Hire the Best App Development Freelancers
in Sri Lanka

I am a multi-skilled Software Engineer and IT Specialist with strong experience across software development, technical support, UI/UX design, data processing, AI content creation, and accounting/business operations, enabling me to deliver complete, end-to-end solutions for clients worldwide. Front-End Developer, Back-End Developer, Full-Stack Developer 💻 Software Engineering & Application Development I build reliable and efficient applications using modern technologies, with a focus on clean architecture, performance, and usability. Technologies & Frameworks: HTML, CSS, JavaScript, JavaEE, Spring Boot, Java, JavaFX, MVC, Hibernate, JDBC, Node.js, TypeScript, MongoDB, Firebase, REST APIs, MySQL, SQL, BootStrap, Tailwind CSS Projects Include: Android License Reminder App (Firebase, SMS/Email alerts, secure data handling, Sri Lanka–specific validation) Bookshop Management System (Inventory, billing, customer records) Personal Portfolio Website built from scratch using core web technologies 🖥️ IT Support & System Troubleshooting I provide professional remote IT support for Windows, Linux, and macOS, helping clients resolve issues quickly and securely. ✔ OS Troubleshooting & Optimization ✔ Software Installation & Configuration ✔ Virus & Malware Removal ✔ Performance Tuning ✔ Remote Support (AnyDesk, TeamViewer, RDP) ✔ Virtual Machines & Security Tools 🎨 UI/UX & Product Design I design and improve modern web & mobile interfaces that are clean, intuitive, and conversion-focused. ✔ UI/UX Design & Redesign ✔ Figma & Adobe Photoshop ✔ Wireframing & Usability Testing ✔ Layout Refactoring & Visual Consistency ✔ Mobile & Web App Interface Improvements 📱 Mobile App Testing (Android & iOS) I ensure mobile apps are ready for release through thorough manual testing. ✔ Functional & Usability Testing ✔ Bug Reporting with Screenshots ✔ UI & Navigation Testing ✔ Cross-device & Version Testing ✔ Performance & Responsiveness Checks 🤖 AI Content Creation & Automation I create high-quality AI-powered content using ChatGPT, Gemini, Copilot, helping clients grow digitally and automate workflows. ✔ AI Image, Video, Audio & Text Content ✔ Marketing & Social Media Content ✔ Business Automation ✔ Scalable Content Solutions 📊 Excel & Data Specialist I transform raw data into clean, useful insights. ✔ Data Cleaning & Formatting ✔ Dashboards & Reports ✔ Excel Formulas & Pivot Tables ✔ Power Query & VBA Macros ✔ Google Sheets Automation 📑 Accounting, Business & Admin Support With hands-on experience in retail, wholesale, and business management, I also support financial and operational tasks. ✔ Accounting Assistance & Bookkeeping ✔ Financial Reporting & Reconciliations ✔ Inventory & Transaction Processing ✔ Data Entry & Documentation ✔ Business Operations Support 🌍 Translation & Transcription Professional multilingual services with cultural accuracy: ✔ English ⇄ Tamil, Sinhala, Arabic ✔ Business & Legal Translation ✔ Subtitles & Transcription ✔ Proofreading & Localization Translate (translator) and Transcript (transcriptor) 🌟 Why Clients Choose Me ✔ Multi-skilled & cost-effective ✔ Detail-oriented & reliable ✔ Clear communication ✔ On-time delivery ✔ Confidential & professional ✔ Long-term collaboration focused Whether you need software development, IT support, UI/UX design, mobile testing, AI content, data solutions, or business support, I bring accuracy, efficiency, and professionalism to every project. 📩 Let’s work together and build solutions that truly make an impact.

🏆 Top Rated Plus Freelancer on Upwork 🎯 5+ Years Experience in Flutter 📈 30+ Mobile Apps Built and Published Looking for a seasoned Flutter developer to transform your ideas into high-performance, visually stunning mobile applications? With over five years of experience in Flutter and native app development, I help clients worldwide achieve their goals with apps that are both functional and engaging. My Expertise 📱Cross-Platform Development: Flutter, Dart 📱State Management: BloC, Provider, Riverpod, GetX 📱Backend Integration: Firebase, REST APIs, SQL 📱Native App Development: Android (Java, Kotlin), iOS (SwiftUI) 📱Social Media Integrations: Facebook, Google, Twitter 📱Payment Gateways: Stripe, PayPal, Skrill, Flutterwave, PayStack 📱Advanced Features: Messaging SDKs, Google Maps, MapBox, Live Streaming 📱Ad Integrations: Various advertisement SDKs 📱UI/UX Design: Crafting beautiful user interfaces with smooth animations 📱Design Patterns and Architectures: MVC, MVP, MVVM, Clean Architecture 📱UI Frameworks: Material Design, Cupertino 📱Backend Technologies: Firebase Suite, MySQL, MongoDB, Node.js, Laravel 📱Version Control: Git, GitHub, Bitbucket 📱CI/CD: Codemagic, GitHub Actions, Fastlane 📱Testing: Test-Driven Development, JUnit, Mockito, Espresso 📱APIs and SDKs: REST APIs, Stripe, Google AdMob, Agora, Google Analytics 📱App Distribution: Google Play Console, Apple App Store With a deep understanding of the complete development lifecycle and a proven track record, I ensure every app I build not only looks great but also provides a seamless and enjoyable user experience. Why Choose Me? 🚀Client Satisfaction: Long-term contracts with highly satisfied clients 🚀Versatility: Experienced in working with startups, SMEs, and large organizations 🚀Communication: Strong focus on clear and consistent communication 🚀Leadership: Excellent at leading and mentoring development teams What I Offer 👉Full-cycle app development: From idea to deployment 👉Cross-platform apps: iOS, Android, Web, Windows 👉Backend integrations: Secure and scalable solutions 👉Continuous support: Ongoing maintenance and updates 👉Bug fixing and optimization: Ensuring high performance and reliability 👉App distribution: Publishing apps on Google Play and Apple App Store Let’s work together to bring your vision to life. Contact me to kickstart your project and create a digital experience that exceeds expectations!

