Aleksey S.

Mobile App Developer specializing in React Native & Flutter. I help startups build cross-platform iOS & Android apps – from validated MVP to App Store launch. Backed by a 330+ engineer full-cycle team with 20+ years of experience, I deliver mobile applications that go beyond clean UI – covering backend API, cloud infrastructure, QA, and AI integration in a single engagement. Whether you're a founder validating your first mobile idea or a product team scaling an existing app, I focus on one goal: shipping a product that users download, use, and come back to. 💡 Case Studies 🧠 BibleLytics (Wellness & AI, Startup) – Built a full AI-powered mobile MVP from discovery phase to App Store launch. The app guides users to Bible verses based on emotional state using vector search across 400+ mapped emotions and OpenAI GPT-powered prayer generation. Delivered cross-platform iOS + Android from a single Flutter codebase, plus a web admin dashboard and landing page. Stack: Flutter · GCP · OpenAI GPT · Vector Search · JavaScript Result: Budget-efficient cross-platform delivery · validated concept before development investment · scalable architecture ready for multi-version expansion. ⚖️ Legal Beagle (LegalTech SaaS, USA) – Developed a white-label legal services platform with a 12-person team. The Android app enables real-time attorney-client collaboration: video consultations, secure messaging, e-signing, and full case management on mobile. Integrated CRM and legal document tools (Clio, DocuSign) with seamless cross-platform delivery across Android, iOS, and web. Stack: Kotlin · Android SDK · Swift · React Native · TypeScript · PHP 8 (Symfony) · AWS ECS Fargate · Firebase · Docker · CircleCI Result: Scalable white-label LegalTech SaaS · enterprise-grade security & data protection · consistent UX across all platforms and device types. 📡 Boarding Path (Smart Navigation, iOS) – Led the discovery phase for a native iOS indoor navigation platform. Conducted technical feasibility analysis, vendor evaluation (IndoorAtlas, beacons), UX design for complex indoor environments, and full documentation to launch development with zero guesswork. Stack: Swift · Native iOS · Python · Django · IndoorAtlas · AWS · PostgreSQL Result: Concept validated before a dollar was spent on development · technical risks eliminated upfront · market-ready iOS roadmap with full vendor alignment. 🏅 North Jersey Vipers (Sports, USA) – Built a cross-platform mobile app for a US sports club – enabling content sharing, team updates, and secure media storage for players, coaches, and parents. Delivered iOS + Android from a single React Native codebase within a tight budget and timeline. Stack: React Native · JavaScript · Nest.js · Node.js · AWS Result: Cost-optimized cross-platform delivery · secure content storage · minimized long-term maintenance overhead. 📱 Platforms & Frameworks React Native · Flutter · Expo Native iOS: Swift · SwiftUI · Objective-C Native Android: Kotlin · Java Progressive Web Apps (PWA) 🌐 Backend & APIs Node.js · Nest.js · PHP · Symfony · Python · Django REST APIs · GraphQL · WebSockets · Firebase Realtime Database ☁️ Cloud & Infrastructure AWS (ECS Fargate, Lambda, S3, RDS, CloudFront) GCP · Azure · Docker · Kubernetes CI/CD: Bitrise · CircleCI · GitHub Actions 🤖 AI Integration OpenAI GPT · Vector Search · AI-powered mobile features LLM-based content personalization · Intelligent recommendations AI chatbot integration for mobile apps 🔗 Mobile Integrations Stripe · Clio · DocuSign · IndoorAtlas Firebase Push Notifications · WebRTC (video consultations) App Store & Google Play – full submission and launch support 🔐 Security & Compliance HIPAA-aware mobile development · GDPR-compliant data handling Secure messaging · E-signing · Enterprise-grade authentication Biometric auth · End-to-end encryption Why teams choose us: ✅ Full platform coverage – React Native, Flutter, Native iOS (Swift) & Native Android (Kotlin) from one team, no handoffs ✅ 330+ engineers – backend, DevOps, QA, and UI/UX always available alongside mobile development, so you never hit a skills gap ✅ 2,250+ delivered projects across HealthTech, LegalTech, FoodTech, Sports, Wellness, and B2B SaaS ✅ Full-cycle delivery – from discovery and UX design to backend API, cloud infrastructure, and App Store submission ✅ AI-ready from day one – we integrate OpenAI, vector search, and intelligent features into mobile apps without slowing the timeline Send me a message – tell me about your app idea, and I'll respond within a few hours with a clear plan and honest timeline estimate.