Senior Manager, Customer Success

Horizon3.ai, Inc.

Job Overview

Location

US, Remote

Job Type

Full-time

Full Job Description

📋 Description

• Lead and grow a high-performing team of Customer Success Managers supporting enterprise, federal, and MSSP customers, ensuring they realize value from the NodeZero platform and driving measurable improvements in security posture.
• Coach and mentor CSMs across segments, foster a culture of ownership and accountability, and drive performance through strategic customer relationships with CISOs and security leadership in Fortune 500 organizations.
• Own expansion and retention by identifying growth opportunities, mitigating risk, improving health scores, and securing renewals while collaborating cross-functionally with Sales, Product, and Support teams.
• Build operational rigor by owning processes and reporting in Gainsight and Salesforce, developing playbooks and QBR templates, and serving as the Voice of the Customer to inform product and go-to-market strategy.

🎯 Requirements

• 7+ years of experience in Customer Success, Account Management, or related post-sales roles in cybersecurity or B2B SaaS
• 2–3+ years of direct people management experience with a track record of hiring, coaching, and leading CSMs to strong outcomes
• Proven success meeting or exceeding goals tied to Net Revenue Retention (NRR), Gross Dollar Retention (GDR), and expansion
• Experience managing strategic customers (Fortune 500) with executive-level relationship management and negotiation skills
• Deep understanding of security operations and/or MSSP business models (e.g., red teaming, vulnerability management, SOC workflows)
• Proficient in Gainsight, Salesforce, JIRA, and Confluence

🏖️ Benefits

• Competitive base salary range of $180,000 - $225,000 OTE (80/20 split) annually
• Equity package in the form of stock options for all full-time roles
• Comprehensive benefits including health, vision & dental insurance, flexible vacation policy, and generous parental leave
• Inclusive team culture with growth opportunities, innovative environment, and hybrid/remote work flexibility

Skills & Technologies

Senior

Remote

$180k-225k

Degree Required

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Horizon3.ai, Inc.

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About Horizon3.ai, Inc.

Horizon3.ai provides autonomous security testing and attack surface management software. Its NodeZero platform continuously assesses enterprise networks, clouds, and applications to find exploitable weaknesses, validate fixes, and prioritize risks. The company serves Fortune 500, government, and mid-market organizations seeking proactive defense without manual red teams.

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