Hey there, My name is Jonathan and I offer services as a fractional CTO, full-stack developer, and personal privacy consultant. Let me tell you a little bit about how I got here... I've been working with the web stack since I was young but started out my career about 12 years ago when I started working with WordPress and front-end development. I was able to use those skills to land myself a job at a Silicon Valley tech startup as a front-end engineer. I worked across the web stack using the EmberJS and Rails frameworks. Eventually, I was offered a role as the CTO /technical co-founder of a Real Estate Tech startup. I jumped at the opportunity. It was there that I developed skills as a backend developer, infrastructure architect, and as well as a leader. I built our SAAS application from the ground up and worked across the stack implementing agile methodologies and business processes across multiple domains. We grew that company over the course of 4 years and successfully exited in 2021. After my exit, I stayed with the company leading development and product management. We grew the team from 2 developers to 7 and worked to scale the product and infrastructure. My work included scoping technical projects, leading daily standups, code reviews, creating and managing tickets, and holding interviews for both product and development. Currently, I work as a Fractional CTO. I use the skills I've learned to help bolster teams with a seasoned software development mind. My skills range from infrastructure to full-stack development, building development teams, leading a development team from the product or dev side. I also dive deep into the business side: setting up processes, implement best practices, reducing costs, and more. I specialize in taking products from 0 to 1 or idea to inception as well as jumping in to take over projects stuck in development hell in order to get them back on track so that they deliver on time and on budget.

Are you looking for a developer who can turn your mobile app idea into a high-performance product on both iOS and Android, built with React Native? I combine full-stack backend expertise + AI/automation tools to deliver apps that scale, perform, and automate business workflows. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂: 📱Cross-platform mobile apps (React Native / Flutter) for iOS/Android 🖥️Front end web and Admin (React.js, Next.js, Vue.js, Angular.js, TS, Ant design, MUI, Redux, etc) 💻Backend & API integration (Node.js, Python, MongoDB, PostgreSQL) 🤖AI & automation features (OpenAI, LangChain, Pinecone, n8n) 👨‍💻UI/UX implementation from Figma/Adobe XD, performance optimisation, testing ☁️App deployment (App Store, Google Play) + cloud scaling (AWS, Azure) 🧰Long-term maintenance & feature updates 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: ✅ 7+ Years of Full-Stack & Mobile App Development | AI Integration, Automation & Scalable Apps ✅ Clear communication & timely delivery: I keep you updated, meet deadlines, and aim for 5-star feedback. ✅ Active & dedicated : I stay current with tech trends, update my skills, and ensure your app stays ahead. 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽? 𝗟𝗲𝘁’𝘀 𝘁𝗮𝗹𝗸 𝗮𝗯𝗼𝘂𝘁 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝘁𝗼𝗱𝗮𝘆! 🗨️

I am a Full-Stack Engineer with a strong background in building scalable, secure, and user-friendly web applications. Over the past several years, I've helped startups, SMBs, and enterprise clients turn ideas into production-ready solutions by combining modern frontend frameworks, robust backends, and reliable cloud infrastructure. I enjoy taking on projects that require both problem-solving and creativity - whether that's building a custom web app from scratch, modernizing a legacy system, or optimizing an existing WordPress site for performance and SEO. If you're looking for a reliable full-stack developer who can handle everything from frontend polish to backend logic and cloud deployment, I'd be happy to help bring your project to life.

