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BOBonial International GmbH

Senior Backend Engineer (Java)(m/w/x)

Berlin
Full-time, Part-timeWith Home OfficeSenior

Designing and evolving RESTful APIs and scalable backend services on AWS for digital advertising. Strong Java (21+) and Spring Boot expertise required. 28 days holiday, mental health app access.

Requirements

  • Strong professional backend development experience with Java
  • Strong expertise in Java (21+) and Spring Boot
  • Hands-on experience with AWS and cloud-native architectures
  • Experience designing Restful APIs, operating distributed systems, and microservices architectures
  • Solid understanding of inter-service communication, fault tolerance, and system resilience
  • Experience with Docker and Kubernetes
  • Familiarity with CI/CD pipelines and modern DevOps practices
  • Experience with PostgreSQL and Elasticsearch
  • Experience with observability tooling (logs, metrics, tracing — e.g., OpenSearch, Grafana, Prometheus)
  • Strong understanding of scalable system design and clean architecture
  • Strong testing discipline, including unit, integration, and contract testing
  • Ability to take ownership and make informed technical decisions
  • Comfortable making decisions with incomplete information and navigating trade-offs in production systems
  • Strong communication skills with ability to clearly express ideas and trade-offs
  • Experience working in cross-functional, agile teams
  • Fluent in English
  • Self-driven, reliable, and detail-oriented
  • Team player with proactive, solution-oriented mindset
  • Experience with high-traffic or real-time systems
  • Experience with Infrastructure as Code (e.g., Terraform)
  • Enjoyment of tackling complex technical challenges

Tasks

  • Design and develop scalable backend services
  • Maintain backend systems using Java and modern frameworks
  • Build and evolve RESTful APIs for consistency and performance
  • Architect systems on AWS with cloud-native services
  • Operate production systems including deployment and monitoring
  • Handle incidents in production environments
  • Contribute to high-traffic, real-time, geo-located applications
  • Ensure backend systems meet scalability and security standards
  • Collaborate with frontend and mobile teams for seamless features
  • Improve and unify APIs and backend components
  • Work with AWS, PostgreSQL, and Elasticsearch
  • Contribute to Agile methodologies (Scrum, Kanban)

Work Experience

  • approx. 4 - 6 years

Education

  • Bachelor's degreeOR
  • Master's degree

Languages

  • EnglishFluent

Tools & Technologies

  • Java
  • Spring Boot
  • AWS
  • Restful APIs
  • distributed systems
  • microservices architectures
  • Docker
  • Kubernetes
  • CI/CD pipelines
  • PostgreSQL
  • Elasticsearch
  • observability tooling
  • OpenSearch
  • Grafana
  • Prometheus
  • Infrastructure as Code
  • Terraform

Benefits

Mental Health Support

  • Mental health app access

Healthcare & Fitness

  • Urban Sports Club subscription subsidy
  • Fully equipped gym

Retirement Plans

  • Corporate pension scheme

Sustainability Focus

  • Sustainability project engagement

More Vacation Days

  • 28 days of holiday
  • Additional holiday days

Modern Office

  • Zen Rooms

Informal Culture

  • Roof terrace

Free or Subsidized Food

  • Free lunch
  • Free varied breakfasts

Snacks & Drinks

  • Free hot and cold drinks
  • Free fruit
  • Free snacks
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of Bonial International GmbH and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.

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