Hire the Best iOS Developers
in the United Kingdom

I am an experienced iOS engineer with over 16 years in developing high-quality applications across various sectors. My expertise spans Swift, SwiftUI, UIKit, and advanced frameworks like ARKit and Core ML, allowing me to deliver innovative solutions like augmented reality applications and on-device machine learning. I excel at building robust software architecture and integrating complex APIs, ensuring a seamless user experience. My recent role as a Founding iOS Engineer involved driving the development of a new app from concept to launch, demonstrating my ability to lead projects and deliver results. I am looking to collaborate with clients who value innovation and quality in their mobile applications. Let's discuss how I can help bring your vision to life and elevate your project.

I'm a highly skilled and experienced iOS developer (over 10 years professional experience in iOS development), used to working with established projects and startups alike. I have a thorough knowledge of all aspects of iOS development, all the way from app design, through backend integration, to releasing on the app store, so whatever your project is I can be the one to bring it to life. I write clean, modular, professional code that can be built upon and is future proof, and always maintain good version control using Github / Gitlab / Bitbucket or whatever platform the project requires. I have released over 20 full applications over the years with clients from the UK, the US, and Europe, and I have a set of my own successful (and very highly rated) personal applications live on the app store, which you can find a link to here on my profile. Further to my iOS development I also work in web and server side infrastructure, which is almost always necessary when working with mobile applications . This means I also have experience building and deploying backend databases (primarily through node.js servers that connect to, but not limited to MySQL/postgreSQL/MongoDB) that can serve the iOS projects I work on, through API's and database integration. As a professional developer I enjoy building good lasting relationships with clients, and I am agile and can integrate myself into existing development teams where projects require this.

Full stack mobile app developer with 15+ years of experience in Mobile App Development, specializing in Flutter, React Native, React, IOS, Swift, Android, Python, and Java. I have successfully delivered 120+ mobile applications in different roles as flutter app developer, flutter full stack developer, flutter flow, ai mobile app developer, mobile app design, mobile ui ux designer, ios developer, android developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions. 🚀 Flutter Mobile App Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer for Mobile app development project. Expert in Flutter mobile app development, delivering 30+ high-performance apps with pixel-perfect UI and smooth animations. Skilled in clean architecture and comprehensive testing for robust solutions. Experienced Mobile App Developer. 🔹 Applied game mechanics for engaging experiences in mobile development where I was a Mobile Game Developer. 🔹 Integrated real-time features, secure authentication, and cloud functions as Flutter Firebase Developer. 🔹 Built seamless API integrations and data synchronization in mobile development in Flutter mobile app development as a Flutter Laravel Specialist. 🚀 iOS app developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development: Developed and optimized 40+ iOS apps using Swift. Implemented complex features as iOS app developer, maintaining clean architecture and best practices. Leveraged extensive experience as iOS developer Swift to create intuitive user experiences and solve challenging technical problems. Collaborated with cross-functional teams as Swift iOS developer, utilizing Kotlin Swift expertise to deliver high-quality applications on time and exceed client expectations on iOS Swift smartphone platforms. 🚀 Android Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development: Built 30+ Android apps with adaptive UI, material design, and battery-friendly performance. Expert in Android Kotlin developer, leveraging Kotlin Swift and Kotlin Multiplatform for cross-platform solutions. Optimized security as Android reverse engineer and streamlined releases as Android app publisher, enhancing engagement and update efficiency. 🚀React Native Developer | Mobile UI/UX Designer | Mobile Game Developer | Mobile Web Developer in mobile app development: Built 20+ cross-platform apps with responsive UI and seamless sync. Expert in React Native mobile, React Native Expo, and React Native Firebase for real-time features. Optimized communication with React Native WebRTC. Crafted interactive experiences as React JS and Front End React specialist. Developed hybrid solutions as Java React expert, maximizing code reuse. 📱 Performance & Scalability: Built apps supporting 1M+ users, integrating real-time updates, gamification, and video streaming. 💰 Business Impact: Helped startups and enterprises generate $10M+ in revenue through well-optimized and engaging mobile applications. iOS App Development Case Study 📱 Developed a high-performance iOS app using iOS Swift that achieved 5 star rating and featured status in the App Store. Implemented Flutter iOS compatibility for future cross-platform expansion while maintaining native performance and security. Supported iOS app marketing efforts with analytics implementation and App Store optimization, resulting in 35% higher user retention than industry average. I am currently not accepting WordPress projects as I'm focusing exclusively on mobile app development. Professional Achievements 🚀 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 🚀 4154 mobile app development hours on Upwork and still counting 🚀 100% Job Success in mobile app development (Client Satisfaction Ratio) 🚀 54+ mobile app development jobs completed successfully ✅ 98% of Clients Recommended working with me as with AI Mobile App Developer ✅ 80% Long-term Repeat Clients ✅ 15+ Years Of Experience in mobile app development, 6 years experience in Flutter mobile app development, 7 years experience in Swift and Kotlin, 4 years experience in React Native. ✅ High-Quality Work ✅ Cost-Effective AI Mobile App Developer ✅ Fluent English Verified ✅ 93% on-time delivery rate across all mobile app development milestones Got an app idea that you think is ready to make a splash? Let's dive in and explore it together in a free intro call

