Senior Backend Engineer

GLS/NXT

full-time

Posted on:

Location Type: Hybrid

Location: Berlin • Germany

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Job Level

Senior

Tech Stack

AWSCloudDockerKafkaKotlinKubernetesMicroservicesSpringSpring BootSpringBootSQL

About the role

  • 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
Benefits
  • 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
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
KotlinSpring BootSQLrelational databasesevent-driven architecturesKafkaSNSSQSREST API designmicroservices architecture
Soft Skills
problem-solvinganalytical skillscommunication skillscollaborationdebuggingperformance tuning