Lawrence Harvey
Senior Security Engineer (AppSec)
Skills
18 days ago
Share this opportunity
Share this opportunity to other talents of your network:
✓ Offer them a visibility boost with clients.
✓ Help your contacts find their next job.
Important information
Contract type:
Permanent
Salary:
£120,000 – £150,000 / year
Location:
London, UK
Work mode:
Onsite
Published on:
7 October 2026
What they need
Role : Senior Security Engineer (AppSec)
Location : London 1-2 days per week
Salary : up to £150,000 fixed + bonus + benefits + LTI's and share options
Are you looking to join a fast-growing firm that is currently undergoing a major rebuild of its Security Engineering function?
You won't be inheriting an existing, mature security programme here and maintaining it. You'll be joining at a point where there's a genuine opportunity to challenge what already exists, rip out what doesn't work and rebuild Security Engineering properly, all across a complex cloud-native, platform and application environment.
What you'll be doing:
- Building, deploying and owning security tooling and controls in production
- Improving security across the full SDLC
- Embedding threat modelling, requirements and automated controls into delivery.
- Owning and optimising SAST, DAST and SCA across CI/CD
- Working closely with Platform and Software Engineering teams to prioritise and remediate vulnerabilities based on risk
Some of what you'll bring:
- Strong experience building and shipping security platforms and tooling. Ideally within Application Security
- Strong production coding experience and solid CI/CD, testing, version control and observability
- Hands-on experience designing security controls across complex cloud environments.
- SAST, DAST, SCA, threat modelling and integrating security into the SDLC.
- Experience working with PCI-DSS, DORA, GDPR or similar requirements.
Bonus points:
- Offensive Security, Red Teaming, Penetration Testing background. An defensive security specialist with an attacker mindset
- You've got a comprehensive understanding of (or experience within) the Cryptocurrency space
This is a genuinely exciting chance to join at an inflection point for Security Engineering; you'll have the autonomy, technical scope and backing to build things properly . If you're looking to shape architecture, write code, solve hard problems and see your work deployed at scale.
** This is a hands-on engineering role; it's imperative that you're building and deploying security tooling at scale in your current or previous role
** Top end of salary banding indicates that you have all of the above requirements in depth, with the 'bonus points'
Apply using the link or send an updated resume to [email protected]
Other offers great for you!
These companies are also looking for great profiles
Axians MSP Ouest
Ingénieur Sécurité SOC
Freelance
Brest, France
Hybrid
Skills
23 days ago
Quick apply
Visian
Ingénieur Sécurité PKI et Automatisation
Freelance
Paris, France
Hybrid
Skills
6 days ago
Quick apply
Espace Freelance
Ingénieur Sécurité Firewall
Freelance
Paris, France
Hybrid
Skills
2 days ago
Quick apply
No company information available.