Senior Software Engineer

Back to jobs Senior Software Engineer Warsaw, Masovian Voivodeship, Poland Apply Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the 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. You Will: We're looking for a Senior Software Engineer to help us design, build, and optimize high-performance backend systems that power real-time bidding (RTB) and machine learning at internet scale. You’ll work on software that handles billions of daily transactions with strict latency and reliability constraints - all in a distributed, low-latency environment. Desired Experience: Expertise in designing and implementing complex IT systems. Ability to develop user-friendly, versatile tools. Proficiency in at least one programming language, such as Python, C++, Java, or Scala, along with expertise in Linux. Strong skills in evaluating and optimizing system performance, from initial design through to production troubleshooting. Deep understanding of algorithms and data structures. Initiative and creativity to improve existing solutions. Ability to work effectively both within and across teams. Additional Advantages: Previous experience in the field of Machine Learning is not required, but would be an asset. Solid foundation in mathematics. Experience with GPU programming and Machine Learning frameworks such as Torch, PyTorch, or TensorFlow. Proven experience with distributed systems. Familiarity with Big Data technologies such as Hadoop, Kafka, Storm, Spark, or Flink. Hands-on experience with Google Cloud Platform (GCP) or similar cloud providers. In Return, We Offer: A highly competitive salary. The opportunity to work with a team of enthusiasts experienced in Machine Learning, Big Data, and distributed systems, who are eager to share their knowledge and skills. Flexible working hours, with the possibility of remote work or working from our office in Warsaw. Access to the latest technologies, with the opportunity to apply them in a large-scale and fast-paced project. An opportunity to apply your expertise in optimizing algorithms that support hundreds of millions of internet users and billions of ad views per month within the RTB model. The ability to see the immediate impact of your work on the company's business outcomes. The possibility of publishing your results. Daily Responsibilities: Developing and maintaining the ML training platform and the bidding infrastructure that evaluates ML models in the production environment. Identifying performance bottlenecks and optimizing critical, low-level parts of the system. Ensuring the reliability and scalability of implementations, and creating performance and correctness tests for new system components. Testing and benchmarking open-source Big Data and ML technologies to assess their suitability for the production environment. Apply now! You don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it. Apply for this job * indicates a required field First Name* Last Name* Email* Phone Country Phone Resume/CV* Attach Attach Dropbox Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile Do you have the right to work in the location in which this role is based?* Select... Country* Select... Current Company* Current Job Title * Data Privacy Notice * Select... Dear Candidate, When you apply to a job on this site, the personal data contained in your application will be processed by the company of the RTB House corporate group for which a given recruitment process is conducted. For details, please click on the relevant link below based on the localization of the entity publishing the job post. List of the entities: Poland Czech Republic, Romania, Bulgaria, Slovakia, Hungary Ukraine APAC: Australia, Singapore, Vietnam, Thailand, China, Hong Kong, Indonesia, Philippines Nordics: Sweden, Norway, Finland, Denmark UK Germany France Brazil Benelux Turkey Japan USA United Arab Emirates, MEA, Israel Cyprus Argentina, Mexico Spain, Portugal Italy South Korea Taiwan Saudi Arabia India By clicking the “Acknowledged” button you confirm that you have read our Recruitment Privacy Notice. Submit application