I build production-ready web apps and mobile solutions that clients can actually ship — not prototypes. With hands-on experience in C#, ASP.NET Core, Flutter, and SQL Server, I deliver clean architecture and enterprise-grade code that scales. My current focus: integrating AI into real-world applications. I help businesses add LLM-powered features (OpenAI, Claude API, LangChain) into existing .NET systems — from intelligent document processing and chatbots to automated workflows. If you need AI that fits into your stack, not just a demo, I'm the right person. What I work with: → Backend: C#, ASP.NET Core MVC, VB.NET, REST & Web APIs → Frontend/UI: DevExpress, UI3, Razor Views → Mobile: Flutter (cross-platform iOS/Android), Kotlin (native Android) → Databases: SQL Server, MySQL — query optimization, schema design, EF Core → AI/ML: OpenAI API, Anthropic Claude API, prompt engineering, RAG pipelines I've worked with agency clients across business software, ERP Solutions, inventory systems, field service apps, and internal tooling. I understand deadlines, legacy code, and the difference between a clean proof-of-concept and software ready to hand off to a client. If your project needs a developer who won't need hand-holding on architecture, DM me with your brief.

Senior Full-Stack / Platform Engineer and Tech Lead / Architect-Implementer with 18+ years of industry experience, including 4+ years in technical leadership roles, spanning architecture, hands-on engineering, and DevOps. Operating at Staff-level scope across architecture, hands-on engineering, and cross-team technical leadership. A cross-role, cross-stack engineer combining deep execution with product thinking and system- level architecture — consistently delivering high-impact results, owning systems end-to-end from code to infrastructure, CI/CD, and production operations, and ensuring features deliver real customer value, are adopted, and fit naturally within the product. Specialize in rescuing, modernizing, and scaling complex brownfield or legacy systems, applying incremental modernization strategies (e.g., Strangler Fig pattern) and evolving them into maintainable, high-performance architectures using modular monolith, microservices, and event-driven approaches. Operate across the full lifecycle — from greenfield development to architecture, implementation, and production operations, as well as brownfield evolution through incremental modernization approaches. Strong focus on improving and optimizing delivery processes, closing gaps, and eliminating inefficiencies. Building environments where engineers take ownership, move fast, and solve real problems — with room for creativity, initiative, and technical exploration. Emphasis on developer and client experience through clear expectations, fast feedback loops, and bidirectional communication. Processes are shaped to fit the business and product — not copied from “FAANG playbooks” without context. AI-first engineer, using AI as a force multiplier while maintaining strict control over architecture, performance, security, and system integrity.

🚀 Top-Rated Plus iOS Developer with 10+ Years of Mastery 📱 Published more than 15 big and 28 small Apps on App Store 🌐 Innovator in 3D Scanning and ARKit RoomPlan Api expert Expert in Objective-C, Swift, SwiftUI, and Dart | Guided by Apple's Design Principles | Adept in Low-Level C-based Libraries | Fluent in Cloud Messaging and Push Notifications | Git, Mercurial, SVN Guru | Ready to Elevate Your Project to the Next Level! 🚀 I can provide different levels of quality depending on the current requirement of the project relevant to the industry, starting from very rough proof of concepts, ending with the scalable and maintainable project with automation of delivery (CI/CD) and testing (unit/snapshot/UI tests). I have a 100 % project complete record with a good Job Success Score and high client recommendations while working as a freelancer. Thanks for reading. I would love to be considered for your future project! :) Thank you.

