Hire the Best App Development Freelancers
in Australia

Most clients come to me after a bad experience with someone else. A developer who went silent mid-project. An agency that delivered something that looked nothing like the brief. A freelancer who could write code but couldn't think about the product. I've heard all of it, and it's part of why I built my practice the way I did. Over 7 years, I've worked with startups trying to launch their first product, mid-size companies scaling fast, and enterprise clients who needed things done right the first time. The budgets were different. The industries were different. But every single client needed the same thing: someone who actually gives a damn about what they're building. That's what I bring. 📱 Mobile — Flutter for iOS & Android I've shipped 15+ Flutter apps across healthcare, fintech, eCommerce, SaaS, on-demand services, and social platforms. From concept to App Store approval, I manage the whole thing, clean architecture, smooth animations, Firebase, in-app purchases, push notifications, secure auth, and full lifecycle management. Not demos. Not prototypes. Real apps with real users. ✔ Cross-platform Flutter apps for iOS and Android ✔ AI-powered mobile apps with OpenAI and LLM integration ✔ Real-time apps — chat, live tracking, collaborative tools ✔ eCommerce and marketplace apps with payment integration ✔ On-demand, booking, and service apps ✔ SaaS mobile apps with subscription and billing flows ✔ Startup MVPs built to scale from day one 🤖 AI-Powered Mobile Apps This is where most Flutter developers stop. I don't. I've integrated AI into real client mobile products, not experiments. That includes conversational AI chatbots built into mobile UX, smart recommendation engines, OpenAI and custom LLM API integration, image recognition features, and AI-powered automation inside production apps. If you're thinking about adding AI to your mobile product and aren't sure where to start that's exactly the kind of conversation I'm good at. ⚙️ Tech Stack Mobile: Flutter · Dart · iOS · Android · Firebase · Supabase · App Store · Play Store Backend for mobile: Node.js · Python (FastAPI) · REST APIs · GraphQL Databases: Firebase Firestore · PostgreSQL · SQLite · Supabase Cloud: AWS · Google Cloud · Docker · CI/CD Payments: Stripe · PayPal · Apple Pay · Google Pay · In-App Purchases AI: OpenAI API · LangChain · LLM integration 🏆 The Honest Version of My Track Record ✅ 7+ years shipping mobile products not just coding them ✅ 15+ Flutter apps live on App Store and Play Store ✅ AI features integrated into real client apps, not just experiments ✅ Fixed broken codebases, scaled slow apps, launched MVPs from zero ✅ Clients from USA, UAE, Australia, Europe and beyond ✅ I think like a business owner. Not just a developer. 📩 Let's Talk Send me a message about what you're building. I don't do a sales pitch. I ask questions, tell you what I think, and we figure out together if I'm the right fit. Sometimes I'll tell you something isn't worth building the way you're thinking. That kind of honesty has kept my clients coming back.

Hi, I'm a passionate mobile app developer with 15 years of experience creating seamless, user-friendly, and performant mobile applications for iOS and Android. Whether you're a startup looking to build an MVP or an established company needing to optimize an existing app, I bring a wealth of expertise in delivering top-notch solutions tailored to your business needs. My expertise includes: - iOS Development (Swift, SwiftUI, UIKit) - Android Development (Kotlin, Jetpack Compose) - Cross-platform Development (React Native) - App Store Optimization (ASO) and Deployment - UI/UX Design Integration with Figma and Adobe XD - In-app Purchases, Payments & Subscriptions - API Integration (RESTful APIs, GraphQL) - Third-Party SDKs and Libraries Integration - Firebase, Push Notifications, Analytics Why work with me? - Client-Centric Approach: I believe in clear communication, frequent updates, and delivering on time. - Quality Code: I adhere to best practices and write clean, maintainable, and scalable code. - Full-Cycle Development: From ideation to deployment and post-launch support, I cover all stages of app development. - Problem Solver: I enjoy tackling challenges, whether it’s debugging complex issues or finding innovative solutions to meet your unique requirements. Let’s bring your app idea to life. I’m excited to collaborate on your project!

