Senior Security Engineer — Pen Testing & AI-Driven Defense

Cisco; Denver (CO); Remote; USD 139,000 - 204,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

401(k) match

Parental leave

Disability coverage

RSU grants

Job summary

Cisco is seeking a lead penetration tester to drive security across on-prem and cloud applications in Denver. You will craft sophisticated attack plans and deliver detailed remediation guidance to development teams to mature products.

You will build and operate AI-guided testing workflows to scale coverage across complex architectures, making risk-based decisions and fostering a proactive security culture.

Qualifications

• Bachelor's degree with extensive penetration testing experience or higher degrees with relevant work.
• Advanced proficiency across web, mobile, networks, and distributed systems security.
• Deep understanding of vulnerabilities and remediation strategies.
• Experience with public clouds (AWS/GCP).
• Ability to develop custom tooling in Python or Bash.

Responsibilities

• Lead advanced penetration testing engagements for on-prem and cloud portfolios.
• Craft attack plans and provide remediation guidance to development teams.
• Build and operate agentic AI workflows to scale testing capabilities and improve coverage.
• Help drive risk-based decisions and promote a proactive security culture.

Skills

Penetration testing

Cloud security

Python

Bash

C++

JavaScript

Go

Threat modeling

Education

Bachelor's +7y

Master's +4y

PhD +1y

Tools

AWS

GCP

Python tooling

Splunk

Job description

Cisco is seeking a lead penetration tester to drive security across on-prem and cloud applications in Denver. You will craft sophisticated attack plans and deliver detailed remediation guidance to development teams to mature products.

You will build and operate AI-guided testing workflows to scale coverage across complex architectures, making risk-based decisions and fostering a proactive security culture.