⭐️ Upwork Expert-Vetted • Top 1% ⭐️ With 20+ years of hands-on software development and product design experience, I help founders and teams turn ideas into successful startups. My expertise spans Swift, SwiftUI, Objective-C, C/C++, and a deep background in Product Design (UX/UI/IxD/HCI/HF/UxD/IA). I specialize in: • Launching and scaling startups from concept to MVP and beyond
 • Building social networks, streaming platforms, e-commerce, utilities, and B2B solutions
 • Leading UX research to identify user needs and craft intuitive, market-fit products • Designing and architecting products that delight users and drive growth Whether you need a solo expert or a full team, I can take your vision from idea to launch—covering ideation, architecture, design, and development. I’m passionate about creating products people love, and I thrive on solving complex problems with simple, elegant solutions. Let’s build your next successful startup together. 🎯

I'm a Mobile App Developer with over 15 years of experience delivering high-performance iOS and Android apps. My expertise spans Swift, Kotlin (Dart), Flutter, and React Native. I have successfully handled many projects end-to-end, and I can help you develop apps from scratch or upgrade existing applications. 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ✔️ Real Estate ✔️ Telehealth ✔️ Education ✔️ Retail ✔️ Mobility ✔️ Ecommerce ✔️ Fintech ✔️ Food & Beverages ✔️ Healthcare ✔️ Market Research ✔️ Lifestyle 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗪𝗲 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝗲 𝗜𝗻: Native Development: •OS: RX-Swift, Swift, Objective-C •Android: Kotlin, Java Cross-Platform Development: •React Native •Flutter (Dart) Web Services & Device Integration: •XML/JSON, REST/SOAP, GraphQL, BLE, iBeacon, NFC Specialized Skills: •Image Classification, Object Detection, Speech Recognition, Text-to-Speech, Barcode Scanning, OpenCV Databases & Firebase: •SQLite, Firestore, Realm, CoreData, Real-time Database, Crashlytics, Performance Monitoring, Dynamic Links, In-App Messaging Media Streaming & AWS Services: •M-JPEG Streamer, GStreamer, Larix Broadcaster, Wowza, VLC SDK, Rekognition, SageMaker, Lambda, Polly Mapping & ML/AR: •Google Maps, Foursquare, GPS, OpenStreetMaps, MLKit, ARKit, AutoML Vision Edge DevOps: •CI/CD, Docker, Kubernetes, Jenkins, AWS CloudFormation, Azure, Terraform 𝙋𝙖𝙨𝙨𝙞𝙤𝙣𝙖𝙩𝙚 𝙖𝙗𝙤𝙪𝙩 𝙩𝙪𝙧𝙣𝙞𝙣𝙜 𝙘𝙤𝙢𝙥𝙡𝙚𝙭 𝙞𝙙𝙚𝙖𝙨 𝙞𝙣𝙩𝙤 𝙨𝙪𝙘𝙘𝙚𝙨𝙨𝙛𝙪𝙡 𝙢𝙤𝙗𝙞𝙡𝙚 𝙖𝙥𝙥𝙨. 𝙇𝙚𝙩'𝙨 𝙘𝙧𝙚𝙖𝙩𝙚 𝙨𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙖𝙢𝙖𝙯𝙞𝙣𝙜 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧! Best Regards, Qaran

JOSH FOUNDER | 30 YEARS BUILDING AND SHIPPING SOFTWARE PRODUCTS I've founded studios, exited them, and shipped apps to both the Apple and Google app stores. Now I lead a US-based senior engineering team that directs AI agents across the full build. You get the speed. We stay accountable for what ships. This is not vibe coding. It is senior engineering judgment combined with AI execution, built for founders and operators who need to move faster without losing control of the codebase. We embed as a partner, not a vendor. Most clients stay and keep building with us as their de-facto tech team. WHY CLIENTS WORK WITH ME Many software and AI projects fail because the wrong decisions get made early. Scope is unclear. Architecture is rushed. Costs balloon. AI-generated code