Senior Application Security Engineer (198811) in London

Senior Application Security Engineer (198811) in London

London Full-Time 60000 - 80000 Β£ / year (est.) No working from home possible
Harnham

At a Glance

  • Tasks: Embed security in product development and conduct hands-on security assessments.
  • Company: Forward-thinking digital financial services organisation focused on innovation.
  • Benefits: Work with modern tech, clear progression opportunities, and investment in learning.
  • Other info: Join a growing InfoSec team that values practical, engineering-led security approaches.
  • Why this job: Make a visible impact on secure product design and collaborate with engineering teams.
  • Qualifications: Strong experience in application security and knowledge of security testing tools.

The predicted salary is between 60000 - 80000 Β£ per year.

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

Senior Application Security Engineer (198811) in London employer: Harnham

Join a dynamic digital financial services organisation that prioritises security from the outset, offering you the chance to influence product design and development in a collaborative environment. With a strong focus on employee growth, you will benefit from clear progression opportunities and investment in your professional development, all while working with cutting-edge technology in cloud and AI-driven systems. This is an excellent opportunity for those looking to make a meaningful impact in a forward-thinking company that values innovation and teamwork.

Harnham

Contact Details:

Harnham Recruitment Team

We think you need these skills to ace Senior Application Security Engineer (198811) in London

Application Security
Security Assessments
Threat Modelling
Secure Architecture Design
Security Tooling Integration
SAST
SCA