Hire the Best iOS Developers
in Romania

Senior Android Developer | iOS Developer | 5+ Years of Experience I help startups and product teams build polished, high-performance mobile apps for Android and iOS. I specialize in native Android (Kotlin, Jetpack Compose) and iOS (Swift, SwiftUI) development, with hands-on experience taking apps from zero to production, including architecture, ASO, and store submission. Alongside client work, I build and ship indie apps independently, which keeps me close to the full product lifecycle: idea, development, monetization, and growth. ✅ Available for Remote Contract | B2B | Project-based ✅ Remote-first | Europe-based (Romania) 🛠 Tech Stack: Kotlin | Swift | Jetpack Compose | SwiftUI | Android SDK | Ktor | Room | Retrofit | Hilt | Coroutines | Flow | GraphQL | REST APIs | Firebase | Supabase | SQLite | Git | Figma | Xcode | Android Studio | RevenueCat | Adapty 🏭 Industries: Healthcare | Food & Delivery | Logistics & IoT | Energy & Mobility | AI & Chatbots | Productivity | Lifestyle

Over 3+ years of Swift, iOS development experience (business, entertainment, applications). I'm developing great iOS applications in reasonably low amount of time and I have wide experience with iOS standard frameworks as well as third parties in development of business, productivity, entertainment apps... I worked and delivered few applications of various complexity. My scope is to become an expert iOS Developer...

Senior iOS developer specializing in Swift, SwiftUI, and production-grade Apple-platform apps. I’m deeply specialized in SwiftUI and have pushed it to its limits across complex production apps: custom layouts, advanced state management, async data flows, navigation, animations, performance tuning, UIKit/AppKit interop, and large modular codebases. I help founders and teams turn product ideas into polished, maintainable iOS/macOS apps. My work usually spans architecture, implementation, UX judgment, debugging, integrations, and release readiness. I’m especially strong with offline-first apps, realtime sync, Apple ecosystem integrations, extensions, widgets, Siri/Shortcuts, Spotlight, and AI-powered product features. Clients usually bring me in when they need more than ticket execution: someone who can take initiative, make sound technical decisions, improve the product experience, and ship reliably.

Senior iOS & Android developer with 8 years of experience. Skilled in Swift, Kotlin, React Native and Flutter. Focused on Maintainability, Testability, and Scalability. Specialized in building native and cross-platform apps from scratch for startups & mid-sized companies. Hello, My name is Dimitri Străuneanu and I am part of a two-man development team based in Romania 🇷🇴, with over 8 years of experience in building native and cross-platform iOS and Android apps. Technical Skills iOS - Swift (8 years experience) Android - Kotlin (5 years experience) React Native: TypeScript / JavaScript (3 years experience) Flutter: Dart (1 year experience) Backend - Firebase, Vapor (Swift), MySQL We operate by strict standards, including Clean Architecture for both native and cross-platform, application of SOLID principles, comprehensive unit testing for all use cases, adherence to F.I.R.S.T rules for TDD, and creation of reusable components. We also leverage templates to eliminate repetitive tasks and improve productivity. These practices ensure code quality, maintainability, and scalability, fostering a collaborative and accountable team environment. Check how we write code: iOS (Swift): github.com/BeeWise/travelling-ios-app Android (Kotlin): github.com/BeeWise/jokes-android-app Cross-platform (React Native, Typescript): github.com/BeeWise/jokes-react-native-app Cross-platform (Flutter, Dart): github.com/BeeWise/jokes-flutter-app Contact Email: dimitri@beewise.dev Website: beewise.dev CV: beewise.dev/strauneanu.dimitri Other information: Time Zone - Our time zone Eastern European Summer Time (GMT+3) Task Management - We use Jira or Trello Communication - Slack, Email, Skype, Zoom, Google Meet Availability: +40 hours / week Agile / Scrum methodology We are willing to sign an NDA and B2B contract. Client reviews Ivan, Impulzity "Impressed on the detail quality not only on the functional side, but also on the visuals! Besides, transparent and direct in communication and results. Well done, any time again!" Mike Lanza, Streetography "Streetography employed Bee Wise as its mobile app developers from 2016 to 2019. It's been a wonderful relationship, and Bee Wise has performed extremely well. During those three years, they took over and completely rewrote our iOS and Android apps, and added many significant new features. They learned Android development during working for us, and became a fabulous one-stop mobile software development shop. They're amazingly independent and responsive, and need very little direction. Literally, I ask them to implement something on both platforms, and they do it. Thanks, guys!"

I am an iOS developer, with an experience of over 10 years in implementing multiple projects at the companies I have worked at and a couple freelancing projects. I have developed projects from scratch as well as take over/continue development for projects that were already in progress. I have worked with the following technologies: SwiftUI, Combine, Firebase, Realm, Location, Motion, Maps, push notifications, vpn, Google SDKs, Facebook SDK, keychain, Alamofire, Core Data & others.

