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Salary: USD 169,000 - 200,000 / annual
Horizon3.ai is a fast-growing, remote-first cybersecurity company that has built NodeZero, an autonomous penetration testing platform used by organizations ranging from educational institutions to Global 100 enterprises. The company was founded by former U.S. Special Operations cyber operators, startup engineers, and cybersecurity practitioners, and is committed to helping organizations proactively identify and fix exploitable attack vectors before criminals exploit them.
You will serve as a Staff People Partner supporting the Engineering, Product, Design, Security Research, and Data organizations through a period of rapid growth. This is a strategic, hands-on role that requires both deep HR expertise and the ability to operate with conviction and urgency in a fast-moving environment.
Key responsibilities include:
- Partnering with technical leaders to scale high-performing organizations while supporting ambitious product roadmap delivery
- Advising on organizational design, workforce planning, and resourcing strategies aligned to business and product priorities
- Coaching managers and leaders through hypergrowth challenges, including team scaling, organizational change, talent development, and management best practices
- Collaborating with Engineering leadership and Finance on headcount planning, hiring prioritization, and organizational investments
- Driving talent reviews, calibration, succession planning, and promotion discussions to build leadership bench strength
- Using organizational health, engagement, attrition, and workforce data to proactively identify risks and improve team effectiveness
- Supporting leaders through organizational changes to maintain alignment, engagement, and execution capability
- Accelerating new manager and leader effectiveness through coaching, onboarding, and leadership development
- Managing employee relations matters with sound judgment, balancing business objectives, employee experience, and organizational risk
- Partnering with People Operations to build scalable programs, processes, and manager enablement for a rapidly growing technical organization
- Serving as a trusted thought partner who brings data, business insight, and practical solutions to inform people decisions
The role is fully remote but may require up to 10% travel to support departmental events such as Sales QBRs and Engineering Planning Onsites.
Requirements:
- 7–10 years of HR Business Partner experience supporting high-growth technology organizations
- Experience partnering with Engineering, Product, or other technical organizations through periods of rapid growth and change
- Strong business acumen with ability to translate business priorities into practical people strategies
- Proven ability to influence and coach leaders at all levels using data, sound judgment, and credibility
- Experience with organizational design, workforce planning, talent management, and performance management
- Strong judgment in employee relations and navigating complex people situations
- Ability to thrive in fast-paced, ambiguous environments with a builder mindset
- Experience supporting globally distributed teams across multiple time zones
- Deep knowledge of HR practices, employment law, and scalable people programs
