Senior AppSec Engineer

United Kingdom·Newcastle upon TyneFull Timesenior

EngineeringSecurity Engineer

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Quick Summary

Overview

The Role Are you passionate about building security into software from the ground up? We’re looking for a Senior Application Security Engineer to take charge of strengthening and evolving security.

Technical Tools

EngineeringSecurity Engineer

The Role

Are you passionate about building security into software from the ground up? We’re looking for a Senior Application Security Engineer to take charge of strengthening and evolving security.

In this role, you won’t just identify risks you’ll lead the charge in transforming how secure software is built, working side-by-side with engineering and product teams to make security an intrinsic part of everything we deliver.

What you’ll be doing

Own and drive application security strategy, influencing key security metrics and outcomes
Embed secure-by-design principles into every stage of the development lifecycle
Partner with engineers and product teams to elevate security awareness and capability
Introduce and optimise automated security controls within CI/CD pipelines
Lead threat modelling and secure design discussions, shaping decisions around critical areas like authentication and data protection
Ensure security tooling (SAST, DAST, SCA) is effective, scalable, and delivering real value
Oversee and enhance testing initiatives including penetration testing, scanning, and bug bounty programmes
Act as a trusted advisor to engineering teams triaging issues and guiding practical remediation
Contribute to security standards, documentation, and audit readiness
Champion a strong, proactive security culture across the organisation