Senior Backend Engineer (m|w|d) - Java/Kotlin, AWS & CRM Tech

Meyandy LLC; Berlin; Vor Ort; EUR 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Free breakfast

Excellent lunch

Free coffee

Rooftop terrace

Job bike/Deutschlandticket

Fitness options

Company events

Zusammenfassung

idealo internet GmbH in Berlin seeks a Senior Backend Engineer to design, implement and maintain scalable CRM-focused systems using Java/Spring Boot or Kotlin on AWS.

You will collaborate with data engineers, product managers and other stakeholders to deliver robust data flows, GDPR-compliant pipelines and improvements to CI/CD and monitoring.

The role includes owning services end-to-end, guiding architectural decisions and mentoring junior engineers to boost development efficiency.

Qualifikationen

• Strong experience in backend development with Java (Spring Boot) or Kotlin.
• Solid understanding of cloud-based architectures, preferably on AWS (e.g. Lambda, S3, Glue, SNS/SQS).
• Hands-on experience with CI/CD pipelines, infrastructure as code (e.g. AWS CDK, Terraform), and monitoring.
• Familiarity with event-driven systems and tools such as Kafka, as well as microservice architectures.
• Good knowledge of SQL and experience handling structured and semi-structured data.
• Nice-to-have: Experience working with data pipelines, APIs, and data integration processes (schemas, transformations, ETL).
• Experience with TypeScript or Snowflake.
• Experience with AI/LLM-assisted engineering (Claude, ChatGPT).

Aufgaben

• Design, implement, and maintain reliable and scalable software systems and data flows for CRM and user engagement use cases.
• Collaborate with Software Engineers, Data Engineers, Product Managers, and other stakeholders to deliver robust solutions that integrate across domains and teams.
• Contribute to the team’s architecture and technical decision‑making, ensuring high code quality and operational excellence.
• Take ownership of services throughout their lifecycle, from design and implementation to monitoring and improvement.
• Ensure best practices for testing, CI/CD, and cloud infrastructure are applied and continuously improved.
• Support and mentor less experienced engineers by sharing knowledge, conducting code reviews, and fostering a collaborative team culture.
• Explore and adopt new tools and technologies to improve development efficiency and system performance.

Kenntnisse

Java/Kotlin backend

AWS cloud

CI/CD

Event-driven systems

Microservices

SQL data handling

APIs/ETL

TypeScript/Snowflake

AI/LLM-assisted engineering

Tools

Kafka

AWS CDK

Terraform

Jobbeschreibung

Senior Backend Engineer (m|w|d) - Java/Kotlin, AWS & CRM Tech — idealo internet GmbH, Berlin

Team CRM Tech is responsible for delivering the technical infrastructure that enables idealo's CRM campaigns. They build and maintain systems that handle identity resolution, subscriptions, data flows, and message delivery, while ensuring GDPR compliance and supporting personalized user experiences.

About your new role

Design, implement, and maintain reliable and scalable software systems and data flows for CRM and user engagement use cases.

Collaborate with Software Engineers, Data Engineers, Product Managers, and other stakeholders to deliver robust solutions that integrate across domains and teams.

Contribute to the team’s architecture and technical decision‑making, ensuring high code quality and operational excellence.

Take ownership of services throughout their lifecycle, from design and implementation to monitoring and improvement.

Ensure best practices for testing, CI/CD, and cloud infrastructure are applied and continuously improved.

Support and mentor less experienced engineers by sharing knowledge, conducting code reviews, and fostering a collaborative team culture.

Explore and adopt new tools and technologies to improve development efficiency and system performance.

Skills & Requirements

• Strong experience in backend development with Java (Spring Boot) or Kotlin.
• Solid understanding of cloud-based architectures, preferably on AWS (e.g. Lambda, S3, Glue, SNS/SQS).
• Hands‑on experience with CI/CD pipelines, infrastructure as code (e.g. AWS CDK, Terraform), and monitoring.
• Familiarity with event-driven systems and tools such as Kafka, as well as microservice architectures.
• Good knowledge of SQL and experience handling structured and semi-structured data.
• Nice-to-have: Experience working with data pipelines, APIs, and data integration processes (schemas, transformations, ETL).
• Experience with TypeScript or Snowflake.
• Experience with AI/LLM-assisted engineering (Claude, ChatGPT).

What you can expect at idealo

At idealo you can expect You want to further your education? We take your personal development goals seriously 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.

Office and perks

• Free organic breakfast
• Excellent free lunch (vegan and vegetarian)
• Free coffee, lemonades and after-work beer
• "standard foosball"
• Fabulous rooftop terrace with view of the whole of Berlin where you can network with colleagues from our group of companies
• Free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the pme-Familienservice
• Job bike or Deutschlandticket for full flexibility on your way to work and beyond, environmentally friendly, too!
• Many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs
• 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!

Location

Berlin

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Mots-clés : Technology & Data.