GLS/NXT

Backend engineer for parcel locker networks

In short

Senior Backend Engineer role building the OOH Platform at GLS/NXT, a system that helps carriers deploy, manage, and optimize parcel locker networks across multiple countries. The role sits in a cross-functional team and requires 5+ years of backend experience with Kotlin, Spring Boot, SQL, event-driven architecture (Kafka, SNS/SQS), REST APIs, microservices, cloud (AWS), and Docker/Kubernetes. Hybrid work mode based in Berlin Mitte, with English communication skills required.

About the Role
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.
Responsibilities
•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.
Requirements
•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.
Conditions
•Dynamic workplace: a digital environment with international projects and space to learn and grow.
•Flexible work conditions: hybrid working mode with a tailored remote policy.
•Focus on learning: a personal budget (1.000€) for learning and development initiatives.
•Physical space for ideas: a great office space in Berlin Mitte with top-tier equipment.
•Transparent and competitive compensation: a salary package that reflects your expertise and experience.
•Active participation: a clear bonus system enabling participation in your and the team's performance.
•Engaging team culture: monthly team cooking, regular events and offsites.
•Vacation policy: 30 days of yearly holiday.
•Reward system: rewards for the recommendation of additional team members.

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