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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Data Scientist (Sota Team) - **Company:** SEMrush - **Location:** Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Algorithm Design, Big Data, Software Quality, Python (Programming Language), PostgreSQL, Machine Learning, Natural Language Processing, Named Entity Recognition, Standard Sql, Search Technologies, SQL Databases, Google Cloud, Large Language Models, Gitlab-ci, Low Latency, Production Code, Vertica, Docker, Web Api - **Published:** June 29, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=58cf576aa0d2ed25 ## About the Role Do you have experience in SQL?, Do you have a Master's degree?, Move together. Raise the bar. Learn fast-grow faster. That's the default. And here's what else is needed to succeed in this role, * 5+ years of experience as a Data Scientist, Machine Learning Engineer, or in a similar role * Strong knowledge of machine learning, statistics, and classical NLP techniques * Strong Python and SQL skills * Practical experience working with LLMs or LLM-based systems * Understanding of how to evaluate model quality using datasets, benchmarks, or experiments * Ability to write clean, maintainable, and reliable code * Ownership mindset and ability to work with ambiguous product problems Soft Skills: * You care about delivering working solutions, not just experiments * You balance execution speed with code quality, reliability, and maintainability * You communicate clearly and collaborate well across Data Science, Product, and Engineering, * Experience with RAG, AI agents, or agent-based systems * Experience deploying ML or LLM-based solutions in production * Experience with GCP, Vertex AI, or GitLab CI * Experience with asynchronous Python, high-throughput API calls, or large-scale data processing * Experience with monitoring, experiment tracking, or reproducible research practices ## Description * Build and improve LLM- and NLP-based systems used in AI Search optimization products * Design evaluation frameworks and benchmarks for LLM outputs, prompts, and model behavior * Work on brand extraction, domain mapping, entity extraction, and related algorithmic tasks * Optimize LLM pipelines for quality, cost, throughput, and reliability * Write clean, production-quality Python code * Collaborate with Product, Engineering, and other Data Scientists to turn product problems into working technical solutions Examples of our projects: * Brand Extraction and Domain Mapping - extracting brand names, mapping corresponding domains, and other relevant entities from LLM-generated responses * LLM quality evaluation and optimization - building benchmarks to evaluate prompt and model quality, while improving throughput, latency, and cost * Algorithm development - designing and improving algorithms for product aliases, brand hierarchies, and other domain-specific problems, * Python * Google Cloud Platform * ClickHouse, PostgreSQL * ClearML, Docker, LangFuse, DVC * LLM APIs: OpenAI, Google, Anthropic, Perplexity About the perks * Unlimited PTO * Hobby & team building budget allowance * Employee Support Program * Loss of family member financial aid * Employee Resource Groups ## Related Videos - [Web APIs you might not know about](https://www.wearedevelopers.com/videos/281-web-apis-you-might-not-know-about) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Project Fugu: Extending the web](https://www.wearedevelopers.com/videos/832-project-fugu-extending-the-web) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning) ## Related Articles - [Data Analyst Salary Germany](https://www.wearedevelopers.com/magazine/277-data-analyst-salary-germany) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Software Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/194-software-developer-salary-in-germany-2023)