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About the Role

GLS/NXT is seeking a Senior Backend Engineer to help build the OOH Platform, a scalable system for managing parcel locker networks across multiple countries. This role offers the opportunity to work in a fast-paced environment, solve real user problems, and build reliable backend systems that enhance logistics. The ideal candidate is driven by impact, thrives in collaboration, and excels at creating elegant technical solutions for complex challenges.

Responsibilities

Design, build, and maintain server-side applications focusing 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 throughout the development lifecycle.
Proactively and effectively troubleshoot, debug, and upgrade existing software systems.
Stay current with emerging technologies and industry trends to foster team innovation.

Requirements

5+ years of proven experience as a Backend Engineer or similar role in a cross-functional team.
Proficiency in Kotlin for backend development.
Strong hands-on experience with Spring Boot for 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 with incremental delivery and continuous feedback.
Strong problem-solving and analytical skills, with a focus on debugging and performance tuning.
Excellent written and verbal communication skills in English, capable of explaining complex technical concepts clearly.

Skills

Kotlin
Spring Boot
SQL
Relational Databases
Event-driven architectures
Kafka
SNS/SQS
REST API design
Microservices architecture
AWS
Docker
Kubernetes
Agile methodologies
Problem-solving
Debugging
Performance tuning
Communication

Location

Berlin Mitte

Work Type

Hybrid
Full-time

Experience Level

Senior
5+ years

Salary/Compensations

Transparent and competitive compensation
Clear bonus system

Benefits

Dynamic workplace with international projects and growth opportunities
Hybrid working mode with a tailored remote policy
Personal budget (1.000€) for learning and development
Office space in Berlin Mitte with top-tier equipment
Clear bonus system enabling participation in performance
Monthly team cooking, regular events, and offsites
30 days of yearly holiday
Rewards for recommending new team members

About the Company

GLS/NXT builds the next generation of logistic experiences driven by technology in the Logistics and eCommerce sector.
Operates with startup speed and corporate muscle, focusing on user needs.
Consists of project teams acting as startups with business responsibility.
Is part of GLS IT Services GmbH.

Equal Opportunity

GLS/NXT is an equal opportunity employer, prohibiting discrimination based on race, colour, religion, marital status, age, national origin, ancestry, disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression.
Celebrates diversity and is committed to creating an inclusive environment for all employees.