Hire the Best OAuth Developers in New York, NY

I’m a Senior Full Stack Developer with 15+ years of experience building scalable, high-performance web applications and SaaS platforms. I’ve evolved alongside the web’s transformation from static sites to microservices, serverless, and AI-driven architectures. My focus is on delivering clean, maintainable, and performant solutions using modern technologies like React, Next.js, TypeScript, Node.js, and Python/FastAPI, backed by AWS and strong DevOps pipelines. I take pride in writing production-grade code that scales, automates, and lasts. I’ve worked with clients ranging from early-stage startups to enterprise organizations, helping them design, build, and launch reliable digital products that deliver measurable results.

Hey, I'm Vernon O. Garra. I'm based in New York, and mobile app development has been my main focus for over fifteen years now. I'm not trying to be another name in your list of contractors, I want to be the technical teammate you wish you'd brought on from day one. If you've got an idea for an AI-powered app but you're not technical, you're in the right place. You don't need to know what an API is or how a vector database works, that's my job, not yours. You bring the idea, I bring the engineering, and I'll walk you through it in plain English, not developer jargon that leaves you more confused than when we started. When I say AI expertise, here's what I actually mean. I use OpenAI, Claude, and Gemini to build the AI in as the actual brain of the app, not some chatbot stuck in the corner. Think smart onboarding that adapts per user, workflows that kill off manual busywork, personalization that makes the app feel like it actually knows the person using it. If your idea has AI in it anywhere, an assistant, automation, content generation, smart recommendations, I've probably built something like it already. Beyond mobile apps, I also build across a few adjacent categories depending on what the project needs, SaaS platforms with subscription billing and multi-tenant architecture, HIPAA-compliant systems for healthcare clients that need to handle sensitive data properly, and contractor or marketplace platforms with more complex backend logic. Whatever category the project falls into, the app itself stays the priority. To build all of this, I use React Native and Flutter when I need cross-platform speed, and Kotlin when a project needs real native access, call and SMS handling, background services, the kind of system-level stuff cross-platform just can't do cleanly. On the backend I work with Node.js, MongoDB, Firebase, Supabase, and AWS, and for AI I bring in OpenAI, Claude, and Gemini depending on what the feature actually calls for. When speed matters early on, I'll use AI tools like Lovable to prototype fast, then rebuild it properly in hand-written, production-grade code once it's time to scale. A few things I've built recently: GateKeeper, an Android call/SMS firewall app with Twilio verification built in, I did that one solo, start to finish, and it's in final delivery now. HLSC Storm Prep Hub, a hurricane-prep contractor marketplace with a three-tier listing system, built on Next.js, Supabase, Stripe, and the Claude API for the smart features. And Zekko Golf, which started as a React web app and I turned it into a real native iOS and Android app using Capacitor. If you're a founder or CEO, technical or not, and you need someone who'll catch problems before they cost you money, and actually treats your product like it matters, that's what you get with me. Tell me your idea, rough edges and all. I'll tell you exactly how we get it built.

I've done *nix systems administration, full stack web development, and systems architecture work for over twenty years. I've been a big advocate for code quality and solid testing practices. Also, I've been known to dig in on hard problems where others have not.

I help enterprise and operations-heavy teams turn messy business processes into reliable systems. I’ve spent 15+ years building and leading production software systems: .NET platforms, Azure infrastructure, SQL databases, APIs, internal tools, reporting workflows, and business-critical applications. That background lets me bridge the gap between AI experimentation and software that a real business can actually depend on. I work best where software needs to connect with real operations - documents, databases, CRMs, spreadsheets, internal portals, legacy systems, approval workflows, reporting processes, and human review steps. I use Claude Code and OpenAI Codex as part of my daily engineering workflow: reviewing codebases, planning features, accelerating development, testing ideas, refactoring safely, and turning business requirements into working software faster. My value is knowing how to apply AI inside real production environments where architecture, security, data quality, maintainability, and auditability matter. I can help with: 🔧 Process Engineering - mapping workflows, finding automation opportunities, and designing safer AI-assisted processes 🤖 AI Automation - document processing, internal tools, reporting automation, CRM/data-entry support, and review queues 🧠 AI/LLM Development - assistants, RAG/search, structured outputs, guardrails, evaluations, and human-in-the-loop workflows 🏗️ .NET / Azure / SQL Integration - connecting AI into existing enterprise systems without creating fragile side projects 📐 Fractional CTO / Technical Lead Support - architecture, roadmap planning, risk review, estimates, and execution strategy A typical first step is a short discovery and workflow review. From there, I give you a prioritized plan: what can be automated, what should stay human-reviewed, where the risks are, what it will cost, and what can be shipped first. Message me with your current process, stack, pain point, and deadline. I’ll help you turn the time-sink into a working system.

Full-Stack Developer & AI Engineer with 7+ years of experience building scalable web and mobile applications, intelligent AI-driven solutions, and cloud-powered ecosystems. I specialize in combining modern frontend frameworks, robust backends, and cutting-edge AI/ML (including GenAI & RAG pipelines) to deliver products that are fast, reliable, and future-ready. 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 Frontend → React.js, Next.js, TypeScript for responsive, high-performance interfaces Backend → Python (Django, FastAPI, Flask) & Node.js for secure, scalable APIs Databases → PostgreSQL, MongoDB, Firebase for structured and real-time data Cloud & DevOps → AWS, Docker, CI/CD for smooth deployments and scalability 𝗔𝗜/𝗠𝗟 & 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜 RAG Pipelines → Retrieval-Augmented Generation for smarter, context-aware apps LangChain & LLMs → Chatbots, AI Agents, document intelligence, and automation Machine Learning → NLP, embeddings, recommendation systems, and predictive analytics GenAI Solutions → Fine-tuning LLMs, multimodal AI, and custom AI integrations 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 React Native & Flutter for native-like cross-platform apps Integration of AI features, real-time updates, push notifications, and secure auth End-to-end support including App Store & Play Store deployment 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 7+ years across Full-Stack + Mobile + AI/ML development Deep expertise in React, Python, Node.js, and Generative AI Proven ability to integrate AI-powered features into apps & platforms Track record of delivering scalable, production-ready solutions on time 👉𝗪𝗵𝗲𝘁𝗵𝗲𝗿 𝘆𝗼𝘂 𝗻𝗲𝗲𝗱 𝗮 𝘄𝗲𝗯 𝗮𝗽𝗽, 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗦𝗮𝗮𝗦, 𝗼𝗿 𝗮 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗲𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺 𝘄𝗶𝘁𝗵 𝗺𝗼𝗯𝗶𝗹𝗲 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲 𝘄𝗶𝘁𝗵 𝘀𝗽𝗲𝗲𝗱, 𝘀𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆, 𝗮𝗻𝗱 𝗶𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻.