AI/ML Researcher (m/f/n) at ESET · Bratislava

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 an AI Researcher, you explore, evaluate, and apply AI/ML methods to real-world cybersecurity problems — running experiments, building prototypes, and working with behavioral data. You work alongside senior researchers, gradually building independence on a clear path to becoming an experienced researcher. About the Role

• Explore and evaluate AI/ML methods for real-world cybersecurity problems — running experiments, analyzing results, and comparing approaches.

• Build and test prototypes using behavioral data, identifying what brings real value in cybersecurity.

• Apply existing models and approaches to threat detection, learning which methods work for which problems.

• Work alongside senior researchers who guide your work while you gradually build independence and ownership.

• Research novel architectures and approaches specific to the cybersecurity domain — contributing to work that pushes beyond applying existing models. Essential Requirements

• University degree (Master's or higher) in Mathematics, Statistics, Machine Learning, Data Science, or a related technical field.

• Practical experience with machine learning — internships, professional work, academic research, or personal projects.

• Proficiency in Python at a prototype level — able to build and test AI/ML models.

• Foundational understanding of machine learning methods — knowing which models fit which problems and how to evaluate approaches.

• Strong drive for continuous learning and staying current with state-of-the-art research. Desirable Requirements

• Basic understanding of computer and network security.

• Experience with Big Data technologies.

• Experience with cloud platforms (AWS, Azure).

Technologies

Python, Scikit-learn, PyTorch, TensorFlow, (My)SQL, MLflow, Git, JIRA, Confluence, Docker, Kubernetes, Jenkins CompensationBasic wage component (brutto): from 2400 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 10% of the basic salary paid for the evaluation period (usually 6 months).

#LI-JK1 #LI-Hybrid #mid-senior

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

Time type Full time