At a Glance
- Tasks: Build and enhance security features in a cutting-edge serverless AWS environment.
- Company: Join a dynamic Series A B2B SaaS company backed by top-tier VCs.
- Benefits: Enjoy equity options, competitive pay, and the chance to shape security from the ground up.
- Other info: Be part of a high-impact team with opportunities for growth and ownership.
- Why this job: Make a real impact by designing security into the software lifecycle and engaging with enterprise clients.
- Qualifications: Strong experience in cloud-native security engineering and hands-on skills with IaC and TypeScript.
The predicted salary is between 60000 - 84000 £ per year.
Overview
This range is provided by Wave Talent. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range
Job Title: Senior Security Engineer
Location: London (3 office days/week)
Industry: B2B SaaS / Procurement & Spend Control
Stage: Series A, backed by tier-1 VCs
Benefits
- Founding security engineer role with massive ownership
- Modern serverless stack (AWS, IaC, TypeScript)
- Equity with real upside
- High-impact opportunity to build security from the ground up
This role doens't offer relocation or sponsorship
Responsibilities
You’ll be deeply embedded in the platform engineering team, building new security features, rolling out testing frameworks, and hardening serverless AWS infrastructure. Security here isn’t an afterthought; you’ll design it in from the start, making sure the stack (AWS, serverless, TypeScript, IaC) stays ahead of evolving threats.
Alongside the engineering, you’ll play a critical role in customer conversations, providing reassurance to enterprise clients, walking them through architecture, frameworks, and secure connections, and showing how security is built into the software lifecycle. About 10–15% of your role will be commercial-facing, enabling revenue and building trust with customers.
This is a senior/staff-level role where high ownership, passion for delivery, and the ability to make meaningful change are essential. You’ll have the chance to build the security function, shape culture, and scale security as the company grows.
Must have requirements
- Strong security engineering experience in cloud-native SaaS environments
- Hands-on with IaC (Terraform/CDK) and TypeScript
- Proven experience building & rolling out security features ahead of time
- Ability to partner with sales/CS teams on enterprise customer calls
- High ownership mindset, bias for action, and passion for impact
Bonus points for experience with
- Security tooling (Vanta, Snyk, Wiz, Semgrep, Orca)
- Multi-region, fine-grained data security at scale
- Open-source contributions, CTF wins, or conference talks
- Procurement/fintech data-flows or PCI
Seniority level
- Mid-Senior level
Employment type
- Full-time
Job function
- Industries: Software Development
Lead Security Engineer employer: Wave Talent
As a Lead Security Engineer at our London office, you'll join a dynamic B2B SaaS company in its Series A stage, where your contributions will directly shape the security landscape of our innovative platform. We offer a collaborative work culture that values high ownership and impactful delivery, alongside competitive equity options and a modern tech stack. With opportunities for professional growth and the chance to engage with enterprise clients, this role is perfect for those looking to make a meaningful difference in a fast-paced environment.
StudySmarter Expert Advice🤫
We think this is how you could land Lead Security Engineer
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work at companies you're interested in. A friendly chat can lead to referrals, which are often the best way to get your foot in the door.
✨Tip Number 2
Prepare for those interviews! Research the company and its tech stack, especially AWS and TypeScript in this case. Be ready to discuss how you can build security features and enhance their infrastructure – show them you’re the perfect fit!
✨Tip Number 3
Don’t underestimate the power of follow-ups! After an interview, drop a quick thank-you email to express your appreciation and reiterate your enthusiasm for the role. It keeps you on their radar and shows your professionalism.
✨Tip Number 4
Apply through our website! We love seeing candidates who take the initiative. Plus, it gives you a better chance of being noticed by our hiring team. So, don’t wait – get your application in today!
We think you need these skills to ace Lead Security Engineer
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Lead Security Engineer role. Highlight your experience with cloud-native SaaS environments and any hands-on work with IaC and TypeScript. We want to see how your skills align with what we're looking for!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about security engineering and how you can contribute to building our security function from the ground up. Let us know what excites you about this opportunity!
Showcase Relevant Projects:If you've worked on any relevant projects, especially those involving security features or cloud infrastructure, make sure to mention them. We love seeing real-world examples of your work and how you've tackled security challenges in the past.
Apply Through Our Website:We encourage you to apply through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for the role. Plus, it’s super easy to do!
How to prepare for a job interview at Wave Talent
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, especially AWS, IaC, and TypeScript. Brush up on your hands-on experience with these tools, as you might be asked to discuss specific projects or challenges you've faced while using them.
✨Showcase Your Security Mindset
Prepare examples of how you've built security features into previous projects. Be ready to explain your thought process and how you stay ahead of evolving threats. This role is all about proactive security, so demonstrate your passion for making security a priority from the start.
✨Engage with Customer Scenarios
Since this role involves customer interactions, think of scenarios where you’ve had to reassure clients about security measures. Practice explaining complex security concepts in simple terms, as you’ll need to build trust with enterprise clients during calls.
✨Emphasise Ownership and Impact
This position requires a high ownership mindset, so come prepared with examples that highlight your ability to take initiative and drive meaningful change. Discuss times when you’ve led projects or made significant improvements in your previous roles.