looks complete but breaks under real-world use. I help clients avoid that by putting senior technical judgment at the center of the build from day one: before development begins, before costs lock in, before the wrong decisions get baked in. WE'RE PROBABLY A FIT IF YOU Have a validated need but no technical team to build what comes next Have a spreadsheet or prototype that proved the idea but won't scale Have a vibe-coded app generating MRR but need a stable foundation under it Started building but need architecture and senior oversight to finish Want to use AI without losing control of your codebase Run knowledge-heavy operations you want to automate without losing human control WHAT WE DO: TWO SERVICE LINES, ONE ENGINE Every build runs on AI agents working alongside senior engineers. That engine powers both: Agentic Software Development. We build the product your customers use: apps, web platforms, games, AI products, and AR/VR, from MVP to scale. Agentic Workflow Automation. We automate the knowledge-heavy processes your team runs on: operations, data pipelines, and document workflows, with AI agents and human-in-the-loop control. The difference is simple. One builds the product your customers use. The other builds the process your team runs on. WHAT WORKING WITH ME LOOKS LIKE Full team: senior engineers, product owner, designer, and QA. I lead. AI executes. Nothing ships without senior review. Advisory: I come in as your fractional technical leader. Same judgment, scoped to what you need. Either way, your code stays clean. Your IP stays yours. We bill for outcomes and architectural judgment, not manual hours. REAL RESULTS Delivered a $1.2M-class enterprise platform for under $95K, same deliverables, fraction of the cost Designed infrastructure that scaled through 500% traffic growth post-launch, with no added admin staff Running 79M pricing combinations in the first 30 days of live production, a lifetime of manual work Drove a 70% increase in R&D utilization through higher AI adoption Turned 20 years of institutional knowledge into a single searchable, trusted source WHAT WE'VE BUILT Maritime AI (Dolgo): voice-first RAG platform for offline expert knowledge capture Automotive SaaS (Ben's Best Price): 79M real-time pricing combinations, replaced manual ops Chemical R&D (Private): 70% increase in AI usage, faster project completion Live Broadcast AI (Pickford AI): first-of-its-kind multi-agent storytelling engine with real-time audience adaptation Nonprofit / Education (5 Keys): 20 years of institutional knowledge made searchable TECH STACK AI/ML: LLMs, RAG, vector search, multi-agent, computer vision Mobile: React Native, Swift, Kotlin, Flutter Game/AR/VR: Unity, Unreal, ARKit, ARCore Backend: Python, Node.js, C#, Firebase, PlayFab Cloud: AWS, Azure, Google Cloud, Supabase, Docker, Kubernetes BEFORE YOU SPEND MORE BUDGET Send me a message first. Honest read on the risks, the gaps, and what it would actually take to ship. No pitch. No commitment. NDA first.

