Experienced AI/ML Researcher (m/f/n)

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 Experienced   AI   Researcher, you apply machine learning methods to real-world cybersecurity problems — preparing behavioral data,   building   and evaluating models, and guiding them toward production. Beyond that, you   maintain   and improve deployed models across their full lifecycle, from monitoring to continuous optimization.

About the Role

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Prepare and process behavioral data for training models that detect malicious activity.

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Build and evaluate prototypes, iterating on architectures and features until production-quality, on dedicated in-house GPU servers —   enough compute   to compete with the biggest players in the industry.

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Deploy models into production and integrate them with existing detection and incident-handling pipelines.

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Monitor,   maintain , and   optimize   deployed models across their full lifecycle — from drift detection to retraining and performance tuning.

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When opportunities arise, explore novel architectures beyond applying existing models.

Essential Requirements

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Practical understanding of modern   AI/ ML methods — knowing which models fit which problems, when to use simpler approaches versus novel architectures, and how to   optimize   them for production.

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Proficiency   in Python and its   AI/ ML ecosystem.

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Experience with   AI/ ML lifecycle tooling and infrastructure for production model serving and lifecycle management.

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Ability to work independently and take full ownership of model development from start to finish.

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

Desirable Requirements

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University degree in Machine Learning, Data Science, Mathematics, or   a related   technical field.

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Basic understanding of computer and network security.

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Experience with Big Data technologies and cloud platforms (AWS).

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 3000 EUR

• 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 #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