About usOwkin is an AI company on a mission to solve the complexity of biology. It is building the first Biology Super Intelligence (BASI) by combining powerful biological large language models, multimodal patient data, and agentic software. At the heart of this system is Owkin K, an AI copilot and its new LLM fine-tuned on biology called Owkin Zero, used by researchers, clinicians, and drug developers to better understand biology, validate scientific hypotheses, and deliver better diagnostics and therapies faster.About the roleAs a Senior Data Backend Engineer, you will build the world leading Agentic AI product for biomedical researchers by combining robust engineering practices with cutting-edge AI technologies. You'll be working on a real-time system that integrates LLMs, tool-calling, to explore public biology knowledge, Owkin proprietary data and client data.More specifically, the role is focused on designing and optimising data workflows (storage, querying, analytics, etc) for agentic capabilities.What you will doCollaborate within a multi-disciplinary team of product managers, designers, software engineers, data engineers and machine learning and biomedical scientists.Design, build, and maintain scalable, reliable data-intensive AI systems.Drive technical decisions and provide context-aware solutions for AI systems in biological research.Experiment with cutting-edge industry solutions—orchestration patterns, analytical DB (DuckDB, etc), distributed computing (AWS Athena, Trino, etc), integration with data platforms (Snowflake, Databricks, etc).Lead core stack component development focusing on sustainability, scalability, security, reliability, and performance.Foster team growth by sharing expertise and mentoring colleagues through code reviews, technical discussions, and knowledge sharing.About youYou’re driven by impact — excited to empower biomedical researchers with intuitive, AI-driven tools that unlock scientific discovery.Strong collaborative skills with an open, pragmatic mindset; you thrive in multidisciplinary environments that involve people with diverse backgrounds.Clear and effective communicator who can translate technical complexity into actionable decisions for the team.Proven track record leading software development at scale in production environments.Deep understanding of system architecture, infrastructure design, and building resilient distributed systems.Extensive experience with production environments: continuous deployment, high availability, observability, and security.Curiosity and ideally hands-on experience with AI systems — from integrating LLMs to managing their connection to data.Passion for user experience and product thinking: you consider not only the system’s internals but how the end user interacts with and benefits from your work.Proficiency with Claude Code and other AI software engineering tools.Fluent English, both written and spoken.Stack: Python, DuckDB, Kubernetes, AWS.What we offerFlexible work organizationFriendly and informal working environmentOpportunity to work with an international team with high technical and scientific backgroundsRecruitment Process & SecurityPlease complete the form and submit your CV.Owkin is an Equal Opportunity Employer.Owkin is vulnerable to recruitment phishing scams; legitimate processes include communication through recognized professional networks such as LinkedIn and via an official @owkin.com email address, over the phone, or through their applicant tracking system (Greenhouse). Interviews may be conducted over the phone, in person, or via Google Meets (not Signal, Telegram, or Messenger).If you think you have been a victim of fraud, follow the listed checks and contact details, including notifying hiring@owkin.com and the referenced authorities.