Hire the Best API Developers
in Ethiopia

I build backend systems for fintech, healthcare, and SaaS products where reliability is non-negotiable. My most recent engagement was a US broker-dealer fundraising platform serving 10+ institutional clients — where I owned 5+ backend subsystems end-to-end for over a year, from schema design through Azure deployment. Real financial transactions. Real investor data. Real consequences if something breaks. ──────────────────────────────────── WHAT I HAVE ACTUALLY BUILT IN PRODUCTION ──────────────────────────────────── ✔ Bulk export pipeline — processed 100,000+ investor records via chunked BullMQ jobs with streamed output to Azure Blob. Fully non-blocking API under heavy load. ✔ White-label theming engine — issuer customizations trigger background jobs that compile CSS bundles, save to Azure Blob, and inject via CDN into the frontend, eliminating per-request rendering overhead. ✔ Offering versioning system — complex state transitions, investor eligibility rules, and audit-safe data mutations for broker-dealer flows. ✔ Event-driven notification pipeline — BoldSign digital signing + SendGrid email, unified and fully traceable. ✔ Zero-downtime .NET 7 migration of a live hospital management system — modernized stack, resolved performance bottlenecks, no disruption to healthcare operations. ✔ Ethiopian calendar engine built from scratch — replaced all Gregorian logic across payroll, scheduling, leave, and reporting for a multi-country workforce platform. ──────────────────────────────────── WHERE I ADD THE MOST VALUE ──────────────────────────────────── ✔ You have a backend that works but feels fragile — I find what breaks it and fix it properly. ✔ You need a complex domain built right the first time — payments, workflows, eligibility rules, audit trails. ✔ You need async/background job systems that don't block, fail silently, or fall apart under load. ✔ You need someone who takes full ownership of a subsystem — not someone who needs hand-holding on every task. ──────────────────────────────────── TECH STACK ──────────────────────────────────── Backend: NestJS · Node.js · ASP.NET Core · TypeScript · C# Databases: PostgreSQL · MySQL · SQL Server · MongoDB Async: BullMQ · Redis · Event-driven architecture Cloud: Azure Blob Storage · Azure CDN Realtime: SignalR · WebSockets DevOps: Docker · GitHub Actions CI/CD Auth: JWT · RBAC Integrations: SendGrid · BoldSign · OpenAI API ──────────────────────────────────── IF THIS SOUNDS LIKE YOUR SITUATION ──────────────────────────────────── Send me a message describing your backend problem. I'll tell you directly whether I can help and how I'd approach it — no fluff.

I am an experienced backend and API developer. I have worked on different projects starting from the database design upto backend and frontend. I have mostly worked on JavaScript(including Node.js, React.js and Vue.js. I have worked on a speech recognition project for our native language using python. I have also worked on payment integration(Mpesa) for a Kenyan based project.

