
Bonial International
Job Title: Senior Backend Engineer (Java)
Employer: Bonial (part of Axel Springer SE)
Location: Germany (Berlin preferred – hybrid: up to 20% mobile work from anywhere in Germany, plus option to work from abroad)
Salary: Not specified (competitive, based on experience)
Employment Type: Full‑time or part‑time
Visa Sponsorship: ✅ Yes – visa sponsorship provided for candidates from outside Germany.
About Bonial
bonial helps you save time, money and paper! We are a digital advertising partner for offline businesses – we support retailers in their marketing activities and help them find a new audience. Would you like to join and be a part of the digitalisation of retail?
Bonial is part of Axel Springer SE and is disrupting the retail landscape as the leading “Drive to Store” partner in Germany and France. Through our platforms kaufDA and MeinProspekt in Germany, and Bonial in France, we connect millions of users with their favourite shops and brands – driving real impact every single day.
We are in the midst of an exciting growth phase, scaling fast and transforming the way people discover retail. At Bonial, we thrive in a high‑performance, fast‑paced environment fueled by motivated, results‑driven individuals who are passionate about making a difference.
Join our cross‑functional team
Are you passionate about building scalable backend systems that power high‑traffic applications? Do you enjoy taking ownership and working closely with product managers and frontend teams to deliver impactful features? If you care about clean architecture, system reliability, and modern cloud technologies, we’d love to hear from you!
About the role
As a Senior Backend Engineer, you will play a key role in designing, building, and scaling the backend systems that power our products. You will take ownership of backend components within your domain team and collaborate closely with mobile engineers (Android & iOS), product managers, and other stakeholders to deliver high‑quality user experiences. You’ll work on systems used by millions of users, ensuring performance, scalability, and reliability in a fast‑paced, agile environment.
Responsibilities
Design, develop, and maintain scalable backend services using Java and modern frameworks.
Build and evolve RESTful APIs and ensure consistency, compatibility, and high performance across services.
Architect and operate systems on AWS, leveraging cloud‑native services where appropriate.
Take ownership of production systems, including deployment, monitoring, and incident handling.
Contribute to the development of high‑traffic, real‑time, geo‑located applications.
Ensure backend systems meet high standards of scalability, maintainability, and security.
Collaborate closely with frontend and mobile teams to deliver seamless end‑to‑end features.
Improve and unify APIs and backend components across domains.
Work with technologies such as AWS, PostgreSQL, and Elasticsearch.
Contribute to Agile ways of working (Scrum, Kanban).
What we’re looking for
Experience
Strong professional experience in backend development with Java.
Technical skills
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).
Engineering mindset
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.
Collaboration & communication
Strong communication skills with the ability to clearly express ideas and trade‑offs.
Experience working in cross‑functional, agile teams.
Fluent in English (German not required).
Personal qualities
Self‑driven, reliable, and detail‑oriented.
Team player with a proactive, solution‑oriented mindset.
Nice to have
Experience with high‑traffic or real‑time systems.
Experience with Infrastructure as Code (e.g., Terraform).
Enjoyment of tackling complex technical challenges.
What we offer
✅ High growth story – Bonial is a high‑growth, dynamic company leading the shift from print to digital.
✅ Innovation & tech – high‑tech company focused on innovative technology, leveraging AI and other tools.
✅ Exciting environment for professional development – strong support, feedback culture.
✅ Diversity – equal opportunity workplace; safe space regardless of race, religion, sex, sexual orientation, age, disability, gender identity.
✅ Wellbeing – free access to nilo.health (mental health app), gym subsidy (Urban Sports Club), corporate pension scheme.
✅ Sustainability – engage in green projects.
✅ Flexibility – up to 20% mobile work from anywhere in Germany, option to work from abroad; 28 days holiday (increasing to 30), extra days for special occasions.
✅ Modern office – Zen Rooms, fully equipped gym, roof terrace.
✅ Free lunch – when at the office, plus free drinks, fruit, snacks.
✅ Social culture – regular team events.
✅ Visa sponsorship – provided for candidates from outside Germany.
✅ Partner for retail – empower retailers to reach customers effectively.
How to apply
Apply now through the Bonial careers portal. Check out bonial_people on Instagram or read more about Bonial culture and tech on Medium.
To apply for this job please visit bonial.recruitee.com.