Partner Customer Success Manager

Get to Know Us

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs. 

We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

Summary

We’re looking for an experienced, mission-driven Partner Success Manager to join our growing team and lead the post-sales experience for our managed service partners. In this role, you’ll act as the strategic and technical advisor to MSSPs and MSPs, helping them succeed in deploying, operationalizing, and delivering value with NodeZero across their customer base. You’ll partner cross-functionally with Sales, Product, Engineering, and Support to amplify partner impact and help scale our presence in the partner ecosystem.

What You’ll Do

• Own the Partner Lifecycle: Serve as the primary post-sales point of contact for a portfolio of MSSP/MSP/GSI partners—guiding them from onboarding and activation to value realization, enablement, and advocacy.
  

• Drive Adoption & Enablement: Lead technical onboarding and hands-on training sessions to ensure partner teams can effectively use NodeZero and deliver measurable outcomes for their customers.
  

• Build Strategic Relationships: Cultivate trusted relationships with partner stakeholders across delivery, technical, and executive roles to align on joint success and roadmap planning.
  

• Measure & Optimize Performance: Monitor partner engagement, usage patterns, and customer outcomes to identify areas of opportunity, risk, and growth. Use data to inform strategic recommendations.
  

• Resolve & Escalate: Serve as an escalation point for partner-related issues, collaborating with Support and Product to ensure fast, high-quality resolution.
  

• Contribute to Partner Playbooks & Content: Create scalable partner resources, including guides, case studies, enablement sessions, and QBR frameworks.
  

• Enable Joint GTM Success: Partner with Channel and Sales to support co-selling motions and drive mutual revenue growth through partner-led customer expansion.
  

• Influence Product Direction: Relay structured feedback from partners to internal teams, helping shape the product roadmap with a deep understanding of partner needs and market dynamics.
  

Who You Are

• 5+ years of experience in Customer Success, Technical Account Management, Channel Management, or Partner Enablement—preferably in cybersecurity or B2B SaaS
  

• Strong understanding of MSSP/MSP business models and their delivery of security services (e.g., SOC operations, vulnerability management, red teaming)
  

• Technical fluency in cybersecurity solutions and/or experience supporting highly technical users
  

• Demonstrated success building long-term relationships with partners, managing joint success plans, and driving retention and expansion
  

• Experience supporting revenue-based goals tied to partner adoption, NRR, or managed ARR
  

• Self-starter comfortable navigating ambiguity and scaling post-sales programs from the ground up
  

• Strong presentation, training, and interpersonal skills—able to engage both technical practitioners and executive stakeholders
  

• Proficient with CS tools like Salesforce, Gainsight, JIRA, and Confluence
  

• Willingness to travel to partner sites and industry events (~10–30%)

Other duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Travel: This is a fully remote position, but successful execution of the job may require up to 30% of travel.

Perks of Horizon3.ai

• Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.

• Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.

• Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.

• Hybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.

• Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

• On-Target Compensation $130,000 - $175,000 annually (80/20 split). The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice. 

Application Note

In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.