Machine Learning Engineer (AI)

TL;DR

Machine Learning Engineer (AI/ML): Developing state-of-the-art web analysis and AI-powered capabilities to enhance user security and autofill experiences with an accent on web understanding and credential protection. Focus on deploying LLM-based applications, RAG, agentic systems, and optimizing data pipelines for real-time threat detection.

Location: Hybrid in Paris, France (3 office days per week)

Company

hirify.global is a leading credential security company providing password management and zero-knowledge security to millions of users and thousands of brands worldwide.

What you will do

• Conduct R&D on web page understanding for credential protection and threat detection.
• Train models, experiment with hypotheses, and analyze results using large datasets.
• Deploy and improve AI features, including LLM applications, RAG, and tool-using agents.
• Maintain and optimize data pipelines and model training integrations into the web extension.
• Collaborate with cross-functional teams of engineers, PMs, and designers.
• Act as an AI pioneer by integrating GenAI tools into engineering workflows.

Requirements

• Master/Engineer degree in ML/AI or Computer Science.
• 4+ years of professional experience in a product-led company.
• 2+ years of experience in R&D with practical ML applications.
• Proficiency in Python, ML frameworks (Scikit-learn, XGBoost), and deep learning frameworks (PyTorch, Hugging Face).
• Fluent in English.
• Must be based in Paris, France for a hybrid work model.

Nice to have

• Experience integrating foundation models, LLM-powered features, RAG, or AI agents into production.
• Knowledge of JavaScript, Web technologies, and embedding ML in web applications.
• Experience with cloud platforms such as Azure, AWS, or GCP.
• Interest in data privacy and online security.

Culture & Benefits

• Hybrid culture combining in-person collaboration (Mon, Tue, Thu) with flexible remote days.
• Well-being days (4 extra days per year) and mental health services through Spring Health.
• Equal Parental leave (up to 20 weeks fully paid).
• Internal mentorship program to support professional growth.
• Flexible working hours and company-sponsored office lunches.