Data Scientist | Senior | Threat Intelligence team

Full Time

hybrid

Threat Intelligence

Warsaw

At Nord Security, we’re creating a safer cyber future.

We help people and businesses take back control of their online security, privacy, and data. From VPNs to password managers, threat intelligence to eSIMs for travel—our teams turn complex problems into solutions trusted by millions worldwide.

Life is online. In this role, you’ll help people own it.

Our Threat Intelligence team is dedicated to providing accurate and timely information on potential threats to our products. Our team of skilled professionals from various fields, including Data Science, Malware Research, Development, and Privacy, are focused on achieving a common goal by utilizing feeds, heuristics, algorithms, and machine learning.

Our Threat Intelligence team is dedicated to providing accurate and timely information on potential threats to our products. Our team of skilled professionals from various fields, including Data Science, Malware Research, Development, and Privacy, are focused on achieving a common goal by utilizing feeds, heuristics, algorithms, and machine learning.

Main Responsibilities

Design solutions to problems while researching, debugging, and analyzing data using different data sources;
Create scalable & reliable code, as well as write documentation for the parts that you’ve contributed to or explored;
Research, develop & deliver data science solutions to production;
Develops custom ML metrics that would help to monitor model performance;
Analyze validation/testing results, explain them, and improve model design accordingly;
Plan the deliverables with the team members;
Code reviews;
Constant communication about the progress;
Mentoring & knowledge sharing;
Suggest improvements to current solutions.

Core Requirements

Proven experience in data science and/or mathematical modeling;
Solid knowledge of statistics (e.g., Monte Carlo, hypothesis testing, bootstrap, Bayesian inference);
In-depth knowledge and hands-on experience in machine learning algorithms: linear regression, random forest, gradient boosted trees, neural networks, k-means, LLMs, etc.;
Proficiency in Python and hands-on experience with the PyData stack (e.g., Pandas, Numpy, matplotlib) for analytics/machine learning;
Excellent problem-solving skills (researching, debugging, instrumentation);
Ability to break down and prioritize work, make informed decisions about which tools and algorithms to use for specific problems;
Team-driven mentality and ability to collaborate with other colleagues, as well as ownership;
Willingness to explore, grow and mentor others while keeping up with the latest innovations in data science.

Salary Range

Monthly gross salary from 17600 to 28200 PLN.

Perks we offer

Our global mission fuels our drive. But when you need that extra push - here’s a list of things to look forward to.

Apply for this job

Threat Intelligence

Warsaw

Full name

Phone number

Link to profile

Your city

Resume (optional)

Nord Security is committed to building an inclusive workplace with a diversity of backgrounds. We welcome applications from people of all ages, gender identities, sexual orientations, racial identities, ethnicities, religious beliefs, and disability statuses. To reduce the chance of unconscious bias, you may submit your CV without a photograph or other redundant information like age or marital status.

We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we’ll let you know in advance.

By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. .

By filling in this form you confirm that you have read and understood the Privacy Notice for Recruitment Candidates.

I consent that Nord Security can contact me about future job opportunities for up to 3 years.

Our values

Our values are rooted in the actions of our people. They describe how we solve problems, make decisions, and ultimately - reach our goals as a team.