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Senior Distributed Systems Engineer - Ad Display Platform Engineering

RTB House

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Location:
Poland

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

The Bidding Platform organization is the core of the RTB business, processing over 20 million requests per second to participate in real-time auctions and display advertisements to customers from 90+ countries. The Ad Display Team, which the job advert relates to, will be a new team sitting within the Bidding Platform, and will focus on ensuring the seamless, high-quality, and reliable display of our advertisements. The team aims to become a crucial, cross-functional group of strong Frontend/Full stack Developers and Backend Engineers with the necessary DevOps fluency to ensure team autonomy in building and maintaining solutions. We are looking for software engineers with strong interest in topics related to systems (CI/CD, monitoring, caching, web performance). If you want to work on technically complex and demanding solutions, this is the opportunity for you!

Job Responsibility:

  • Implement and maintain (in all aspects, including setting up environment, writing configuration code, monitor production) high-quality backend services for displaying Ads globally, focusing on extreme performance and scalability
  • Develop tools (deployment, testing platforms, web performance and reliability monitoring), and critical optimizations to drive measurable improvements in critical user performance metrics for ad rendering and display
  • Write, test, and deploy robust, efficient, and well-documented code in Java/Python, ensuring adherence to the highest coding and performance standards
  • Participate in code reviews, knowledge sharing sessions, and help implement technical standards and best practices within the team

Requirements:

  • 7+ years of hands-on experience in software engineering
  • Proficiency in programming
  • Excellent understanding of how complex IT systems work (from the hardware level, through software, to algorithmics)
  • Very good knowledge of fundamental Internet protocols and technologies (DNS, HTTP, cookies and others)
  • Good knowledge of basic methods of creating concurrent programs and distributed systems (from thread level to geo-distributed clusters level)
  • Practical ability to observe, monitor and analyse the operation of production systems (and draw valuable conclusions from it)
  • The ability to critically analyze the solutions created in terms of performance (from estimating the theoretical performance of the designed systems to detecting and removing actual performance problems in production)
  • General knowledge of issues (typical problems and methods of solving them) in the areas of 'high scalability' and 'high availability'
  • C1 level in English and Polish

Nice to have:

  • Experience in the AdTech/Real Time Bidding space
  • Experience contributing to Real User Monitoring (RUM) systems
What we offer:
  • Projects focused on extreme performance and high code quality – solid code reviews are our standard
  • Collaboration within an interdisciplinary, self-sufficient team (including DevOps, database experts, backend developers, product designers, and QA engineers)
  • Hardware and software tailored to your preferences (e.g., MacBook, AI tool licenses)
  • Flexible working conditions – no core hours, fully remote cooperation possible

Additional Information:

Job Posted:
December 27, 2025

Work Type:
Remote work
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