I help founders and teams build scalable web applications, AI-powered products, and automation systems that are clean, reliable, and ready for real users. With 8+ years of full-stack experience, I work across React, Next.js, Node.js, Python, Django, NestJS, and modern cloud stacks to turn ideas into polished digital products. I also specialize in building AI-powered solutions, including LLM applications, RAG systems, intelligent workflows, and automation tools. My focus goes beyond writing code—I build systems that are fast, secure, easy to maintain, and aligned with real business goals, helping teams reduce manual work and make smarter decisions. Recent wins: ➢ Design to Run — Rebuilt data workflows for a political organization, reducing manual work by 50%. ➢ StrainBrain — Built an AI recommendation engine that increased cannabis eCommerce conversions by 23%. What I can help with: • Full-stack web apps and SaaS platforms • AI automation and LLM integrations • RAG systems and vector search • Agentic AI workflows • API integrations, dashboards, and internal tools • Cloud deployment, CI/CD, and scalable backend systems Clients choose me for clear communication, strong ownership, and practical solutions that move projects forward. If you need a developer who understands both product and engineering, I’d be happy to help.

Charlie Maere is a seasoned Information Technology expert with over 18 years of senior-level experience. He currently serves as the Global Digital Health and Data Analytics Director at the Elizabeth Glaser Pediatric AIDS Foundation. His areas of expertise span across multiple domains, including: Project Management Software Development, with proficiency in: Languages & Frameworks: Python, PHP, Angular, Ionic, Java, C++, Swift, C, C#, Ruby on Rails, JavaScript, Android, Flutter, React, Vuejs, nodejs. Hybrid/Mobile App Development Web Development Artificial Intelligence and Computer Vision, including: Retrieval-Augmented Generation (RAG) Large Language Models (LLMs) Computer Vision Predictive Modeling Classical Machine Learning Algorithms Firmware Development Cloud Computing, with experience in: AWS (Amazon Web Services) Microsoft Azure Systems Administration and Cybersecurity Strategic and Operational Planning Organizational Design and Scalable Network Architecture Information Systems and Machine Learning Collaborative Tools and ICT System Development Charlie’s work is driven by a passion for innovation and digital transformation, particularly in strengthening ICT infrastructure and data-driven solutions within global health and development ecosystems.

SWISS-GRADE ARCHITECTURE FOR FLUTTER & SUPABASE Building a mobile app is easy. Building a mobile app that scales, handles data securely, and doesn't crash under load is an engineering challenge. I am a Senior Software Architect specializing in high-performance Flutter applications and Supabase backends. I bring 10+ years of experience in the Swiss banking and fintech sector to your project. WHAT I DELIVER: ► Security First: I implement strict Row Level Security (RLS) policies in Supabase to ensure your user data never leaks. ► Clean Code: I write strictly typed, modular code (Clean Architecture) that is easy for other developers to read and maintain. ► Performance: I optimize database queries and Flutter rendering to ensure great performance even on older devices. MY SERVICES: • Full-cycle Flutter App Development (iOS & Android) • Supabase Database Design & Optimization • Code Reviews & Security Audits • State Management Implementation (Riverpod / BLoC) If you are looking for a developer who values precision, communication, and long-term stability over quick fixes, let’s connect.

Engineering leader with 18 years at Intel and Workday, now available for fractional and contract engagements. I've built and managed global teams of 18+ developers, standardized estimation practices across multiple Scrum teams, and served as the go-to technical escalation point for 75+ university clients on a major SaaS platform. I've build out and delivered rally-rank - a mobile first app delivered to both the google play store and the apple app store. I've also consulted for the sherard show - a content management platform using AWS for video and content delivery. I also do hands-on technical audits — codebase reviews, architecture assessments, process evaluations — backed by real operational experience, not just theory. Recently shipped a React Native app (iOS + Android) end-to-end to stay sharp on the tools your developers are using. BS in Computer Science & Mathematics, Cal Poly Pomona. Strongest in fintech, SaaS, and mobile. I'm well versed in Claude Code. I can help you with your development workflow and train you how to use Claude Code so that it optimizes your development flow.

Free initial consultations to go over your project details! I am a skilled software developer with expertise in custom full-stack applications (website/iPhone/Android) and CRM integrations. I have several years of experience working with Zoho CRM, Zoho Creator, Zoho Desk, Zoho Books, Salesforce, Shipstation, HelloSign, Shopify, and QuickBooks. I specialize in developing custom web applications and scripts to simplify business workflows. My qualifications include but are not limited to: • Developing applications using Spring MVC, Spring Boot, and Hibernate frameworks • Expertise in core AWS services such as S3, EC2, ELB, EBS, Route53, VPC, and auto scaling • Experience in using Web Services like SOAP, REST, and RESTful • Proficiency in using open source tools such as Log4J and JUnit test Framework • Strong experience in using Oracle, MySQL, and SQL server databases and writing complex SQL queries • Implementing functionality using Deluge scripting • Responsible for data migration from client databases to different Zoho Modules • Strong programming skills, especially in Object Oriented Programming and development knowledge. • In addition to my experience with Zoho CRM, I am also proficient in other Zoho products such as Zoho Books, Zoho Projects, Zoho Creator, and Zoho Inventory.

