Job Description

Join to apply for the Chief Information Security Officer role at Nightfall AI

Join to apply for the Chief Information Security Officer role at Nightfall AI

Nightfall AI ( is the unified platform that prevents data leaks and enables secure collaboration by protecting sensitive data and controlling how it's shared. For decades, legacy data leak prevention (DLP) solutions have failed to adequately protect sensitive information. Traditional DLP is outdated, intrusive, and complex - it wasn't designed for today's modern enterprise where users continuously share data across interconnected SaaS applications, endpoints, and now generative AI. Nightfall AI is the first AI-native DLP solution. We leverage AI to achieve twice the accuracy with a fraction of the false positives that overwhelm security teams. Nightfall does this without disrupting modern work patterns. Our AI-native platform spans sensitive data protection across SaaS, email, data exfiltration prevention on SaaS, endpoints, and data encryption. Nightfall's Developer Platform provides an open, flexible environment for developers to integrate our data classification and protection capabilities anywhere, including establishing trust boundaries for AI model building and consumption.

About The Position

As our CISO, you'll be responsible for both safeguarding Nightfall's internal systems and guiding our customers through their own security and compliance journeys. This role uniquely blends strategic security leadership with a field-facing, customer engagement focus .

Responsibilities

Security & Risk Leadership

• Own and evolve Nightfall's overall security strategy, ensuring we stay ahead of emerging threats and industry standards.
• Lead enterprise risk management, compliance, audit readiness, and security operations.
• Oversee our information security architecture, secure SDLC, and incident response processes.
• Partner with Engineering and Product teams to embed security into every layer of our platform.
• Lead efforts for certifications and audits (SOC 2, ISO 27001, etc.).

Field & Go To Market

• Serve as a strategic partner to Sales, Marketing, and Customer Success teams.
• Join customer and prospect conversations as a trusted advisor to address security concerns, explain our controls, and reinforce trust in our platform.
• Represent Nightfall at industry events, webinars, and executive briefings.
• Partner with GTM leadership to align our security posture with customer needs and market demands.

Qualifications

• Proven experience as a CISO or senior security leader in a high-growth B2B SaaS environment.
• Strong understanding of cloud security, DevSecOps, zero trust architectures, and modern compliance frameworks.
• Exceptional communicator with executive presence—comfortable interfacing with CISOs, CIOs, and security decision-makers.
• Experience supporting GTM motions, including joining sales calls, handling due diligence, and presenting to security-conscious enterprise buyers.
• Demonstrated ability to build and scale security teams, processes, and systems in dynamic environments.
• Thrives on multitasking & comfort with ambiguity
• Intellectually curious about data security and AI

Bonus Points

• Fluent public speaker or participates actively in a public facing security community
• Thought leadership
• Professional experience at a security startup

About Nightfall:

Nightfall is a cybersecurity startup dedicated to helping organizations secure and manage their sensitive data. As a leading enterprise technology company, our product affects the personal data that people entrust businesses to store & process with care every day. Critical data in modern organizations is often sprayed across a broad set of cloud data silos, and it's a herculean task for security & compliance teams to monitor, manage, and protect this highly sensitive data. Via machine learning, our product makes it easy for organizations to discover, classify, and protect this sensitive data across their cloud footprint - such as their corporate SaaS, data infrastructure, and even their own apps. In doing so, we prevent data leakage, provide unprecedented data visibility & protection across the cloud, and enable compliance. We're a technology startup founded in San Francisco, well-funded by leading institutional investors like Bain and Venrock, and a cadre of security & IT leaders from Okta, Salesforce, Atlassian, Splunk, FireEye, and more. Learn more on our website or by reaching out via email at careers@nightfall.ai.

Seniority level

• Seniority level

  Executive

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Software Development

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Job Tags

Full time, Work at office, Flexible hours,

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