[Hiring] Staff Security Engineer @Zencoder

Role Description

We’re looking for a hands-on Senior or Staff Security Engineer to lead and own security across the company.

• Hardened cloud infrastructure
• Least-privilege access
• Secure delivery
• Vulnerability management
• Penetration testing
• Incident response

The threats in this space are increasing exponentially. Our product runs agents that read untrusted content, execute code, and hold credentials. Attackers now use AI to probe and fuzz faster than before. Prompt injection, data exfiltration through allowed channels, cross-session access, and insecure agent-written code reaching production are real risks for us today.

We want someone who will help us close the obvious gaps without being asked, and finds the problems nobody has written down yet.

You will work closely with our ITOps, platform and product engineers. Your job is to improve our security posture without slowing delivery:

• Build automated controls into existing workflows rather than rely on slow, blocking manual AppSec reviews.
• Test whether those controls hold, address critical risks, and take responsibility for security outcomes.

Qualifications

• Strong application security background - you can spot exploitable flaws, and explain the fix.
• Hands-on penetration testing and offensive security experience across web applications, APIs, and cloud infrastructure.
• Solid infrastructure and cloud security fundamentals: IAM, network segmentation, containers and isolation, secrets management, logging.
• Experience building detections and running incident response, not only reviewing them.
• Real fluency with AI coding agents and LLM-based systems - how they work, where they fail, and how they can be manipulated.
• Enough software engineering skill to build your own tooling, automation, and test harnesses.
• Sound judgment under pressure: you can weigh a risk against a release, decide, and explain the decision to engineers and founders.

Requirements

• 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 security programs and compliance frameworks (ISO 27001, SOC 2) in a small company (Nice to Have).

Benefits

• Impact: AI is reshaping how work gets done, and you'll be at the forefront of that shift.
• AI-First: We use AI to expand what one person can accomplish.
• Ownership: We keep the team small and give people real scope, autonomy, and equity.
• High Talent Density: A small team of highly capable people moves faster and builds better.
• Remote-First: We hire globally, prioritizing talent over location.

Company Description

Zencoder is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.