If you are building a SaaS product, startup MVP, or custom web application, I help you ship a scalable, production-ready product without wasting time or budget. I work with founders and businesses to turn ideas into working products that are actually usable, testable, and ready for real users. No unnecessary complexity. No rewrites. Just clean, fast, production-ready development. The difference: my systems have served 600,000+ real users. 30% faster backend. 50% less processing time. These are not portfolio pieces. They are live systems running right now. Full-stack engineer specializing in Next.js, React, NestJS, and Node.js API development, building scalable SaaS platforms, AI-powered web applications, and production-ready MVPs designed for performance, growth, and long-term reliability. REAL RESULTS • 30% backend boost on a platform serving 600,000+ active users • 50% faster order processing through SaaS workflow automation • 70% faster product management in a live e-commerce SaaS platform • 25% less operator workload through React and Next.js UI optimization Real systems. Real users. Real impact. WHAT GETS BUILT • SaaS platform development: multi-tenant architecture, subscription billing, role-based access • MVP development: full-stack SaaS MVPs delivered fast • AI integration: OpenAI API, Claude API, LLM features, AI chatbots • Next.js development: App Router, SSR, SSG, ISR, API routes • React development: dashboards, SPAs, admin panels, TypeScript, Tailwind CSS, shadcn/ui • NestJS development: REST API, GraphQL API, microservices • Node.js development: scalable, secure backend systems • Full-stack development: end-to-end Next.js, React, Node.js, NestJS apps • Angular development: enterprise UI, RxJS, NgRx • ASP.NET Core development: C#, Entity Framework Core • Flutter development: cross-platform iOS and Android apps • Stripe integration: subscriptions, Stripe Connect, webhooks • Admin dashboard development: data-heavy, high-performance interfaces • Real-time app development: WebSockets, Socket. io • Figma to code: pixel-perfect UI • Performance optimization: fix slow APIs and unstable systems • Cloud and DevOps: AWS, Docker, Vercel, CI/CD, GitHub Actions HOW WORK IS DONE • Clean TypeScript code using SOLID principles • Fully tested with Playwright and Jest (unit, integration, end-to-end) • Clear communication and consistent updates • Reliable delivery with no surprises TECH STACK Frontend: Next.js · React.js · Angular · TypeScript · Tailwind CSS · shadcn/ui · Material UI Backend: Node.js · NestJS · Express.js · ASP. NET Core · C# · REST API · GraphQL · Microservices Database: PostgreSQL · MongoDB · Redis · Prisma · TypeORM · Supabase Mobile: Flutter · Dart · Firebase Cloud: AWS (EC2, S3, Lambda) · Docker · Vercel · CI/CD · GitHub Actions Testing: Playwright · Jest · unit testing · integration testing · end-to-end testing Tools: Stripe · WebSockets · Socket. io · OpenAI API · Claude API · Git · GitHub Next.js developer · React developer · Node.js developer · NestJS developer · full-stack developer · full-stack React developer · SaaS developer · MVP developer · AI developer · TypeScript developer · Angular developer · ASP. NET Core developer · Flutter developer · Stripe developer · GraphQL developer · PostgreSQL developer · MongoDB developer · API developer · web app developer · admin dashboard developer · full-stack Next.js developer Based in Addis Ababa, Ethiopia (UTC+3, strong overlap with European clients). Available now. Send a message to start building.

Professional Summary 🚀 I’m a passionate software engineer specializing in crafting innovative, AI-enhanced applications, automation tools, and cross-platform mobile solutions that deliver seamless user experiences and streamline complex workflows. My expertise spans building robust full-stack web applications, mobile apps using Flutter, and integrating artificial intelligence to solve real-world challenges. 💻📱 I develop intelligent systems, from AI-powered chatbots leveraging large language models (LLMs) to browser extensions and mobile applications that enhance user interactions with real-time processing. My work focuses on creating scalable, efficient, and user-centric software, blending modern web and mobile development with advanced AI and automation techniques. 🌟 What I Can Deliver 🔧 🤖 AI-Powered Solutions: Custom AI agents built with LLMs like OpenAI and Anthropic for task automation and intelligent decision-making. 🔄 Automation Scripts: Tools to eliminate repetitive tasks, boosting efficiency in backend, frontend, and mobile environments. 