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Zencoder

Staff Security Engineer

Zencoder

. Lead and own security across the company .

Posted 11/6/2026full-timeRemote • SpainLeadWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in application security, penetration testing, and cloud infrastructure hardening, with a strong focus on implementing automated security controls and incident response strategies. Proficient in identifying vulnerabilities and collaborating with engineering teams to enhance security measures across delivery pipelines.

Highest-signal resume keywords
Application SecurityPenetration TestingCloud Security FundamentalsIncident ResponseAI Coding Agents

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Penetration TestingVulnerability ManagementIAMNetwork SegmentationContainers and IsolationSecrets ManagementLoggingSoftware EngineeringAutomationCode Review
Soft Skills
Risk AssessmentCollaborationCommunication
Tools & Technologies
Cloud InfrastructureSecurity ControlsDetection SystemsTest Harnesses
Certifications & Qualifications
ISO 27001SOC 2
Industry Keywords
Red-TeamBug BountyCTFCompliance Frameworks

Tech Stack

Tools & technologies
Cloud

About the role

Key responsibilities & impact
  • Lead and own security across the company
  • Harden cloud infrastructure and implement least-privilege access
  • Improve secure delivery and vulnerability management
  • Conduct penetration testing and incident response
  • Address prompt injection, data exfiltration, cross-session access, and insecure agent-written code risks
  • Set security priorities and drive fixes through verified completion
  • Identify application vulnerabilities through code review, penetration testing, and agent-specific red-team exercises
  • Collaborate with ITOps, platform, and product engineers to harden infrastructure and secure delivery pipelines
  • Build detection for user and agent activity
  • Build automated security controls into existing workflows and test their effectiveness

Requirements

What you’ll need
  • Strong application security background
  • Hands-on penetration testing and offensive security experience across web applications, APIs, and cloud infrastructure
  • Solid infrastructure and cloud security fundamentals, including IAM, network segmentation, containers and isolation, secrets management, and logging
  • Experience building detections and running incident response
  • Fluency with AI coding agents and LLM-based systems
  • Software engineering skills to build tooling, automation, and test harnesses
  • Ability to weigh risks against releases and explain security decisions
  • Experience securing sandboxed or multi-tenant code execution environments (nice to have)
  • Red-team, bug bounty, or CTF track record (nice to have)
  • Experience with ISO 27001 and SOC 2 security programs and compliance frameworks (nice to have)

Benefits

Comp & perks
  • Equity
  • Remote-first work arrangement
  • Global hiring prioritizing talent over location
  • Barcelona hub with weekly co-working
  • Real scope, autonomy, and ownership
  • Direct collaboration with senior teammates and the founder
  • AI-first work environment
  • Equal-opportunity and inclusive workplace