We're a team of 700+ professionals who develop cutting-edge web data gathering solutions for thousands of the world's best-known businesses, including Fortune 500 companies.   The team waiting for you: As our Data & AI Engineer, you'll be diving into the technical challenges of building internal AI-powered systems to help us make better-informed business decisions at Oxylabs.io. This is an excellent opportunity for an analytical thinker who enjoys hands-on technical work, has a passion for AI technologies, is eager to learn more, and wants to make a meaningful impact. You'll be developing and deploying AI-powered tools leveraging the latest AI models (including Anthropic's Claude, Google's Gemini, OpenAI's GPT) that our internal teams will use daily. IN THIS ROLE, YOU’LL: Build AI applications using Python, LLMs & RAG; Conduct research with new LLM technologies and frameworks (with a focus on AI coding assistants) to keep our AI capabilities at the cutting edge and share your findings with others; Collaborate with cross-functional teams to identify AI-driven opportunities and integrate various solutions into their operations; Fine-tune and optimize prompt strategies to enhance accuracy, reliability, and efficiency of LLM outputs; Define AI evaluation metrics and benchmarking frameworks and implement monitoring systems to track LLM performance and costs Promote the adoption and understanding of AI within Oxylabs. YOUR SKILLS & EXPERIENCE: * Proficiency in at least one programming language, ideally Python; * Hands-on experience with agentic development patterns and best practices (tool use, planning loops, evaluation); * Experience with LLMs (e.g., Anthropic/OpenAI/Gemini APIs) and AI application development; * Experience with cloud infrastructure (ideally Google Cloud or AWS); * Knowledge of best DataOps practices and tools including version control systems (e.g., Git), Terraform, Docker, and CI/CD; * You're excellent at communicating in both written and spoken Lithuanian and English. NICE TO HAVE: Familiarity with agent frameworks (e.g., LangChain, Claude Agent SDK, Google ADK) or workflow automation tools (e.g., n8n.io); Proficiency in deploying and optimizing open-source AI models (e.g., Llama, Qwen); Background in Machine Learning beyond LLMs (e.g., computer vision, traditional ML). TECH STACK: Google Cloud Platform (Pub/Sub, GCS, BQ) for ingestion, storage and warehousing; dbt and SQL for data modelling;  PowerBI and Superset for data visualisation. Python for automation; Airflow for orchestration; Kubernetes/Argo CD for deployment; SALARY & BENEFITS: Gross salary: 3400-5600 EUR/month. Keep in mind that we are open to discuss a different salary based on your skills and competencies. Growth & Learning: 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing. Health & Well-being: Private health insurance, psychotherapy, on-site well-being consultants, 24/7 gym access, and a wellness app. Celebration & Community: Team events, an overseas workation, quarterly team-building budgets, and plenty of ways to mark milestones together. Plus bonus vacation days, paid life-moment days off, barista coffee, and all the tools you need. See the full list of benefits here: https://career.oxylabs.io/blog/our-work-benefits/. Up for the challenge? Let’s talk!