I build scalable backend systems, data pipelines, and automation platforms used by SaaS, fintech, and e-commerce companies. With 14+ years of backend engineering experience, I specialize in designing high-performance APIs, distributed ETL pipelines, and large-scale automation infrastructure. $500K+ earned on Upwork across 270+ projects building backend systems and data platforms. Key strengths: • Backend architecture (Python, FastAPI, Node.js, .NET, PostgreSQL, Supabase, Celery/RabbitMQ/Redis) • Data pipelines & ETL systems • AI integrations and RAG pipelines on vector databases (pgvector, Pinecone, Qdrant) • Large-scale data extraction and reverse engineered APIs • Distributed workers and automation infrastructure I focus on performance, reliability, and long-term maintainability, delivering backend platforms that grow with the business and remain stable under heavy load. Core technologies Python, FastAPI, Node.js, .NET Core, PostgreSQL, Redis, Supabase, Qdrant, Pinecone, Docker, Celery, RabbitMQ, Playwright, Selenium, Scrapy, REST APIs, GraphQL, ETL pipelines, vector search, distributed workers, cloud infrastructure (AWS/GCP/Azure), LLM, Langchain, Langfuse, BMAD

Drowning in legacy .NET modernization, broken LLM pipelines, RAG accuracy issues, or an AI SaaS architecture that can't scale? I build and ship production-ready AI systems, full-stack platforms, and LLM integrations that actually work in the real world. Top Rated Plus, 100% Job Success, 4,830+ hrs, $200K+ earned, 30 five-star reviews, 3x to 10x performance gains delivered. Most clients come to me tired of one of these: • An AI chatbot that makes things up because it isn't grounded in their real data • Hours lost every week to manual work and reporting a machine should handle • A legacy .NET app that's expensive to run and too risky to touch • A great Figma design still sitting unbuilt, or coded badly by someone else • A database and app that crawl as data and traffic grow • AI that looked great in a demo but solves nothing in production I've fixed every one of these, more than once. Here's how I'd help you. 1) AI chatbots, agents & RAG Chatbots grounded on your own data using RAG, LangChain, and vector databases (Pinecone, pgvector), so they answer from your content, not their imagination. GPT-4, Claude, Gemini, with tool use and memory. For your website, Shopify, or WordPress. An AI LMS I built answers in under 200ms. 2) AI automation & Power BI dashboards Workflows that handle the busywork: lead handling, outreach, data, and reporting, built in n8n, Zapier, or Power Automate, plus live Power BI dashboards for your KPIs. A B2B platform I built sends 500+ outreach sequences a day using GPT-4, Playwright, and Celery. 3) Legacy .NET modernization & Azure migration .NET Framework to .NET Core, onto Azure, with documented cost and performance gains. 10+ legacy apps migrated, no scary big bang rewrite. Backends in ASP.NET Core and FastAPI, 100+ APIs, CQRS, DDD, event driven microservices, clean architecture. 4) Figma to React & Next.js Pixel perfect, fully responsive frontends in React 18 and Next.js, hand coded with TypeScript and Tailwind, cross browser tested. Also Angular and Blazor, with real time features via SignalR and WebRTC. 5) Database & query optimization Slow queries fixed with execution plan analysis and proven before/after benchmarks across MySQL, MongoDB, PostgreSQL, and SQL Server. Indexing, query rewrites, schema review, and Redis caching where it helps. 6) Slow app made fast I profile the real bottleneck, queries, caching, code, or architecture, then fix it for measurable 3x to 10x gains across .NET, React, and Node.js. Integrations are a core strength, 50+ delivered: SAP, Microsoft Dynamics, NetSuite, Odoo, QuickBooks, SPS Commerce, EDI (X12, EDIFACT), UPS, FedEx, USPS, Interactive Brokers, Fidelity, Schwab, Shopify, Stripe. Proof at scale: a multi tenant SaaS analytics platform processing millions of data points daily on Azure, and a logistics system handling 10,000+ shipments a day. Cloud and DevOps: Azure App Services, Service Bus, Functions, Kubernetes, CI/CD via Azure DevOps. Why clients stay and come back: • Plain language updates, so you always know status, risk, and what is next • I solve the business problem, not just the ticket • Production ready from day one: documented APIs, parameterised queries, typed frontends, CI/CD, no rework • UK based, responsive across US and European business hours Need an AI chatbot, automation, a .NET rebuild, a Figma to React build, database tuning, or a slow app made fast? Send me the brief and I will tell you exactly how I would tackle it. Available for long term contracts and focused sprints. Skills: .NET Core, C#, ASP.NET Core, Python, FastAPI, React, Next.js, Angular, Blazor, TypeScript, AI chatbot, AI agent, RAG, LLM integration, AI integration, OpenAI GPT-4, Claude, LangChain, Pinecone, AI automation, n8n, Power BI, Azure migration, microservices, API development, ERP integration, EDI, database optimization, MySQL, MongoDB, PostgreSQL, performance optimization, Redis.

