Java Backend Engineer

Job Description

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