Senior Distributed Systems Engineer - Platform Engineering

RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company is the market leader in driving performance using Deep Learning across the entire purchase funnel.

Founded in 2012 and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients.

In 2026, RTB House launched rtb.com, a self-service platform specifically designed to allow small and medium-sized businesses and agencies to deploy auto-built creatives and maximize performance on any budget.

If you enjoy working on technically complex and challenging solutions, have a strong interest in system-related topics such as deployment, monitoring, databases, and load balancing, and have experience leading the design and development of complex projects while coordinating the work of others, this role could be a great fit for you.

You Will

• Plan and then hands-on lead further development within a given technical area like deployment, monitoring, databases or load balancing, in the context of existing infrastructure within RTB House;
• Coordinate the work of a project team of 3-4 people, also making arrangements with other teams and units within RTB House;
• Ensure the reliability and scalability of the solutions built.

Desired Experience

• Excellent understanding of how complex IT systems work - from the hardware level, through software, to algorithms;
• Ability to proactively define requirements, ask appropriate questions and draw conclusions that will combine technical constraints and business needs;
• Ability to lead the design and implementation of a solution;
• Experience in leading project teams;
• Willingness to be involved in topics that go beyond programming and design, such as responsibility for technical areas or communication with other teams;
• Proactive attitude, independence in taking action;
• Extensive experience in programming and readiness to implement key system elements as well as involvement in code reviews;
• Good knowledge of methods of creating concurrent programs and distributed systems;
• Ability to critically analyze created solutions in terms of performance (from estimating the theoretical performance of designed systems to detecting and removing actual performance problems in production);
• C1 level in English and Polish.

Selected technologies used

• Java, Python
• Kubernetes, Prometheus
• Aerospike, Memcached
• Google Cloud Platform, BigQuery, MinIO
• Kafka, Clickhouse
• PostgreSQL
• Elasticsearch
• Jenkins, Graphite

We Offer

• Attractive compensation;
• Work in a team of enthusiasts who are willing to share their knowledge and experience;
• Flexible cooperation conditions - we do not have core hours, we do not have holiday limits;
• Access to the latest technologies and the possibility of real use of them in a large-scale and highly dynamic project;
• You can work fully remotely or in a hybrid model (we have an office in Warsaw and Cracow).