Why work with me: ✅ 100% Job Success Score ✅ Only 5-star client reviews ✅ 185 successful projects delivered ✅ Consistently exceeding expectations Key Strength: Clients hire me because they need someone who can take ownership, reduce risk, and ensure delivery. Not just write code. I am the founder and technical owner behind Delivery Web. I lead discovery, architecture, and delivery oversight for complex software systems, integrations, and data-driven platforms. My responsibility is to ensure projects are built correctly, delivered reliably, and scaled safely. I remain accountable throughout the lifecycle of every engagement, focusing on architectural decisions, risk reduction, and long-term continuity. Execution is handled by my senior delivery team at Delivery Web, allowing clients to scale without dependency on a single individual. How Engagements Work: ✅ I lead early discovery and technical direction ✅ I remain accountable for delivery outcomes ✅ Delivery Web executes under my oversight Skills: ✅ Software Architecture ✅ Backend Systems ✅ API Integration ✅ Platform Scalability ✅ Cloud Architecture ✅ Data Systems ✅ Security & Compliance ✅ Technical Leadership Favorable Technologies I use: ✅ Python (Django and Flask) ✅ Node.js, ✅ React.js ✅ Angular ✅ AWS ✅ Flutter ✅ Capacitor.js

𝗧𝗼𝗽 𝟬.𝟱% 𝗨𝗽𝘄𝗼𝗿𝗸𝗲𝗿. ☑️ 𝗘𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹 𝗰𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗳𝗼𝗰𝘂𝘀. 🎯 𝗢𝗻𝗲-𝘀𝘁𝗼𝗽 𝘀𝗵𝗼𝗽 𝗳𝗼𝗿 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮𝘁𝗶𝗼𝗻, 𝗹𝗮𝘂𝗻𝗰𝗵 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗶𝗻𝗴. 🚀 𝗛𝗶! 𝗕𝗿𝘆𝗮𝗻 𝗵𝗲𝗿𝗲. 👋 𝗦𝘁𝗮𝗿𝘁𝗶𝗻𝗴 𝗮𝘀 𝗮 𝗸𝗶𝗱 𝗜’𝘃𝗲 𝗻𝗼𝘄 𝗼𝗯𝘀𝗲𝘀𝘀𝗲𝗱 𝗼𝘃𝗲𝗿 𝗰𝗼𝗱𝗲 𝗳𝗼𝗿 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟮𝟱+ 𝘆𝗲𝗮𝗿𝘀. 𝗙𝗮𝘀𝘁 𝗳𝗼𝗿𝘄𝗮𝗿𝗱 𝘁𝗼 𝟮𝟬𝟮𝟱 𝗮𝗻𝗱 𝗜 𝗰𝘂𝗿𝗿𝗲𝗻𝘁𝗹𝘆 𝗹𝗲𝗮𝗱 𝗮 𝘁𝗲𝗮𝗺 𝗼𝗳 𝟭𝟬𝟬+ 𝗲𝘅𝗽𝗲𝗿𝘁 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝗮𝘁 𝗺𝘆 𝗰𝗼𝗺𝗽𝗮𝗻𝘆 𝗚𝗼𝗹𝗱𝗶𝘀𝗵 𝗖𝗼𝗱𝗲. We focus exclusively on custom app / software development, maintenance and marketing for quality-focused clients seeking true long-term, expert-level partnership. With nearly $2M+ USD earned here on Upwork, our recipe for success has been the combination of top-notch work quality and leadership. ✅ We excel at skillfully walking our clients through the process of creating an app that is better than what they can imagine on their own. Where other app dev teams need direction is exactly where we leverage leadership to deliver a pixel-perfect final product. ❌ We are not “yes” people! We do not say “ok” to every client request. We think critically about every piece of work requested and leverage our expertise to offer solutions that truly support our client's goals. 📞 𝗜𝗳 𝘆𝗼𝘂’𝗿𝗲 𝗶𝗻𝘁𝗲𝗿𝗲𝘀𝘁𝗲𝗱 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗶𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁. 𝗜’𝗹𝗹 𝗰𝗵𝗲𝗰𝗸 𝗶𝗻 𝘁𝗼 𝗲𝗻𝘀𝘂𝗿𝗲 𝗼𝘂𝗿 𝗵𝗶𝗴𝗵-𝗹𝗲𝘃𝗲𝗹 𝗲𝘅𝗽𝗲𝗰𝘁𝗮𝘁𝗶𝗼𝗻𝘀 𝗮𝗿𝗲 𝗮𝗹𝗶𝗴𝗻𝗲𝗱 𝗮𝗻𝗱 𝗶𝗳 𝘀𝗼, 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 📞 ⭐️⭐️⭐️⭐️⭐️ ❝ Goldfish Code is a top notch development firm. They have been curious about my business my vision, our company goals and related development needs. The team has helped me to imagine and express the user journey in actionable ways. They have given me the tools and feedback to prioritize features and provided streamlined, clear and consistent communication at every step. In many instances I found the inertia of the project came from them which is unusual and exceptional. The quality of the work they did in helping me and my company build a beta iOS app is high quality. While we have completed the first stage of development I intend to work with the Goldfish team to further develop my application. They are flat out good people and a pleasure to work with. I highly recommend them from end to end: project planning, project management and timely output. ❞ 🗣 Review From Check!st - An IOS Airlines Industry App 🗣 𝗪𝗲 𝗼𝗳𝗳𝗲𝗿 “𝗳𝘂𝗹𝗹-𝘀𝗲𝗿𝘃𝗶𝗰𝗲” 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝘁𝗼 𝗼𝘂𝗿 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗶𝘁𝗵𝗶𝗻 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗮𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗰𝘆𝗰𝗹𝗲. 