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 databases
• Building microservice applications
  

Core qualifications:

• 2+ years of engineering experience
• Proficiency in Java with a strong understanding of concurrency and distributed systems
• Experience with Spring Framework or similar IoC frameworks
• Experience with JPA or other ORM frameworks
• Strong knowledge of SQL and experience with modern RDBMS (PostgreSQL)
• Self-motivated, reliable, and comfortable working across a large multi-module codebase
  

Additional experience we’d value:

• Experience with Apache Spark or other large-scale data processing frameworks
• Experience with HBase or other NoSQL/columnar stores
• Experience with Kubernetes
• Experience with Kafka
• Experience with AI/LLM integrations in backend services

Benefits

• Flexible working schedule with a hybrid type of work
• Annual performance bonus
• One month of workation (you can work from any part of the world for one month)
• Multikafeteria