Senior Backend Engineer (Kotlin/Java, AWS) – Affiliate-Services (f|m|d)

As part of our Clickout-to-Revenue team, you are jointly responsible for the core of idealo – our monetization. We cooperate with approximately 50,000 e-commerce shops in Europe, from small specialized shops to large marketplaces like Amazon and eBay. Idealo's price comparison gives our retail partners access to millions of users who can find the best price for their desired product from over 560 million offers on idealo.de alone.

Idealo is specifically driving the expansion of strategic partnerships and continuously gaining new specialized shops via affiliate platforms. Our focus is on the technical integration of these platforms as well as the reliable synchronization and enrichment of the provided data. Our goal is to precisely and transparently evaluate the performance of our affiliate campaigns. Based on this, we develop targeted measures to further improve the visibility and success of our partner offers on idealo.

Do you want to make a difference and help shape the e-commerce experience of our retail partners and users? Then you've come to the right place! The position as Senior Backend Engineer (f|m|d) is advertised as a full-time or part-time position.

Your Tasks

End-to-End Responsibility

• You develop and operate business and web applications in the AWS Cloud.

• Together with your team, you are responsible for the entire value chain (YBYO): architecture, infrastructure, development, testing, security, deployment, monitoring, on-call, and maintenance.

Product Focus: Developing Scalable Affiliate Tracking

• You work on integrating new affiliate platforms – with the goal of ensuring reliable and automated clickout tracking.

• You expand and build systems for enriching and validating tracking data to enable precise performance analysis – our basis for data-driven decisions in the affiliate business.

Agile Collaboration

• You work in an agile product team with short release cycles and close cooperation with Product Lead, accounting, and other stakeholders.

• Pair programming, pull requests, code reviews, and regular feedback are a matter of course for you.

Technical Excellence

• You actively contribute ideas for process improvement, value high code quality, and continuously develop yourself – We support you with various training opportunities.

What You Bring

Must-haves

• 7+ years of experience in web application development, thereof at least 5 years with Kotlin/Java.

• Very good knowledge of AWS architecture and Infrastructure-as-Code with Terraform.

• Experience in container orchestration with Kubernetes.

• Experience in developing Lambda functions for, among other things, data processing (Python, TypeScript).

• Profound knowledge in relational (PostgreSQL, MySQL) and document-oriented databases (MongoDB, DocumentDB).

• You develop according to Clean Code and SOLID principles.

• You think in end-to-end responsibility and can clearly communicate technical concepts – also to non-technicians.

• You enjoy working in a team, sharing your knowledge, giving constructive feedback, and actively participating in pair programming, code reviews, and collaborative problem-solving.

• Good German and English language skills.

Nice-to-haves

• Experience in integrating affiliate services (e.g., AWIN).

• Background in the eCommerce environment.

• Familiarity with monitoring and observability tools (e.g., Grafana/Loki, OpenSearch).

• Expertise in implementing Security Best Practices in the Cloud.

What Awaits You at idealo

• Need a vacation? We offer you 30 days of vacation. Not enough? You can "buy" an additional 15 days each year via salary conversion.

• Want to further your education? We take your personal development goals seriously and offer you, in addition to our idealo Learning Hub, eLearning opportunities (e.g., Udemy), coaching & mediation, the possibility to individually benefit from our training budget.

• And what about the office? Our office, in the heart of Berlin, offers not only the "standard foosball table" but also excellent free lunch, as well as free coffee, lemonade, and after-work beer. You can network with colleagues from our corporate group on our beautiful rooftop terrace.

• Do you want support outside of work too? We offer free consultation and support in all life situations (professional, private, family, health, etc.) in cooperation with pme-Familienservice.

• Want to be mobile too? No problem with a Job-Bike or Deutschlandticket – and it's also environmentally friendly!

• Want to stay fit? For this, we offer many different fitness and sports options such as an Urban Sports or Gympass membership for your very personal needs.

• And what else is there? Of course, successes must be celebrated! In addition to team events, large company events await you, where we spare no expense or effort.

About idealo

idealo is a success story from Berlin: In 2000, we started with the mission to help our users make the right purchasing decisions. Over 1000 employees from 60 nations work with us on the future of online shopping. We focus on agile and self-responsible work, sustainability, and a healthy work-life balance. These values are firmly anchored in our corporate culture and are a fundamental part of our corporate philosophy.

As part of our team, you can look forward to freedom, an international and inspiring work environment. Your ideas are particularly important to us. Our product portfolio is as diverse as the people who contribute to it. Equal opportunities, diversity, and inclusion are part of our colorful corporate culture. That's why we want you as you are. Regardless of where you come from, what your skin color is, what you believe in, what gender you identify with, whom you love, or whether you have a disability.

Note for applicants with disabilities: As an applicant with a disability, you can seek advice from our representative for severely disabled persons (SBV) during the application process. Please feel free to inform us about this.

Our office is barrier-free for the inclusion of people with disabilities. Together we will see what else is needed when you start with us!

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