Summary You will become part of the Incident Creator and AI Research team within the Technology Division in Bratislava. The team focuses on detecting malicious activity, combining correlation rules with machine learning models to evaluate potential security incidents from terabytes of behavioral data. Beyond detection, the team builds incident-handling tooling for security operators and develops automation, including potential AI SOC. Job description As a Senior Machine AI Researcher, you take part in researching, experimenting, and creating the best models to evaluate potential incidents. Beyond that, you look for applications of AI/ML approaches across the entire incident lifecycle, whether signal filtering, incident summarization, or malicious activity mitigation. About the Role Explore new AI/ML opportunities, leveraging your accumulated expertise to evaluate state-of-the-art research and decide what's worth pursuing in our domain. Design and run experiments on terabytes of behavioral data (on-prem and cloud), validating ideas before production on dedicated in-house GPU servers — enough compute to compete with the biggest players in the industry. Challenge existing solutions and decisions — driving critical discussion in the team. Collaborate with data collection, security operations, and software development — identifying promising opportunities to apply AI/ML where it advances real business goals. Mentor other researchers and steer the long-term research direction, supporting technical decisions that push the boundaries of AI/ML in cybersecurity. Essential Requirements Deep understanding of the mathematical and statistical principles behind modern ML/AI methods — ability to critically evaluate and adapt models. Experience with modern neural network architectures, especially transformers and their variants. Strong drive for continuous learning and staying current with state-of-the-art research. Ability to work independently across the full research lifecycle — from literature review to experimentation to production-ready solutions. Desirable Requirements University degree in Machine Learning, Data Science, Mathematics, or a related technical field. Basic understanding of computer and network security. Experience with cloud platforms — AWS preferred. Technologies Python, Scikit-learn, PyTorch, TensorFlow, Polars, Hadoop, Spark, Hive, Impala, Iceberg, LanceDB, (My)SQL, Kafka, MLflow, Kubeflow, Argo, Git, JIRA, Confluence, Docker, Kubernetes, Jenkins, AWS. Basic wage component (brutto): from 4500 EUR/m. (brutto) * The final basic wage component can be increased accordingly to individual skills and experience of the selected candidate. * Performance bonus 2 times per year up to 15 - 20% of the basic salary paid for the evaluation period(usually 6 months). #LI-JK1 #senior #medior #LI-Hybrid Benefits Health & well-being BenefitPlus Healthcare (check-ups/annual programs) Multisport card Travel card "električenka" Supplementary pension saving Sick days Family Marriage allowance Childbirth allowance Parental contribution ESET family events (Family day, St.Nicholas) Office Refreshments in the office (fruits, coffee, soft drinks) Let´s get together breakfast Activity room, quiet room ESET events (Žranica, Christmas party..), teambuildings Other Loyalty allowance Loyalty extra days off Loyalty cake Loyalty glass award Refer a friend Christmas presents Discounts from external providers Primary location Bratislava Additional locations Brno, Prague Time type Full time Join ESET Talent Community and we will contact you. This is an option for candidates who haven't found any interesting job opening and would like to send us their CV. ESET® provides cutting-edge digital security to prevent attacks before they happen. By combining the power of AI and human expertise, ESET stays ahead of known and emerging cyberthreats — securing businesses, critical infrastructure, and individuals. Whether it’s endpoint, cloud or mobile protection, our AI-native, cloud-first solutions and services remain highly effective and easy to use. Driven by science, ESET technology includes robust detection and response, ultra-secure encryption, and multifactor authentication. With 24/7 real-time defense and strong local support, we keep users safe and businesses running without interruption. An ever-evolving digital landscape demands a progressive, evidence-based approach to security. ESET is committed to world-class scientific research and powerful threat intelligence, backed by R&D centers and a strong global partner network. ESET's purpose is not only to provides cutting-edge digital security, but also to actively contribute to a more innovative and responsible society in terms of education, science and research. At ESET, diversity, equity, and inclusion (DEI) are integral to our corporate culture. We believe in creating a respectful environment, where everyone feels valued and respected, welcoming applications from individuals of all backgrounds, including race, gender, age, religion, disability, and sexual orientation. Learn more about ESET.

Senior AI/Machine Learning Researcher (m/f/n).

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