Web and eCommerce Design and Development: Figma, Webflow, Shopify I build performance-driven Shopify stores, scalable Webflow ecosystems, and production-ready user interfaces for businesses looking to maximize their online revenue. I bring over 12 years of experience executing clean code and high-end design for venture-backed platforms, digital brands, and global enterprises. Over the past 12 years, I have designed and developed high-performance web systems, managing clean execution for clients such as: E-Commerce and Digital Brands • Stanley Brothers: Web assets and digital infrastructure for the founders and owners of Charlotte's Web and Performance product lines. • The Harvest Companies: High-performance multimedia site and web development for an elite creative firm. • Kunes Auto Group: Scalable platform infrastructure and multi-location web architecture for a network of 40+ dealerships. Venture-Backed Tech and AI Platforms • Dashworks AI: High-end web execution and interface architecture for an AI knowledge platform (Acquired by HubSpot). • Trivie AI: Core UI design and frontend development for a workforce intelligence platform ($16.6M Funded, acquired by Quantum5). • Immerse Education: Globally recognized tech-education platform impacting 7,000+ alumni. Enterprise and High-Scale Operations • Forbes100 Nielsen: Enterprise UI/UX production deployment. • Fortune 5000 CardFlight: Interface infrastructure processing live transactions for 250,000+ client businesses. • Intrax: Global intercultural exchange leader ($3.1M Revenue ecosystem). My work bridges the gap between stunning Figma UI/UX architecture and clean, high-performance Webflow and Shopify development. How I help your business: • Figma UI/UX Design: High-fidelity wireframing, component-driven design systems, and intuitive user interfaces built for clean translation into code. • Webflow and Shopify Development: Production-ready eCommerce stores, advanced CMS architectures, heavy-media loading optimization, and fast-loading web ecosystems. • Global Alignment: 100% bilingual (English and Spanish), ready for seamless team syncs via Zoom. Note: I do not use generic AI copy-paste solutions. I will read your words and type back. My answers will be tailored to your exact project goals. Feel free to review my portfolio below or send an invitation to discuss your next web rollout.

More leads. More sales. A website that converts visitors into paying clients. If your website isn't generating consistent business, it's not working hard enough. I design and develop custom WordPress, Webflow, and Shopify websites that look premium, load fast, rank on Google, and turn traffic into real revenue built from scratch, never from generic templates. From a high-converting landing page to a full e-commerce store, a SaaS website to a complete brand redesign, I handle the entire project: strategy, UI/UX design, development, SEO setup, and launch. WORDPRESS DESIGN & DEVELOPMENT SERVICES: Custom WordPress Website Design & Development WordPress Theme Design & Development WordPress Website Redesign & Revamp WordPress Landing Page Design & Development WordPress Blog & Magazine Website Design WordPress Plugin Integration & Configuration WordPress Speed Optimization & Performance Tuning WordPress SEO Setup & Optimization (Yoast, RankMath) WordPress Security Hardening & Maintenance WordPress Migration & Transfer PSD to WordPress Conversion Figma to WordPress Development WordPress Multisite Setup & Configuration WordPress Bug Fixes & Troubleshooting WordPress Child Theme Development WordPress Custom Post Types & ACF Integration WordPress Membership Sites (MemberPress, Restrict Content Pro) WordPress eLearning Websites (LearnDash, LifterLMS) WooCommerce Setup, Design & Customization WordPress API Integration & Custom Development WordPress Headless CMS Development WEBFLOW DESIGN & DEVELOPMENT SERVICES: Webflow Website Design & Development Webflow CMS Setup & Configuration Webflow Landing Page Design & Development Webflow Responsive Design & Mobile Optimization Webflow Website Redesign & Revamp Figma to Webflow Development Webflow E-commerce Setup & Configuration Webflow SEO Optimization & Setup Webflow Interactions & Animations Webflow Maintenance & Ongoing Support WordPress to Webflow Migration Webflow Client-First Framework Development CRO: Conversion Rate Optimization CRO Audit & Analysis Landing Page Optimization for Higher Conversions A/B Testing Setup & Analysis User Experience (UX) Optimization Call-to-Action (CTA) Design & Placement Sales Funnel Design & Optimization Heat Map Analysis & User Behavior Tracking Checkout Flow Optimization Lead Generation Form Optimization Conversion-Focused Website Redesign SEO: SEARCH ENGINE OPTIMIZATION: On-Page SEO Setup & Optimization Technical SEO Audit & Fixes WordPress SEO (Yoast & RankMath) Webflow SEO Optimization Site Speed Optimization for SEO Schema Markup & Structured Data XML Sitemap & Robots.txt Setup Google Analytics & Search Console Setup Core Web Vitals Optimization SEO-Friendly Website Architecture CRO: CONVERSION RATE OPTIMIZATION CRO Audit & Analysis Landing Page Optimization for Higher Conversions A/B Testing Setup & Analysis User Experience (UX) Optimization Call-to-Action (CTA) Design & Placement Sales Funnel Design & Optimization Heat Map Analysis & User Behavior Tracking Checkout Flow Optimization Lead Generation Form Optimization Conversion-Focused Website Redesign TOOLS THAT DELIVER REAL RESULTS FOR YOUR BUSINESS: Stunning Websites Built Fast: Elementor Pro | Divi | Bricks Builder | Oxygen Builder | Breakdance | WPBakery | Beaver Builder | Gutenberg | Avada Beautiful Unique Designs: Kadence Blocks | Spectra | Cwicly | Greenshift | Premium Template Libraries Professional Themes: Astra | GeneratePress | Kadence | Blocksy | Flatsome | TheGem | OceanWP | Neve | Hello Theme Pixel-Perfect From Your Mockups: Figma | Adobe XD | Photoshop | Illustrator | Canva Pro Blazing Fast Loading Speeds: WP Rocket | LiteSpeed Cache | Smush | ShortPixel | Cloudflare | GTmetrix Easy For You To Manage: ACF | Gravity Forms | WPML | WooCommerce | UpdraftPlus Higher Google Rankings: Yoast SEO | RankMath | Google Analytics | Google Tag Manager | Google Search Console Beautiful Webflow Sites: Webflow CMS | Client-First Framework | Finsweet | Relume Always Secure & Backed Up: Wordfence | UpdraftPlus | SSL Setup | Security Hardening Smooth Project Delivery: Slack | Trello | Notion | ClickUp | Zoom | Loom Ready to grow your business online? Send me your project details, platform, goals, and timeline, and I'll reply within a few minutes with a clear plan and honest estimate.

