wo vacatures in Hillegom

About the Job

The Position: Data Scientist

Position: Full-time | 40 hours per week

Location: Amsterdam, Netherlands | Work From Home (2-3 days per week in the office)

Salary Range: 75.000,- to 95.000,- annually

As a Data Scientist at ThreatFabric, you will play a critical role in developing our next-generation Behavior Biometrics AI system to strengthen our fraud detection platform. You will work with real-world data from major financial institutions, enabling you to experiment, prototype, and deliver high-impact AI solutions for mobile and web environments.

You will work closely with engineers, pilot customers, and an experienced professor in the field to design, experiment, build, and deploy models that enhance our overall risk scoring capabilities.

Your key responsibilities will include:

• Designing and developing components of the Behavior Biometrics solution.
• Researching and experimenting with AI technologies, algorithms, and methodologies.
• Building prototypes in collaboration with engineering teams.
• Developing, training, and deploying models into production environments.
• Validating models with pilot customers to ensure real-world efficiency and accuracy.
• Collaborating with cross-functional teams to ensure effective integration and adoption.
• Staying up to date with developments in AI, machine learning, and behavioral biometrics.
• Documenting model behavior, decisions, and interaction within the broader fraud detection ecosystem.
• Supporting continuous improvement by identifying areas to enhance model performance, reliability, and accuracy.

What We Offer

• A 12-month employment contract with the intention to extend. Subject to mutual satisfaction, this may lead to a permanent position.
• A competitive salary that reflects your skills and experience with a salary range between 75.000,- to 95.000,- annually.
• 25 holidays per year.
• 8% holiday allowance (included in annual salary).
• A Pension Scheme
• A stimulating and supportive work environment that encourages growth and development.
• The opportunity to make a meaningful impact in a rapidly growing tech company.
• Flexible Remote / Hybrid work-from-home options to promote work-life balance.
• Flexible working hours.
• Active ThreatFabric events and FitFabric bootcamps.
• Active knowledge-sharing huddles.

Technical Skills

• Proficiency with PySpark (MUST) .
• Strong experience with Python and libraries such as Pandas, Polars, scikit-learn, Numpy, TensorFlow, Keras and PyTorch.
• Experience working with Databricks, Azure, and AWS.
• Bachelor's or Master's degree in Computer Science, Data Science, AI, or a related field.
• Experience developing and deploying machine learning models in production environments.
• Experience working with real-world data in complex, data-driven environments.
• Ability to work autonomously with minimal guidance.
• Start-up or entrepreneurial experience is preferred.

Creativity and Innovation

• Generates and implements innovative ideas in AI and machine learning.
• Experiments pragmatically with new techniques and technologies.

Problem-Solving

• Analyzes complex behavioral and fraud-related data challenges.
• Designs scalable and practical solutions aligned with business needs.
• Uses a structured, pragmatic approach to overcome technical obstacles.

Communication and Interpersonal Skills

• Communicates technical findings clearly to both technical and non-technical stakeholders.
• Acts as a trusted advisor for engineers, product owners, and management.
• Builds strong relationships across teams and contributes to collaborative development.

Continuous Improvement

• Continuously explores opportunities to enhance model performance.
• Shares knowledge through documentation, mentoring, and internal knowledge sessions.
• Promotes AI best practices and technical excellence.

Information Security, Business Continuity & Privacy

• Adheres to company security, continuity, and privacy standards.
• Acts as a role model in secure design and data compliance.
• Proactively reports and supports resolution of security incidents.

Why us?

About ThreatFabric

At ThreatFabric, we're not just shaping the future of cybersecurity - we're defining it. With our headquartered in the vibrant city of Amsterdam, ThreatFabric stands at the forefront of combating online fraud, mobile malware, and threat intelligence.

Costly online scams, fraud and malware attacks are rampant. Victims' life savings are stolen, but so are their confidence and trust. On top of this, financials' brand and reputation are damaged. Many lack online visibility to trigger prompt reaction, and the industry faces regulatory reimbursement pressure.

This is why ThreatFabric provides web and mobile security: scam, fraud and malware detection and prevention, and threat intelligence to be proactive. We help the biggest financial brands protect their customers and their reputation in a world where attacks escalate, and trust erodes.

Join Our Dynamic Team

Ready to dive into the heart of innovation? Our team is a melting pot of talent, passion, and expertise from all corners of the globe. Behind ThreatFabric's success lies a diverse ensemble of technical experts, data scientists, and thought leaders united by a passion for innovation. With a global perspective and a collaborative spirit, our team leverages innovative technology and thousands of data points to deliver security solutions.

As a scale-up, we embrace a scale-up mentality where flexibility, adaptability, and a dynamic approach are essential.

Our Core Values

At ThreatFabric, our culture is defined by three guiding principles:

• One Team : Collaboration fuels our success as we work together to tackle complex challenges.
• Continuous Excellence : We're committed to pushing boundaries and exceeding expectations in everything we do.
• Customers at the Heart : Our customers are not just clients - they're partners. Their success is our priority.

Interested?

Are you as excited about this opportunity as we are? We can't wait to hear from you! Apply through the Personio link, and let's make innovation happen together! We aim to fill this vacancy in Q1 2026

So, you've hit send - what happens now? First, we'll do a screening to ensure we're a good match. If all goes well, you'll be invited for an initial chat with us. Then, there's a second interview, and we may include an assessment to better understand your skills. Ready to take the plunge?

Please note : Pre-employment screening is part of our selection process. We do not accept unsolicited resumes from recruiters or employment agencies.

About us

ThreatFabric is fusing 15 years of leading threat research and fraud experience with next-gen technology to detect the latest fraud threats. No matter the regulations, and no matter how relentless the criminals, we ensure the best channel fraud prevention across the globe. Our customers are prepared for any eventuality, earning their customers trust worldwide.

IT Traineeship March 2026

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