Senior Backend Engineer (m|w|d) - Java/Kotlin, AWS, Kafka

<p class="Paragraph SCXW183918819 BCX0" style="text-align:start;"><span style="color:#121317">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. </span></p><p class="Paragraph SCXW183918819 BCX0" style="text-align:start;"><span style="color:#121317">&nbsp;</span></p><h3 style="text-align:start;"><strong><span style="color:#121317">About your new role &nbsp;</span></strong></h3><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Design, implement, and maintain reliable and scalable software systems and data flows for CRM and user engagement use cases.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Collaborate with Software Engineers, Data Engineers, Product Managers, and other stakeholders to deliver robust solutions that integrate across domains and teams.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Contribute to the team’s architecture and technical decision-making, ensuring high code quality and operational excellence.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Take ownership of services throughout their lifecycle, from design and implementation to monitoring and improvement.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Ensure best practices for testing, CI/CD, and cloud infrastructure are applied and continuously improved.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Support and mentor less experienced engineers by sharing knowledge, conducting code reviews, and fostering a collaborative team culture.&nbsp;</span></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Explore and adopt new tools and technologies to improve development efficiency and system performance.&nbsp;</span></p></li></ul><p style="min-height: 1.7em;"></p> <br> <h3 style="text-align:start;"><strong>Skills &amp; Requirements</strong></h3><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Strong experience in </span><strong><span style="color:#121317">backend development with Java (Spring Boot) or Kotlin.</span></strong></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Solid understanding of cloud</span><strong><span style="color:#121317">-</span></strong><span style="color:#121317">based</span><strong><span style="color:#121317"> </span></strong><span style="color:#121317">architectures, preferably on </span><strong><span style="color:#121317">AWS</span></strong><span style="color:#121317"> </span><strong><span style="color:#121317">(e.g. Lambda, S3, Glue, SNS/SQS).</span></strong></p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Hands-on experience with </span><strong><span style="color:#121317">CI/CD pipelines, </span></strong><span style="color:#121317">infrastructure</span><strong><span style="color:#121317"> </span></strong><span style="color:#121317">as</span><strong><span style="color:#121317"> </span></strong><span style="color:#121317">code (e.g. AWS CDK, </span><strong><span style="color:#121317">Terraform)</span></strong><span style="color:#121317">, and monitoring.&nbsp;</span></p></li><li><p>Familiarity with event-driven systems and tools such as <strong>Kafka</strong>, as well as microservice architectures.&nbsp;</p></li></ul><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Good knowledge of </span><strong><span style="color:#121317">SQL</span></strong><span style="color:#121317"> and experience handling structured and semi-structured data.&nbsp;</span></p></li></ul><p><strong><span style="color:#2e313e">Nice-to-have:</span></strong></p><ul class="BulletListStyle1 SCXW183918819 BCX0"><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Experience working with data</span><strong><span style="color:#121317"> </span></strong><span style="color:#121317">pipelines, APIs, and data integration processes (schemas, transformations, ETL).</span></p></li><li><p>Experience with TypeScript or Snowflake.</p></li><li><p class="Paragraph SCXW183918819 BCX0"><span style="color:#121317">Experience with AI/LLM-assisted engineering (Claude, ChatGPT).</span></p></li></ul><p style="min-height: 1.7em;"></p><h3 style="text-align:start;"><strong><span style="color:#121317">At idealo you can expect</span></strong></h3><ul><li><p><strong><span style="color:#121317">You want to further your education?</span></strong><span style="color:#121317"> We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching &amp; mediation, we also offer you the opportunity to benefit individually from additional learning and development budget.</span></p></li><li><p><strong><span style="color:#121317">And what about the office? </span></strong><span style="color:#121317">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.</span></p></li><li><p><strong><span style="color:#121317">In need of additional support in any areas of your life?</span></strong><span style="color:#121317"> We offer free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the </span><a rel="noopener" target="_blank" href="https://mein.familienservice.de/en/"><span style="color:#121317">pme-Familienservice</span></a><span style="color:#121317">.</span></p></li><li><p><strong><span style="color:#121317">You want full flexibility on your way to work and beyond? </span></strong><span style="color:#121317">No problem with a job bike or Deutschlandticket&nbsp;- and it's environmentally friendly, too!</span></p></li><li><p><strong><span style="color:#121317">Want to keep yourself fit?</span></strong><span style="color:#121317"> We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs.</span></p></li><li><p><strong><span style="color:#121317">And what else is there?</span></strong><span style="color:#121317"> 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!</span></p></li></ul><p><span style="color:#EFF1F8">#LI-MW1</span></p><p>Find <a href="https://www.arbeitnow.com">Jobs in Germany</a> on Arbeitnow</a>