Senior Application Security Engineer

Overview

Job Title: Senior Application Security Engineer

Duration: Minimum 1 year

Workload: Full time hours

Setup: Freelance (Daily rate / Limited Company / Umbrella / Sole Trader)

Location: Remote

We’re looking for a senior-level security expert to lead proactive security design and validation across complex web application environments.

Responsibilities

• Lead security architecture reviews and conduct in-depth threat modelling for new products and infrastructure.
• Perform hands-on penetration testing and security assessments to uncover and validate vulnerabilities.
• Research emerging threats and develop mitigation strategies to stay ahead of evolving attack vectors.
• Collaborate with engineering teams to embed security into the development lifecycle (DevSecOps).

Must-Have Skills

• 7+ years in offensive and defen...