Senior Backend Engineer (m/f/d) – Kotlin/Spring Boot/AWS

Axel Springer Tech GmbH; Berlin; Vor Ort; EUR 90.000 - 140.000; Vollzeit

Benefits dieser Stelle

30 days vacation

Lunch in canteens

Relocation support

Office in Berlin center

JobRad bicycle leasing

Zusammenfassung

Axel Springer Tech GmbH in Berlin is seeking an experienced backend engineer to own core services powering our mobile apps. You will design and operate Kotlin/Spring Boot backends on AWS, ensuring scalability and reliability across our ecosystem.

The role emphasizes Kubernetes, observability, mentoring, and collaboration with product and design teams. A strong focus on code quality and long-term ownership is expected.

Qualifikationen

• Five+ years of hands-on experience as a backend or software engineer, preferably JVM-based backend systems.
• Fluent in Kotlin and experienced with Spring Boot, building and operating production-grade backend services.
• Strong AWS cloud experience (including Lambda and container workloads), plus familiarity with IAM, S3 and messaging services.
• Interested in Kubernetes, with understanding of deployments, observability and containerized workloads.
• Committed to code quality, maintainable architectures, testing and long-term ownership.
• Enthusiastic about monitoring, transparency and operable systems.
• Proven mentoring skills and ability to promote knowledge sharing across teams.
• Strong communicator who explains technical topics to product, design and engineering teams.

Aufgaben

• Take end-to-end ownership of backend services powering the mobile experience.
• Architect and implement robust backend solutions with Kotlin, Spring Boot, AWS, and Lambda to ensure long-term performance.
• Ensure reliability through monitoring, logging, metrics, alarms and health of services.
• Collaborate with MaPS platform to deploy workloads on Kubernetes with modern infra.
• Develop and document clean APIs for integration across teams.
• Mentor Android and cross-functional teammates on backend topics.
• Broaden skills by exploring Android or iOS development and product verticals.
• Shape technical vision and continuously improve architecture and processes.

Kenntnisse

Kotlin

Spring Boot

AWS

Kubernetes

Code quality

Observability

Mentoring

Cross-team collaboration

Communication

Tools

AWS Lambda

S3

IAM

Jobbeschreibung

Overview

Axel Springer is an international media and technology company with a portfolio that includes leading news brands such as BILD and WELT in Germany, ONET in Poland, and globally recognized brands like POLITICO and Business Insider. Our mission is to empower free decisions by providing trusted information.

We have completed the transformation from a traditional print publisher into a digital-first company and we continue to push the pace of product and engineering innovation.

Our strategy is clear. We aim to become the leading AI-enabled publisher in the democratic world. Artificial intelligence is not a side initiative for us. It is a core capability embedded across our products and workflows.

We believe that strong journalism is a pillar of democratic societies. If this mission resonates with you, you will find a clear sense of purpose here. Your engineering work helps millions of people access reliable information every day.

You’ll join a fast-moving, cross‑functional mobile native team of Android, iOS, and backend developers — the creative force behind Germany’s leading news apps: BILD News, Sport BILD, WELT News, reaching millions of users every month. Are you open to trying new things? Are you confident, driven and clever? Then apply for a role now with Axel Springer Tech.

We believe in the future of journalism as a business model and invest in forward‑looking technologies.

Our five essentials are the values that unite us and guide us in our commitment to freedom.

Responsibilities

• take end‑to‑end ownership of our backend services to deliver scalable, reliable systems powering our mobile experience
• architect and implement robust backend solutions with Kotlin, Spring Boot, AWS, and Kotlin‑based AWS Lambda ensuring long‑term performance and maintainability
• ensure reliability and operability of your backend services by optimizing monitoring, logging, metrics, alarming, and overall service health
• collaborate with our MaPS platform team to deploy and operate workloads on Kubernetes using modern, developer‑friendly infrastructure
• develop and document clean, efficient APIs for seamless integration with other teams and products across our ecosystem
• act as a mentor and sparring partner for Android and cross‑functional team members on backend topics to boost collaboration and knowledge sharing
• broaden your skill set by exploring Android or iOS development and gaining insight into the full product vertical
• play a key role in shaping technical vision, aligning architecture decisions, and continuously improving processes for greater product impact

Qualifications

• at least five years of hands‑on experience as a backend or software engineer, ideally in JVM‑based backend systems
• fluent in Kotlin and experienced with Spring Boot, having built and operated production‑grade backend services
• solid track record working with AWS cloud technologies (including Lambda and container‑based workloads), plus familiarity with cloud‑native patterns like IAM, S3, and messaging services
• interested in Kubernetes, understanding concepts like deployments, observability, and containerized workloads
• strong commitment to code quality, maintainable architectures, testing and long‑term system ownership
• enthusiasm for monitoring, transparency, and building systems that are easy to operate
• proven strength in mentoring colleagues, building cross‑team relationships, and actively promoting knowledge sharing in diverse environments
• strong communicator who translates complex technical topics for product managers, designers, and fellow engineers

Benefits

• your personal growth is important to us: we offer trainings and learning lunches, tech conferences, a budget for workshops and much more to expand your knowledge and your skills
• Employee offers that suit you and your life situation: whether it's a discounted public transport ticket or JobRad leasing, a bicycle garage (incl. regular bicycle service), childcare facility or our modern in‑house kindergarten
• 30 days vacation plus 10 days work from abroad
• our free food offer: we offer free lunch in our canteens
• we offer guidance on the administrative side of relocation and visa processes through our relocation agency
• collaboration thrives on direct exchange - we rely on 80% office presence and 20% mobile working
• from now a permanent full‑or part‑time position in a modern office in the heart of Berlin: http://www.axelspringer-neubau.de/

Questions and answers about the application process

The most frequently asked questions and their answers can be found on our FAQ page: career.axelspringer.com/en/faq

Diversity and inclusion

Diversity is an essential part of our corporate culture! We are looking forward to receiving all applications regardless of gender, nationality, ethnic and social origin, religion, ideology, disability, age, sexual orientation and identity.

You can find information about the representation for the severely disabled at Axel Springer here: https://career.axelspringer.com/en/rsde