Senior Offensive Security Engineer

GitHub

📍 , , United Kingdom, , , United Kingdom, United-Kingdom

Full-time Engineering Posted March 02, 2026

Job Description

About GitHub

GitHub is the world’s leading platform for agentic software development — powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot.

Locations

In this role you can work from Remote, United Kingdom

Overview

GitHub is changing the way the world builds secure software and we want you to help change the way we secure GitHub. GitHub’s Red Team is an active threat emulation team that models real world threats and executes simulated attacks targeting GitHub. We're looking for an offensive security engineer to expand GitHub’s Red Team operations.

In this role you will execute both red and purple flavored offensive operations, deliver results to key stakeholders through written reports and live briefings, and partner with product teams for remediation....