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Customer Success Manager

Nucleus Security

Remote (US) · Posted October 2, 2026

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About the job

Customer Success Manager

Nucleus is seeking a Customer Success Manager with a specialization in Strategic/Major Accounts to join our customer success team to support Nucleus customers. The Customer Success Manager is instrumental in the organization’s ability to deliver the full breadth of capability of our Nucleus platform for Unified Vulnerability Management. This technical role is responsible for owning the customer experience and engagement inclusive of guiding customers with planning the use of Nucleus, leading the deployment of the platform, identifying the early wins and driving the operational use of the solution. Demonstrated abilities in thought leadership, stakeholder management, technical competencies in security and architecture, multitasking, organizational skills and a high capacity to learn are imperative. The Nucleus Customer Success & Services program is responsible for helping customers architect, deploy and adopt the Nucleus Platform and to integrate all vulnerability scans across the enterprise NetSec and AppSec scanners, pen tests, and support the vulnerability management team with leading vulnerability prioritization and workflow automation processes. Nucleus is a fast-growing startup where we recognize and reward performance and encourage sustainable working hours. Nucleus believes “work is people”, and when our people succeed, our company succeeds. We are a remote first company with the ability to work anywhere in the United States.

What you will do: Involvement in “Go Live” kickoff engagements.

Manage the design and architecture stage of Nucleus deployments.

Manage stakeholders in large, complex projects implementing org-wide transformation programs.

Oversee the deployment and configuration of Nucleus in customer environments. Help clients’ success by taking a proactive approach to helping achieve project goals through project management and scripting (Python3)

Manage customer expectations regarding timelines of new functionality

Provide product expertise and guidance to customers on the use of Nucleus to implement high-level vulnerability programs and successful modernization of VM.

Collaborate and engage with the Nucleus engineering & product teams on suggested features, processes and opportunities for improving the product.

Help establish the Customer Success Organization supporting Nucleus as the industry’s best by developing collateral and tools to operate more effectively and enable customers to be successful.

Identify opportunities for growth in strategic accounts and collaborate with other teams to help deliver the key results that drive growth of customer accounts.

What You Can Do: Demonstrated ability to successfully manage large, complex accounts with complicated timelines and deliverables

Understanding of how large enterprises operate in the context of security with the ability to learn traditional network vulnerability management.

Ability to learn vulnerability management in the context of application security, development pipelines and cloud environments

Programming language and scripting knowledge of Python, with basic experience.

Ability to learn the SANS Vulnerability Management Maturity Model and what it means for Nucleus customers.

Preferred Qualifications: Background in vulnerability management in large enterprises

Understanding of vulnerability management processes and experience working with Executives to know what the requirements of a successful program are for them.

Knowledge/experience with development pipelines and working with Enterprise Application Security Architects, with an emphasis on vulnerability management/triage

Ability to manage stakeholders at a high level

Why You Should Be Excited 100% company-paid health, dental, vision, life, and short-term disability insurance options

Generous 401k contribution (not a match)

Flexible PTO + 10 company holidays

Equity in a high-growth, VC-backed startup

Fantastic company culture

Work on a truly unique, market- defining product

Additional Information At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.