As a Senior Software Engineer, you are responsible for designing and developing IMCs platform architecture covering both the software and infrastructure aspects of the platform with a key focus on its platform search feature. The role is expected to work closely with the Tech leadership and product teams to define short- and long-term improvements to address the growth of our customer experience.What you'll be doingPlattform & Application Engineering:Partner with Software Architects, Tech Leaders, and Product Managers to analyze and transform business requirements into robust software specificationsDesign and develop highly scalable, secure, and low-latency RESTful APIs for our platformContribute to the design of distributed, cloud-native application components, ensuring resilience, observability, and operational excellenceActively participate in architecture decisions and contribute to short- and long-term technical strategiesBuild, operate, and continuously improve infrastructure and platform services following DevOps and GitOps principlesCollaborate in small, agile, cross-functional teams and contribute to knowledge sharing and mentoringSearch Technology (Full-Text & Vector):You will be a domain lead or key contributor for the platform’s search capabilities. Responsibilities include:Design, implement, and optimize search pipelines covering full-text indexing, retrieval, ranking, and facetingVector-based semantic search (ANN: HNSW, IVF, PQ, graph-based indexing, hybrid fusion techniques)Own the architecture and lifecycle of search indexes across multiple modalities (documents, metadata, embeddings)Optimize and tune search engines and vector databases, such as: Elasticsearch/OpenSearch, Pinecone, FAISS, etc.Optimize system-level performance, including: Indexing throughput, refresh strategies, segment merging, query latency, ranking accuracy, and memory/CPU footprintDesign hybrid retrieval strategies combining BM25/TF-IDF with vector similarity (RRF, fusion scoring, re-ranking models)Implement monitoring and observability for search systems, including relevancy metrics, degradation detection, and anomaly trackingWhat you'll need5+ years of professional experience in agile software developmentStrong expertise in Java, Spring Framework, and Spring BootExperience with Containers and Kubernetes or similar technologies (e.g., Docker)Solid understanding of distributed systems and cloud-native architectural patternsAdvocate of Clean Code and the DevOps culture (e.g. one of, GitLab CI, Jenkins, Gradle, Maven, Ant, Gulp, Ansible, Salt, Terraform, Prometheus, Kibana, Grafana, Logstash, Beats, Helm)Experience with cloud-native development technologies and practices is a plus (IaC, GitOps, DevOps, Cloud Computing)Knowledge of Microsoft Azure, AWS or similar cloud computing platforms is a plusFluency in English is mandatory, Fluency in German would be a big advantageBring a positive and solution-oriented mindsetSelf-motivated and self-managing, with strong organizational skillsGreat communicator that can easily explain ideas and engage people while translating business requirements into technical solutionsWhat's in it for youYou can actively participate in and drive agile approaches and processes for improving our cloud native strategyYou build and operate platform and infrastructure core services in a distributed service-oriented architecture in a small autonomous agile teamFlexible working hours, flat hierarchies, and a cooperative cultureHybrid working: We offer "Full flexibility, but not 100% remote". You can combine the advantages of both worlds depending on your personal preferencesNumerous corporate benefits, such as childcare subsidy, job ticket, sports offer, company pension scheme, employee discountsAn individual development plan for each employee guarantees continuous personal growth and learningWith a highly sophisticated onboarding program we ensure a smooth integrationYou have a share in the best practice of the e-learning industry #J-18808-Ljbffr