🌐 Web Scraping Utilities: Dynamic, prompt-driven scraping solutions for extracting data from websites and multimedia platforms. 🧩 Browser Extensions: Client-side Chrome tools enabling features like real-time translations and UI enhancements. 🖥 Full-Stack Web Applications: High-performance web apps using React, Next.js, Python, and FastAPI for seamless functionality. 📱 Mobile Applications: Cross-platform mobile apps developed with Flutter, delivering native-like performance and user-friendly interfaces. 📦 Machine Learning Integration: Deployment of ML models, including computer vision solutions like YOLO, for specialized use cases. ⚙️ API Development: Secure and efficient backend APIs using FastAPI and Python to power web and mobile applications. 🧠 AI-Driven Features: Integration of LLMs into web platforms, mobile apps, and workflows for enhanced interactivity. Technical Expertise 🛠 Languages: Python, JavaScript, TypeScript, Dart, HTML, CSS 🐍 Frontend Technologies: React, Next.js, TailwindCSS, Flutter 🎨 Backend Technologies: FastAPI, Django 🔗 AI/ML Frameworks: OpenAI, Anthropic, YOLO, LangChain 🤯 Automation & Scraping Tools: Selenium, Playwright, BeautifulSoup 📊 Browser Extensions: Chrome API, Manifest V3 🌍 Other Tools: Git, PostgreSQL, Docker, Vercel 🐳

10+ years of professional experience Long-term clients across multiple industries High-volume, production-ready applications built Reliable, scalable systems Built and deployed If you’re here, chances are something isn’t working as it should: Your web app feels slow, outdated, or unreliable Development is dragging longer than expected Your product works… but not smoothly You need someone who can handle both frontend and backend without gaps That’s where I come in. Turning ideas into working, scalable products isn’t just about writing code it’s about making everything connect properly, perform well, and stay maintainable as you grow. 100% Job Success Top Rated Consistent long-term client relationships With 10+ years of experience in full stack development, I build clean, efficient, and scalable applications that are designed to handle real users, real data, and real growth. What I Do Best: ⨀ Full Stack Web Development: End-to-end development using modern JavaScript frameworks — fast, responsive, and built for usability. ⨀ Frontend Development: Creating clean, intuitive interfaces with React, Next.js, and modern UI practices. ⨀ Backend Development: Building reliable APIs and server-side logic with Node.js, Express, and scalable architecture. ⨀ Database Design & Optimization: Working with SQL and NoSQL databases to keep your data structured, fast, and efficient. ⨀ Bug Fixing & Stability Improvements: Fixing issues at the root not just quick patches. ⨀ Performance Optimization: Improving speed, load times, and overall system efficiency. Technical Skills: ⊖ Frontend: HTML5, CSS3, JavaScript (ES6+), React, Next.js, Vue, Angular ⊖ Backend: Node.js, Express.js, Python, PHP, REST APIs ⊖ Databases: MongoDB, PostgreSQL, MySQL ⊖ Tools: Git, GitHub, Bitbucket ⊖ Deployment: AWS, Docker, Vercel, Heroku How I Work: ✔ Clear communication and realistic timelines ✔ Clean, maintainable, and scalable code ✔ Focus on performance and user experience ✔ Ability to jump into existing projects or start from scratch The goal is simple: Build applications that don’t just work but keep working as your business grows. If you need a developer who can handle both sides of your application without the usual back-and-forth, this is a good place to start. Keywords: Full Stack Developer, Full Stack, Mobile App Developer, SaaS Application Development, Full Stack SaaS Developer, MERN Stack Developer, MEAN Stack Developer, Full Stack Developer React Node, React, Node, Next.js, MongoDB, REST API, PERN, React.js, React Developer, Node.js, React Node, Backend Node.js, Node.js Developer, Full Stack MERN, MERN MEAN, MERN Developer, MERN Stack, MEAN Developer, AWS, Google Cloud, REST API, Next.js Developer, Full Stack Developer, Web Developer, API Developer, Microservices, Multi-Tenant SaaS, DevOps, SaaS, Full Stack React Developer, Full Stack Node.js Developer, Full Stack Angular Developer, CI/CD, Full Stack Development, Web Application Development, MERN Full Stack Developer, MEAN Full Stack Developer, SaaS Expert, React Full Stack Developer, Node Full Stack Developer, Multi-tenant architecture

