐄𝐀𝐓𝐔𝐑𝐄𝐒 • Push notifications (FCM, OneSignal) • Live chat & messaging • Real-time data sync • WebSocket connections • Socket.io integration 🧪 𝐓𝐄𝐒𝐓𝐈𝐍𝐆 & 𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐀𝐒𝐒𝐔𝐑𝐀𝐍𝐂𝐄 • Unit testing • Widget testing • Integration testing • Automated testing with CI/CD • Code coverage • Comprehensive testing before deployment 🚀 𝐃𝐄𝐏𝐋𝐎𝐘𝐌𝐄𝐍𝐓 & 𝐃𝐄𝐕𝐎𝐏𝐒 • App Store & Play Store submission • TestFlight & Firebase App Distribution • CI/CD with GitHub Actions, Codemagic, Bitrise • Version management • Beta testing coordination 🎯 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 Successfully delivered apps across: • E-commerce & Retail • Fintech & Banking • Healthcare & Telemedicine • Food Delivery • Social Networking • On-Demand Services • Enterprise Solutions • Educational Platforms 💼 𝐏𝐑𝐎𝐕𝐄𝐍 𝐑𝐄𝐒𝐔𝐋𝐓𝐒 • 98% client satisfaction with zero missed deadlines • Apps generating $2M+ combined revenue for clients • 40-60% cost savings through efficient cross-platform development • Average 4.8+ app store ratings on delivered projects • 15+ successful projects across iOS and Android 🤝 𝐌𝐘 𝐀𝐏𝐏𝐑𝐎𝐀𝐂𝐇 I don't just code I collaborate. From initial concept to App Store launch, I work closely with clients to ensure their vision becomes a polished, scalable product. Clean code, thorough testing, and clear communication are non-negotiable in my process. I bring not only technical depth but also Agile methodology expertise, delivering projects on time while maintaining the highest quality standards. 📌 Available for hourly, fixed-rate, and ongoing B2B, B2C, and SaaS engagements. 🎯 Ready to transform your app idea into a profitable reality today. 🌍 Countries Collaborated With: 🇺🇸 United States | 🇨🇦 Canada | 🇬🇧 United Kingdom | 🇦🇪 United Arab Emirates | 🇩🇪 Germany | 🇫🇷 France | 🇦🇺 Australia | 🇸🇬 Singapore | 🇮🇳 India | 🇹🇳 Tunisia...

Senior Mobile Architect & Tech Lead (12+ Years Exp.) I am a Tech Lead specializing in high-scale mobile architectures and DevOps automation. Currently leading mobile engineering initiatives at Pluxee (formerly Sodexo), helping migrate legacy systems to modern, centralized architectures (BFF). Previously, I led mobile teams at Itaú Unibanco. How I Can Help You: Mobile Architecture: Expertise in clean architecture, modularization, and migration strategies for iOS and Android. DevOps & CI/CD: I build automated pipelines (GitHub Actions, Bitrise) to reduce build times and ensure code quality—stop wasting time on manual deployments. Technical Leadership: I can audit your current codebase, mentor your team, and set up the roadmap for scalable growth. Tech Stack: Swift, Kotlin, Flutter, CI/CD Pipelines, Backend-for-Frontend (BFF)