𝗧𝗵𝗶𝘀 𝗰𝗮𝗻 𝗼𝗳𝘁𝗲𝗻 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: 1️⃣ Ideation, Architecture Design, Strategy & Planning (Including Creating a Fully Fledged Features List & More) 2️⃣ Development & Quality Control (User Interface (UI) & User Experience (UX) 3️⃣ Marketing Launches 4️⃣ Maintenance (Ongoing Support, Security, Updates & More) 5️⃣ Ongoing Marketing To Scale 𝗘𝘅𝗮𝗺𝗽𝗹𝗲𝘀 𝗢𝗳 𝗧𝗵𝗲 𝗧𝘆𝗽𝗲𝘀 𝗢𝗳 𝗔𝗽𝗽𝘀 𝗮𝗻𝗱 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹𝗶𝘁𝘆 𝗪𝗲’𝘃𝗲 𝗖𝗿𝗲𝗮𝘁𝗲𝗱: 🔸 eCommerce Platforms (eg. Amazon, ebay) 🔸 Social Media applications (e.g. Facebook/Instagram) 🔸 Transportation Routing planners (e.g. Uber/Google Maps) 🔸 Realtime Video, Screensharing & Phone services (e.g. Zoom) 🔸 Backoffice Automation Solutions (e.g. Quickbooks, Docusign) 🔸 Bluetooth-connected Smart Home Devices (e.g. Hue lights, Wemo Plugs) 🔸 Augmented Reality applications (e.g. Pokemon Go) 🔸 Competitions and Leaderboards (e.g. Game Center) 🔸 Directories & Reviews (e.g. Yelp) 🔸 Job Matching Boards (e.g. Upwork) 🔸 Education & Test Taking preparation (e.g. Kaplan) 🔸 Forms, Data Collection, Graphs & PDF Export (e.g. Google Forms) 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗮𝗻𝗱 𝗖𝗼𝗱𝗶𝗻𝗴 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 𝗪𝗲 𝗢𝗳𝘁𝗲𝗻 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗜𝗻𝗰𝗹𝘂𝗱𝗲: 🛠 Bluetooth Apps For Hardware & Devices (Version 5.4 & Below) 🛠 Internet Of Things (IoT) 🛠 Machine Learning (ML) & Artificial Intelligence (AI) (Chap GPT & More) 🛠 Augmented Reality (AR) & Virtual Reality (VR) 🛠 Blockchain & Cryptocurrency Related 🛠 React Native, Swift, Java, Ruby (iOS & Android) 🛠 React, Angular, Vue.js, HTML, CSS, PHP (Web) 🛠 Python, Django, Node.js (Server) 🛠 PostgreSQL, Redis, MySQL, MongoDB (Databases) 🛠 Amazon Web Services, Google Cloud & Firebase, Microsoft Azure (Cloud Infrastructure) I care about creating exceptional apps. If that's what you're looking for, invite me to your project on Upwork and I look forward to learning about your vision! 𝗕𝗿𝘆𝗮𝗻 𝗙𝗮𝗿𝗿𝗶𝘀 - 𝗙𝗼𝘂𝗻𝗱𝗲𝗿 - 𝗚𝗼𝗹𝗱𝗶𝘀𝗵 𝗖𝗼𝗱𝗲

Most software projects don’t fail because of bad code. They fail because they take too long, cost too much, and get overbuilt. That’s where I’m different. I help founders, agencies, and businesses launch software fast by using ready-made, production-ready systems instead of building everything from zero. What you get working with me: ✅ Faster launch (days or weeks, not months) ✅ Lower cost (no wasted development time) ✅ Proven architectures that already work in real products ✅ Clean, scalable code — not shortcuts I work as both: A full-stack & mobile developer (custom when needed) A software system provider (ready-made solutions to save time) Tech stack (when customization is required): Kotlin, Flutter, React Native, MERN, Next.js, Angular, Django, Spring Boot, Firebase, Laravel, PHP, Node.js, and more. If you already know what you want to build, I’ll help you launch it faster. If you’re unsure, I’ll help you avoid expensive mistakes before writing code. 👉 Message me with your idea, and I’ll tell you the fastest way to ship it.

