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Principal Security Engineer

Talkdesk

, , portugal, , , portugal, Portugal Full-time June 14, 2026

Found Description

We are seeking a battle-hardened Principal Security Engineer to lead our technical offensive and defensive strategies. This is not a policy-writing role; it is an extremely hands‑on position designed for an engineer who thrives on breaking complex systems, building custom security tooling, and securing the next generation of AI‑driven applications. You will be the technical authority for Application Security, Penetration Testing, and Cloud infrastructure, with a specialized focus on the security lifecycle of Large Language Models (LLMs) and AI integrations.

Key Responsibilities

1. Advanced AppSec & Offensive Security

  • Deep-Dive Pentesting: Conduct sophisticated manual penetration tests across web applications, APIs, and microservices architecture.
  • Exploit Development: Go beyond automated scanners to identify logic flaws and develop Proof-of-Concept (PoC) exploits to demonstrate business risk.
  • Secure Code Revi...

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