How to eliminate overengineering without adding spaghetti code with the best programmer and thinker in Central America. Carlos Alonzo. I consider myself a problem solver, I always analyze any issue in the developing process, find the root cause of the problem and design a solution for it, during all my years of experience I had developed the natural ability of fast adaptation for any new project and the challenges that it might bring over to the table, the reason why I do not rest until reaching the highest level of quality, I am addicted to success. My areas of specialization are Laravel, React, and Vue by using these tools I had opened my road during all these years of experience making possible what looked to be impossible to materialize from the idea of my customers this is a clear example of that; Booking Spot for Players (PHP + Laravel + jQuery + React): consists of a customer being able to purchase N number of spots in a game. The payment was requested with Moneris API (accepting MasterCard, VISA credit/debit cards). In the provider panel, can offer their facilities or locations for hosting a game. Can create future games, delete or update them. just allow me a couple of minutes of your time to talk to you about my goals and experience. These are the goals that I always have in mind every time that a project or task is assigned to me, first of all, I make a list of the requirements to determine the desired range of the project, after that I Plan all the scopes based on the time required, by this point is necessary to take some time to think how to avoid and manage any problem or issue on the developing process, is necessary to keep a well-organized structure on the project itself and a fluent communication with my customer to be able to deliver progress on a regular basis and finally but not less important my final goal to accomplish success is Checking the results with the right tools making sure in that way the final product to be deliver is exactly what the customer wanted and with best quality ever. My experience has been and long road, full of learning opportunities and knowledge gains that have sharped and shaped into the kind of professional that I am right now, Specialized in business, commercial, Logistic (Reservations systems), financial systems (Financial report systems, Payment systems), shopping systems and Admin systems. (Corporate documents storage systems). Between less effort is invested in improving our skills less of a programmer we can be called Read it, learn it, apply it, read more, learn more and Evolve, never stop in the quest for excellence.

AVAILABLE NOW! I have a Finance MBA, Project Management Professional Certification (PMP), and over 15 years of data analysis, data modeling, conversion, and building models, analytics, and dashboards using MS Excel and VBA. I also work with Google Sheets for data analysis and reporting. My focus is on Data Conversions, Dashboards, and Automation. Over 400 clients on Upwork have been happy with my work.