𝐒𝐭𝐨𝐩 𝐥𝐨𝐬𝐢𝐧𝐠 𝐫𝐞𝐯𝐞𝐧𝐮𝐞 𝐭𝐨 𝐦𝐚𝐧𝐮𝐚𝐥 𝐩𝐫𝐨𝐜𝐞𝐬𝐬𝐞𝐬, 𝐟𝐫𝐚𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐚𝐩𝐩𝐬, 𝐚𝐧𝐝 𝐢𝐬𝐨𝐥𝐚𝐭𝐞𝐝 𝐝𝐚𝐭𝐚 𝐩𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬. I build production-grade full-stack architectures, SaaS applications, and intelligent AI systems. From web and mobile platforms to advanced automation pipelines, I deliver clean, scalable code built to drive business growth. 🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝟏. 𝐀𝐈 & 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: Advanced RAG, autonomous agents, and smart chatbots (GPT-4, Claude, LangChain, Pinecone). 𝟐. 𝐖𝐞𝐛 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬: High-performance SaaS development (React, Next.js, Node.js, FastAPI, Python, React Native, Flutter). 𝟑. 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐕𝐢𝐬𝐢𝐨𝐧: Intelligent workflow systems and computer vision (YOLO, PyTorch, OpenCV). 𝟒. 𝐃𝐚𝐭𝐚 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: Scalable data pipelines and AI analytics (Airflow, PySpark, Databricks). 🚀 𝐏𝐫𝐨𝐯𝐞𝐧 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐈𝐦𝐩𝐚𝐜𝐭: 𝟏. 𝐀𝐝𝐨𝐯𝐯𝐲: Built an AI automation platform turning complex data streams into automated actions. 𝟐. 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦: Deployed a secure, HIPAA-compliant workflow system (70% reduction in manual process times). 𝟑. 𝐎𝐓𝐍𝐞𝐱𝐮𝐬: Engineered a full-stack cybersecurity asset platform (95% increase in customer satisfaction). 𝟒. 𝐊𝐨𝐨𝐥𝐰𝐢𝐧𝐠𝐬: Programmed a real-time aviation operations and MRO alert dashboard (100% operational compliance). 𝟓. 𝐂𝐫𝐞𝐚𝐭𝐢𝐯𝐞 𝐂𝐥𝐨𝐬𝐞𝐭𝐬: Built a centralized CRM and scheduling automation hub (60% increase in lead response efficiency). ⚡ 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐑𝐞𝐚𝐝𝐲 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧 Behind every successful software product is an architecture that handles scale without breaking. Whether you are launching a new SaaS platform, integrating custom LLMs, or automating a complex operation, I engineer systems that deliver measurable ROI. 📩 Click "Invite to Job" or "Message" to launch a technical discovery call. Let’s look at your requirements and lock down your engineering roadmap.

A Forbes Technical Council Member. Experience in Cutting Edge Technologies : 18+ years of experience, having worked with industry giants and a lot of startups. Have been part of successfully executed 200+ projects. || Full Stack Development Expertise || -- REACT JS, Angular, Python, MongoDB, PostgreSQL, PHP, Vue JS, Express js, nodeJS, Ruby on Rails, Java, :: DevOps, ReactJS, Vue. JS, Node.JS, Python, GoLang, Desktop Application, Java, Springboot, Flutter :: Web Apps And Mobile Apps :: Cybersecurity :: Amazon AWS, Kubernetes, Google Cloud Platform (GCP), Azure, Terraform :: UX/UI, Material-UI :: Robotic Process Automation(RPA), IRPA, SAP, Chatbots :: React JS and React Native :: Cypress Javascript Automation :: QA Manual and Automation using Selenium :: DevOps Monitoring Solutions :: Production Support(24*7)

Need some code? I got some code! I specialize in hybrid mobile apps having 9+ years experience, specifically written in the Ionic framework. I also am able to provide React, Angular and NodeJS Services. Whether it is a brand new app, bug fix, or feature addition; I'm your guy!

I help businesses build high performing websites, eCommerce stores, and custom web applications that generate leads, improve user experience, and support long term growth. With 81 successfully completed projects on Upwork, I have worked with startups, agencies, and established businesses across real estate, healthcare, construction, travel, restaurants, eCommerce, fitness, charities, and professional services. My experience ranges from building custom business platforms and CMS solutions to developing modern websites, online stores, and web applications from the ground up. Whether you need a WordPress website, Shopify store, custom Laravel application, React frontend, or a complete end to end solution, I can manage the entire development process from planning and design through deployment and ongoing support. My expertise includes: • WordPress Development (Custom Themes, Plugins, WooCommerce) • Shopify Development (Custom Liquid Development) • Laravel & PHP Applications • React.js, Next.js & Vue.js • Node.js Development • Custom CMS Development • API Integrations • Wix & Squarespace Development • Go High Level (GHL) • Mobile App Development with Flutter • HTML, CSS, JavaScript & Bootstrap • Figma to Website Conversion • UI/UX Design & Prototyping • Website Speed Optimization • Website Maintenance & Technical Support Notable projects include developing a custom Laravel based CMS for a real estate company, enabling agents to create and manage landing pages without developer assistance, as well as delivering scalable web solutions for clients including The Address, Magic Pixie Planners, and Quarter Slide. What you can expect when working with me: ✔ Clean, scalable, and maintainable code ✔ Clear communication throughout the project ✔ Reliable delivery and attention to detail ✔ Solutions focused on business goals, not just development ✔ Long term support when needed If you're looking for a developer who can handle everything from design and development to optimization and ongoing growth, let's discuss your project.