𝙁𝙞𝙣𝙩𝙚𝙘𝙝 𝙬𝙚𝙗 𝙖𝙥𝙥𝙡𝙞𝙘𝙖𝙩𝙞𝙤𝙣𝙨 𝙖𝙧𝙚 𝙢𝙮 𝙨𝙥𝙚𝙘𝙞𝙖𝙡𝙩𝙮—𝙄 𝙗𝙪𝙞𝙡𝙙 𝙘𝙤𝙢𝙥𝙡𝙚𝙭, 𝙨𝙘𝙖𝙡𝙖𝙗𝙡𝙚 𝙖𝙥𝙥𝙨 𝙪𝙨𝙞𝙣𝙜 𝙅𝙖𝙫𝙖𝙎𝙘𝙧𝙞𝙥𝙩, 𝙏𝙮𝙥𝙚𝙎𝙘𝙧𝙞𝙥𝙩, 𝙖𝙣𝙙 𝙉𝙤𝙙𝙚.𝙟𝙨. 𝙄 𝙬𝙤𝙧𝙠 𝙬𝙞𝙩𝙝 𝙛𝙖𝙨𝙩-𝙜𝙧𝙤𝙬𝙞𝙣𝙜 𝙛𝙞𝙣𝙩𝙚𝙘𝙝 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙩𝙝𝙖𝙩 𝙣𝙚𝙚𝙙 𝙡𝙤𝙣𝙜-𝙩𝙚𝙧𝙢 𝙨𝙩𝙖𝙛𝙛 𝙖𝙪𝙜𝙢𝙚𝙣𝙩𝙖𝙩𝙞𝙤𝙣. 𝙒𝙝𝙖𝙩 𝙄'𝙢 𝙗𝙚𝙨𝙩 𝙖𝙩: 1️⃣ Custom FinTech Web Apps: I specialize in building long-cycle web applications for product-based companies. Whether you're building a fintech platform from scratch or need ongoing development, I ensure high-quality, scalable results using JavaScript and TypeScript. 2️⃣ API Development & Integration: From building custom RESTful APIs to integrating complex third-party services, I make sure your web app easily connects with the necessary tools using Node.js, Python, and SQL. 3️⃣ Database Architecture & App Development: Creating efficient and secure database architectures is key for any fintech product. I design systems that are both scalable and secure, optimizing them for high performance in fintech environments. 4️⃣ Mockup & UI/UX Design: Before jumping into development, I make sure your project is visualized through detailed mockups, helping to craft the user experience while focusing on functionality. 𝙏𝙤𝙥 𝙎𝙠𝙞𝙡𝙡𝙨: ✔️ FinTech Web App Development ✔️ JavaScript & TypeScript ✔️ API Development & API Integration ✔️ Node.js & Python ✔️ Database Architecture & SQL 𝘾𝙤𝙣𝙩𝙖𝙘𝙩 𝙢𝙚 𝙩𝙤 𝙙𝙞𝙨𝙘𝙪𝙨𝙨 𝙝𝙤𝙬 𝙄 𝙘𝙖𝙣 𝙝𝙚𝙡𝙥 𝙜𝙧𝙤𝙬 𝙮𝙤𝙪𝙧 𝙛𝙞𝙣𝙩𝙚𝙘𝙝 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨!

📱 Top Rated Plus · 100% Job Success Score I'm a software engineer with a Computer Engineering degree. I build things: mobile apps, web apps, AI-powered products, MVPs from scratch. Whatever the platform, I take full ownership from idea to production. Here's what that looks like in practice: I built Swift Alert solo from zero. It scaled to 1.8M+ downloads, 850K daily active users at peak, hit top 10 on the US App Store, and holds a 4.9-star rating across 90,000+ reviews on iOS and Android. Every architecture, product, and infrastructure decision mine. Beyond that, I've shipped across a lot of verticals. Healthcare (Pooficient, Endor Health), entertainment (Aside Actor, an AI-powered studio for actors with TTS, STT, and script analysis), business tools (GR Leads), food delivery (Tokobay), web platforms, dashboards, and more. Most of my clients are early-stage startups and I genuinely enjoy that pace, moving fast, making real decisions, and building things that actually work. On the AI side: I build with it, not just around it. I integrate LLMs, TTS/STT, OpenAI, ElevenLabs, and AI-powered features into production products. I also use Cursor and Claude Code daily as part of how I develop, which means I move faster without cutting corners. If you need someone who can take a product from napkin sketch to live and actually give a damn about what they're building let's talk. Tech Stack: React Native · Expo · TypeScript · JavaScript · AI/LLM · Swift · SwiftUI · React · Next · Firebase · Supabase · PostgreSQL · Python · Django · Ruby on Rails · OpenAI · Gemini · ElevenLabs · Figma