🚀 Full-Stack Mobile App and Web App Developer | Flutter | FlutterFlow | React | Next.js | Node.js | Nest.js | n8n | AI Automation | Express.js | Fast API | Cross-Platform Expert | Python As a Full-Stack Mobile App Developer (Flutter, FlutterFlow, Node.js), I help businesses turn ideas into fast, reliable, and scalable mobile applications. With a 100% Job Success Score on Upwork and a proven record of delivering high-quality Flutter apps, I specialize in creating cross-platform mobile solutions that are beautiful, high-performing, and results-driven. ⭐ What I Offer ⭐ ✅ Flutter & FlutterFlow Development: Expert in building high-performance, cross-platform mobile apps for both iOS and Android. ✅ Backend Development (Node.js | Nest.js | Express.js): Designing secure, scalable, and high-performance APIs for seamless frontend integration. ✅ Full-Stack Expertise: End-to-end development — from UI/UX in Flutter to robust backend systems using Node.js,Nest.js, Express, and MongoDB. ✅ Database Management: Proficient in MySQL, PostgreSQL, and MongoDB for reliable and efficient data handling. ✅ App Deployment & Maintenance: Experience publishing apps to Google Play Store and Apple App Store, with long-term maintenance and support. ⚙️ Tools & Agile Methodologies ✅ Version Control: Git, GitHub, Bitbucket ✅ Project Management: Jira, Trello, ClickUp ✅ Communication: Slack, Zoom ✅ Methodologies: Scrum, Agile, Kanban — ensuring efficient collaboration and on-time delivery 💡 Why Clients Choose Me ✅ Detail-Oriented: Delivering polished, scalable, and bug-free mobile apps. ✅ Clear Communication: Transparent updates and proactive problem-solving. ✅ Performance-Driven: Apps optimized for speed, UX, and business goals. ✅ Partnership Mindset: Your vision becomes my mission — I’m fully invested in your success. 🏆 Client Reviews 🏆 ⭐️⭐️⭐️⭐️⭐️ “Asegid exceeded our expectations and proved to be an excellent developer.” ⭐️⭐️⭐️⭐️⭐️ “Delivered exactly what we needed with great quality and professionalism. Highly recommend!” 👨‍💻 About Me With 3+ years of experience in mobile and web app development, I’m passionate about transforming complex ideas into intuitive digital experiences. I focus on clean architecture, maintainable code, and user-centric design — helping startups and enterprises scale their technology with confidence. Keyword Full stack developer | Full stack web developer | Full stack mobile developer | Full stack app developer | Full stack engineer | Senior full stack developer | Full stack JavaScript developer | Full stack startup developer | Flutter developer | Flutter app developer | Flutter mobile app developer | Flutter iOS Android developer | Cross platform mobile app developer | Mobile app developer | Mobile application developer | FlutterFlow developer | FlutterFlow expert | FlutterFlow app builder | Cross platform app developer | iOS Android app developer | Web application developer | React developer | React.js developer | Next.js developer | Next.js full stack developer | Frontend developer | Modern web app developer | Startup web developer | Backend developer | Node.js developer | Node.js backend developer | NestJS developer | NestJS backend expert | Express.js developer | REST API developer | API integration developer | FastAPI developer | Backend API specialist | AI automation developer | AI workflow automation | n8n developer | n8n automation expert | Workflow automation developer | Business process automation | No-code automation expert | Automation engineer | AI integration developer | OpenAI integration developer | MongoDB developer | PostgreSQL developer | MySQL developer | Database design expert | Backend database optimization | Scalable backend developer | Startup app developer | MVP developer | SaaS developer | SaaS full stack developer | MVP mobile app | Startup MVP expert | App deployment expert | Google Play Store deployment | Apple App Store deployment | App maintenance developer | Long term app support | Production ready apps | Clean architecture developer | Scalable application developer | High performance app developer | Secure backend developer | Maintainable code expert | Upwork top rated developer | Reliable app developer | Long term developer | Dedicated full stack developer | Remote full stack developer | Agency-level developer | Flutter full stack developer | Full stack Flutter developer | Mobile and web app developer | Web and mobile developer | AI automation specialist | n8n workflow automation | Node.js NestJS developer | React Next.js developer | Full stack SaaS developer | Cross platform Flutter expert | Backend API developer | Startup tech partner | Senior Flutter developer | Senior backend developer | Senior mobile app developer | Senior web developer | Technical consultant | Software engineer | Hire Flutter developer | Hire full stack developer | Hire mobile app developer | Hire backend developer | Hire AI automation expert|Firebase Supabase integration