Independent mobile app developer specialising in maintenance, stabilisation, and long-term support of mobile applications using Bluetooth Low Energy (BLE) and NFC. I work across iOS, Android, and React Native codebases, helping teams improve connection reliability, performance, and release confidence in production environments. My work frequently involves diagnosing and resolving intermittent BLE issues such as disconnects, slow discovery, and lifecycle edge cases, as well as supporting apps in payments-enabled and operationally sensitive domains. Key Responsibilities: - Maintenance and stabilisation of BLE- and NFC-enabled mobile apps - Cross-platform development and support: - iOS (Swift, CoreBluetooth, Core NFC) - Android (Kotlin/Java, Bluetooth GATT APIs) - React Native (native module integration) - Performance tuning related to connection stability, discovery time, and battery usage - App Store and Play Store release management, including coordinated re-submissions - Payments integration and maintenance (e.g. Stripe, Worldpay, EBT SNAP) Highlights: - Reduced erroneous BLE disconnect rates by ~15% in a production app - Improved BLE device discovery time by ~5 seconds - Designed and managed a quarterly release process for 200+ mobile apps, including occasional repushes - Provided long-term consulting support to a client over ~3 years, focused on stability and operational continuity Specialties: BLE · NFC · Mobile App Maintenance · iOS · Android · React Native · CoreBluetooth · Bluetooth GATT · Payments Integration · Production Support

I build computer vision, mobile AI, and LLM agent systems that run in production — not proof-of-concepts. $600K+ earned · 100% Job Success · Top Rated Plus · 50+ apps shipped · 10+ years.   🎥 Computer Vision & Video AI Real-time detection, tracking, and video pipelines built for live production. - Built real-time tracking for a US sports company — processing live camera feeds frame-accurate for automated broadcast. - Image registration & feature matching (homography, SIFT/ORB) for frame alignment and multi-frame processing. - Edge & on-device optimization: quantization, ONNX / TFLite / CoreML export, low-latency real-time inference. Stack: YOLO, OpenCV, C++ inference, homography, SIFT/ORB, FFmpeg, ONNX, CoreML, TensorFlow Lite.   📱 Mobile AI — iOS & Android Where mobile meets ML: I ship AI that runs on the device, not just calls to a server. - On-device inference with CoreML & TensorFlow Lite — quantized, optimized models running in real time, offline, no backend round-trip. - Real-time computer vision on phones — live camera detection & tracking running directly on iOS/Android hardware. - AI embedded in the core product flow — vision and ML features, not a bolted-on toggle. - 50+ apps shipped over 10+ years across healthcare, fintech, wellness, and sports. Swift, SwiftUI, Kotlin, Jetpack Compose, Flutter, React Native.   📊 Data & ML Pipelines - Built a PySpark clustering pipeline for a US energy AI company — segmented ~1M households into 50–200 cohorts, production-grade with a validation framework. 🛠 Stack Vision: YOLO, OpenCV, C++ inference, homography, FFmpeg, CoreML, TensorFlow Lite Mobile: Swift, SwiftUI, Kotlin, Jetpack Compose, Flutter, React Native AI/LLM: Claude, GPT, Gemini, LangChain, LangGraph, RAG, vector DBs, n8n ML/Data: Python, PyTorch, TensorFlow, PySpark, Pandas, scikit-learn Cloud: AWS Bedrock, Azure OpenAI, Vertex AI, Firebase 🌎 Based in Buenos Aires (GMT-3) — solid overlap with US & EU business hours. English: Fluent. Weekly updates, clear timelines, honest scoping — if something needs to change mid-project, you hear it early, with options. Send me the problem — I'll tell you how I'd approach it and how long it'll take. Message me to start

I build AI-powered products and full-stack systems for businesses worldwide. Production-ready. On time. Every time. 🏆 ▪️ Full Stack Development: Python, Django, FastAPI, React, Next.js, Node.js, Nest.js, TypeScript ▪️ AI Developer & LLM Integration: Claude API, OpenAI API, RAG Pipelines, AI Chatbots, Multi-Agent Systems ▪️ Python Developer: Django, FastAPI, REST API, Celery, PostgreSQL, Redis ▪️ React Developer: Next.js, React Native, TypeScript, SaaS Dashboards, Web Applications ▪️ Node.js Developer: Nest.js, Express, TypeScript, GraphQL, WebSockets, Microservices ▪️ Enterprise Software Development: FinTech Platforms, HealthTech, HIPAA-Compliant Systems, Government ▪️ Cloud & DevOps: AWS, Azure, Docker, CI/CD Pipelines, GitHub Actions, Infrastructure as Code ▪️ AI Automation: Document Processing, Knowledge Bases, Agentic Workflows, Chatbot Development Clients: Audi · eToro · California Department of Justice · Qonto (European FinTech, $5B valuation) Official Anthropic Technology Partner · Inc. 5000 · Forbes Technology Council 🥇 200+ projects shipped · 0 missed deadlines · 100% estimate accuracy ✔️ AI DEVELOPER & LLM INTEGRATION I design and ship AI-powered products built on Claude (Anthropic) and OpenAI APIs. As an official Anthropic Technology Partner, I have deep hands-on expertise in LLM application architecture for enterprise use cases. What I build: AI chatbots and conversational assistants, RAG (Retrieval-Augmented Generation) systems, multi-agent workflows, document