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- Tasks: Lead application security and design secure systems for a high-growth AI platform.
- Company: Confidential AI company backed by top investors, serving elite tech clients.
- Benefits: Competitive salary, equity options, and a chance to shape security culture.
- Other info: Join a dynamic team with excellent growth opportunities and modern tech stack.
- Why this job: Be the first Security Engineer and make a real impact from day one.
- Qualifications: Senior experience in security, with skills in Go, TypeScript, or React.
The predicted salary is between 110000 - 200000 £ per year.
Join a high-growth scale-up as their first Security Engineer, owning application security across a 60+ person engineering team. You will partner with product squads to build secure systems from the ground up for a platform used by Netflix, Airbnb, and Block. This is a foundational role with massive ownership and technical influence.
Location: London, UK
Why this role is remarkable:
- Foundational hire opportunity: As the first security-specific engineer, you will shape the entire security culture and function from day one without legacy debt.
- Elite backing and traction: Backed by Index Ventures and Insight Partners with $100M raised, serving 1,500+ top-tier tech companies globally.
- Product-driven engineering: Work in a high-trust, ex-Monzo leadership environment that values shipping daily and uses a modern Go and TypeScript stack.
What You Will Do:
- Lead application security by partnering with product teams to design and review features with security built in from the initial architecture phase.
- Identify and remediate vulnerabilities using both white-box code reviews and black-box penetration testing across applications, APIs, and GCP infrastructure.
- Build and implement pragmatic security tooling and automation that strengthens defenses without compromising the engineering team's high shipping velocity.
The ideal candidate:
- Senior or Staff-level experience with a deep track record in vulnerability research, penetration testing, and secure code review for modern web stacks.
- Hands-on proficiency in Go, TypeScript, or React, with the ability to influence design and implementation decisions directly alongside product engineers.
- Pragmatic approach to risk management within cloud environments (GCP), prioritising high-impact security improvements while maintaining a culture of rapid delivery.
Security Engineer (£110k-£200k + Equity) at $100M Series B AI a confidential company response p[...] in London employer: Jack & Jill
Contact Detail:
Jack & Jill Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Security Engineer (£110k-£200k + Equity) at $100M Series B AI a confidential company response p[...] in London
✨Tip Number 1
Get to know Jack! He’s your go-to AI for understanding what you’re great at and what you want from your career. Chat with him to make sure he knows your skills and ambitions, so he can match you with the best opportunities.
✨Tip Number 2
Don’t just wait for jobs to come to you; be proactive! Use our website to explore roles that fit your profile. The more you engage, the better your chances of landing that dream job.
✨Tip Number 3
Prepare for your chat with Jack by brushing up on your experience and achievements. The clearer you are about what you bring to the table, the easier it’ll be for him to advocate for you with Jill and her clients.
✨Tip Number 4
Stay open-minded! If Jill doesn’t think you’re a perfect fit for one role, Jack will help you find other excellent alternatives. Sometimes the best opportunities come from unexpected places!
We think you need these skills to ace Security Engineer (£110k-£200k + Equity) at $100M Series B AI a confidential company response p[...] in London
Some tips for your application 🫡
Tailor Your Application: Make sure to customise your CV and cover letter for the Security Engineer role. Highlight your experience with application security, vulnerability research, and any relevant tech stacks like Go or TypeScript. We want to see how you can bring value to our team!
Showcase Your Technical Skills: Don’t hold back on showcasing your hands-on experience with secure code reviews and penetration testing. Use specific examples that demonstrate your ability to influence design decisions and improve security practices. This is your chance to shine!
Be Clear and Concise: When writing your application, keep it clear and to the point. Avoid jargon unless it's necessary, and make sure your passion for security and technology comes through. We appreciate straightforward communication!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to track your application and ensure it gets into the right hands. Plus, it makes the process smoother for everyone involved!
How to prepare for a job interview at Jack & Jill
✨Know Your Stuff
Make sure you brush up on your knowledge of application security, vulnerability research, and penetration testing. Familiarise yourself with the tech stack mentioned in the job description, especially Go and TypeScript, as you'll want to speak confidently about how you can influence design and implementation decisions.
✨Showcase Your Experience
Prepare specific examples from your past work that demonstrate your hands-on proficiency and pragmatic approach to risk management. Be ready to discuss how you've built secure systems or remediated vulnerabilities in previous roles, as this will show your potential employer that you can hit the ground running.
✨Understand the Company Culture
Research the company’s values and their product-driven engineering environment. Be prepared to discuss how you can contribute to a high-trust culture and maintain rapid delivery while implementing security measures. This will help you align your answers with what they’re looking for in a foundational hire.
✨Ask Insightful Questions
Prepare thoughtful questions to ask during the interview. Inquire about their current security challenges, the tools they use, and how they envision the role evolving. This not only shows your interest but also helps you gauge if the company is the right fit for you.