🚀 13+ years turning imaginative ideas into award-winning, cross-platform games. From quality 3D epics to lightweight WebGL prototypes, I build rock-solid gameplay systems in Unity (C#) and super-charge them with cutting-edge AI—procedural worlds, adaptive NPCs, generative art pipelines, and self-learning enemy behaviour. 🚀 What I Deliver: ✅Full-cycle game development – concept → design → prototyping → production → live-ops ✅Advanced AI integration and Custom AI Development – behavior trees, ML-Agents, reinforcement learning, GenAI content, voice & LLM-powered NPC dialogue, OCRs. ✅XR experiences – immersive VR/AR for Meta Quest, Vision OS, HoloLens, Magic Leap ✅Multiplayer & backend – Photon/Fish-Net, NetCode for GameObjects, PlayFab, Firebase, AWS & custom Node/.NET/Python/Go servers ✅Web3 & economy systems – smart-contract interaction, NFT asset pipelines, on-chain analytics ✅Performance optimization– ECS/DOTS, shader graph, GPU instancing, memory/bandwidth tuning for 90 FPS+ Tech Toolbox: • Unity3D • C# • ML-Agents • Python • GPT/LLM APIs • Shader Graph/HLSL • DOTS/ECS • Addressables • Git + CI/CD • Photon • PlayFab • AWS/GCP/Azure • Solidity • Swift •Kotlin • Java • GO Why Hire Me? ✅ I don't need task list from you - I just can make it happen ✅Proven track record: dozens of shipped titles with **> $5M market cap** ✅Clear communication: daily stand-ups, version-controlled builds, video demos, and candid status reports. ✅Scalable architecture: clean code, SOLID patterns, automated testing, and documentation that future teams love. ✅One-stop partner: I handle AI, gameplay, backend, live-ops, and coordinate with artists & designers so you don’t have to. Ready to turn your vision into an unforgettable experience? Let’s chat and map out the fastest path to a playable build.