I am an expert-vetted AI Engineer and automation specialist with over 10 years of experience designing and delivering intelligent, production-ready AI solutions for startups, enterprises, and public-listed companies worldwide. My core focus is on AI automation, Agentic AI systems, Retrieval-Augmented Generation (RAG), and Knowledge Graph–driven architectures that help businesses scale operations, unlock insights from data, and automate complex decision-making processes. I combine deep AI system design expertise with a strong full-stack engineering background, allowing me to take AI solutions from concept → architecture → deployment → scale with reliability and security. What I Specialize In ✅ AI & Intelligent Systems AI Automation & Workflow Orchestration Agentic AI (Multi-Agent Systems, Autonomous AI Agents) Retrieval-Augmented Generation (RAG) LLM Integration (OpenAI, Anthropic, Open-Source LLMs) Knowledge Graph Design & Implementation Vector Databases & Semantic Search AI Chatbots & AI Assistants (Enterprise-grade) AI-Powered Decision Support Systems ✅ Backend & AI Infrastructure API-first AI architectures Cloud-native AI deployments (AWS, Azure, GCP) Data pipelines for AI & ML workflows Scalable microservices for AI applications Secure AI systems & enterprise integrations ✅ Full-Stack Engineering (Supporting AI Products) Modern Web Applications (React, MERN/MEAN) Backend systems for AI-driven platforms Real-time dashboards & AI interfaces Mobile apps integrated with AI services Past Achievements Designed and deployed AI-driven automation systems for startups and enterprise clients. Successfully set up outsourcing and AI-enabled back-office operations for Australian public-listed companies. Built an award-winning mobile application, now enhanced with intelligent content discovery features. Helped teams transition from traditional software to AI-first product architectures. Project Management & Delivery End-to-end AI solution ownership (Discovery → MVP → Production) Agile / Scrum project leadership Cross-functional collaboration with data, product, and business teams Clear documentation, testing, and maintainability focus Why Work With Me AI solutions that solve real business problems, not just demos Strong balance of AI expertise + engineering discipline Proven experience with scalable, enterprise-grade systems Clear communication and long-term partnership mindset 👉 If you’re looking to build AI agents, automate workflows, implement RAG pipelines, or leverage Knowledge Graphs to power intelligent applications — I’m the right partner for you. Tags AI Automation | Agentic AI | AI Agents | Retrieval-Augmented Generation (RAG) | Knowledge Graphs | LLM Integration | Vector Databases | Semantic Search | AI Chatbots | AI Assistants | Machine Learning Systems | AI Architecture | Full-Stack AI Development | Cloud AI (AWS, Azure, GCP) | API Integration | Business Process Automation | React | MERN Stack | MEAN Stack | Mobile App Development | Scalable AI Systems | Enterprise AI Solutions

I specialise in building, fixing and reviewing mobile apps for connected hardware products (BLE Bluetooth, Wi-Fi, IoT) and React Native applications where reliability and real-time behaviour are critical. I’m often brought into projects that are close to release or experiencing issues, to assess build quality, resolve problems, and ensure successful App Store / Play Store submission. This includes stepping into existing React Native apps to: * fix bugs and stability issues * upgrade React Native versions * resolve build and deployment problems * improve performance and reliability I am an Upwork Top Rated Plus developer based in the UK, with extensive experience across iOS (Swift, SwiftUI, Objective-C) and React Native. My core areas of expertise include: * Bluetooth Low Energy (BLE) and connected device integration (health, fitness, audio) * React Native development, debugging and stabilisation of existing apps * iOS development (iPhone, iPad, Apple Watch, Apple TV) * App review and pre-submission optimisation * End-to-end system design (device ↔ mobile ↔ backend) I have worked with global brands including Bose, Corsair, Musclegun, SC Johnson and others, delivering production applications across consumer, health and wellness sectors. My focus is always on delivering reliable, production-ready applications that perform consistently in real-world use. I’m comfortable working with both startups and established teams, and can quickly step into existing projects to provide clear direction and deliver results.

🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗖𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝗼𝗿 I bring over 8+ 𝘆𝗲𝗮𝗿𝘀 of experience in Development Technology, with expertise across various domains. 💼 𝗖𝗼𝗿𝗲 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 🔹 Backend Interaction: REST API, JSON, XML 🔹 Social Media Integration: Facebook, Twitter, Instagram, Google, Apple 🔹 Real-time Communication: XMPP, Socket, Firebase, Twilio, Agora 🔹 Payment Integration: PayPal, Stripe, Square 🔹 Geolocation & Mapping: Google Maps, Apple Maps, GPS, Location Tracking 🔹 Live Streaming: Audio/Video Streaming 🔹 Push Notifications & Analytics: Firebase, FCM, Firestore, Firebase Analytics 🔹 AI & Chatbots: ChatGPT, OpenAI, AI Integration 🔹 Version Control: GitHub, GitLab, Bitbucket 🔹 MERN Stack: MongoDB, Express.js, React, Node.js 🔹 Java Full Stack: Spring Boot, Hibernate, JPA 🔹 DevOps & Containerization: Docker, Kubernetes 🔹 Microservices Architecture: Scalable, maintainable solutions 🔹 API Development: Seamless API integration 📌 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Over the past decade, I’ve developed a diverse range of apps across multiple industries, including: 🛎️ Fintech: Payment apps, budgeting tools 🛎️ Healthcare: Telemedicine, health records apps (HIPAA-compliant) 🛎️ E-commerce: Shopping apps, delivery tracking 🛎️ Real Estate: Property listing apps, mortgage calculators 🛎️ Education: E-learning platforms, quiz & assessment apps 🛎️ Travel & Tourism: Travel booking apps, tour guide apps 🛎️ Food & Restaurant: Food delivery, table reservation apps 🛎️ Entertainment: Streaming apps, event ticketing 🛎️ Automotive: Car rental, vehicle tracking apps 🛎️ Fitness & Wellness: Workout tracking, nutrition apps 🛎️ Social Networking: Social media, dating apps 🛎️ IoT & Bluetooth: IoT control apps, smart device control 🛎️ Blockchain & Cryptocurrency: Wallet apps, blockchain solutions 🌟 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? 🔹 Uncompromising Quality: High-performance apps tailored to your needs, built with precision and attention to detail. 🔹 Timely Delivery: I pride myself on delivering projects on time, every time. 🔹 Full-stack Expertise: From Android and iOS to backend systems and databases, I have the skills to handle your entire project. 🔹 Cutting-edge Technologies: Always up-to-date with the latest AI, IoT, and AR trends. 🔹 Cost-effective Solutions: I offer top-quality results without breaking your budget. 🔹 Long-term Partnerships: I focus on building lasting client relationships through trust and high-quality work. 🔹 Love to accept challenging work. 🔹 Availability of presence for work. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵: 🔸 Mobile Development: Kotlin, Java (Android), Swift, Objective-C, SwiftUI (iOS) 🔸 Cross-Platform: Flutter (Dart), React Native 🔸 Backend & Web Development: Node.js, PHP, Python, Laravel, Express.js, Django 🔸 Frontend Development: React.js, HTML5, CSS3, JavaScript, Bootstrap, jQuery 🔸 Databases: SQLite, MySQL, MongoDB, PostgreSQL 🔸 DevOps: Docker, Kubernetes, GitLab CI/CD 🔸 Latest Trends: AI, IoT, Blockchain 💬 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡: I offer a free consultation to explore how we can collaborate and achieve your project goals. Let's schedule a quick introductory call to discuss your needs and how I can assist you. Even if we don't end up working together, you'll walk away with valuable tips and insights that could benefit your project. Simply click the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button, and let's start a conversation to see what we can create together! 🙌 𝗧𝗵𝗲 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗺𝗲: Mobile App Developer, Mobile App Development, Android App Development, iOS App Development, Native App Development, Android Developer, iOS Developer, Cross-Platform Development, Custom App Solutions, Backend Development, Full Stack Developer, API Integration, Mobile UI/UX Design, Kotlin Developer, Swift Developer, Java Developer, SwiftUI Developer, Flutter Developer, Dart Developer, React Native Developer, Node.js Developer, PHP Developer, Python Developer, Laravel Developer, Express.js Developer, Django Developer, React.js Developer, HTML5 Developer, JavaScript Developer, jQuery Developer, Bootstrap Developer, Firebase Developer, AWS Developer, Google Cloud Developer, Docker Developer, Kubernetes Developer, DevOps Developer, Mobile App Design, expert-level iOS app development. Regards, Ravi Jasoliya