At a Glance
- Tasks: Lead cutting-edge research in vulnerability discovery and develop innovative security tools.
- Company: Fast-growing cybersecurity scale-up trusted by Fortune 500 companies.
- Benefits: Competitive salary, remote work, and exciting growth opportunities.
- Other info: Join a dynamic team in a fully remote role with excellent career advancement.
- Why this job: Make a real impact in cybersecurity with groundbreaking technology and research.
- Qualifications: 5+ years in vulnerability research and software engineering, with a track record of 0-day discoveries.
The predicted salary is between 110000 - 110000 £ per year.
Remote – UK Based
Up to £110,000 + benefits
Permanent – Full time
Got a track record of 0-day discoveries, public CVEs, and a reputation for finding bugs that actually move the needle? Join a research-driven, venture-backed cybersecurity scale-up trusted by Fortune 500 enterprises and critical infrastructure providers. Recognised by Gartner, $29M funded, and scaling fast worldwide.
As a Principal Vulnerability Engineer, you’ll own the full vulnerability lifecycle – from discovery, through detection, to deployment – building production-grade tooling and pioneering LLM-powered offensive security workflows.
What you’ll be doing:
- Leading deep research across 0-days and n-days, with patch diffing across source-available and binary-only targets
- Designing tooling for automated vulnerability discovery, exploit validation, and detection signature generation
- Architecting production-grade, LLM-powered research workflows
- Focusing on the vulnerabilities that matter – RCEs, auth bypasses, the bugs that change a client’s risk posture overnight
What they’re looking for:
- ~5+ years of mixed vulnerability research and software engineering experience
- ~ A demonstrable track record of original 0-day discovery – public advisories, CVEs, or equivalent
- ~ Deep n-day research and patch diffing chops
- ~ Confidence across both web and binary vulnerability classes
- ~ Production-grade software engineering experience, ideally in Python
- ~ Mastery of Burp Suite, Ghidra/IDA, debuggers, fuzzers
- ~ Hands-on experience using LLMs in research workflows
Principal Engineer (Fully Remote) in London employer: Xact Placements Limited
As a Principal Engineer at our high-growth cybersecurity scale-up, you'll be part of a dynamic and innovative team that values research-driven approaches and cutting-edge technology. We offer a fully remote work environment within the UK, competitive salary up to £110,000, and a range of benefits that support your professional growth and well-being. Join us in making a significant impact on cybersecurity for Fortune 500 enterprises while enjoying a collaborative culture that fosters creativity and excellence.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Engineer (Fully Remote) 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 Xact Placements Limited, 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 Xact Placements Limited
Don’t forget to head straight to our website and check out any openings for cybersecurity roles at Xact Placements Limited. 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 Principal Engineer (Fully Remote) 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 Xact Placements Limited 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 Xact Placements Limited that you’re committed to staying ahead in the game.
How to prepare for a job interview at Xact Placements Limited
✨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 Xact Placements Limited 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 Xact Placements Limited.
✨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.
