RESPONSIBILITIES: Kforce's client in Greenwood Village, CO is seeking a highly skilled Security Dev Test Engineer to join their team and play a critical role in protecting their systems from evolving security threats and fraud-particularly in the wireless cellular and digital identity/payment domains. Summary: The Engineer will focus on front-end web and mobile application security, API security, and telecom-specific risks (e.g., eSIM/SIM/device swaps), applying both a hacker's mindset and stron