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Zencoder logo
Zencoder

Posted 5d ago

Staff Security Engineer

Own security for AI agents that run code, read untrusted content and hold credentials

Within a regionAnywhere in Europe, as long as you like

Open to candidates based anywhere in Europe, with no set hours stated, so you choose where you work.

How long can you stay where you're going?
  • Equity
  • Small senior team
  • Barcelona co-working hub

The role

Zencoder needs a hands-on security lead to harden its cloud and delivery pipelines and defend an AI agent platform against threats like prompt injection. You'll own security outcomes, not just recommendations.

What you'll do

  • 1Set security priorities and drive fixes through to verified completion
  • 2Find vulnerabilities via code review, pen testing and agent red-teaming
  • 3Harden infrastructure and build security into delivery pipelines
  • 4Build detection for user and agent activity
  • 5Lead incident response

What they're looking for

Must-haves

  • Strong application security background
  • Hands-on pen testing across web apps, APIs and cloud infrastructure
  • Cloud security: IAM, segmentation, containers, secrets, logging
  • Experience building detections and running incident response
  • Fluency with AI coding agents and LLM-based systems

Nice to have

  • Securing sandboxed or multi-tenant code execution environments
  • Red-team, bug bounty or CTF track record
  • ISO 27001 or SOC 2 experience in a small company

The company

Zencoder logo

Zencoder

Remote-first AI agent platform

Zencoder builds and orchestrates AI agents that ship real work such as code, research and operations. It's a small, remote-first team with a hub in Barcelona.

Summarised by Jobs That Travel from Zencoder's listing.

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