I’m a Top Rated Plus (Top 3% of Upwork Talent) .NET Full Stack Developer with 7+ years of experience helping startups and businesses build secure, scalable, and production-ready applications. Give me an idea, a broken system, or a product that needs to scale and I’ll build the right solution around it. If you send me an invitation or message, I can review your requirements and suggest the best technical approach for your project. A little more about me: I help businesses build and improve SaaS platforms, admin panels, dashboards, backend APIs, and full end-to-end web applications using ASP.NET Core, C#, React, Blazor, SQL, and .NET MAUI. From backend architecture and API development to frontend implementation and database optimization, I build systems that are clean, maintainable, and designed for real business use. If your product needs a strong backend, a modern web interface, solid integrations, or a full-stack .NET solution built properly from the start, I can help. • Top Rated Plus (Top 3% of Upwork Talent) • 100% Job Success Score • $80K+ earned on Upwork • 52+ jobs completed • 5,500+ hours worked • Strong experience in ASP.NET Core, C#, React, Blazor, SQL, APIs, and .NET MAUI • Clear communication, clean architecture, and reliable delivery • Experience building business systems, SaaS apps, dashboards, admin portals, and cross-platform apps If you’re looking for someone who understands both the technical side and the business side of software development, and can turn requirements into a solid working product, I’d be glad to help. Core Expertise: .NET Full Stack Development | ASP.NET Core | C# | React | Blazor | .NET MAUI | REST APIs | API Integration | SaaS Development | Admin Panels | Dashboards | SQL Server | PostgreSQL | MySQL | Entity Framework | Dapper | Azure | Clean Architecture | Business Applications | Cross-Platform App Development

I have more than two decades of experience in software development. Everything from 8-bit game machines, many generations of game console to the WebGL and Mobile. I've worked for startups and multi-national corporations, in-house, consultant and freelance. I focus on browser and mobile development now, where my long background and wide experience is effective for dealing with the relatively low performance environment. Front end is usually where I'm at but I'm equally happy to work with the back end to pursue a truly high performance result. Please explore the portfolio and watch the attached video to get an idea of what I can do.

Most AI projects don't fail because of bad models. They fail because the infrastructure around the model wasn't built for production. Fragile prototypes, unpredictable latency, cloud bills that explode at scale, no fallback when things break. That's the gap I close. I'm an AI systems engineer with 25 years of building things that have to work — embedded firmware, distributed systems, and now production AI infrastructure on AWS. I recently architected a production AI receptionist for clinics — handling appointment booking in Hindi and English over a messaging channel API, processing voice notes through a custom STT → intent classification → calendar action pipeline on AWS Lambda and DynamoDB, with sub-2s response times and no persistent server. That kind of end-to-end production constraint is what I work in. What I build: - LLM integration for environments with compliance, multilingual, or integration constraints - AWS serverless architecture for AI workloads — Lambda, DynamoDB, API Gateway, SQS - Messaging channel API pipelines for conversational AI on mobile platforms - Voice AI pipelines — custom STT/TTS architecture and platform integrations - IoT + AI systems for edge intelligence and on-device inference Where I add the most value: You have a working prototype and you're not sure it'll survive real traffic, real users, or a compliance review. Or you're hitting a wall with latency issues, language gaps, telephony quirks — and need someone who has been inside those problems. I come in, map what's actually broken, and fix it or rebuild it properly. How to start: Before committing to a full build, most engagements begin with an Architecture Audit. I review your existing system or concept, identify the failure points, and produce a concrete implementation roadmap. It's a low-risk way to find out exactly what you're dealing with before spending on a full build. If your AI system needs to work — not just demo — let's talk.

I appreciate you visiting my profile and taking the time to go through it. I am Ravinder Kumar Senior Mobile App Developer more than 15+ years of experience in Mobile development. -----------------My Technical Experience ---------------------- 𝗠𝗢𝗕𝗜𝗟𝗘 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦: Swift, Kotlin, Flutter. 𝗕𝗔𝗖𝗞𝗘𝗡𝗗: Node.js, Laravel, CodeIgniter, AWS, Nginx, Docker, Azure. 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘𝗦: MongoDB, PostgreSQL, MySQL, SQLite. 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗: Laravel, JavaScript, Angular, jQuery, Bootstrap, SASS, HTML5, CSS3 ➜ Native iOS Apps: Swift ➜ Native Android Apps: Kotlin, Java, Android Studio, and Android SDK ➜ Hybrid/Cross-platform Apps: Flutter and React Native ➜ Strong knowledge of iOS SDK and main frameworks, including UIKit, AVFoundation, HealthKit, SpriteKit, etc. ➜ Strong knowledge of Android Architecture Components (LiveData, ViewModel, DataBinding, etc) and Dagger framework. ➜ Experience with Google’s Firebase, including Crashlytics and FCM (Firebase Cloud Messaging), as well as push notifications ➜ Experience with integration of payment gateways such as PayPal, Stripe, Braintree, Square, Authorize.Net, Apple Pay, Google Pay, Amazon Pay, Razorpay, etc ➜ Proficient with Google’s Firebase, including Crashlytics and FCM (Firebase Cloud Messaging), as well as push notifications ➜ Proficient with online map SDKs and libraries such as Google Maps SDK, Mapbox SDK, Apple Maps SDK, MapKit, OpenStreetMap, etc ➜ Proficient with WebRTC SDKs like Google WebRTC, Twilio, Sendbird, Agora etc. --------------------Technical Skills------------------ ➜ Social Networking Apps ➜ E-commerce Apps ➜ BLE & IoT Apps ➜ Health and Fitness Apps ➜ Travel and Tourism Apps ➜ Education and E-Learning Apps ➜ Entertainment and Media Apps ➜ Financial Services Apps ➜ Food and Delivery Apps ➜ On-Demand Services Apps ➜ Utilities and Tools Apps ✅ 100% Job Success. ✅ 10000+ Hours Worked. ✅ Top Rated Badge Holder. ✅ 15+ years of Experience Mobile App Development ✅ 24/7 Availability

I'm a versatile and results-driven Full Stack Developer with proven expertise in building high-performance web and desktop applications—along with a growing specialization in AI-powered systems. From front-end interfaces to back-end APIs, and from smart automation to native desktop tools, I bring both technical depth and strategic thinking to every project. ✅ Services I Offer 🔹 Full Stack Web Development • React.js, Node.js, Express, RESTful APIs • MongoDB, MySQL, PostgreSQL, Firebase, Supabase • HTML5, CSS3, JavaScript, jQuery, Bootstrap • Responsive & cross-browser design 🔹 AI & Automation • Machine Learning module integration • OCR (Optical Character Recognition) • Intelligent task automation (Python/C++) • Data analysis and process optimization • n8n workflow automation & integrations • GoHighLevel (GHL) automation, funnels & CRM workflows 🔹 Desktop Application Development • C++ with Qt Framework (Widgets/QML) • Cross-platform GUI tools (Windows/Linux/macOS) • Hardware integration, real-time apps, POS systems • Clean architecture and performance optimization 🔹 CMS & Scripting • WordPress theme/plugin development • PHP, .NET, Java, and scripting automation 💼 Why Work With Me? ✔️ Multi-domain Skill Set From sleek web dashboards to real-time desktop utilities and AI-powered features—I handle it all under one roof. ✔️ Quality-Driven Development Clean, maintainable, and scalable code using best practices, modern patterns, and proper version control. ✔️ Clear Communication & Delivery Regular updates, quick iterations, and full transparency ensure your project stays on track. ✔️ Tailored Solutions Every project is custom-built to solve your exact problem—no templates, no shortcuts. ✔️ Full Lifecycle Support From ideation to post-launch support and scaling, I’ll guide your project every step of the way. Whether you need a full-stack web application, a cross-platform desktop tool, or a custom AI solution, I'm here to bring your ideas to life—efficiently and effectively. Let’s collaborate and build something exceptional together! 🚀

I am a Senior Backend Engineer with deep expertise in building high-performance, scalable, and secure backend systems using Golang, Rust, Ruby, Node.js, and Python. I specialize in distributed systems, API platforms, cloud-native infrastructure, and performance-critical services, helping startups and enterprises architect reliable systems that scale from MVP to millions of users. With a strong background in system design and production engineering, I focus on clean architecture, maintainable codebases, and measurable performance improvements. Core Technical Expertise Backend Languages & Frameworks • Golang (Gin, Fiber, Echo, gRPC, concurrency patterns) • Rust (Actix, Axum, Tokio, async systems, memory-safe high-performance services) • Ruby (Ruby on Rails, Sidekiq, background processing) • Node.js (Express, NestJS, Fastify) • Python (FastAPI, Django, Flask, async systems) Architecture & System Design • Microservices & modular monoliths • Event-driven architecture • High-throughput API design • REST, GraphQL, gRPC • WebSockets & real-time systems • Distributed caching strategies • Horizontal scaling & load balancing Databases & Messaging • PostgreSQL, MySQL • Redis (caching, pub/sub) • MongoDB • Kafka, RabbitMQ, NATS • DynamoDB • Query optimization & data modeling Cloud & DevOps • AWS (ECS, EKS, Lambda, RDS, S3, CloudWatch) • GCP & Azure • Docker & Kubernetes • Terraform / Infrastructure as Code • CI/CD automation • Observability (Prometheus, Grafana, ELK) Specialized Strengths High-Performance Systems (Go & Rust) • Built low-latency APIs handling high request volumes • Designed concurrent systems using Go routines and Rust async runtime • Optimized CPU and memory usage for performance-critical workloads Scalable Web Platforms (Ruby, Node, Python) • Designed large-scale SaaS applications • Built multi-tenant architectures • Implemented background job systems and event processing pipelines • Integrated payment gateways, auth systems, and third-party APIs Security & Reliability • OAuth2 / JWT authentication systems • RBAC and multi-tenant isolation • Rate limiting and DDoS mitigation • Automated testing and performance benchmarking Selected Experience • High-Traffic API Platform (Golang) Architected microservices serving large concurrent traffic with optimized database queries and Redis caching, reducing latency by 45%. • Low-Level Performance Service (Rust) Developed memory-safe, multi-threaded backend service for data processing with significantly reduced memory footprint. • SaaS Platform (Ruby on Rails) Designed multi-tenant backend architecture with background workers and scalable PostgreSQL schema. • Serverless Backend (Node/Python) Implemented AWS Lambda-based backend with event-driven workflows and automated scaling. Professional Background • Master's Degree in Computer Science • Strong system design & architecture mindset • Comfortable leading backend teams and mentoring developers • Clear communication, fluent English • Flexible with global time zones Why Clients Hire Me ✔ Senior-level architectural thinking ✔ Production-grade, scalable backend systems ✔ Clean, well-tested, maintainable code ✔ Strong ownership and delivery focus Let’s Build a Scalable System If you need a backend engineer who understands performance, scalability, and clean architecture across Go, Rust, Ruby, Node, and Python, I’m ready to help design and deliver your next backend platform.

🚀 I am an experienced 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with a strong focus on building intelligent, scalable 𝐖𝐞𝐛 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 powered by modern technologies and AI-driven solutions. I specialize in transforming ideas into high-performing digital products by combining development expertise with the latest advancements in 𝐀𝐈, automation, and cloud technologies. 🤖 With growing demand for smart applications, I also integrate 𝐀𝐈 features like chatbots, recommendation systems, automation workflows, and data-driven insights into applications to give businesses a competitive edge. 🌟 Recognized for my goal-driven approach, fast delivery, effective time management, and strong focus on user experience, I am committed to delivering solutions that are not just functional—but future-ready. 👩🏻‍💻 𝗠𝘆 𝗔𝗿𝘀𝗲𝗻𝗮𝗹 𝗼𝗳 𝗦𝗸𝗶𝗹𝗹𝘀: ✅ 𝑭𝒓𝒐𝒏𝒕 𝑬𝒏𝒅: 𝑴𝒐𝒃𝒊𝒍𝒆 𝑨𝑰-𝒆𝒏𝒂𝒃𝒍𝒆𝒅 𝑨𝒑𝒑𝒔 ➽ React Native | Flutter | Swift | Kotlin | Java ✅ 𝑭𝒓𝒐𝒏𝒕 𝑬𝒏𝒅: 𝑾𝒆𝒃 & 𝑨𝑰 𝑰𝒏𝒕𝒆𝒓𝒇𝒂𝒄𝒆𝒔 ➽ React.js | Angular.js | Vue.js | Next.js | HTML | CSS ✅ 𝑩𝒂𝒄𝒌 𝑬𝒏𝒅: 𝑺𝒄𝒂𝒍𝒂𝒃𝒍𝒆 & 𝑨𝑰-𝒓𝒆𝒂𝒅𝒚 𝑺𝒚𝒔𝒕𝒆𝒎𝒔 ➽ Node.js | PHP (Yii / Laravel) | Python (FastAPI, Django) ✅ 🤖 𝑨𝑰 / 𝑴𝑳 & 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏 ➽ OpenAI API | LLM Integration | Chatbots | AI Agents ➽ Prompt Engineering | NLP | Recommendation Systems ➽ Workflow Automation | Data Processing ✅ 𝑫𝒂𝒕𝒂𝒃𝒂𝒔𝒆 ➽ MySQL | MongoDB | PostgreSQL | Firebase ✅ ☁️ 𝑪𝒍𝒐𝒖𝒅 & 𝑫𝒆𝒗𝑶𝒑𝒔 ➽ AWS | Docker | CI/CD | Hosting | Server Management ✅ 𝑷𝒓𝒐𝒋𝒆𝒄𝒕 𝑴𝒂𝒏𝒂𝒈𝒆𝒎𝒆𝒏𝒕 ➽ Trello | Slack | Jira | Asana ✅ 𝑼𝑰/𝑼𝑿 ➽ Tailwind CSS | Bootstrap | Responsive Design | UX Optimization ✅ 𝑫𝒆𝒔𝒊𝒈𝒏𝒊𝒏𝒈 𝒕𝒐𝒐𝒍𝒔 ➽ Figma | Adobe XD | Adobe Creative Suite 🏆 Throughout the years, I’ve delivered smart and scalable solutions across industries: 🌐📱 𝑪𝑹𝑴/𝑬𝑹𝑷 | 𝑹𝒆𝒂𝒍 𝑬𝒔𝒕𝒂𝒕𝒆 | 𝑨𝑰 𝑺𝒂𝒂𝑺 | 𝑴𝒂𝒓𝒌𝒆𝒕𝒑𝒍𝒂𝒄𝒆 𝑭𝒊𝒕𝒏𝒆𝒔𝒔 | 𝑺𝒕𝒓𝒆𝒂𝒎𝒊𝒏𝒈 | 𝑭𝒊𝒏𝒂𝒏𝒄𝒆 & 𝑰𝒏𝒗𝒆𝒔𝒕𝒎𝒆𝒏𝒕 𝑰𝒐𝑻 | 𝑭𝒐𝒐𝒅 & 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒚 | 𝑺𝒐𝒄𝒊𝒂𝒍 𝑴𝒆𝒅𝒊𝒂 𝑶𝒏-𝑫𝒆𝒎𝒂𝒏𝒅 𝑬𝒅𝒖𝒄𝒂𝒕𝒊𝒐𝒏 | 𝑬𝒗𝒆𝒏𝒕 𝑩𝒐𝒐𝒌𝒊𝒏𝒈 𝑯𝒐𝒔𝒑𝒊𝒕𝒂𝒍𝒊𝒕𝒚 | 𝑭𝒊𝒏-𝒕𝒆𝒄𝒉 | 𝑨𝑰-𝒃𝒂𝒔𝒆𝒅 𝒔𝒕𝒂𝒓𝒕𝒖𝒑𝒔 & more 🤠 𝗪𝗵𝘆 𝘆𝗼𝘂 𝘀𝗵𝗼𝘂𝗹𝗱 𝗰𝗼𝗻𝘀𝗶𝗱𝗲𝗿 𝗺𝗲: *️⃣ 𝑨𝑰-𝑭𝒊𝒓𝒔𝒕 𝑨𝒑𝒑𝒓𝒐𝒂𝒄𝒉: I don’t just build apps—I build smart solutions powered by AI to future-proof your business. *️⃣ 𝑫𝒆𝒄𝒂𝒅𝒆 𝒐𝒇 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆: 10+ years of experience delivering scalable, high-quality applications across industries. *️⃣ 𝑷𝒓𝒐𝒃𝒍𝒆𝒎 𝑺𝒐𝒍𝒗𝒆𝒓: I focus on understanding your business needs and delivering practical, efficient solutions. *️⃣ 𝑪𝒍𝒊𝒆𝒏𝒕 𝑫𝒆𝒍𝒊𝒈𝒉𝒕: 100% commitment to quality, communication, and long-term collaboration. 💡 Approach your next 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 with confidence. By combining 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 with 𝐀𝐈 𝐢𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧, I will help turn your idea into a scalable, intelligent, and impactful digital product. Let’s collaborate to build next-generation web & mobile applications that stand out in today’s AI-driven world. 👍🏽 Thanks!

