At a Glance
- Tasks: Join our Offensive Security team to hunt vulnerabilities and enhance client security.
- Company: Mistral AI, a dynamic team passionate about transforming society with AI.
- Benefits: Competitive salary, equity, health insurance, and generous parental leave.
- Other info: Remote work available, with opportunities for in-person collaboration in Europe.
- Why this job: Make a real impact in cybersecurity while working with cutting-edge AI technology.
- Qualifications: Experience in web/app security, strong problem-solving skills, and client-facing abilities.
The predicted salary is between 70000 - 90000 £ per year.
About Mistral
At Mistral AI we believe in the power of AI to simplify tasks, save time and enhance learning and creativity. Our technology integrates seamlessly into daily work life. We democratize AI through high-performance, open-source, cutting-edge models, products and solutions. Our comprehensive platform meets enterprise needs, whether on-premises or in the cloud. We are a dynamic, collaborative team passionate about AI and its potential to transform society, with teams distributed across France, USA, UK, Germany and Singapore.
Role Summary
We are seeking a hands‑on Penetration Tester to join our Offensive Security team. You will run our evolving offensive solution on real client engagements while hunting vulnerabilities in Mistral’s own systems and in the wild. Your work will affect both client security posture and our own defensive capabilities, and help shape how AI transforms penetration testing.
What You Will Do
- Client Engagements
- Run our offensive security solution on client engagements: scoping, executing tooling and delivering results.
- Triage output and kill false positives to ensure high‑quality, actionable findings.
- Advise clients through deployment and remediation as a trusted security partner.
- Travel to client premises and switch between engagements in a classic pentest consulting cadence.
- Internal Dogfooding
- Pentest Mistral’s own systems, finding vulnerabilities before the solution matures.
- Hunt for vulnerabilities internally and on open‑source or in‑the‑wild targets between client engagements.
- Transfer knowledge and findings to the forming internal security team.
- Act as Mistral’s own first customer for our cyber harnesses.
- Guiding the Harness
- Use real offensive expertise to steer the cyber harness: identify vulnerabilities it should catch.
- Validate and triage the harness output, ensuring it meets the high standards of human pentesters.
- Benchmark human vs. agent performance, helping close the gap between automated and manual testing.
- Contribute to the development of AI‑powered offensive security capabilities.
About You
- Current specialty in web / app‑sec + source‑code review; high‑value skills in internal / Active Directory, cloud (AWS/GCP/Azure), CI/CD & supply‑chain.
- Senior enough to run an engagement solo from scoping to delivery.
- Uses AI in your workflow with a nuanced view of its capabilities and limitations.
- Comfortable client‑facing, mobile, and switching between engagements.
- Proven track record delivering high‑quality penetration testing results.
- Strong problem‑solving abilities and attention to detail in vulnerability identification.
Additional Preferred Skills
- Build your own offensive tooling (builder mindset that scales impact).
- Published CVEs / GHSAs or a strong bug‑bounty track record.
- Conference talks, CTF achievements, or other public recognition in the security community.
- Strong code review skills for multiple programming languages.
- Experience with AI/ML systems and their unique security challenges.
- Contributions to open‑source security tools or research.
Location & Remote
This role is open to remote candidates in Europe. Ideally based in one of our European offices (Paris, France or London, UK). We encourage in‑person collaboration at least three days per month. Remote candidates will be asked to visit the local office for the first week of onboarding and then at least three days per month.
What We Offer
- Competitive salary and equity (stock options)
- Health insurance
- Transportation allowance
- Sport allowance
- Meal vouchers
- Private pension plan
- Generous parental leave policy
- Visa sponsorship
By applying you agree to our Applicant Privacy Policy.
Pentester, Offensive Forward Deployment Engineer in London employer: mistral
At Mistral AI, we pride ourselves on being an exceptional employer that fosters a dynamic and collaborative work culture, particularly for our Offensive Security team. With a focus on employee growth, we offer competitive salaries, equity options, and comprehensive benefits including health insurance and generous parental leave. Our commitment to innovation in AI and cybersecurity, combined with the opportunity to work in vibrant locations like Paris or London, makes Mistral an attractive choice for those seeking meaningful and rewarding employment.
StudySmarter Expert Advice🤫
We think this is how you could land Pentester, Offensive Forward Deployment Engineer in London
✨Get Involved in the Cybersecurity Community
Diving into the cybersecurity community is key for landing that full-time gig. Join forums like Reddit's r/cybersecurity or attend local meetups to connect with industry veterans and other job seekers. Networking is everything in this field—don’t just be a passive lurker!
✨Show Off Your Skills with Capture the Flag Competitions
Participate in Capture the Flag (CTF) competitions; these are not just a fun way to boost your skills but also a chance to showcase your talent to potential employers. Many companies, including mistral, love seeing candidates who actively engage in these challenges.
✨Tailor Your Online Presence
Make sure your LinkedIn and any professional profiles reflect your cybersecurity expertise. Share your projects, whether they’re personal or from a previous role, to catch the eye of hiring managers. This is how they’ll find your passion and commitment to the field!
✨Apply Directly Through mistral
Don’t forget to head straight to our website and check out any openings for cybersecurity roles at mistral. Applying directly can sometimes give you an edge, especially if you can mention that you've been following our work or engaging in the community.
We think you need these skills to ace Pentester, Offensive Forward Deployment Engineer in London
Some tips for your application 🫡
Show off your technical skills:In cybersecurity, it's crucial to highlight your technical prowess. Make sure your CV showcases specific skills like network security, penetration testing, or threat analysis. If you have relevant certifications (like CEH or CISSP), pop those on the front page to grab attention!
Tailor your portfolio for the role:Even for a full-time role, a portfolio can set you apart. If you've worked on any cybersecurity projects—be it CTF challenges, security assessments, or research papers—include these in your application. This demonstrates not just your skills, but also your hands-on experience!
Use real-world examples:When writing your cover letter, don’t just stick to your qualifications. Share real-world examples of how you’ve tackled security issues or vulnerabilities. This gives the hiring team at mistral insight into your practical problem-solving abilities and makes your application memorable.
Demonstrate your passion for cybersecurity:Cybersecurity is an ever-evolving field, so show us that you’re always learning! Mention any recent courses, webinars, or industry events you’ve attended. This not only exhibits your enthusiasm but also signals to mistral that you’re committed to staying ahead in the game.
How to prepare for a job interview at mistral
✨Sharpen Your Technical Skills
For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.
✨Prepare for Scenario-Based Questions
Expect the interviewers at mistral to throw in some hypothetical situations to see how you’d handle them. Think about common security breaches or incidents and be prepared to explain how you would respond. This not only shows your problem-solving skills but also your understanding of real-world cybersecurity challenges.
✨Highlight Your Certifications
Certifications like CompTIA Security+, CISSP, or CEH can give you a significant edge in a full-time role in cybersecurity. Make sure to mention these during your interview and be prepared to discuss what you learned through those certifications and how they relate to the position at mistral.
✨Show Your Passion for Cybersecurity
Since you’re going for a full-time gig, showing genuine enthusiasm for the field can make all the difference. Share any personal projects, blogs, or communities you’re part of that relate to cybersecurity. This not only showcases your passion but also your commitment to staying engaged in this ever-evolving field.