I help founders and businesses launch new digital products, take over existing codebases, and rescue applications that have become difficult to maintain. ✱ 15 years of software engineering experience, from startups to large technology companies ✱ 8,800+ tracked hours on Upwork with consistent 5-star feedback ✱ Tens of designed and delivered mobile products from initial architecture to store release and long-term maintenance I can help you with: 🔹 MVP and production app development from scratch 🔹 Flutter apps for Android, iOS, web, and desktop 🔹 Native Android development with Kotlin and Jetpack Compose 🔹 Full-cycle delivery: planning, design support, architecture, development, testing, and release 🔹 Mobile apps for existing websites, SaaS platforms, and APIs 🔹 Existing project takeover, modernization, and long-term maintenance 🔹 Crash fixes, broken builds, performance issues, and release blockers 🔹 Firebase, APIs, payments, subscriptions, push notifications, analytics, and AI features 🔹 Google Play, App Store, web, and desktop deployment You will receive clear milestones, regular test builds, daily progress reports, and early communication about risks or scope changes.

Hi, I’m Jorge, a senior mobile app developer with over 10 years of experience building scalable, user-friendly apps for some of the world’s most recognized brands, including GrubHub, Subway, Wendy’s, and even NASA. Whether you need a custom app or a quick-to-market solution, I specialize in delivering cross-platform apps using Flutter, FlutterFlow, Kotlin, Swift, and native Android/iOS technologies. What I Bring to Your Project 1️⃣ Enterprise-Grade Expertise I’ve delivered apps for Fortune 500 companies that handle millions of users daily, with features like API integrations, real-time tracking, and payment gateways. My past work includes restaurant apps, healthcare solutions, and educational tools. 2️⃣ Cutting-Edge Features From geolocation and AI-powered functionality to secure payment systems and ADA compliance, I build apps that are intuitive, secure, and performant. I’ve developed: Real-time tracking systems (Washly - on-demand car wash app). QR code and payment verification (GrubHub Enterprise SDK). AI-powered micro-learning experiences (MindGarden - gamified learning app). 3️⃣ Seamless Integration and Scalability I ensure apps are built to scale, working seamlessly with Firebase, AWS, MongoDB, and more, so your app grows with your business. What You’ll Get Working With Me 🚀 End-to-End App Development: I handle everything from concept to post-launch support. You only need to provide feedback and focus on your business goals. 🚀 Clear Communication: I explain technical concepts in simple terms and provide regular updates. 🚀 Proven Reliability: I deliver on time and on budget, with a track record of 100+ completed apps and repeat clients. How I Set You Up for Success I work collaboratively to ensure your app aligns with your vision and achieves your goals. I streamline development so you receive a high-quality app quickly and stress-free. I prioritize security and performance, building apps that users love and trust. Let’s Build Something Great I’m here to help you create an app that stands out, connects with your audience, and drives results. Invite me to your project or send a message to discuss how we can work together.

I’m a senior Unity and C# developer who builds games, prototypes, tools, and real-time 3D applications. If you're working with me, you're getting accountability, creativity and technical excellence. I use a cutting edge modern Unity workflow combining years of experience, the Unity MCP plugin and flagship models from Anthropic, Cursor and OpenAI. You're paying for a seasoned veteran using the most effective tools who can look at any line in your code and explain to you in plain english what it does and why it does it. What I can help with: Unity Apps / C# game development Gameplay systems, UI, tools, prototypes, production features, debugging, polish, optimization, and platform-specific fixes for PC, Android/iOS, WebGL and VR. AI-enabled games and interactive systems NPC dialogue, local model integration, procedural quests, AI-assisted content generation, narrative engines, runtime data pipelines, and practical AI features that fit inside an actual Unity project. Backend and service integration Databases, APIs, player/user data, analytics, multiplayer services, auth flows, admin tools, live content, and external hardware or device inputs. Technical rescue work I’m comfortable entering messy projects, finding the real problem, stabilizing the build, cleaning up broken systems, and giving the client a clear path forward. Recent work in 2025-2026 has included Mobile and PC strategy, action and MMORPGS, custom Unity tools, AI-powered narrative/gameplay systems, WebGL and VR projects, Android/iOS app updates, ad/IAP integrations, hardware-input arcade experiences, realtime Windows companion apps, and large-scale experimental game prototypes. If you’re serious about building something awesome, I’m happy to work hourly or by milestone depending on the shape of the project. Please get in touch!