========================== ========================== I'M HUMAN, NOT CHATGPT!!! =========================== == 🏆 Why work with me? 🥇 AI Expert with a Human Approach🥇 Manning Publications Technical Reviewer (Efficient AI in Practice & Enterprise RAG) 🥇 EU Commission AI Expert. Most voice AI demos break on the first real call. Mine don't. As an AI Developer, AI Voice Developer and AI Agent Developer, I ship systems handling 500+ concurrent calls at $0.09 each with 91% completion — customers genuinely can't tell it's not a person. Hire an AI Chatbot Developer who measures outcomes: 100% answer rate, +28% bookings, 1,750+ automated tests in CI. 📩 Send your project brief - as your AI Developer I reply within 2 hours with a concrete action plan. 🥇 Top-Rated AI Developer on Upwork, ROI-focused: 5+ yrs AI/ML, 10+ yrs backend & data (Deloitte, PepsiCo, Health Union). 🥇 AI Voice Developer: 500+ concurrent calls, $0.09/call, 91% completion, 1,750+ tests in CI. 🥇 AI Chatbot Developer: WhatsApp/Telegram/Web bots in EN/DE/FR/RO as a 24/7 sales engine. 🥇 AI Agent Developer: 40x faster builds, 80x lower cost, 22x ROI on fraud detection. ❇️ AI Voice & Chatbot Development As an AI Voice Developer I build full pipelines: Deepgram/Whisper → GPT-4/Claude → ElevenLabs/Cartesia — 500+ concurrent calls, sub-$0.10/call. AI Voice Developer for dental clinics: 100% answer rate, +28% bookings vs. human baseline. As an AI Chatbot Developer I own conversational business logic for WhatsApp, Telegram and Web — multilingual (EN/DE/FR/RO), integrating ManyChat, Botpress and OpenAI API. AI Chatbot Developer and AI Voice Developer setups act as a 24/7 sales engine: answering-machine detection over 1,000+ streams cut call spend up to 60%. ❇️ AI Agent Architecture & Autonomous Workflows As an AI Agent Developer I architect systems on LangGraph and CrewAI — platform rebuild: 40x faster bot development, 80x lower cost, 10x faster deployment. AI Agent Developer work on lead generation, deal tracking and CRM automation — uplift retention designed for reactivation 8% → 15–23%, bonus spend cut to 40–50% (3–4x ROI). Autonomous AI Agent workflows on Slack, Shopify and enterprise backends — fraud clustering targeting 50–60% abuse reduction at 22x ROI. Every AI Agent Developer engagement scales processes without adding headcount: a QA agent raised coverage 2% → 25%. ⚙️ LLM Engineering & Advanced RAG As a senior LLM Engineer and AI Developer, I solve the "hallucination problem" — Schema-Guided Reasoning makes the LLM predictable: accuracy 66% → 91%. Advanced LLM pipelines with Vector Databases (Pinecone, Weaviate, Milvus), terabyte-scale RAG on AWS Kendra + Bedrock: retrieval 15 min → 2–3 min. Custom fine-tuning, prompt engineering, production LLM infrastructure with source attribution, RBAC and audit trails. Detection pipelines designed to cut alert noise 200+/day → ~25, surfacing 4x more real cases (false positives 85% → 12%). 🛠️ FULL-STACK TECH STACK & DATA SCIENCE As an AI Developer: Python, FastAPI, Docker, AWS, Asyncio. As a Python Developer: LangChain, LlamaIndex, LangGraph, PyTorch. As a Web Developer: frontend frameworks, responsive platforms, API integration. As a Data Scientist: analytics pipelines, model evaluation, terabyte-scale warehouses from scratch. ❇️ WHAT YOU GET WITH EVERY PROJECT Hire me as your AI Developer: production-ready, scalable, documented code with full CI/CD on AWS. As a professional Python Developer I keep your system robust; as a data scientist, your data gets maximum analytical precision. Whether it's an AI Chatbot Developer task for support or an AI Agent Developer workflow for outbound sales, you get one senior owner end to end. As a web developer and agentic ai developer, I pair a data analyst's precision with python full stack developer agility — data-driven apps with trackable analytics. 🌐 EXPERTISE ACROSS THE spectrum For Enterprises: Lead Python Developer, AI Agent Developer and machine learning consultant — 15+ years in regulated finance, healthcare, telecom, iGaming, with AI agent RAG pipelines over your data. For Startups: AI Voice Developer, AI Chatbot Developer and python full stack developer — rapid deployment of AI sales agent, AI voice chatbot and AI agent SaaS products. For Deep Tech: as a data scientist and machine learning specialist — VIP detection designed to cut time-to-identify 40–60%, predictive modelling as a data analyst, generative AI agent and AI voice assistant systems. Need a Senior Python Developer, AI Developer, AI Voice Developer, AI Chatbot Developer or AI Agent Developer who understands business logic and architecture — WhatsApp AI chatbot, AI phone agent, machine learning pipelines, AI agent N8N workflows, part data analyst, part machine learning engineer, part AI call agent creator? My goal is Enterprise AI with clear ROI. Let's connect. 👉 Send your project brief — your AI Developer replies in 2 hours with a free AI visibility audit. 24.08.2026