I help startups, founders, and businesses build, launch, and scale high-quality mobile applications for iOS and Android. With extensive experience in Flutter, React Native, Firebase, REST APIs, and cloud-based architectures, I specialize in developing production-ready applications that are fast, scalable, and built for long-term success. Whether you need a new MVP, feature development, bug fixing, app modernization, backend integration, or App Store deployment, I can take ownership of the entire mobile development lifecycle from planning and architecture to launch and ongoing maintenance. My expertise includes: 📱 Mobile App Development • Flutter (iOS & Android) • React Native • Native iOS Integration • Cross-platform Architecture • App Store & Google Play Deployment ⚙️ Backend & APIs • Firebase Authentication • Firestore & Realtime Database • Supabase • REST API Integration • GraphQL APIs • Node.js Backends • ASP.NET Core API Integration 🔔 Advanced Mobile Features • Push Notifications (FCM) • Google Maps & Live Tracking • Geolocation Services • Deep Linking • QR Code Systems • Offline Synchronization • Payment Gateway Integration • Stripe • RevenueCat Subscriptions • Social Authentication ☁️ Cloud & DevOps • GitHub & Git Workflows • CI/CD Pipelines • Firebase Cloud Functions • AWS • Vercel • Cloud Deployment 💡 Projects I Frequently Work On • Startup MVPs • SaaS Mobile Applications • Healthcare Apps • Marketplace Platforms • Booking Systems • Logistics & Tracking Apps • FinTech Applications • Business Management Systems • Subscription-Based Apps • AI-Powered Mobile Applications Why clients work with me: ✔ Clean, maintainable code ✔ Fast communication ✔ Strong problem-solving skills ✔ Experience taking over existing codebases ✔ Production-focused development ✔ Long-term support and maintenance I focus on delivering reliable, scalable mobile applications that provide real business value—not just working code. Let's discuss your project and bring your app idea to life.

$350K+ earned across 62 Upwork projects. Top Rated. I build AI-powered automation systems, intelligent agents, and data pipelines in Python. What I deliver: • AI Agents & LLM Integration — Building autonomous agents, RAG pipelines, and Claude/OpenAI API integrations that solve real business problems. • Intelligent Automation — From browser automation to full workflow orchestration, I build systems that replace manual processes with AI-driven ones. • Web Scraping & ETL at Scale — Production-grade data extraction systems handling 50K+ products across 40+ suppliers with zero manual intervention. • Full Stack Development — Django/Flask + React, deployed on AWS/Azure with CI/CD. Security-first approach backed by a cybersecurity background (CTFtime rank #31 globally). I don't just integrate APIs — I architect systems where AI does the heavy lifting. Let's talk.

⚡️Enjoy top service and high quality work, ✨ I'm here to help you succeed. 💎 22+ years of experience I'm a developer with experience in building and deploying applications end-to-end. From front-end, to back-end, including database, user experience and interface, cloud architecture, test automation, etc. It doesn't matter the kind of requirement, problem that needs to be solved, or an entire project up and running, you can count on me. 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆: Web & Desktop Application Development (Frontend: HTML, CSS, JavaScript, React | Backend: PHP, Laravel, Node.js, Python) Mobile Application Development (React Native) Database Design & Programming (SQL, MySQL, optimization) 𝑲𝒆𝒚 𝑻𝒆𝒄𝒉𝒏𝒐𝒍𝒐𝒈𝒊𝒆𝒔: Frontend: HTML, CSS, JavaScript, React Backend: PHP, Laravel, Node.js, Python (Django, Flask) Databases: SQL, MySQL, PostgreSQL, NoSQL Mobile: React Native, Flutter Security: Data encryption, secure development 𝑰𝒏𝒅𝒖𝒔𝒕𝒓𝒊𝒆𝒔 & 𝑺𝒆𝒓𝒗𝒊𝒄𝒆𝒔: SaaS Development (Custom platforms, subscription models) API Development & Integrations Data Scraping & Automation Third-Party Integrations (QuickBooks, Stripe, PayPal, Twilio, AI integrations) 𝑺𝒆𝒓𝒗𝒊𝒄𝒆𝒔 𝑶𝒇𝒇𝒆𝒓𝒆𝒅: Full-stack development (Web, Mobile, Desktop) Database Design & Optimization Troubleshooting & Debugging Consulting & Project Management for enterprises With my extensive experience, I ensure that enterprise-level projects are delivered efficiently and meet business goals. I’m known for my attention to detail, problem-solving skills, and collaborative approach. Let’s work together to bring your project to life!