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Senior application security engineer (198811)

London
Harnham Search & Selection
Security engineer
€70,000 a year
Posted: 8 June
Offer description

This is an opportunity to join a forward-thinking technology-driven business where security is embedded from day one. You will play a key role in shaping how products are built securely, working closely with engineering teams to influence design decisions and protect innovative, customer-facing solutions. The role offers strong technical ownership, exposure to modern cloud and AI-driven systems, and the chance to make a visible impact across the organisation.


The Company

They are a modern digital financial services organisation focused on delivering user-centric products through technology and innovation. With a strong emphasis on collaboration and continuous improvement, they have built a culture where teams are empowered to challenge conventions and deliver meaningful change. Security is treated as a core pillar of product development, not an afterthought. As part of a growing InfoSec function, you will join a team that values practical, engineering-led security approaches.


The Role

* Embed security into the full product lifecycle, from concept through to release
* Conduct hands-on security assessments across web, mobile, and backend applications
* Lead and support threat modelling activities for new features and systems
* Collaborate closely with engineering teams to design secure architectures
* Integrate and optimise security tooling such as SAST, SCA, DAST and vulnerability scanning
* Deliver secure engineering training and guidance to developers
* Support triage and remediation of vulnerabilities from testing, tooling, and external reports
* Contribute to automation of security processes using scripts and internal tools


Your Skills & Experience

* Strong commercial experience in application or product security
* Hands-on experience with security testing tools such as Burp Suite, Nmap, or similar
* Solid knowledge of web or mobile security, with willingness to broaden across both
* Good understanding of networking fundamentals and operating systems
* Experience conducting threat modelling and explaining security trade-offs to stakeholders
* Knowledge of secure coding practices and common vulnerabilities
* Familiarity with cloud environments and infrastructure concepts
* Comfortable working closely with engineers in a collaborative environment


What They Offer

* Opportunity to work on modern technology including cloud and AI-driven systems
* A highly collaborative environment with strong engineering partnerships
* Clear progression opportunities within a growing security function
* Investment in learning and development, including time for upskilling
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