Senior Backend Engineer, AdTech (m/f/d)

About your tasks:

• Design, develop, and maintain scalable backend services and APIs supporting retail media products.
• Build and operate distributed systems that process large volumes of advertising, campaign, auction, and analytics data.
• Develop low-latency, highly available services for ad serving, targeting, bidding, and campaign execution.
• Optimize real-time and high-throughput data systems, integrating with MongoDB, Redis, and Algolia to support fast ad delivery and campaign insights. Work with BullMQ and RabbitMQ for reliable message queueing across distributed services.
• Ensure software quality through automated tests (TDD/BDD preferred).
• Design and implement distributed caching strategies, cache invalidation mechanisms, and performance optimizations.
• Ensure systems meet reliability, performance, scalability, and security requirements.