--- title: "Backend Development" description: "Backend development with GoLang, Microservices & Cloud! Scalable APIs and systems for apps and web applications. Enterprise-ready from the start." canonical_url: "https://robocitrus.com/en/leistungen/backend-entwicklung" locale: en meta: keywords: "Backend Development, GoLang, Microservices, API Development, Cloud Infrastructure, Kubernetes" "og:description": "Backend development with GoLang, Microservices & Cloud! Scalable APIs and systems for apps and web applications. Enterprise-ready from the start." "og:image": "https://robocitrus.com/images/hero-image.webp" "og:title": "Backend Development" "twitter:description": "Backend development with GoLang, Microservices & Cloud! Scalable APIs and systems for apps and web applications. Enterprise-ready from the start." "twitter:image": "https://robocitrus.com/images/hero-image.webp" "twitter:title": "Backend Development" --- > Index of every page on this site: [llms.txt](https://robocitrus.com/llms.txt) **Ready to rock? πŸš€** # **Backend systems that properly scale and perform! ⚑** Your app needs a backend that grows with it! With GoLang, Microservices and Cloud Infrastructure, I create the perfect foundation for your app. From 100 to 100,000 users - your app runs stable and scales automatically! [Discuss project](https://robocitrus.com/en/kontakt) [All projects](https://robocitrus.com/en/projects) ![Backend systems that properly scale and perform! ⚑](https://robocitrus.com/cdn-cgi/image/w=2048,h=1952,q=75/images/hero-image.webp) **My Services** ## **How I make your project succeed! πŸš€** Three pillars for your digital success - from idea to launch! ![App Backend APIs πŸš€](https://robocitrus.com/cdn-cgi/image/q=75/images/shield.webp) ### **App Backend APIs πŸš€** The powerhouse behind your app! I develop RESTful and GraphQL APIs with GoLang that supply your app with data. User management, real-time features, push notifications - everything your app needs! - User Management & Auth - Push Notification System - Real-time Data Sync ![Microservices Architecture πŸ—οΈ](https://robocitrus.com/cdn-cgi/image/q=75/images/puzzle_pice.webp) ### **Microservices Architecture πŸ—οΈ** Monoliths are yesterday's news! I structure your backend into intelligent microservices. Each service does one thing really well - scalable, maintainable and fail-safe. - Service-oriented architecture - Container-based deployments - Circuit breaker pattern ![App-Ready Infrastructure 🌐](https://robocitrus.com/cdn-cgi/image/q=75/images/trending.webp) ### **App-Ready Infrastructure 🌐** Your backend grows with your app! Kubernetes, Docker, CI/CD - automatic scaling when your app goes viral. You still need the app development too? Perfect! Plus marketing website for the complete package! - App-first auto-scaling - Zero-downtime updates - App performance monitoring **Ready?** ## **Let's bring your project to life! πŸš€** **While others are still planning, your system is already running.** [**Get free consultation!**](https://robocitrus.com/en/kontakt) [**View success stories**](https://robocitrus.com/en/projects) Free consultation Transparent pricing Fast implementation **Features** ## **Backend Tech Stack! ⚑** Modern technologies for maximum performance and scalability! πŸš€ ### **GoLang** Performance & Concurrency Champion 🐳 ### **Docker** Container-based deployments ☸️ ### **Kubernetes** Container Orchestration 🐘 ### **PostgreSQL** Enterprise Database System πŸ“¦ ### **Redis** High-Performance Caching ⚑ ### **GraphQL** Flexible Query Language πŸ”— ### **gRPC** High-Performance RPC Framework πŸ“Š ### **Prometheus** Monitoring & Alerting **Success Stories** ## **Backend Power in Action! πŸ’ͺ** Real-world examples of backend systems that rock! ![Hundeo](https://robocitrus.com/cdn-cgi/image/q=75/images/hundeo.webp) **AI-powered Training App** ### **Hundeo** From startup idea to successful app with thousands of active users. Personalized training, community features and AI integration - a prime example of successful app development! **iOS & Android****AI Integration****Community****Personalization** [**View project **](https://robocitrus.com/en/projects/hundeo) ![Fussballhero](https://robocitrus.com/cdn-cgi/image/q=75/images/fussballhero.webp) **Gaming & Training App** ### **Fussballhero** Gamification meets sports! This app motivates young footballers through playful elements and social features. Shows perfectly how apps can positively influence behavior. **Gamification****Social Features****Motivation Design****Real-time** [**View project **](https://robocitrus.com/en/projects/fussballhero) ![Wasserradler](https://robocitrus.com/cdn-cgi/image/q=75/images/wasserradler.webp) **Booking App** ### **Wasserradler** Simple booking, smooth payment, satisfied customers! This event app shows how digital solutions can improve traditional business models. **Online Booking****Payment****Calendar****Customer Management** [**View project **](https://robocitrus.com/en/projects/wasserradler) **Frequently Asked Questions** ## **Your questions answered! πŸ’¬** The most important questions about professional backend development. ```json {"@context":"https://schema.org","@graph":[{"@id":"https://robocitrus.com/en#website","@type":"WebSite","description":"App Entwickler & Full-Stack Experte aus Deutschland. Ich baue skalierbare Apps, Backends und komplette Startup-Systeme mit Flutter, Go und Kubernetes.","inLanguage":"en-US","name":"Maximilian Flechtner - App Entwickler","url":"https://robocitrus.com/en","publisher":{"@id":"https://robocitrus.com/#identity"},"translationOfWork":{"@id":"https://robocitrus.com/#website"}},{"@id":"https://robocitrus.com/leistungen/backend-entwicklung#webpage","@type":"WebPage","description":"Backend development with GoLang, Microservices & Cloud! Scalable APIs and systems for apps and web applications. 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Performance + Simplicity = GoLang!"}},{"@type":"Question","name":"What are microservices and do I need them?","acceptedAnswer":{"@type":"Answer","text":"Microservices are like LEGO for your backend! Each service does one thing really well. Scales better, is more maintainable and if one service has problems, the rest keeps running. From a certain complexity, microservices are a game-changer!"}},{"@type":"Question","name":"What does a professional backend system cost?","acceptedAnswer":{"@type":"Answer","text":"Backend systems start at €5,000 for simple APIs and go up to €30,000+ for complex microservice architectures. The investment pays off: scalability, performance and reliability from the start!"}},{"@type":"Question","name":"How long does backend development take?","acceptedAnswer":{"@type":"Answer","text":"An MVP backend is ready in 4-6 weeks. Complex systems with multiple services need 2-3 months. The advantage: We start agile with the most important things and then expand step by step."}},{"@type":"Question","name":"Cloud or own servers?","acceptedAnswer":{"@type":"Answer","text":"Cloud first! AWS, Google Cloud or Azure - automatic scaling, worldwide availability and pay-as-you-grow. Own servers only in special cases. The cloud makes your backend flexible and cost-efficient."}},{"@type":"Question","name":"Do I need a backend if I already have an app?","acceptedAnswer":{"@type":"Answer","text":"An app without a backend is like a Ferrari without an engine! The backend manages users, stores data, handles business logic and makes your app really powerful. No scaling without a backend!"}}]},{"@id":"https://robocitrus.com/leistungen/backend-entwicklung#/schema/service/1","@type":"Service","description":"Backend development with GoLang, Microservices & Cloud! Scalable APIs and systems for apps and web applications. 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