Hi! I build interactive 3D experiences, full-stack web and mobile apps, and AI systems — including offline LLMs running on your own hardware: no cloud, no data leaving your building. Your customers can spin, customise, and try your products in the browser — no app download. Virtual try-on, 3D product configurators, AR experiences, live streaming, and AI automation. One developer, complete build: frontend, backend, database, deployment, and the 3D or AI layer your product needs. 🧊 3D, AR & INTERACTIVE EXPERIENCES ✔ Virtual try-on + live video consultation app for opticians — customers try frames on their face and discuss prescriptions with staff remotely ✔ Real-time 3D product configurators for manufacturing and interiors — browser-based, mobile-friendly ✔ ARKit indoor navigation system for visually impaired users (MSc research project) ✔ AR geospatial modules and 3D visualisers for an artwork gallery Tech: Three.js, WebGL, React Three Fiber, GLTF/GLB pipelines, ARKit, ARCore, WebXR, LiDAR scan workflows, Blender (asset prep) 🤖 AI, AUTOMATION & OFFLINE LLMs ✔ Offline LLMs deployed on edge devices (NVIDIA Jetson Orin Nano, Orange Pi) — private, on-premise AI with zero cloud costs and full data privacy ✔ AI workflow automation and agentic pipelines ✔ CRM for cold email campaigns (Woodpecker, Mailchimp) ✔ Instagram lead-finding and outreach automation ✔ LLM features inside web apps — chat, recommendations, content generation Tech: OpenAI API, Ollama, llama.cpp, quantized GGUF models, NVIDIA Jetson (JetPack, CUDA), ARM/Linux edge deployment, agentic workflows 📱 WEB & MOBILE APPS (FULL STACK) ✔ Live streaming platform — 4 creators broadcasting together, viewers pay per minute ✔ Booking and management app for a healthcare services agency ✔ Room assessment app for heat pump companies — installation estimates without an on-site engineer visit ✔ E-commerce sites and product storefronts ✔ Integration and support work for VoIP / telecoms companies ✔ Hardware-paired mobile apps (device pairing, BLE) Tech: React, Next.js, TypeScript, Flutter, React Native, Node.js, Express, REST APIs, WebSockets, Socket io, Agora live video, Stripe, MongoDB, Firebase, AWS (EC2, S3, Lambda), Vercel, Tailwind CSS ⭐ WHY ME? ⭐ I ship complete products — 3D scene to deployed backend, no second developer needed ⭐ Master's in Computer Science with Distinction — Middlesex University London ⭐ ~3 years across agencies, startups, and direct clients in 3D/AR and full-stack development ⭐ Honest scoping — if something isn't feasible, I say so before you've spent money finding out ⭐ Clear communication from roadmap to delivery, and I deliver what was agreed Whether you searched for a 3D configurator, virtual try-on, AR app, Flutter or React developer, AI automation, offline LLM deployment, live streaming, or a full product build — describe the problem, and I'll tell you honestly what it takes to solve it. Let's build something your customers actually want to use. Happy to walk through any project on a call.

An astute professional developing cutting-edge AI solutions that transform industries and drive innovation. My expertise spans across various domains, with a focus on creating impactful Generative AI use cases such as chatbots, integration of GenAI in financial services and comprehensive all-in-one GenAI products. Synopsis of my skills are : 1.⁠ ⁠Chatbots - Customer Support Chatbots - E-commerce Chatbots - Healthcare Chatbots 2.⁠ ⁠Integration of GenAI in Financial Services - Automated Financial Advisory - Fraud Detection - Customer Insights and Personalization 3.⁠ ⁠GenAI All-in-One Products - Content Generation Tools - AI-Powered Personal Assistants - Data Augmentation Solutions Why Choose Me? •⁠ ⁠Experienced comprises of AI skills, data science, and software engineering with hands-on in deploying state-of-the-art AI solutions. •⁠ ⁠Custom Solutions tailored for AI products to meet the unique needs of each client, ensuring maximum impact and ROI. •⁠ ⁠Innovation-Driven: Deliver at the forefront of AI advancements, continuously exploring new possibilities and technologies to provide my clients with the best solutions. •⁠ ⁠Proven Track Record* My portfolio includes successful projects across various industries, demonstrating our capability to deliver exceptional results.

I'm a developer specializing in mobile app development (iOS), web-apps, and backend development. I can help with just about any development services you need and have extensive experience in startups and corporate environments. I also have a knack for design and offer UI development services as well. - Swift, SwiftUI, Python - Full development lifecycle from start to finish