Senior Software Engineer - Search

• Own and evolve our AWS OpenSearch infrastructure that powers ImmoScout24's core search experience, optimizing for performance, scalability, and cost-efficiency under heavy production load
• Design and deliver innovative search features that solve real user problems in the real estate domain – from semantic search and AI-powered recommendations to geospatial queries, proximity-based searches, and advanced filtering capabilities
• Architect scalable backend solutions using Java/SpringBoot, collaborating closely with product managers, data scientists, and frontend teams to turn product ideas into high-quality features that improve user experience and business outcomes
• Drive technical innovation in search and AI, bringing your expertise in search-focused machine learning, applied embedding and retrieval, ranking evaluation skills, and modern search techniques to help us explore and implement cutting-edge capabilities that keep us ahead in the market
• Mentor and elevate the team's technical capabilities, sharing your deep knowledge of search systems through code reviews, technical discussions, and hands-on collaboration with engineers across the search organization
• Monitor, troubleshoot, and continuously improve search system reliability and performance, using data-driven insights to identify bottlenecks and implement solutions that maintain excellent user experience at scale

• Bachelor's degree in computer science or related field
• Minimum 4-5 years of professional experience software development
• At least 2 years working with AWS ElasticSearch/OpenSearch
• Proficiency in Java and Kotlin with hands-on experience in applying modern best practices
• Prior experience in creating and managing AWS resources and familiarity with Infrastructure as code concept
• Business focus, coupled with the ability to critically question and challenge product managers and UX designers
• A deep passion for machine learning and search systems and a proven record of successfully delivering high-quality products
• Extensive experience in designing, building, testing, debugging, and optimizing code for large-scale distributed systems
• Excellent communication skills and the ability to collaborate effectively within a dynamic, cross-functional team
• Proven leadership skills with the ability to mentor and guide junior team members
• Strong commitment to continuous learning, curiosity, and knowledge sharing within the team

Experience in React and Typescript is a plus

• Competitive salary package and a bonus on top
• Hybrid work model with three days of on-site work per week
• 30 days of vacation per year
• Possibility to work from abroad for 10 days per year
• Relocation agency supports with visa process and an attractive relocation package
• Plus membership for tenants on ImmoScout24
• Dedicated learning time per month, online courses on ScoutAcademy, regular book challenges, structured feedback, “Lunch & Learn”-Events and individual career paths
• Professional family service to help find a childcare center or offers emergency childcare
• Bring your dog to work (upon approval)
• Subsidize public transport or Job Bikes
• Company pension scheme with an attractive subsidy
• Office is barrier-free and in the heart of Berlin right at the central station
• Own gym with regular courses, napping room, rooftop terrace, organic coffee, cafeteria, 100% green electricity and a massage therapist that comes in once a week
• Life Situation Coaching, regular health check ups
• Work with the latest technical tools and hardware