---
title: 'Senior People Partner, G&A at Horizon3 AI'
canonical: 'https://feeny.ai/job/senior-people-partner-g-a-horizon3-ai-united-states-22dd00wkmtbb'
type: 'job'
last_seen: '2026-10-17'
---

# Senior People Partner, G&A at Horizon3 AI

- **Company:** [Horizon3 AI](https://feeny.ai/companies/horizon3-ai)
- **Location:** United States
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-29
- **Last confirmed live:** 2026-10-17
- **Apply:** https://jobs.ashbyhq.com/horizon3ai/55b5e9e9-de8d-4ee3-b90d-a0ea590711fd

## Job description

Get to Know Us [Horizon3](http://Horizon3.ai) is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, 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 IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs. We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and 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.

## What You’ll Do

We are looking for an experienced, strategic HR Business Partner who operates with conviction and urgency to help [Horizon3](http://Horizon3.ai) scale through its next phase of growth. You will partner with leaders across corporate functions such as Finance, Legal, and IT/Security to build the organizational structure, leadership capability, and talent strategies needed to support a rapidly growing global business. This role requires proven experience supporting high-velocity growth and leading organizational design and workforce planning. You understand how corporate functions evolve as a business scales and can help leaders anticipate capability gaps, clarify accountability, and sequence investments to balance growth, efficiency, and operational discipline. Working alongside a growing team of HRBPs and People Ops partners, you will translate business priorities into practical people strategies and drive execution. You bring the judgment to advise senior executives, the confidence to challenge assumptions, and the willingness to work hands-on as we build.

This role will be responsible for…

- Serving as a trusted advisor to G&A executives, translating global expansion priorities into organizational structures, leadership capabilities, and talent plans that enable the business to scale.
- Leading organizational design for global corporate functions, clarifying what should be centralized, regional, or local and establishing clear accountability across teams and geographies.
- Partnering with Finance, Legal, IT/Security, and People Ops to anticipate the capabilities and staffing required for new market entry, entity expansion, and increasing international complexity.
- Building workforce plans across growth scenarios, prioritizing critical roles, evaluating talent locations, and sequencing hiring to establish capacity ahead of business needs.
- Helping leaders evolve G&A operating models to support a larger global footprint, strengthening cross-functional coordination, regional coverage, and service delivery.
- Coaching executives and managers on leading globally distributed teams, delegating effectively, and maintaining consistent performance expectations across regions.
- Guiding organizational change as functions expand, including new leadership layers, regional responsibilities, reporting relationships, and transitions in ownership.
- Leading talent reviews and succession planning to strengthen the global leadership bench, reduce dependency on key individuals, and develop talent for broader scope.
- Driving performance management grounded in role expectations and business impact, ensuring standards are applied consistently and thoughtfully across geographies.
- Using workforce, retention, engagement, and performance data to surface capacity constraints and organizational risks early and guide investment decisions.
- Partnering with People Ops, Legal, and regional experts to navigate employee relations, compensation, and local employment considerations as the company enters and scales in new markets.
- Partnering with Talent Development and People Ops to build onboarding and manager development programs that accelerate productivity and strengthen collaboration across a growing global organization.

## What You’ll Bring

- 7–10+ years of progressive HR experience, including substantial HRBP experience in a technology company through high-velocity growth and global expansion.
- Demonstrated success helping corporate functions build the talent, leadership, and organizational capacity needed to support new markets and a growing international footprint.
- Strong organizational design experience, including defining global versus regional responsibilities, clarifying decision-making ownership, and evolving structures as business complexity increases.
- Experience advising CFOs and other senior functional leaders, with the business acumen and confidence to challenge assumptions, navigate tradeoffs, and influence decisions.
- Strong coaching and change management skills, with experience guiding leaders through international team growth, leadership transitions, and shifts in organizational responsibilities.
- A track record of strengthening performance, succession planning, and leadership development.
- The ability to turn workforce and business data into clear recommendations, identify risks early, and move between strategic advising and hands-on execution.
- Sound judgment, comfort with ambiguity, and a bias for action, paired with the candor, discretion, and follow-through needed to earn trust across cultures and time zones.

Travel Encouraged We are a fully remote company, and this job may require up to 10% of travel to be successful. We encourage our people partners to join the departments they support at things like Sales QBRs, Engineering Planning Onsites, etc.

Perks of [Horizon3](http://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:

- Base salary range: $142,000 - $185,000 annually. 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, 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.

