> Markdown version of [/jobs/ext/373843-full-stack-app-developer](https://www.wearedevelopers.com/jobs/ext/373843-full-stack-app-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Full-Stack App Developer

- **Company:** SPLENDID RESEARCH GmbH
- **Location:** Kiel, Germany (Remote available)
- **Salary:** €36,000.0 - €40,000.0
- **Contract:** Permanent contract
- **Skills:** Flutter, Web Interfaces, JavaScript (Programming Language), App Store (IOS), User Authentication, Data Integrity, Relational Databases, Push Technology, Mobile Application Software, NoSQL, Standard Sql, SQL Databases, Firebase, Backend, Git, Data Layers, Dart, Google Play, Restful APIs, Multiplatform, Software Version Control
- **Published:** June 7, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=21d5905d777a9d5e

## About the Role

Do you have experience in SQL?, * Proficiency in Flutter & Dart for cross-platform mobile development

 * Strong knowledge of Firebase (Firestore, Auth, Cloud Functions, Hosting, FCM)
 * Solid SQL skills and experience with relational database design
 * Experience building and consuming REST APIs
 * JavaScript proficiency for web and backend scripting
 * Familiarity with push notification infrastructure and delivery systems
 * Experience with version control (Git) and CI/CD pipelines
 * Understanding of mobile app deployment on Google Play Store and Apple App Store, You are a self-starter who can navigate ambiguity, make smart architectural decisions independently, and deliver results with a high bar for quality. You think like a product owner, ship like an engineer, and always have the end user in mind.

## Description

We are looking for a talented and driven Full-Stack App Developer to take full ownership of the MOBROG application. You will be responsible for developing and maintaining both the front-end and back-end of our mobile platform, while continuously shipping high-impact features that directly drive business growth. This is a high-ownership role for someone who thrives in a fast paced environment and takes pride in building polished, scalable products., * Own the end-to-end development of the MOBROG mobile app, from front-end implementation to backend architecture

 * Build and maintain cross-platform mobile applications using Flutter
 * Design and manage relational and NoSQL databases, with a strong focus on Firebase (Firestore, Authentication, Cloud Functions, Storage)
 * Write and optimize SQL queries and manage structured data layers
 * Architect and implement push notification systems (FCM and equivalent services) for user engagement and retention
 * Develop supporting web interfaces and internal tooling using JavaScript and modern web frameworks
 * Identify and deliver new app features with measurable business impact - from scoping to production
 * Monitor app performance, crash reporting, and analytics to drive continuous improvement
 * Ensure app security, data integrity, and compliance with platform guidelines (iOS & Android)
 * Collaborate with stakeholders to translate business requirements into technical solutions


## Related Videos

- [Using Serious Tech for a Silly Game - How to Build an MVP with Flutter](https://www.wearedevelopers.com/videos/728-using-serious-tech-for-a-silly-game-how-to-build-an-mvp-with-flutter)
- [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom)
- [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94)
- [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis)
- [Intro to Flutter Development](https://www.wearedevelopers.com/videos/170-intro-to-flutter-development)
- [Flutter Packages and Plugins - A Look Under the Hood](https://www.wearedevelopers.com/videos/555-flutter-packages-and-plugins-a-look-under-the-hood)

## Related Articles

- [Basic And Advanced Networking in Dart and Flutter](https://www.wearedevelopers.com/magazine/112-basic-and-advanced-networking-in-dart-and-flutter)
- [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies)
- [Flutter Developer Salary [2023]](https://www.wearedevelopers.com/magazine/199-flutter-developer-salary-2023)
- [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers)
- [8 No-Code App Builders](https://www.wearedevelopers.com/magazine/300-8-no-code-app-builders)
- [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025)