(Senior) Backend Engineer idealo Intelligence (m|w|d)

United States Digital Space LLC; Berlin; Vor Ort; EUR 90.000 - 130.000; Vollzeit

Zusammenfassung

idealo in Berlin is seeking a (Senior) Backend Engineer to help build a modern data platform and data-driven marketing solutions. You will design, develop, and operate backend services and data workflows while owning the full lifecycle of your services.

The role involves building Java/Spring Boot microservices, leveraging cloud-native technologies on AWS, and working with event-driven architectures. English proficiency is required. German language skills are a plus.

Qualifikationen

• Several years of backend or platform software development with Java.
• Experience with Spring Boot or comparable frameworks.
• Experience building and operating cloud-native applications using containerised environments (AWS, Kubernetes, Docker).
• Experience with event-driven architectures, e.g. Kafka.
• Experience with PostgreSQL, MongoDB, or Redis.
• You challenge assumptions and use data to discuss ideas; you commit to decisions and maintain team momentum.
• Professional proficiency in English.

Aufgaben

• Design, develop, and operate backend services and data workflows for processing, anonymising, and enriching large-scale datasets.
• Take ownership of the full lifecycle of services from architecture to production operations.
• Build Java and Spring Boot microservices with event-driven architectures and cloud-native technologies on AWS.
• Ensure high software quality through automated testing, code reviews, and observability practices.
• Use AI-assisted development tools to improve productivity and code quality.
• Collaborate with Product and Engineering teams and share knowledge via pair programming, code reviews, and documentation.

Kenntnisse

Java

Spring Boot

Cloud AWS

Kubernetes

Docker

Event-driven Kafka

PostgreSQL

MongoDB

Redis

English proficiency

German language skills

Tools

Kafka

Jobbeschreibung

As a (Senior) Backend Engineer in the idealo Intelligence team, you will help build the technical foundation that enables us to understand our users better and provide our merchants with data-driven marketing solutions. As part of a newly formed team, you will have the opportunity to build a modern data platform from the ground up and actively shape its architecture, systems, and processes from day one.

The position is available in full or part‑time.

About your new role

• Design, develop, and operate backend services and data workflows for processing, anonymising, and enriching large-scale datasets.
• Take ownership of the full lifecycle of your services - from architecture and implementation through to production operations.
• Build Java and Spring Boot microservices while working with event‑driven architectures and cloud‑native technologies on AWS.
• Ensure high software quality through automated testing, code reviews, and observability best practices.
• Use AI‑assisted development tools thoughtfully to improve productivity and code quality.
• Collaborate closely with Product and Engineering teams and actively share your knowledge through pair programming, code reviews, and documentation.

Skills & Requirements

Must‑have

• Several years of experience in backend or platform software development with Java.
• Experience with Spring Boot or comparable frameworks.
• Experience building and operating cloud‑native applications using containerised environments (e.g. AWS, Kubernetes, or Docker).
• Experience working with event‑driven architectures, for example, Kafka.
• Experience with PostgreSQL, MongoDB, or Redis.
• You challenge assumptions respectfully and use data and sound reasoning to discuss ideas. Once a decision has been made, you commit to it and help maintain alignment and momentum across the team.
• Professional proficiency in English.

Nice to Have

• Experience with data pipelines, PySpark, or Apache Airflow.
• Experience operating production systems.
• German language skills.

Don't meet every requirement? Don't worry. We're looking for people who will convince us with their personality and are motivated to achieve great things together with their team.

At idealo you can expect

• You want to further your education? We take your personal development goals serious and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching & mediation, we also offer you the opportunity to benefit individually from additional learning and development budget.
• And what about the office? Our office in the heart of Berlin offers free organic breakfast, excellent free lunch (vegan and vegetarian), as well as free coffee, lemonades and after-work beer, in addition to the "standard foosball". It also has a fabulous rooftop terrace with view of the whole of Berlin where you can network with colleagues from our group of companies.
• In need of additional support in any areas of your life? We offer free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the pme-Familienservice.
• You want full flexibility on your way to work and beyond? No problem with a job bike or Deutschlandticket - and it's environmentally friendly, too!
• Want to keep yourself fit? We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs.
• And what else is there? Of course, success must be celebrated! In addition to team events, you can also expect big company events and other moments of organized connection with others in the company and your team throughout the year!