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I am a dedicated and passionate Software Engineer with a robust background in backend development, particularly specializing in NestJs and Spring Boot. My experience extends to native and multiplatform mobile development with kotlin and web development with Angular, providing me with a comprehensive understanding of full-stack development. My enthusiasm for technology also drives my interest in DevOps, where I explore innovative software architecture solutions to enhance efficiency and scalability. Additionally, I have hands-on experience in native Android application development, utilizing Android Studio with both Java and Kotlin to create seamless and user-friendly mobile applications. As I continue to grow and expand my expertise, I am eager to collaborate on challenging projects and contribute to cutting-edge advancements in the software engineering field

𝐈 𝐚𝐦 𝐚 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 specializing in SaaS, MVP development, Mobile Development, AI systems, and n8n automation. As a Senior Fullstack Developer, I help SaaS founders and startups build investor-ready MVPs and scalable platforms in 6–10 weeks using modern Fullstack and AI-driven architecture. With experience as a Senior Fullstack Developer in SaaS product development and MVP delivery, I focus on building production-ready systems that combine Mobile Developer expertise, AI integration, and automation workflows using tools like n8n. Every solution is designed with scalability, performance, and business growth in mind. As a Senior Fullstack Developer working across SaaS, MVP, Mobile Developer, AI, and n8n ecosystems, I have successfully delivered 17+ projects on Upwork, helping startups launch faster and smarter. My focus is always on turning ideas into real SaaS products and MVPs with strong Mobile Development support and AI-powered features. 𝐖𝐡𝐲 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐚 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐥𝐢𝐤𝐞 𝐦𝐞? ✅ SaaS & MVP Expert: I build SaaS platforms and MVPs that are ready for investors and real users ✅ Mobile Developer Focused: Cross-platform mobile apps with Flutter and scalable backend support ✅ AI Integration: I integrate AI into SaaS and MVP systems using OpenAI, RAG, and vector databases ✅ n8n Automation: I automate workflows and business processes using n8n and AI agents ✅ Fullstack Scalability: Every SaaS, MVP, and mobile product is built with scalable architecture 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 (𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫): ✔ SaaS Development (Multi-tenant, scalable platforms) ✔ MVP Development (Fast launch in 6–10 weeks) ✔ Mobile Development (Flutter apps for iOS & Android) ✔ AI Integration (Chatbots, AI agents, RAG systems) ✔ n8n Automation (Workflow automation & backend orchestration) ✔ Fullstack Systems (React, Next.js, FastAPI, Node.js) 𝐒𝐭𝐚𝐜𝐤 𝐈 𝐮𝐬𝐞 𝐚𝐬 𝐚 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫: SaaS | MVP | Mobile Developer | AI | n8n | FastAPI | Node.js | React | Flutter | PostgreSQL | Docker | AWS I consistently combine Senior Fullstack Developer expertise with SaaS, MVP, Mobile Development, AI, and n8n automation to deliver systems that are not just functional—but scalable and revenue-ready. 📩 Let’s build your SaaS, MVP, or Mobile AI product with a Senior Fullstack Developer approach focused on speed, scalability, and automation.

I build Android dedicated-device solutions: custom Launchers, Kiosk Mode applications, BLE-connected hardware systems, and enterprise Android experiences. With hands-on experience delivering production Android applications for businesses, I help companies transform standard Android devices into reliable, purpose-built products. My expertise focuses on Android systems that go beyond traditional mobile apps, including: • Custom Android Launchers • Kiosk Mode & Lock Task Mode • Enterprise & Dedicated Devices • BLE (Bluetooth Low Energy) Integration • ESP32-Based IoT Systems • Hardware Communication & Device Control • Device Provisioning & Management • Real-Time Android Applications Over the years, I have built Android solutions that communicate directly with hardware devices, control embedded systems, and provide streamlined user experiences for dedicated-use environments. Recent projects include: ✔ Custom Android Launchers * Built launcher experiences tailored for specific business workflows * App restrictions and dedicated-device experiences * Productivity-focused launcher designs ✔ Android Kiosk Solutions * Lock Task Mode implementation * Single-purpose device workflows * Enterprise tablet deployments ✔ BLE & Embedded Device Integration * Android applications communicating with ESP32 devices * Custom BLE GATT services * Real-time device control and monitoring * JSON-based communication protocols ✔ Hardware-Connected Android Applications * Sensor integrations * LED controller systems * Industrial and IoT device communication I am particularly interested in projects involving: • Android Launchers • Kiosk Mode Applications • Dedicated Devices • BLE Communication • ESP32 Integration • Enterprise Android Solutions • Device Management Workflows • IoT Connected Products Technical Stack: • Kotlin • Jetpack Compose • MVVM Architecture • Coroutines & Flow • BLE (Bluetooth Low Energy) • Android Kiosk Mode • Custom Android Launchers • ESP32 Development • REST APIs • Material Design If you're building an Android device experience rather than just another Android app, I'd be happy to discuss your project.