G'day! I'm Brett, a full-stack developer with 20+ years of hands-on experience in website design, development, mobile & desktop app development, hosting, AI-driven automation, and advanced Excel-based data and financial solutions. I went through all levels of verification by Freelancer staff providing you with reassurance that I am one of the top developers on Freelancer. I build reliable, scalable websites and applications, and I help businesses use AI in a practical way — automating repetitive work, improving customer experience, and making systems smarter without unnecessary complexity. My core tech stack includes PHP, JavaScript, Python, C/C#, and Java, along with modern frameworks, AI, APIs, and industry-standard tools. What I Do 1. Website Design - Figma, PSD, Adobe XD - Responsive Layouts with CSS, Bootstrap, Tailwind CSS 2. WordPress - Custom themes & plugins - ACF, Gutenberg, Elementor, Divi, Beaver Builder, Oxygen, WPBakery - Advanced custom forms (Gravity Forms, WPForms, Contact Form 7) 3. Website & Application Development 3.1 Next.js & Modern Web Apps - Next.js websites and applications - Server-side rendering (SSR) & API integrations - Secure, scalable architecture 3.2 Front-End - HTML, CSS, JavaScript, jQuery - React.js, Angular, Vue.js, MUI - Bootstrap, Tailwind CSS 3.3 Back-End - Node.js (Express) - PHP (Laravel, Symfony, CodeIgniter, Yii, Zend) - Python (Django, Flask, FastAPI) - C# (.NET, .NET Core) 3.4 Full-Stack - MERN & MEAN stacks - Secure APIs, authentication & integrations 4. AI & Automation - AI chatbots and assistants for websites & internal tools - OpenAI / LLM integrations (chat, content, data processing) - Smart search, filtering & AI-powered features 5. E-commerce - WooCommerce, Shopify, Magento, Prestashop, OpenCart - Custom features, integrations & performance optimisation 6. Mobile App Development (Flutter & React Native) - Cross-platform mobile app development for iOS and Android - API integration (REST, GraphQL, Firebase, etc.) - Push notifications, authentication, payments & third-party services 7. Desktop Application Development (Electron) - Cross-platform desktop apps for Windows, macOS, and Linux using Electron - Building modern, responsive desktop UI using HTML, CSS, JavaScript, React, and Node.js - API integrations for cloud-connected desktop tools 8. Excel & Finance Automation - Advanced Excel solutions (formulas, pivot tables, dashboards) - Financial modelling, forecasting & reporting tools - Data cleaning, transformation & analysis - Automation using Excel, Google Sheets & scripts (VBA / Python) - Integration with APIs, CRMs, and business systems for real-time reporting 9. Hosting & Deployment - Hosting setup, optimisation & security - Ongoing maintenance and support I'm online pretty much 24x7 so you're never going to wait long for an answer. I'm easy to chat to and extremely keen to achieve a 5/5 result for both sides, get in touch.

I help companies build Unity applications across architecture, engineering and construction (AEC), games, mobile apps, simulations and real-time 3D. I have worked in software engineering since 2005 and with Unity and C# since 2012. As a Certified Unity Expert Programmer, I take projects from planning through architecture, development, optimisation and deployment across WebGL, iOS, Android and desktop. My work covers systems, including Unity development, gameplay, 3D pipelines, native mobile plugins, backend APIs, multiplayer, cloud infrastructure and CI/CD. AEC, CONSTRUCTION AND REAL-TIME 3D I build Unity software for architecture, engineering and construction, including: • Interactive building, home and product configurators • Real-time architectural visualisation • Parametric modelling automation and building design automation • SketchUp extensions using Ruby and the SketchUp Ruby API • Automated geometry extraction and GLTF export • Runtime GLTF and GLB model loading in Unity • GIS and geospatial 3D visualisation I develop custom SketchUp extensions that automate modelling and export workflows. These tools can inspect model structure, extract geometry and metadata, apply project rules, generate configurable variants and export Unity-ready GLTF assets. Within Unity, I build systems that load, assemble and control these models at runtime, including materials, colours, dimensions, component options, pricing, camera controls, saved configurations and backend integration. GAMES, APPS AND SIMULATIONS My Unity experience includes commercial mobile games, PC and console games, location-based apps, educational software, training simulations, multiplayer systems and virtual environments. I can assist with: • Unity gameplay and application development • Mobile, PC, console and WebGL development • Educational and training simulations • Location-based and augmented reality apps • Multiplayer and server-authoritative systems • Unity UI, tools and editor extensions • Performance, memory and app-size optimisation • Native iOS and Android plugins • Unity upgrades, technical audits and debugging GIS, FULL-STACK DEVELOPMENT AND DEVOPS I have delivered mapping applications using Unity with Mapbox, WRLD and Google Maps, plus Angular with Leaflet, HERE Maps and Esri ArcGIS. Use cases include architectural visualisation, indoor navigation, asset tracking, drone simulation and GeoJSON processing. For backend and web development, I work with Node.js, Express, PHP, Firebase, MongoDB, AWS, Azure and Google Cloud. I have built APIs, authentication, admin tools, content pipelines, analytics integrations and real-time services. I build automated pipelines using GitHub Actions, GitLab CI/CD and Fastlane, covering Unity builds, mobile signing and distribution, WebGL deployment, release management and build troubleshooting. SELECTED PROJECTS • Woodoku Blast, Tripledot Studios: Technical Lead for two years on a commercial mobile puzzle game, covering solution architecture, gameplay systems, native iOS and Android plugins, performance, technical direction and CI/CD. • WeStretch: A commercial iOS and Android fitness app built with Unity. I worked across solution architecture, full-stack development, Firebase and Node.js services, native integrations, performance and memory optimisation, offline support, app-size reduction, Unity upgrades and CI/CD. I also introduced software standards, supported other developers and helped guide the long-term technical direction. • Broken Roads: A narrative-driven RPG for PC and consoles developed by Drop Bear Bytes. As Technical Lead from 2019 to 2021, I was responsible for software architecture and development across Unity, C#, Articy Draft, Angular, Firebase, Node.js and internal automation tools. My work covered gameplay, UI, persistence, AI, dialogue, quests, characters, editor tooling, content pipelines and the team's custom CMS. I also provided technical support and training, established development standards and prepared handover documentation for Team17 and The Knights of Unity. HOW I WORK I am comfortable leading a complete technical workstream or joining an existing team to solve a specific problem. I can contribute as a senior Unity engineer, technical lead, solution architect, full-stack developer or consultant. Clients value my ability to understand the commercial goal, identify technical risks early, and explain the options clearly. I care about maintainable code, sensible architecture, realistic estimates, dependable delivery, and clear communication. CREDENTIALS • Certified Unity Expert Programmer • More than 20 years of software engineering experience • Unity and C# development since 2012 • Certified Scrum Master and Certified DevOps Engineer If you need an experienced Unity developer for an AEC platform, game, app or simulation, send me a message.