Hi 👋! I’m 𝐇𝐞𝐧𝐠 𝐔𝐧𝐠, a 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐚𝐧𝐝 𝐀𝐈 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with 𝟏𝟔+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐡𝐚𝐧𝐝𝐬-𝐨𝐧 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 building scalable 𝐰𝐞𝐛 𝐚𝐧𝐝 𝐦𝐨𝐛𝐢𝐥𝐞 solutions that drive real business impact. 𝐂𝐎𝐑𝐄 𝐂𝐎𝐌𝐏𝐄𝐓𝐄𝐍𝐂𝐈𝐄𝐒 • 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 – Python/Django • Laravel/PHP • Node.js/Express • React/Next.js • 𝐂𝐌𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – Traditional: 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 (Gutenberg, ACF, custom plugins), 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 (Liquid, Plus Apps), 𝐒𝐚𝐥𝐞𝐬𝐟𝐨𝐫𝐜𝐞 Commerce Cloud – Headless: Contentful, 𝐒𝐭𝐫𝐚𝐩𝐢, 𝐒𝐚𝐧𝐢𝐭𝐲, 𝐏𝐫𝐢𝐬𝐦𝐢𝐜 • 𝐀𝐏𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬 – REST & GraphQL • Webhooks • Microservices • 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬 – Flutter • Native iOS & Android • Swift • Kotlin • 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 – Natural Language Processing, Computer Vision, Predictive Analytics – Retrieval-Augmented Generation (𝐑𝐀𝐆), 𝐏𝐫𝐨𝐦𝐩𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 – 𝐋𝐋𝐌 𝐅𝐢𝐧𝐞-𝐭𝐮𝐧𝐢𝐧𝐠 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 (GPT-4, Llama, Claude) – 𝐌𝐮𝐥𝐭𝐢-𝐀𝐠𝐞𝐧𝐭 Orchestration (𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧, 𝐀𝐮𝐭𝐨𝐆𝐞𝐧, 𝐂𝐫𝐞𝐰𝐀𝐈) – 𝐒𝐩𝐞𝐞𝐜𝐡 𝐓𝐞𝐜𝐡: Text-to-Speech (AWS Polly, Google TTS, Azure), Speech-to-Text (Google, AWS, Azure) – 𝐀𝐠𝐞𝐧𝐭 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐭𝐨𝐜𝐨𝐥𝐬: 𝐌𝐂𝐏, 𝐀𝟐𝐀 & 𝐀𝐂𝐏 – 𝐀𝐈 𝐈𝐦𝐚𝐠𝐞 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧: • Text-to-Image & Image-to-Image (𝐒𝐭𝐚𝐛𝐥𝐞 𝐃𝐢𝐟𝐟𝐮𝐬𝐢𝐨𝐧, DALL·E, Midjourney) • Generative Adversarial Networks (𝐆𝐀𝐍𝐬) & Diffusion Models • Fine-tuning & Custom Model Training • 𝐂𝐨𝐧𝐭𝐫𝐨𝐥𝐍𝐞𝐭 & Conditioning Pipelines • Prompt Engineering for Visual Outputs • Automation & Workflow Orchestration – 𝐧𝟖𝐧, 𝐙𝐚𝐩𝐢𝐞𝐫, 𝐌𝐚𝐤𝐞 (Integromat), custom Node.js workers – Event-driven triggers, multi-step pipelines, error handling & monitoring • 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 – Docker, Kubernetes, AWS, Azure, GCP 𝐒𝐄𝐋𝐄𝐂𝐓𝐄𝐃 𝐏𝐑𝐎𝐉𝐄𝐂𝐓 𝐇𝐈𝐆𝐇𝐋𝐈𝐆𝐇𝐓𝐒 • 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 – Built multi-tenant stores with dynamic pricing, real-time sales tracking, inventory management and custom reporting dashboards. • 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 – Developed telemedicine apps with symptom checkers, CDSS, appointment scheduling, patient education and wearable integration. • 𝐅𝐢𝐧𝐚𝐧𝐜𝐢𝐚𝐥 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 𝐒𝐮𝐢𝐭𝐞 – Automated ratio analysis tool, anomaly detection module, NLP-driven earnings forecasting and sentiment analysis dashboard. • 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐌𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 – Recommendation engines, visual search, lead scoring, email-send-time optimization, churn prediction and intelligent chatbots. 𝐖𝐇𝐘 𝐏𝐀𝐑𝐓𝐍𝐄𝐑 𝐖𝐈𝐓𝐇 𝐌𝐄? • Proven 16-year track record delivering end-to-end projects on time and on budget • Rapid prototyping, maintainable code and clear documentation • Strong communication: regular updates and transparent timelines • ROI-focus: every feature aligned to your business goals Let’s connect—whether you have a detailed spec or just an idea, I’ll help turn it into a success story. Feel free to invite me to your job post or send a message!

Having developed my first website in 1994 in GeoCities, I fell in love with the front-end of the web at a very early (for the web) age. I've continued working on software development (interspersed with network/domain administration and leadership) for the last 25 years. I've learned a good amount over that time, both in what to do and (probably more importantly) what NOT to do. I'm looking to make freelance development into my full-time job as I would like to be my own boss and create the kind of culture that best reflects my passions. I am a bit of a unicorn as a software developer as I am far more interested in providing the best overall solution, not only in terms of coding, but more importantly in communicating and finding the right answers for everybody, not just what is fastest, cheapest or easiest. I've been recognized throughout my career for my "soft skills" in addition to my years of experience developing for the web, and communication is absolutely a vital part of what I do on every task.