Full-time

Senior Application Security Engineer

Posted by Airswift • españa, españa, Spain

📍 españa, españa 🕒 March 01, 2026

About the Role

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 defensive secu...

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