> Markdown version of [/jobs/ext/2211917-senior-software-engineer-full-stack-68704](https://www.wearedevelopers.com/jobs/ext/2211917-senior-software-engineer-full-stack-68704). 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). --- # Senior Software Engineer Full Stack 68704 - **Company:** Instaffo GmbH - **Location:** Bonn, Germany - **Experience:** Expert - **Salary:** €70,000.0 - €90,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Confluence, JIRA, Program Optimization, Databases, Continuous Integration, Software Design Patterns, Web Development, Design of User Interfaces, Software Engineering, ReactJS, Spring-boot, Backend, Gitlab, Kotlin, Kubernetes, Information Technology, Graphql, Docker - **Published:** August 24, 2026 - **Apply:** https://www.xing.com/jobs/bonn-senior-software-engineer-full-stack-68704-157095892 ## About the Role * Fundierte Basis: Ein abgeschlossenes Studium der Informatik oder eine vergleichbare IT-Qualifikation ist für dich selbstverständlich. * Erfahrung: Du blickst auf mindestens 5 Jahre einschlägige Berufserfahrung im Software Engineering zurück (Design, Architektur, Testing). * Technologie-Fokus: Du bist Profi im Kotlin-Umfeld (Spring Boot) sowie in der Frontend-Entwicklung mit React (HTML/CSS/JS). * Methodenkompetenz: Du beherrschst Clean Code, Design Patterns und moderne Architekturstile. Sicherer Umgang mit REST und GraphQL sowie Jira/Confluence wird vorausgesetzt. * Automatisierung: Idealerweise hast du Erfahrung mit CI/CD-Pipelines (z. B. GitLab) sowie Container- Technologien wie Docker und Kubernetes. ## Description * Full-timeEmployment type: Full-time * €70,000 - €90,000 (employer salary) * Hybrid, * Full Stack Development: Du entwickelst moderne Web- und Backend-Anwendungen auf Basis von Kotlin, Reactund aktuellen Datenbank-Technologien. * End-to-End Verantwortung: Du begleitest den gesamten Software-Lifecycle in einem cross- funktionalen Team - von der ersten Idee bis zum Deployment. * Clean Code & Qualität: Du übersetzt komplexe fachliche Anforderungen (User Stories) in hochwertige, wartbare und performante Software. * Schnittstellen-Design: Du konzipierst und implementierst robuste APIs, Services und Datenmodelle. * Systemoptimierung: Du unterstützt aktiv bei Betrieb, Deployment und der kontinuierlichen Verbesserung unserer Applikationslandschaft. ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Software Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/194-software-developer-salary-in-germany-2023) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer)