CSIRT Senior Analyst
Saint-Ouen, France
Real-world Tech at scale
We are a team of 2,200 technology experts designing the software, products, cloud, and AI that power L'Oréal in 150 countries. We build tools that help our internal teams work smarter, while shaping immersive digital experiences for millions of consumers. With Gen-AI unlocking new possibilities, we combine advanced science with cutting-edge technology to deliver beauty that is personalized, inclusive, and responsible.
This is engineering excellence, delivered at global scale
Skills you'll sharpen here
- AI fluency
- Cloud
- Tech product development
- Cybersecurity
- Integration
- Data fluency
As well as these, L'Oréal employees build the transversal soft skills needed to partner across the business.
Why build here?
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We build API-first and Cloud-first, using the best stacks from Google, Microsoft, and Meta.
You get the budget and data to build things that actually ship - like L'Oréal GPT or our connected beauty devices-and push them live across 150 countries. We move fast, but we don't do it blindly.
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We also expect your career to keep moving.
People don’t get stuck in one lane here. With over 1,600 internal moves a year and full access to our Tech & Data University, you are encouraged to switch teams, learn new stacks, and grow. Finally, how you build matters. You will be expected to write code that is accessible to everyone, and design architecture that keeps our servers’ carbon footprint low.
CSIRT Senior Analyst
Saint-Ouen, Île-de-France Region, France
Your Future Team
The Cyber Security Incident Response Team (CSIRT), currently composed of 12 analysts operating in an international environment, is looking for its future Senior Analyst!
As part of the Cyber Defense Center department, the CSIRT works in close collaboration with the SOC, VOC, AppSec, and Offensive security Teams.
About the Role: This position is open to candidates with proven experience in managing cybersecurity incidents and alerts. The operational supervision of cybersecurity solutions also plays a key role in the team's daily activities.
What a day in the life in the team looks like:
In this strategic role, your success will be built on:
- Management of Level 3 incidents escalated by MSSPs
- Technical Lead for RUN operations on one or several security projects/tools
- Technical Subject Matter Expert (SME) for EDR services
- RUN Referent for the continuous improvement of "Detection & Response" activities
- Supporting the development of existing service lines (EDR, Threat Hunting, Purple Team)
- Contributing to the development of the Detection and Response strategy
What You'll Need To Succeed:
First and foremost, we love people that are curious, collaborative, eager to have an impact, proactive and who value innovation, autonomy, and team spirit.
Secondly, in this specific position, it will be important for you to have:
- Proven experience in security incident analysis (conducting in-depth security investigations across workstation, server, and corporate directory environments, both on-premises and in the cloud)
- Autonomous, rigorous, with strong writing and communication skills.
Additional Skills That Will Set You Apart:
- Experience in creating detection rules and automation
- Knowledge of Cloud technologies and infrastructure security
- Proficiency in one or more scripting languages.
- Reference number: 257013
- Location: Saint-Ouen, France
- Date posted: 11/09/2026
- Employment type: Full-time
- Professional field: Tech & Data
- Type of contract: Permanent
- Cybersecurity
AI Charter: our pact
Why a Pact? At L’Oréal, innovation has been in our DNA for over 115 years. As we invent the future of beauty, we see Artificial Intelligence as a powerful co-pilot, with the firm belief that technology must always serve people. This pact is our commitment to you: we want to be transparent about how we use AI during the recruitment journey, and we invite you to use it in a way that showcases your unique talents. Above all, we believe in a journey that is ethical, transparent, and human.
View our AI Charter (opens in new window)
What our people say
As an engineer passionate about new technologies, what drives me is democratising AI and tech. I'm committed to making them truly accessible and bringing real value to employees across all our diverse businesses.
Lina, AI Product Lead
What we bring to the table
Please note: The exact benefits can vary depending on your country.
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A Competitive Salary to Secure Your Talent
Our Share & Care commitment ensures you receive a competitive monthly salary that stands out locally, recognizing your contribution to our success.
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Your Health & Well-being First
You'll have access to medical coverage and a range of wellness resources, including mental health support, to ensure you feel your best.
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Unlock Your Potential
From day one, you get full access to our global learning platform with over 10,000 courses to build the skills for your future career.
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Flexibility for a Balanced Life
Find your perfect balance. We offer a hybrid work model and flexible arrangements, so you can manage your professional and personal life effectively throughout your career.
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The Ultimate L'Oréal Experience
Get generous discounts on our entire portfolio of iconic brands and be the first to try our latest product innovations.
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Thriving Community
Enjoy a dynamic work environment designed for connection and growth. From modern, collaborative offices to exciting social events, you'll be part of an ultra-connected network.
Think you’d be a great fit? We’d love to see you apply.
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