## About Horizon3 AI

## Company Overview
- **One-liner**: Horizon3.ai provides an autonomous penetration testing platform (NodeZero) that safely hacks production environments to identify and fix exploitable attack paths using AI.
- **Entity Type**: Private (Series D – latest funding round in 2026, led by Prosperity7 Ventures)
- **Headquarters**: San Francisco, California, United States (447 Battery Street, San Francisco, CA 94111)
- **Founded**: 2019
- **Founders**: Snehal Antani (Co-Founder & CEO); founded by a mix of US Special Operations, US National Security, and cybersecurity industry veterans

## Core Business
- **Primary industry**: Cybersecurity (autonomous penetration testing, vulnerability management, continuous security validation)
- **Target customers**: B2B – large enterprises, Fortune 100, government agencies (NSA, CISA), healthcare providers, financial services, manufacturing, education, public sector
- **Mission**: “Turn the map around” – using the attacker’s perspective to help enterprises prioritize defensive efforts. The company aims to shift the advantage from attackers to defenders by fighting AI with AI.

## Products & Services
- **[NodeZero®](https://horizon3.ai/)**: Autonomous penetration testing SaaS platform. Safely runs real attack techniques in production environments (no agents, no disruption). Discovers and chains exploitable vulnerabilities, misconfigurations, harvested credentials, and dangerous defaults across external, identity, on-prem, cloud, and Kubernetes attack surfaces. Also includes Active Directory password auditing and phishing impact testing. Continuously validates fixes and repeats autonomously.

## Market Standing
- **Valuation**: Not publicly disclosed
- **Key Metrics**: 
  - Annual Revenue: **$35.5M** (per LinkedIn)
  - Total Funding: **$187M** (per LinkedIn) / **$181M** (per CB Insights – conflicting reports; both cited)
  - **225,000+** production-safe tests completed
  - **5,000+** customers
- **Notable Investors/Partners**: 
  - SignalFire (lead in Seed, Series A, Series B)
  - Craft Ventures (lead Series C)
  - Prosperity7 Ventures (lead Series D – 2026)
- **Growth Signals**:
  - Ranked **#1 in Security** on the 2025 Inc. 5000 list
  - **#3 overall** on the 2025 Deloitte Technology Fast 500
  - Fast Company’s **Most Innovative Companies** (2026) – #1 in Security
  - Named to the **Fortune Cyber 60** (2023 & 2025)
  - Two-time **Black Unicorn Award** winner
  - Headcount grew **115.5% YoY** to 341 employees (LinkedIn)
  - Active job postings up **168.2% YoY**; operates in 14 countries

## Competitive Advantages
- **AI-driven autonomous testing** that learns from hundreds of thousands of tests and uses the right AI (ML, GenAI) for each problem – delivers evidence-based results with **zero hallucinations**.
- **Production-safe** – zero downtime across all production tests, trusted by the world’s most sensitive high-security environments (NSA, CISA, Fortune 10, major healthcare).
- **No agents required** – fully self-service SaaS, safe to run continuously.
- **Real attack techniques** – not a scanner; shows actual attacker paths and impact.
- **Rapid verification** – instantly confirms fixes and repeats the cycle, enabling a continuous validation loop.

## Strategic Focus
- **Continuous validation** – driving a loop of test-fix-verify-repeat autonomously.
- **Fighting AI with AI** – building NodeZero to operate at machine speed against AI-powered attacks.
- **Global expansion** – already in 14 countries, with active hiring in EMEA, APAC, and the Americas.
- **Scaling the team** – 59 active job postings (as of mid-2026), with emphasis on engineering, sales, and customer success roles.

## Why Work Here
- **Culture**: Rated **5.0/5.0 on LinkedIn** (76 reviews) with perfect scores for Culture (5.0), Career (4.9), Compensation (4.7), and Work-Life (4.6). Described as a “kick-ass organization hell bent on disrupting an industry” with a team of “motivated learn-it-alls.”
- **Work Policy**: Remote-friendly (most roles listed as remote, HQ in San Francisco, CA). Offers flexibility across time zones.
- **Notable Perks** (from Built In and LinkedIn):
  - Comprehensive healthcare (medical, dental, vision, FSA)
  - Life insurance, disability insurance
  - 401(k) with company matching
  - Equity and employee stock purchase plan
  - Generous parental leave and family medical leave
  - Performance bonuses
  - