Top Rated Full Stack Developer | Web & Mobile App Developer | AI Integrations, SaaS & Scalable Web Application | MERN Stack, React.js, Next.js, Node.js, Nest.js, Python, Django, PHP. Flutter, React Native, kotlin, Swift Most developers list what they know. I'll show you what I've shipped. I build scalable SaaS and AI-powered backend systems that turn ideas into production-ready products. Not templates. Not demos. Real systems used by real users. Over the last 10+ years, I’ve worked on large-scale production systems including telecom platforms, live streaming applications, and AI-driven products serving thousands of daily users. 🟣 Featured Work 🧠 AI News Platform Built a full AI content pipeline processing 15,000+ articles daily from 500+ sources. ✅ AI summarization & content generation ✅ Automated video generation workflows ✅ Multi-platform publishing (Facebook, Instagram, YouTube) ✅ Bilingual support (Arabic + English) ✅ Scalable backend architecture Stack: Next.js, NestJS, OpenAI, HeyGen, Paddle 🏥 Hospital Management System (Shifa International Hospital) Full enterprise-grade HMIS: ✅ Patient registration & scheduling ✅ Billing and role-based access control ✅ Secure backend architecture ✅ Oracle-based data system ⚡ Job Portal MVP Built and delivered a complete job platform MVP that replaced a paid SaaS subscription for the client. 📡 My Nayatel App Live systems used by thousands of users daily. ✅ Billing + usage tracking system ✅ Broadband management tools 📡Naya TV ✅ 130+ live channel streaming platform ✅ iOS, Android & Android TV apps 🟡 What I Can Build For You If you're building a product, I can help you with: ✅ SaaS applications with scalable architecture ✅ AI integrations (OpenAI, Claude, automation workflows) ✅ Backend systems (APIs, databases, microservices) ✅ Web apps using React, Next.js, Node.js ✅ Mobile apps (React Native / Flutter) when needed ✅ Legacy or AI-generated code cleanup & restructuring 🟢 Tech Stack Frontend: React, Next.js, TypeScript, Tailwind, ShadCN Backend: Node.js, NestJS, Express, Django, Laravel Mobile: React Native, Flutter (iOS & Android) Databases: PostgreSQL, MySQL, MongoDB, Redis AI Integration: OpenAI, Anthropic, automation workflows Cloud: AWS, Docker, Kubernetes, Vercel, GitHub Actions Payments & APIs: Stripe, Shopify, Paddle, Mapbox 🔵 How I Work I don’t just code features, I design systems. That means: - Clean architecture from day one - Scalable backend structure - Secure API design - Maintainable codebases for long-term growth I also use modern AI tools to accelerate development without compromising engineering quality. 🟣 Ideal Clients I specifically work with SaaS founders and startups building products that need strong backend architecture and AI integration. 🟢 Let’s Build If you’re building something serious and need a developer who understands both product and engineering, send me a message. I respond within 24 hours. Keywords: Full Stack Developer| Full Stack Expert | Full Stack Specialist | React Developer| Node.js Developer| MERN Stack Developer| Backend Developer| React.js | Node.js| Senior Full Stack Developer| Full Stack Specialist | Full Stack Developer| Full Stack Developer Full Stack Developer| React.js Full Stack Developer| Full Stack Developer| Full Stack Developer| Node Full Stack Developer| Node Full Stack Developer| Full Stack Developer| full stack developer| MERN Full Stack Developer| Saas Full Stack Developer| React Full Stack Developer| AWS Full Stack Developer| Full Stack| Full Stack Developer| React Full Stack Developer| MERN Full Stack Developer| Nodejs Full Stack Developer| full stack developer| Nodejs Full Stack Developer| React Full Stack Developer| Senior Full Stack Developer| Full Stack Developer Expert |Full Stack Dev l Stack Developer (React / Node.js) |Full Stack Developer| Full Stack Web Developer| Full Stack Developer|React / Next.js Developer| React Full Stack Developer | React Developer| Full Stack Developer| React Full Stack Developer|Node Developer| Node.js| Full Stack Developer| Node Backend| React Node Expert | Full Stack Developer|

FinTech, Marketplace and SaaS developer. 19 years. $10M+ earned on Upwork via Ronas IT — 1,829 jobs, 100% Job Success Score, Top Rated. I lead a remote team. I'm hands-on on every FinTech build - solution architecture, scope, and release sign-off. Cases: - US neobank - 7-microservice core, Bond + Persona + Sardine + Plaid, SOC 2 path passed on our side - EU neobank - 6-month MVP under PSD2 / AMLD / GDPR, Solaris BaaS + Trulioo KYC - AU travel payments - Stripe + 3DS2 + PayTo / PayID + FingerprintJS Pro, 10 weeks kickoff-to-launch - Docky - Malta yacht-berth marketplace on Stripe SetupIntent + Identity - Hamperapp Miami - on-demand marketplace - Lainappi Finland - P2P rental marketplace on Stripe Connect - UAE marketplace - Arabic RTL + English LTR with OpenAI shopping assistant - $130K B2B SaaS - real-time project management dashboard adopted by 100+ teams - 8-year forex / social-trading platform - real-time trading dashboard - KYC redesign for Digital Finance International - review collapsed from hours to ~1 minute - 14-year FinTech engagement with AA Global Group (London) Stack: - Backend - Node.js, Laravel, Django, PHP, Python, Express, NestJS, FastAPI - Frontend - React, Next.js, TypeScript, Tailwind, REST API, GraphQL - Mobile - React Native, iOS, Android, Expo, EAS, Firebase - Data - PostgreSQL, MongoDB, Redis, Elasticsearch, Supabase - Cloud - AWS, GCP, Vercel, Docker, Kubernetes, Terraform - Architecture - Microservices, Multi-tenant SaaS, Real-time, Cross-platform mobile - Payments - Stripe, Stripe Connect, Plaid, 3DS2 - AI - OpenAI, Generative AI, AI Agents, RAG, LangChain - Compliance shipped - PSD2, AMLD, GDPR, PCI DSS, SOC 2 path, HIPAA, ISO 27001 Ronas IT - 50-70 remote specialists, Estonian entity in Tallinn, Google Cloud Partner, Awwwards Honorable Mention 2024. I'm CEO and co-founder since 2007. Same engineers scope and ship your build - no handoff from sales to delivery. How I work - discovery sprint, architecture + threat model, MVP, audit readiness. Engaged from $5K prototype to $300K neobank build. Send the regulator letter, the audit finding, the integration spec, or just a 3-line problem statement.

I am a full stack web and mobile developer, cloud architect with 12 plus years of experience building infrastructure, backend systems and AI powered applications for startups and enterprises. If your idea is still rough or not fully thought through, I can help shape it into a real plan and build it from there. Difficult problems do not scare me off either. Systems that keep failing, bottlenecks nobody has cracked, I actually enjoy digging into that kind of work. My work covers four areas that usually need separate people, 𝙄 𝙝𝙖𝙣𝙙𝙡𝙚 𝙖𝙡𝙡 4 𝙢𝙮𝙨𝙚𝙡𝙛. 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 React, Next.js, Node.js and FastAPI, from database schema to frontend, I build and maintain the full application, not just one layer of it. 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 AWS infrastructure using Terraform, Docker, Nginx, and CI/CD pipelines with GitHub Actions. I design systems that stay stable and scale without constant firefighting. 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 RAG pipelines, LLM integration, AI agents and chatbots built on OpenAI and other model APIs, used in real production apps, not demos. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Flutter and React Native apps built end to end, from UI to backend integration, for clients who need a mobile product alongside their web platform. I also write documentation and structure projects so your team can pick up the work later without confusion. Building something that needs to scale? Let us connect and talk about it. I stay responsive throughout, usually replying within a few hours, so things keep moving 👍

Stop losing time, money, and momentum on developers who ship code, but not products. I help founders and startups build scalable SaaS platforms, MVPs, and mobile apps that are designed for growth, speed, and long-term maintainability. 𝐖𝐢𝐭𝐡 𝟓𝟎𝟎+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐚𝐧𝐝 𝟏𝟒𝟎𝟎+ 𝐡𝐨𝐮𝐫𝐬 𝐨𝐟 𝐡𝐚𝐧𝐝𝐬-𝐨𝐧 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 , I don’t just write code, I think like a product partner. Whether you're launching your first MVP, scaling an existing platform, or fixing technical debt, I bring the engineering clarity needed to move fast without breaking things. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐠𝐞𝐭 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞: ✅ Product-First Development I identify UX bottlenecks, scope risks, and technical gaps before they become expensive mistakes. ✅ Scalable Engineering Clean, modular, maintainable architecture your future team will thank you for. ✅ Clear Communication Daily updates, honest timelines, zero disappearing acts. ✅ Reliable Delivery Milestone-driven execution with predictable outcomes. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 SaaS & MVP Development Auth systems, subscriptions, admin panels, dashboards, API integrations. Mobile App Development Cross-platform apps with React Native + Expo (iOS & Android). High-Performance Backends Node.js, WebSockets, Redis, real-time systems. Modern Full-Stack Development React, Next.js, TypeScript, PostgreSQL, MongoDB, Amazon Web Services. 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 1. Discovery – Understand your product, goals, and bottlenecks 2. Strategy – Define scope, milestones, and architecture 3. Build – Fast, iterative delivery with complete visibility 4. Launch – Documentation, deployment, and post-launch support If you're building something serious, and need someone who thinks beyond code, send me your idea, current stage, and biggest challenge. I’ll tell you exactly how I’d approach it.

CRM : SALESFORCE, HUBSPOT, MONDAY.COM,, ZOHO, KONNEKTIVE, SUITE, JOBNIMBUS AND OTHER OPEN SOURCE CRM. Odoo ERP Microsoft SQL SSIS ETL Developer : MS SQL Server, SSDT, SQL Agent Jobs, Linked Servers and SSIS. Full Stack Skills At A Glance: • LAMP, MEAN, MERN, NERD, Django, RoR Stack • PHP, Python, ASP.NET, Node.js, Ruby, JavaScript ES6-8, TypeScript • Laravel, Symfony, CodeIgnitor, Yii • MySQL, MongoDB, DynamoDB, PostgreSQL, MSSQL, Firebase, Parse Server • Angular, React JS, Vue.js, MeteorJS, ExtJS • React Native, Redis, Redux, Redux-Saga, GraphQL • Next.js, Nuxt.js, GatsbyJS, Jekyll and Hugo. • HTML5, CSS3, jQuery, Ajax, Bootstrap, Semantic UI • Responsive Design, REST API • Cordova, Ionic, PhoneGap, Xamarin, Electron • Phaser, LimeJS, ThreeJS, WebGL, Cocos2D, Unity3D • Facebook, Twitter, Google, YouTube API • Trello, Pivotal, Jira Scrum&Kanban, Confluence, Asana • Git, SVN, Github, Gitlab, Bitbucket

✨ Top-Rated Plus on Upwork ✨ 100% Job Success Score ✨ 11K+ Hours Worked | 7+ Years of Experience ✨ Multi-Channel E-commerce Manager Hi, I’m Majid Ali from Pakistan. 🙋🏼‍♂️ I specialize in managing and growing e-commerce businesses across multiple platforms. My expertise includes Amazon, Walmart, eBay, Shopify, Wayfair, and Etsy, with strong skills in product listing, SEO, listing optimization, keyword research, and ranking maintenance. My goal is to consistently deliver high-quality, reliable service while helping clients grow their online business. I am committed to continuously improving my skills and providing exceptional results that meet and exceed expectations. Services I Offer: Amazon Seller Central ✅ Variation creation and fixes ✅ Brand updates & Brand Registry support ✅ Complex flat file management ✅ Category approvals / Ungating ✅ Listing uploads & modifications ✅ Inventory management & FBA operations ✅ Enhanced Brand Content / A+ Content ✅ Product image editing (Photoshop / white background) Amazon Vendor Central 🔗 Purchase Order (PO) management 🔗 Reimbursements & chargeback resolution 🔗 Bulk listing updates via NIS files 🔗 Variation creation & content updates 🔗 Suppressed listing issue resolution 🔗 Inventory & PPC management Walmart ✅ Bulk listings & WFS shipment management ✅ Inventory planning & order processing ✅ Listing variations & SEO ✅ Campaign optimization & ranking improvement eBay 🔗 Listing creation (single & variations) 🔗 Competitor & keyword research 🔗 Storefront setup & scheduling 🔗 Customer service & order processing Shopify ✅ Full store management & product listing ✅ Variation creation & SEO ✅ Category setup & front-end customization Other Platforms 🔹 Wayfair | Home Depot | Etsy | Houzz | Lumens | Faire Tools I Use: Product & Keyword Research: Helium 10, Keepa, Jungle Scout, MerchantWords Repricing: BQool, ChannelMAX, Seller Snap Inventory Management: Skubana, Restock Pro, Expandly Project Management: Asana, Salesforce, Notion, Airtable I combine motivation, organization, and technical expertise to ensure your projects are handled efficiently, accurately, and with care. If you want a dedicated and experienced freelancer to take your e-commerce business to the next level, send me a message on Upwork and let’s schedule a strategy call to discuss your goals. •.,¸¸,.•´¯💥Thank You💥¯•.,¸¸,.•´

I help startups and founders turn ideas into scalable SaaS products using React, Node.js, and AWS from initial concept to production-ready MVP. Over the past 10+ years, I’ve worked on multiple SaaS platforms, focusing on fast delivery, clean architecture, and long-term scalability. What I can help you with: Build your MVP from scratch (frontend + backend + cloud) Turn your concept or Figma designs into a working product Design scalable backend architecture (Node.js, PostgreSQL) Set up cloud infrastructure (AWS, CI/CD, deployments) Improve and refactor existing SaaS applications 💡 I don’t just write code - I help you make product and technical decisions to launch faster and avoid costly mistakes. 🧩 Relevant Experience 🔹 SaaS MVP Development Built multiple MVPs from scratch with React + Node.js Delivered production-ready apps within tight timelines Helped founders validate ideas and go to market faster 🔹 Backend & Architecture Designed scalable APIs (Node.js, Express/NestJS) Database design (PostgreSQL, MongoDB) Authentication, multi-tenant systems, integrations 🔹 Frontend Development React (hooks, state management, performance optimization) Clean UI implementation from Figma / designs 🔹 Cloud & DevOps AWS (EC2, RDS, S3, Lambda) CI/CD pipelines, Docker Deployment and monitoring setup AI-Driven Development Approach In addition to traditional software engineering, I actively use modern AI tools and workflows to accelerate development, improve code quality, and deliver solutions faster. My approach combines full-stack engineering expertise with AI-assisted development, allowing me to rapidly design architectures, generate reliable code components, automate repetitive tasks, and prototype complex features. By integrating AI into the development workflow, I can significantly reduce development time while maintaining high standards of scalability, performance, and maintainability. 📈 Example Outcomes Built MVP for a SaaS platform in 8–10 weeks from scratch Reduced infrastructure costs by 30% through AWS optimization Improved API performance by 2–3x for high-load applications ⚙️ Tech Stack React, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, Docker, REST APIs, CI/CD 📩 If you’re looking to build or improve your SaaS product — feel free to reach out. Happy to jump on a quick call and discuss your idea.

🚀 Are you struggling to rank on Google? Looking for an SEO expert who delivers results and ROI? You're in the right place. I'm an SEO Expert with proven experience in On-Page SEO, Off-Page SEO, Technical SEO, and AI-Driven Search Optimization - helping businesses grow online with real, measurable results. Whether you're a startup, local business, e-commerce store, or SaaS company, I build SEO strategies tailored to your goals. 🔍 My SEO Services Include: ✅ On-Page SEO • Advanced keyword research (LSI + long-tail) • Meta tags, content optimization, internal linking • Core Web Vitals & UX improvements • SEO audits with action plans ✅ Off-Page SEO • High-quality backlink building • Guest posting & white-hat outreach • Local citations & NAP consistency • Competitor link analysis ✅ Technical SEO • Site speed & mobile optimization • Schema markup & structured data • Crawlability & indexation fixes • XML sitemaps, robots.txt, canonical tags ✅ AI Search Optimization • Optimizing for ChatGPT, Perplexity, Gemini • Featured snippets & voice search readiness • AI-prompt structured content strategies 🧰 Tools I Work With: Ahrefs, SEMrush, Surfer SEO, Frase, Screaming Frog, GA4, GSC, ChatGPT, Rank Math, Yoast, WordPress, Shopify & more. 📈 Why Clients Choose Me: ✔️ 100% white-hat SEO strategies ✔️ Clear communication & weekly updates ✔️ ROI-driven, long-term growth approach ✔️ Deep competitor & market analysis 🔗 Let’s turn your website into a traffic magnet and convert clicks into customers. 📩 Message me to get your SEO strategy in motion!

📢 Feeling Lost in the Marketing Maze? Get A FREE Strategy Session to Find Your Path. 📈 Scaling Businesses With Ai & Data-Driven Google Ads, Fb Ads & Marketing Analytics ⭐$2 Million/Year Managed ⭐55+ Digital Marketing Certifications ⭐7+ Years Of in-depth experience ⭐60+ Unique Success Stories Of Exceeding Expectations ⭐Skilled in Leveraging Ai & Data In Marketing ⭐Get AI & Data on Your Side ⭐Preemptive Problem Solving ⭐Crystal-Clear Communication 📌Stop the Ad Drain and Start Seeing Results! 🧩Are you tired of pouring money into Ads that don't generate Leads & Sales? You're not alone. Many businesses struggle with the complexities of online advertising, leaving them frustrated and lost in the maze. But it doesn't have to be this way. 💪 I'm not just another Google Ads expert. I'm a Ai ✨& Data-Obsessed Marketing Strategist 🧑🏼‍💻 with a proven track record of turning ad spend into profit for businesses like yours. Here's why I'm different: 📌Laser-Focused Results: Forget vanity metrics. My focus is on delivering results that matter, whether it's increased sales, qualified leads, or brand awareness, tailored to your specific goals. 📌Deep Industry Expertise: I've helped businesses in a wide range of industries ( 50+) unlock their PPC potential. No matter your niche, I can craft a data-driven strategy that resonates with your target audience. 📌Data-Driven Optimization with AI: I leverage cutting-edge data analysis and AI to constantly refine your campaigns and squeeze every drop of value from your ad spend. You get the power of AI and data on your side, with preemptive problem-solving to stay ahead of issues. 📌Unparalleled Google Ads Knowledge (45+ Certifications): I'm not just certified, I'm a PPC insider with intimate understanding of the platform. My expertise ensures you stay ahead of the curve and use the latest features to your advantage. 📌Crystal-Clear Communication: You'll never be left in the dark. I provide clear communication and regular reports, so you can always see the impact of your campaigns. 🏆Your Roadmap to PPC Success in 5 Easy Steps Working with me is a collaborative journey towards achieving your advertising goals. Here's a simplified breakdown of the process: ➡️1. Free Consultation: Let's chat! We'll discuss your business goals, target audience, and any existing campaigns you might have. This is your chance to ask questions and get to know me. ➡️2. In-Depth Campaign Audit: Want to see what's working (and what's not) with your current campaigns? I'll analyze them thoroughly and provide actionable recommendations for improvement. This way, we can hit the ground running with a clear understanding of your current state. ➡️3.Building Your Winning Strategy: Together, we'll craft a data-driven strategy tailored specifically to your needs. I'll recommend the optimal ad channels, campaign types, and key metrics to track based on your unique goals (e.g., increased sales, brand awareness, or lead generation). ➡️4. Launching Your Campaigns: Leave the technical setup to me! I'll handle everything from keyword research and ad copywriting to campaign launch, ensuring your ads reach the right audience at the right time. ➡️5. Ongoing Optimization & Reporting: My work doesn't stop there! I'll constantly monitor and refine your campaigns for maximum performance. You'll receive regular, easy-to-understand reports that track your progress and show the impact of your campaigns. 🚀My Skills & Services: 📌Google Ads ✔️Account Audit ✔️Google Ads Conversion Tracking ✔️Optimization as Per Google's Latest Best Practices & Industry Tactics ✔️Campaign Management & Reporting ✔️Search, Display, Smart, Performance Max, Lead-Gen, YouTube Campaigns ✔️Bidding Strategy Optimization ✔️Remarketing 📌GTM ✔️Lead GA4 migration ✔️Define and implement tagging strategy in Google Tag Manager for data collection in both Universal Analytics and GA4 that meets business goals/objectives ✔️Setting up goals, tags, variables & Triggers 📌Google Analytics 4 & GA4 Migration ✔️Integration & trackings ✔️Debug, and troubleshoot data collection and configuration issues, surface anomalies, and other data trends ✔️Setting up audiences, custom reports ✔️Identify data patterns (positive or negative) as they impact advertising campaigns underway, along with site usability or performance. ✔️Creating Dashboards ✔️Present and effectively communicate data and insights 📌Facebook advertising campaigns ✔️Writing Copy for Facebook Ads ✔️Audiences ✔️Craft landing pages and Lead Generation Forms ✔️Facebook Pixel setups through GTM as well ✔️Measurement & Optimization ✔️Facebook campaigns management ✔️Facebook Dynamic retargeting 📌Contact For Advanced Ai & Data Driven Google, YouTube, Bing, Fb Ads Setup, Google Analytics 4 & Google Tag Manager Services Ready to unlock the true potential of your PPC campaigns? Let's work together to turn your ad spend into a profit engine for your business. M.Abdullah

🏆 Top-Rated Full Stack Developer | 10+ Years of Experience I help startups, SaaS businesses, and enterprises build scalable web applications, mobile apps, APIs, and AI-powered solutions that are reliable, secure, and built for growth. Over the past 10+ years, I have worked with clients across various industries, turning ideas into successful products and helping businesses improve existing systems. Whether you need a new MVP, a complex SaaS platform, a mobile application, AI integration, or ongoing development support, I can help deliver a solution that meets your business goals. My expertise includes full-stack development using Go, Python, Django, FastAPI, Node.js, NestJS, Laravel, React, Next.js, Vue.js, and Angular. I have extensive experience designing REST and GraphQL APIs, building microservices, developing real-time applications, integrating third-party services, and optimizing application performance. I am also experienced with cloud infrastructure and DevOps practices, including AWS, Docker, Kubernetes, CI/CD pipelines, and database management with PostgreSQL, MySQL, MongoDB, and Redis. In addition to traditional software development, I build AI-powered applications using OpenAI APIs, GPT integrations, LangChain, RAG systems, machine learning models, and intelligent automation solutions that help businesses increase efficiency and improve user experiences. What I can help you with: • Full Stack Web Development • SaaS Application Development • MVP Development for Startups • AI Chatbots & GPT Integrations • API Development & Integrations • Mobile App Development • Cloud Deployment & DevOps • Microservices Architecture • Database Design & Optimization • Performance & Scalability Improvements Why clients work with me: • 10+ years of hands-on development experience • Clean, maintainable, and scalable code • Strong communication and transparency • Reliable delivery and proactive problem-solving • Long-term support and collaboration mindset If you're looking for a developer who can understand business requirements, communicate clearly, and deliver high-quality solutions from planning to deployment, I'd be happy to discuss your project. EXPERT SKILLSET : Full Stack Developer, React Developer, Next.js Developer, Python Developer, Django Developer, FastAPI Developer, Node.js Developer, Golang Developer, AWS Developer, SaaS Developer, AI Developer, GPT Integration, OpenAI API, Mobile App Developer, DevOps Engineer, API Development, Cloud Architecture, Microservices, Startup MVP Development.