Senior Software Engineer

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Full job description

RTB House seeks a Senior Software Engineer to design, build, and optimize backend systems for real-time bidding and machine learning at internet scale. The role involves handling billions of daily transactions with strict latency and reliability requirements in a distributed environment. Candidates must have expertise in complex IT systems, proficiency in Python, C++, Java, or Scala, Linux skills, strong performance optimization abilities, and deep knowledge of algorithms and data structures. Polish language proficiency at C1 level is required. Experience with machine learning, GPU programming, distributed systems, Big Data technologies (Hadoop, Kafka, Spark, etc.), and cloud platforms (GCP) is a plus. Responsibilities include developing ML training platforms, optimizing system performance, ensuring reliability and scalability, and benchmarking Big Data and ML technologies. The position offers a competitive salary, remote work or office options in Warsaw or Cracow, and a B2B contract.