processing automation, knowledge base platforms, AI-powered search, recommendation engines, and LLM integration into existing products via API layer. Stack: Python, FastAPI, LangChain, LlamaIndex, Claude API, OpenAI API, Pinecone, Chroma, Weaviate, Redis, PostgreSQL, AWS Lambda, Docker. Every AI product is production-ready — with proper context management, guardrails, cost optimization, error handling, and monitoring. Not a demo. Not a prototype. Shipped software. ✔️FULL STACK DEVELOPER — PYTHON · REACT · NODE.JS 12 years building web applications, SaaS platforms, and enterprise systems from scratch to production. I own the full stack: architecture, backend, frontend, database, deployment. Backend: Python (Django, FastAPI, Flask), Node.js (Nest.js, Express), REST API, GraphQL, WebSockets, async task queues (Celery, Bull), JWT and OAuth2 authentication, role-based access control. Frontend: React, Next.js, React Native, TypeScript, Tailwind CSS, Redux, SWR. Responsive, accessible, performant. Component architectures that scale — not code that breaks when you add the third developer. Database & Infrastructure: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch. AWS (EC2, RDS, S3, Lambda, CloudFront, ECS), Azure, Docker, Kubernetes, GitHub Actions, GitLab CI. Infrastructure as Code (Terraform, AWS CDK). ✔️ ENTERPRISE SOFTWARE — FINTECH · HEALTHTECH · GOVERNMENT I build mission-critical systems for regulated industries where reliability, security, and compliance are non-negotiable. FinTech: payment processing systems, transaction monitoring, compliance automation, fraud detection, financial reporting dashboards, multi-currency platforms, Stripe and banking API integrations. Reference: Qonto — European neobank unicorn at $5B valuation. HealthTech: HIPAA-aware platforms, patient data management systems, clinical workflow automation, EHR and EMR integrations, telemedicine infrastructure, secure document handling. Reference: Modern Animal, Truveris, Prounitas. Government & Legal: audit-trail systems, secure document processing, role-based access control, decision logging, compliance reporting. Reference: California Department of Justice. ✔️ EDTECH PLATFORMS Student data systems, LMS infrastructure, analytical dashboards, compliance and security, user progress tracking, video delivery, assessment engines, and multi-tenant SaaS architecture. EdTech is my deepest vertical — more delivery experience in this space than almost any developer on this platform. ✔️ TEAM AUGMENTATION Need senior developers who plug into your product and deliver from week one, without the overhead of sourcing and onboarding? I source, vet, and lead the right engineers for your stack and timeline. Python developers, React developers, Node.js developers, AI engineers — all from a pre-vetted pool of top 3% talent. ✔️ PROJECT RESCUE Half-built product? Vibe-coded MVP that needs finishing? App that's live but has performance issues, security vulnerabilities, or can't scale? I take ownership, audit the codebase, and ship. Performance optimization, security hardening, technical debt reduction, production-grade refactoring — all part of what I do. ✔️ HOW I WORK Every engagement runs through a 36-point Quality Standards framework — a proprietary delivery process built over 200+ projects. Accurate estimates. Transparent tracking. On-time delivery. No surprises.

o 17+ years of experience building iOS apps – one of the original App Store developers (July 2008) o 22+ years successfully working with dozens of clients from my REMOTE office, as a telecommuter o 30+ Apps published in the Apple App Store and Enterprise o 25+ years of professional software development experience o 20+ years of experience with networking protocols & methodologies: REST, JSON, HTTP, TCP, UDP o 20+ years of experience with source control systems: Git, SVN, CVS, RCS, VSS, Perforce o Keen ability to distill complex concepts and systems into easily understandable terms o Outstanding analytical and problem-solving skills o Ability to work independently and as part of a team o Exceptional attention to detail, remarkably fast learner, excellent communication skills. o Personable, enthusiastic, conscientious. o Languages: Objective-C, C++, Swift, Java, Kotlin, JavaScript, PHP, Python, Perl, C, C#. o Operating Systems: iOS, watchOS, macOS, Windows, Linux, Unix. o IDEs: Xcode, Android Studio, Visual Studio, Eclipse. o Experience with API architecture design. o Strong understanding of multi-threaded and concurrent applications. o Expert understanding of all aspects of the iOS provisioning workflow. o Experience developing in an agile and test-driven environment. o Experience creating dynamic libraries with CocoaPods. o Experience with third-party libraries, APIs, and SDKs. o Hands-on experience with UIKit, CoreData, CoreGraphics, CoreAnimation, Cocoa design patterns. o Experience with a wide variety of analytics platforms, including Firebase (Google), Flurry (Yahoo), AWS, comScore, Nielsen, Adobe, MOAT (Oracle). o Ability to bring designer’s creations to life, with pixel-perfect implementations. o Experience in video and media-based development projects. o Working knowledge of Android development (Android Studio, Java, Kotlin, XML, Gradle, CircleCI).