I build high quality mobile and desktop applications. Whether you need a native iOS app, a complex Android app, or a cross platform solution, I have 3+ years of experience making tech easy for my clients. Core Services: ✅ Native apps - iOS (Swift/Xcode) & Android (Java/Android Studio) ✅ Hybrid apps - Flutter ✅ Desktop apps - Mac & Windows Why Hire Me? ✅ Full Cycle - From concept to App Store/Play Store/Microsoft store deployment. ✅ Versatile - 3+ years of experience with both Native and Cross-platform stacks. ✅ Modern Tech - Integration of AI and Blockchain features. Let's bring your idea to life.

Senthil Kumaran | Developed over 95 apps | Expert Android Developer | 16+ Years in Software Engineering | 11+ years of Mobile Development Seasoned developer with 11+ years of focused Android expertise and 16+ years in full-cycle software development. Equipped with an MSc. in Advanced Software Engineering from the University of Westminster, UK, I combine academic rigor with hands-on technical mastery to deliver scalable, high-performance mobile solutions. Technical Excellence Android Development: Native app development, API integration (Google Maps, Firebase), and performance optimization. Full-Cycle Mastery: Proven track record in ideation, architecture design, testing, and deployment. Tools & Practices: Git, GitHub/Bitbucket, unit/automated testing, and Agile workflows. Professional Strengths 🛠️ Problem-Solver: Tackle complex technical challenges with systematic analysis and innovative solutions. 💡 Self-Driven: Thrive in independent or team environments with a lead-by-example mindset. 🔄 Adaptive Learner: Passionate about emerging technologies, continuously refining skills through self-study and experimentation. 🎯 Results-Focused: Deliver client-aligned outcomes by balancing efficiency, scalability, and maintainability. Why Work With Me? Client-Centric Approach: Transparent communication, rigorous QA processes, and adherence to deadlines. End-to-End Ownership: From requirement analysis to post-launch support, I ensure seamless project execution.

Having helped thousand's of client's ranging from Fortune 500, public listed hold Co's/Groups, VC backed start ups, high performance agencies to SMB's for the past 14years Internationally we believe we can help you too with any of the following; 🔹Website Designing, App Development & Copywriting🔹ALL Social Media Marketing 🔹Client Onboarding & Setup 🔹Salesforce CS/Admin Work 🔹Slack CS/Admin Work 🔹Business Development 🔹Client Relationship Management 🔹Partnerships Establishment & Management 🔹Google Ads Setup & Optimizations 🔹Email Template Setup, Own Email Server Setup, Bulk Emailing, Cold Emailing & Marketing🔹SERP & SEO Article Writing & Ranking🔹Social Media Management🔹Google map listing creation/management🔹Ecommerce Store PPC🔹Search Engine Advertising🔹Marketing to China through Weibo or Search Engine Ads.🔹Website Traffic🔹Press Release campaigns on reputed online news sites for brand credibility And exposure.🔹Play store/App store App Marketing And Promotion.🔹Artist Music Promotion🔹Image Background Removal 🔹Graphic Design- Logo, Social Media Posts, Character Design, Mascot Design, Leaflets etc We also undertake whitelabel orders for management companies/consultants or agencies where they can then focus on onboarding more high LTV new clients increasing their ARR while we will take care of delivery to you and you simply update client the results. If you need any of the above services please feel free to simply Inbox us. Best Regards, NW(Network Agency Owner)

👨‍💻 Overview I am a full-time freelancer with 10+ years of experience developing native mobile applications. My focus is on building scalable, performant, and user-friendly apps using React Native and its modern ecosystem. I specialize in delivering end-to-end solutions — from architecture and UI design to deployment and maintenance — ensuring high-quality results for clients worldwide. 🛠 Technical Skills Core Expertise - React Native (cross-platform mobile development) - TypeScript (strongly typed, maintainable codebase) Tools & Frameworks - Expo, Expo EAS, Expo Routers (rapid development & deployment) UI Styling - NativeWind (Tailwind CSS for React Native) State Management - Zustand → Local state management - TanStack Query → Networking APIs & server state Forms & Validation - React Hook Form (form handling) - Zod (schema validation) Databases - Supabase/Postgres - NEON/Postgres - Firebase/Firestore Payments - Stripe (secure payment integration) Authentication - Clerk (modern authentication & user management) 📱Key Strengths - 10+ years building native mobile apps with a focus on performance and reliability. - Expertise in cross-platform development using React Native. - Strong background in API integration, database design, and cloud services. - Skilled at creating responsive, modern UI/UX with NativeWind. - Proven ability to deliver secure apps with Stripe payments and Clerk authentication. - End-to-end project ownership: architecture, coding, testing, deployment, and support. 🌍 Work Style - Full-time availability on Upwork. - Clear, professional communication. - Step-by-step collaboration with clients to ensure transparency. - Focus on long-term partnerships and delivering measurable business value. ✅ Why Hire Me - 10+ years of proven experience in mobile app development. - Modern React Native stack with TypeScript, Expo, Zustand, TanStack Query. - Ability to integrate payments, authentication, and databases seamlessly. - Dedicated to quality, scalability, and client satisfaction.