Enterprise Customer Success Manager

About Nightfall: Nightfall is the AI-native, unified data loss prevention and insider risk management platform that protects sensitive data across SaaS apps, GenAI tools, email, endpoint devices, and more. Hundreds of customers, spanning AI innovators to top 10 banks, trust Nightfall to detect and stop data exfiltration at scale. Nightfall enables organizations to innovate freely without the risks of losing intellectual property or exposing customer data. Our agentic platform helps security teams regain their time by putting data loss prevention on autopilot. With automatic remediation, security violations can be resolved automatically before they become incidents, and end-users can be automatically trained and coached in the moment to self-heal violations that they introduce. Nightfall is backed by leading VC firms including Bain Capital Ventures (Enrique Salem - former CEO of Symantec), Venrock (early investors in Cloudflare), WestBridge Capital, Pear VC (early investors in Dropbox and Doordash), and a cadre of cybersecurity leaders including Frederic Kerrest (founder of Okta), Maynard Webb (former COO of eBay), Ryan Carlson (President of Chainguard), Kevin Mandia (founder of Mandiant), and many others. About the role: As an Enterprise Customer Success Manager at Nightfall AI, you will own strategic relationships with our largest customers and ensure they realize clear, measurable value from Nightfall’s AI-native data security platform. You’ll act as a trusted advisor to security, compliance, and engineering leaders—guiding customers from onboarding through renewal and expansion. This role is ideal for someone who thrives in complex enterprise environments, can translate technical capabilities into business outcomes, and wants to help define how Customer Success scales at a high-growth security company. What You'll Do Own the full enterprise customer journey , from onboarding and adoption through value realization, renewal, and expansion. Manage a portfolio of ent