> Markdown version of [/jobs/ext/1371484-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/1371484-senior-backend-engineer). 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 Backend Engineer - **Company:** GLS Group - **Location:** Berlin, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Software Quality, Relational Databases, Software Debugging, Performance Tuning, Cloud Services, Software Systems, SQL Databases, Spring-boot, Backend, Kotlin, Event Driven Architecture, Kubernetes, Apache Kafka, Restful APIs, Amazon Simple Queue Service (SQS), Docker, Microservices - **Published:** July 22, 2026 - **Apply:** https://www.adzuna.de/details/5802982234 ## About the Role * 5+ years of proven experience as a Backend Engineer or in a similar role within a cross-functional team environment. * Proficiency in Kotlin for backend development. * Strong hands-on experience with Spring Boot, building robust and scalable services. * Solid experience with SQL and relational databases, including schema design and performance optimization. * Experience with event-driven architectures (e.g., Kafka, SNS/SQS). * Proficiency in REST API design principles, microservices architecture, and cloud-based services (preferably AWS). * Experience deploying applications using containerization and orchestration tools (e.g., Docker, Kubernetes). * Comfortable working in an Agile environment, embracing incremental delivery and continuous feedback. * Strong problem-solving and analytical skills, with a keen eye for debugging and performance tuning. * Excellent written and verbal communication skills in English, with the ability to explain complex technical concepts clearly to diverse audiences. ## Description Join GLS/NXT as a Senior Backend Engineer and help shape the future of out-of-home delivery. We're building the OOH Platform - a scalable system that empowers carriers across multiple countries to deploy, manage, and optimize parcel locker networks with ease. At GLS/NXT, you'll work at the intersection of startup energy and enterprise muscle - moving fast, experimenting freely, and owning your work end-to-end. We care deeply about solving real user problems and building reliable, high-quality backend systems that make logistics smarter and more connected. If you're driven by impact, thrive in a collaborative and fast-moving environment, and love turning complex challenges into elegant and simple technical solutions, we'd love to have you on board. Let's build the future of logistics - together. Tasks * Design, build, and maintain server-side applications with a focus on performance, scalability, and reliability. * Collaborate with cross-functional teams to define, design, and ship new features and improvements. * Drive best practices in code quality, security, and testing across the development lifecycle. * Troubleshoot, debug, and upgrade existing software systems proactively and effectively. * Stay current with emerging technologies and industry trends to continuously drive innovation within the team. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [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) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [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) ## Related Articles - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Software Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/194-software-developer-salary-in-germany-2023) - [How to Find Tech Jobs in Berlin](https://www.wearedevelopers.com/magazine/291-how-to-find-tech-jobs-in-berlin)