Java Backend Engineer

We’re looking for a Java Backend Engineer to join LoopMe — a global AI-powered ad tech company redefining how brands connect with consumers across the open internet.In this role, you’ll help build and scale our Data Management Platform (DMP) — a massively distributed, high-throughput system processing billions of events daily, creating rich device and audience profiles, and exporting data segments to 50 global partners and exchanges in real time.You’ll work on complex backend challenges around performance, scalability, data pipelines, and real-time processing, helping power the infrastructure behind large-scale advertising auctions and audience targeting.This is an opportunity to work on truly high-load systems, collaborate with experienced engineers, and have direct impact on a product used by some of the biggest players in the ad tech ecosystem.What you'll be doing:Developing features and optimizing performance for large-scale data pipelines (Spark jobs, HBase, Kafka)Designing and optimizing data schemas for relational and NoSQL databasesBuilding microservice applicationsCore qualifications:2 years of engineering experienceProficiency in Java with a strong understanding of concurrency and distributed systemsExperience with Spring Framework or similar IoC frameworksExperience with JPA or other ORM frameworksStrong knowledge of SQL and experience with modern RDBMS (PostgreSQL)Self-motivated, reliable, and comfortable working across a large multi-module codebaseAdditional experience we’d value:Experience with Apache Spark or other large-scale data processing frameworksExperience with HBase or other NoSQL/columnar storesExperience with KubernetesExperience with KafkaExperience with AI/LLM integrations in backend servicesBenefitsFlexible working schedule with a hybrid type of workAnnual performance bonusOne month of workation (you can work from any part of the world for one month)Multikafeteria