Data Scientist (AI Security)

Thales is a global technology leader trusted by governments institutions and enterprises to tackle their most demanding challenges. From quantum applications and artificial intelligence to cybersecurity and 6G innovation our solutions empower critical decisions rooted in human intelligence. Operating at the forefront of aerospace and space cybersecurity and digital identity were driven by a mission to build a future we can all trust.

Data Scientist (AI Security)

Thales - Imperva is seeking a Data Scientist to join our AI Protection initiative in India. Our team focuses on securing the next generation of AIpowered applications and generative AI platforms. We are building and advancing our AI Firewall (AIFW) to help organizations detect and mitigate emerging threats targeting Large Language Model (LLM) systems and AI agents.

This role focuses on datacentric AI: designing highquality datasets and evaluation frameworks that directly improve detection performance. You will work closely with Security Researchers who discover new attack techniques and with Data Scientists and ML engineers who develop detection models. Your work will transform emerging AI threats into structured datasets and evaluation benchmarks that strengthen our ability to detect attacks such as prompt injection jailbreaks model manipulation and sensitive data exfiltration.

What will you do

• Build and maintain datasets used to train and evaluate AI security detection models.

• Collaborate with Security Researchers to convert newly discovered attack techniques jailbreak strategies and adversarial prompts into structured datasets and labeling guidelines.

• Design scalable workflows for collecting generating curating and maintaining highquality datasets.

• Implement dataset quality processes such as filtering deduplication sampling and continuous updates as the threat landscape evolves.

• Define evaluation datasets and benchmarks to measure detection performance and track model improvements over time.

• Generate synthetic and adversarial prompts to expand coverage of emerging attack techniques.

• Work closely with engineers and data scientists to integrate datasets and evaluation workflows into model experimentation training and production pipelines.

• Analyze detection performance and recommend improvements to datasets labeling strategies and model training approaches.

Requirements

• 47 years of industry experience as a Data Scientist working on machine learning or datadriven systems.

• Background in application security adversarial machine learning or AI safety.

• Strong Python skills and experience working with large datasets using tools such as Pandas SQL Spark or similar platforms.

• Experience building datasets and evaluation pipelines for machine learning models.

• Familiarity with NLP LLM systems or generative AI technologies.

• Ability to collaborate effectively with researchers engineers and product teams and communicate technical insights clearly.

Preferred Qualifications

• Experience creating synthetic adversarial or securityfocused datasets.

• Experience with modern ML/LLM frameworks such as Hugging Face PyTorch TensorFlow or Scikitlearn.

• Experience with cloud platforms such as AWS Azure or GCP.

• Familiarity with Kubernetes data pipelines or production ML infrastructure.

• Experience with ML lifecycle practices including CI/CD experimentation and model monitoring.

Education

• Ph.D. Computer Science Engineering Mathematics or a related technical field is preferred but not required if you have strong relevant professional experience.

At Thales were committed to fostering a workplace where respect trust collaboration and passion drive everything we do. Here youll feel empowered to bring your best self thrive in a supportive culture and love the work you do. Join us and be part of a team reimagining technology to create solutions that truly make a difference for a safer greener and more inclusive world.