🚀 Staff iOS Engineer (10+ yrs) — Real-time Video/VoIP & AI Integration I build and fix iOS/macOS apps fast—clean, stable, and ready to ship. Previously at Fanatics (Live & Collect), Agora (macOS Tech Lead), and RingCentral (Staff Engineer). I specialize in two high-value areas: real-time audio/video systems and production AI integration. ✅ Selected impact • Reduced crash rate 10x through systematic stability work (crash/ANR triage, threading, memory) • Improved user NPS +40% via closed-loop quality optimization • Evolved a live platform from viewer-only → full broadcaster (streaming + interactions) • Built ANR monitoring (main-thread blocking detection) → 3x faster issue resolution • Experience shipping for massive-scale consumer products (e.g., bilibili-level traffic) 🎥 Real-time audio/video & streaming (production) • Live streaming & video conferencing: LiveKit / Agora SDK / Amazon IVS • AVFoundation capture/render pipelines, recording/upload, performance tuning • CallKit + PushKit VoIP calling (background, reconnect, audio routes, reliability) • Real-time interactions: auctions, voting, chat (WebSocket / GraphQL Subscriptions) • Screen sharing: iOS App Extension + macOS plugins • Socket/IM architecture experience; solid networking fundamentals (TCP/UDP) 🤖 AI integration • OpenAI / Claude API integration for user-facing features • HealthKit + Apple Watch data pipelines (sleep/HR/activity/workouts) • Prompt & context management, on-device + cloud orchestration for personalized insights 🏗️ Architecture & engineering • Clean Architecture / SOLID, protocol-oriented DI, modular design • TCA & MVVM (migration and coexistence), Swift Concurrency (async/await, Actors) • Swift + Objective-C, pragmatic refactors, long-term maintainability 🧪 Quality & delivery • Tests: XCTest/XCUITest, snapshot tests; TDD when valuable (Quick/Nimble) • CI/CD: Fastlane, Jenkins/GitHub Actions/Xcode Cloud, TestFlight/App Store release • Logging/analytics (e.g., Firebase/Crashlytics) to locate root causes quickly 🛠️ How I work • Start with a short paid assessment → confirm scope, estimate, and risks • Milestones with demos + clear acceptance criteria • Strong communication, pragmatic testing, and maintainable Swift • Available 40 hrs/week, fluent in English, timezone-friendly and responsive 💻 Equipment: Mac Studio (M1 Max, 32GB), dual 28” 4K monitors, 1Gbps fiber. If you’re building live video/VoIP features, integrating AI into an app, or need to stabilize and scale an existing codebase, feel free to message me—happy to review your scope and propose a plan.