🌟 Elevate Your Brand with a Full-Spectrum Digital Partner: Design, Dev & Motion 🚀 Your "One-Stop" Expert for World-Class UI/UX, E-commerce, and Cinematic Video Production. Hello! I'm Andres, a Top 1% Upwork Freelancer who bridges the gap between static design, functional development, and dynamic motion. In today's digital landscape, a brand isn't just a logo or a website, it's a moving, breathing ecosystem I partner with ambitious businesses to build "Rolls Royce" standard digital experiences. Whether you need a high-converting Shopify store, a complex SaaS interface, or a premium motion graphics video to launch your product, I deliver excellence across the board. 🔥 Why Hire Me? * The "Total Package" Advantage: Most clients juggle a designer, a developer, and a video editor. I integrate all three. I ensure your video ads match your landing page, and your landing page works perfectly with your checkout code. * Immersive Storytelling: I don't just display information; I make it move. From UI micro-interactions to full promotional videos, I use motion to capture attention and increase time-on-site. * Technical Versatility: I don't force you into one tool. Whether it's Shopify, Webflow, WordPress, or Framer, I implement the right solution for your specific business goals. 🌐 My Expertise: 🖥️ Premium UI/UX & Digital Product Design: * High-Impact Websites: Designing immersive digital homes for brands that establish immediate authority. * SaaS & App Interfaces: Creating intuitive, scalable dashboards and mobile app flows (iOS/Android) that reduce user churn. * Interactive Design: Utilizing high-fidelity prototyping to simulate the final "feel" of the product before a single line of code is written. 🛍️ E-commerce & CMS Development: * Shopify Flagships: Building custom, high-speed stores optimized for conversions and AOV. * Platform Agnostic Build: * Webflow & Framer: For creative, interaction-heavy sites. * WordPress: For robust, scalable enterprise content management. * Technical Optimization: Ensuring speed, mobile responsiveness, and clean code architecture. 🎬 Video Animation & Motion Production: * Motion Graphics: Bringing static assets to life for social media, ads, and hero headers. * Explainer Videos: Simplifying complex SaaS or product concepts into engaging, easy-to-understand narratives. * Video Editing & Post-Production: Polishing footage with professional grading, transitions, and sound design to create broadcast-quality content. 💡 What Sets Me Apart? ✓ Unified Brand Vision: Because I handle the Design, the Build, and the Motion, your brand voice remains 100% consistent across every medium. ✓ Business-First Creativity: I don't just make things look "cool." Every pixel and every frame is designed to drive a specific business result, whether that's a click, a sale, or a lead. ✓ The "No-Handoff" Efficiency: You don't need to explain your vision three times to three different freelancers. We discuss it once, and I execute it everywhere. 🔍 Ready to Transform Your Digital Presence? Let’s determine if we’re a perfect fit. Contact me for a personalized consultation. 🚀 Join the Andres Experience: Don’t settle for a fragmented digital identity. Get the power of a Designer, Developer, and Producer in one. Reach out today to kickstart your transformation!

🍎 iOS Developer for Startups | Swift, UIKit & SwiftUI | 5⭐ Upwork Freelancer I'm a Computer Science student and iOS app developer who helps startups turn app ideas into clean, functional, and user friendly iOS products. I understand that startups often need someone who can move quickly, communicate clearly, adapt to changing requirements, and care about the product as much as the code. My goal is to make the development process easier for you by being reliable, responsive, and focused on helping your app succeed. I do study full time, so I try to be as available as I can, but may need to take time off for study. Other than that, I'm just a message away. I can help you with: ✅ iOS app development with Swift, UIKit, and SwiftUI ✅ MVP development for early stage startups ✅ API and backend integrations ✅ Firebase Cloud Storage and Firebase Realtime Database ✅ REST API integration ✅ Clean, scalable, and maintainable code ✅ Bug fixing, performance improvements, and feature updates I’m easy to communicate with, open to feedback, and committed to delivering work that fits your startup’s goals, timeline, and budget. If you would love to work together to help bring your app idea to life, feel free to message me. 📩 Message me now for a free chat about how I can help you