Hire the Best iOS Developers
in Croatia

Need a full-stack product built fast without sacrificing scalability? With 15 years as a Full-Stack Developer and AI Engineer, I’ve delivered 16k+ hours and $1M+ earnings across web and mobile products. For startups and SaaS teams, I build React, Next.js, Node.js, and Flutter solutions that launch cleanly and scale confidently. 🎯 HOW I CAN HELP YOU FULL-STACK WEB APPLICATION DEVELOPMENT Launch scalable web products that convert users faster and support long-term growth. I build React, Next.js, Node.js, and TypeScript applications with architecture choices that have supported $1M+ in Upwork earnings and 100% Job Success. AI AGENT AND OPENAI INTEGRATION Add intelligent features that automate work, reduce manual effort, and create new product value. I integrate OpenAI APIs and AI workflows into existing platforms to accelerate delivery and turn ideas into usable AI-powered products. MOBILE APP DEVELOPMENT Ship iOS and Android apps that give users a smooth experience across devices and help you reach more customers. I develop with Flutter, React Native, Swift, and Kotlin, with proven experience delivering apps published to both Apple and Google app stores. SAAS PLATFORM DEVELOPMENT Turn complex ideas into secure, scalable SaaS products that are ready to monetize. I have built multi-tenant platforms with authentication, billing, APIs, and dashboards for startups and enterprise teams in as little as MVP timelines. API AND BACKEND ENGINEERING Increase system stability, speed up integrations, and support growth with robust backend foundations. I design Node.js, NestJS, Express, PostgreSQL, and cloud-based systems that handle real-world product demands across web, mobile, and AI features. 🏆 RESULTS "Thanks to Cinnamon's efforts, the app's server response times were excellent, and the end client was thrilled with the results. The team was responsive and pragmatic in responding to needs, communicating via virtual meetings, emails, and messages. Their talented engineering team was impressive." – Gregory W., Founder, Mojave Interactive LLC "Thanks to Cinnamon's work, the client has seen a 25% higher completion rate and 40% less completion time. The pricing calculators have reduced the error rates by 50%. The team delivers timely items, responds quickly to messages, and addresses requests effectively. Their support is unique." – Premnath M., Head of Software Development Digital Bank, BAWAG AG "The Android app has thousands of downloads and impressive online ratings, which reflects Cinnamon Agency's technical expertise. The team is willing to work long hours to meet deadlines. They excel at project management and have a robust reporting system in place." – Garin Toren., Founder, Ping 🎖 JavaScript Algorithms and Data Structures Certification 🎖 React Developer Certification 🎖 AI Engineering and LLM Integration Certification See full case studies in my portfolio below. 🤝 𝗚𝗘𝗧 𝗜𝗡 𝗧𝗢𝗨𝗖𝗛 Have an app idea or product to launch? Message me on Upwork today for a free consultation and a clear plan to move forward. I typically respond within 4 hours and can offer quick turnaround for urgent projects. 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 I build in React, Next.js, and TypeScript to ship fast, maintainable web apps, then use Node.js, PostgreSQL, and AWS to keep the backend reliable and scalable. For AI features, I integrate OpenAI APIs and Cursor into workflows that automate tasks and add real product value. I also use Flutter when a project needs a polished cross-platform mobile app. I build full-stack web applications with React and Next.js, integrate Node.js APIs, and deliver mobile app development with Flutter and AI development that scales.

I do my work with passion. So, I am experienced professional iOS developer with for over eight years as a freelancer. There are 20 years of software development behind me in general. On Upwork, I worked more than 2000 working hours billed in 75 projects best rated. Also, there are about 70+ projects on Freelancer.com in my recent freelancer history with overall score 5.0 and very high Repeat Hire Rate. Some of my past work includes: - Audio/Video editing applications - Working time tracking system - several board games My work can be described as: "Anything less than perfect is not an option." Here are some of apps that I did develop: OfficeTime (time tracking tool) Pulp Movie Studio (Audio/Video editing/sharing app) Vintage Looks  (Audio/Video editing/sharing app) 

Are you tired of low-quality code, over-billed hours, missed deadlines, and extremely buggy features? Want to work with an experienced engineer who is as passionate about your project as you are and can seamlessly translate your ideas into an app? Let’s chat! Who am I? My name is Dinko, an expert mobile & TV solutions engineer. My goal is to create the app you are dreaming about with the least amount of friction possible. I cannot help everyone, but you may be a right fit if you think: 🔸 ”I have a brilliant idea, but I don’t know how to code” 🔸 “My product is already established, I need someone with deep technical knowledge to take it to the next level” 🔸 “The app is full of bugs, I want them gone” 🔸 “This seems to be a job for an experienced software architect so I can scale later” 🔸 “I want someone who can communicate effectively, work alone and make this happen” Working with me will: ✅ Ease your mind when it comes to code quality ✅ UI will be pixel-perfect and seamless ✅ The app will have minimal bugs ✅ Communication will be clear and frequent ✅ Robustness and scalability will be achieved by using the best architecture approaches and an appropriate amount of automatic tests ✅ Speed of development will be at peak level by leveraging the latest mature technologies and tools I’m not everyone’s cup of tea, so here are some signs we might not be a great fit: ✖ You have a tight budget and are looking for a cheap developer ✖ You like to push people to work faster and then complain about the quality ✖ You like to have 100% control over every detail of the project I’ve previously been engaged with projects in the various domains like: 📢 Marketing 🛒 E-commerce 🏋🏽‍♀️ Fitness and health 👥 Social Media 👔 Human Resources 🌐 Internet of Things and more.. Services I provide: ➡️ Native app development for Android using Kotlin and iOS using Swift ➡️ Hybrid app development using Flutter and Dart ➡️ Backend development using Firebase, Supabase and Dart Ready to know what it feels like to work with an engineer who truly cares about your success? ___________________________________________________ Related keywords: Android developer, iOS developer, Web developer, Mobile developer, Kotlin, Xcode, Swift, SwiftUI, Jetpack Compose, GraphQL, REST API, Android SDK, Android Studio, Git, Flutter, Flutter Developer, Riverpod, GPS, Bluetooth, Native, Hybrid, Hybrid Mobile Development, Back end development, AWS, GCP, Firebase, Supabase, Full-stack development, Smart TV app development, Android TV app development, Apple TV app development, SaaS expert, IoT, B2B, B2C, Full-cycle product development

Hello, I've been working as a senior iOS developer and a team leader for over 12 years, I'm currently a full time freelancer and a cofounder of an agency called Applab.hr specialized in native iOS development. Services: • iPhone, iPad, Apple TV and Apple Watch development • code review and client consultations Development: • Xcode (Swift, Objective‐C) Skills: • git, SVN, CVS • REST JSON, SOAP, XML RPC • Region monitoring, location services • Background processes, data tasks • CoreBluetooth • Websockets • Power consumption optimisation • OpenCV video processing

I am experienced developer with more than 10 years of experience of development for Windows platform. For the last year I have been working as a iOS developer in a small team of great developers and ux designers. My working hours are flexible and love to work as a team member. I look forward to hearing from you!

iOS developer since 2016. Worked in teams of different sizes and on apps used by millions of people. Built niche apps for specific domains and use cases. Highlights: • 10+ apps released on the App Store • 5+ years of freelance experience • holder of a Master's Degree in Computer Science I enjoy working on projects that help solve real-world problems, big or small. I value open communication, clear goals, and efficiency.