Hello, I'm Ami Birhanu, a web developer with a strong background in Flask, Django, and React. With expertise in these technologies, I excel at creating robust and user-friendly web applications that meet the unique needs of my clients. Let's collaborate to bring your web development projects to life efficiently and effectively. I look forward to working with you to turn your ideas into reality.

🏗️ Mobile Architecture, 🧬 Kotlin Multiplatform (KMP), 📱 Kotlin Development, 📱 Swift Development, 🤖 AOSP Customization, 🔒 MDM & Kiosk Mode, ☎️ TelecomManager & CallKit, 📶 Hardware Integration, 💼 Mobile Security, 🤖 n8n Workflow Automation, 🚀 CI/CD Automation Senior Mobile Architect specializing in Kotlin Multiplatform (KMP), native iOS/Android, and low-level AOSP engineering. Proven track record scaling systems past a 500k+ download milestone. Expert in Kiosk mode, custom launchers, and advanced telephony handling. I build production-grade mobile architecture for high-scale products and specialized enterprise hardware. With a proven track record of scaling consumer software past a 500,000+ download milestone on the app stores, I specialize in maximizing native performance, low-level OS customization, and secure architecture. No cross-platform compromises. No generic templates. Just bulletproof, metric-driven engineering engineered to handle complex OS constraints and enterprise scale. 🏗️ Core Architecture & Multiplatform Focus Kotlin Multiplatform (KMP):Strategic implementation of shared business logic, state management, and data sync layers without sacrificing native UI responsiveness. Native iOS Ecosystem: Advanced SwiftUI, UIKit, Combine frameworks, Core Data, and secure native execution. Native Android Ecosystem:Modern Jetpack Compose, Kotlin Coroutines, Room Database, and optimized asynchronous WorkManager pipelines. Infrastructure & Workflow Automation: Custom design of robust enterprise backend integrations (REST, GraphQL) paired with complex, self-hosted n8n automation pipelines to streamline lead-to-client infrastructure. 🔧 System-Level & Hardware Specialization AOSP & Custom Launchers: Deep Android Open Source Project engineering, building modified OS images, custom launchers, and secure background usage state sequence verification. MDM & Kiosk Solutions: Hardened device management solutions and tamper-proof environments for dedicated hardware terminals and POS systems. Advanced Telephony & Call Handling:Specialized execution of native call screening, background protection services, and core OS integration utilizing Android's TelecomManager and iOS's CallKit frameworks. Hardware Interfacing:Real-time data streaming and connectivity via BLE (Bluetooth Low Energy), NFC, and custom USB-C peripherals. 📈 Scale, Security & Hardening Proven Production Scale: Successfully engineered, deployed, and scaled mobile products past a 500k+ user milestone with flawless runtime stability. Security Architecture:End-to-end security hardening including SSL pinning, jailbreak/root detection, automated biometric authentication flows, and encrypted local storage layers. Clean Lifecycle Velocity: Dedicated to maintainable code bases, utilizing automated CI/CD workflows (GitHub Actions, Fastlane) and strict adherence to native API design guidelines. 🤝 How We Collaborate Architecture First: Comprehensive technical and architectural alignment before writing the first line of code to eliminate technical debt. Enterprise Reliability: Pristine platform execution, proactive communication, and transparent timeline management. Ideal for enterprise teams requiring deep hardware/telephony integration, legacy app migrations to native/KMP architecture, or high-scale consumer products demanding elite performance optimization. Let's build a reliable, high-value solution for your infrastructure. Send a message with your project scope, and I will deliver a targeted technical approach within 24 hours.

Modern applications aren't just about pretty interfaces; they are about speed, scalability, and real-time data. I am a Full-Stack Developer with a deep background in Data Engineering, which allows me to build applications that don't just "work" they scale. I specialize in bridging the gap between high performance backends and intuitive React frontends, using Microservices and Kafka to handle complex, real time data flows. How I can help your business: • Full-Stack Development: I build responsive, SEO-friendly frontends in React and Tailwind CSS, powered by robust APIs built in Express.js or Django. • Real-Time Architecture: I implement Apache Kafka and WebSockets for applications that require instant updates, such as live dashboards, notification systems, or financial trackers. • Scalable Microservices: I design modular architectures that allow your platform to grow without the bottlenecks of a traditional "monolith" app. • Database & Search Optimization: I optimize data retrieval using PostgreSQL, Redis, and Elasticsearch for lightning-fast search and filtering. My Core Technical Stack: • Frontend: React, TypeScript, Vite, Tailwind CSS. • Backend: Express.js (Node.js), Django (Python), Flask. • Data & Events: Apache Kafka, Spark, Real-time ETL Pipelines. • Infrastructure: Microservices, Docker, HDFS, Cloud Deployment. Whether you are looking to build a data-intensive SaaS platform from scratch or need to migrate your existing app to a scalable microservices architecture, I provide the technical expertise to ensure your system is fast, reliable, and future-proof. Let’s discuss your project and how we can build a solution that scales with your users.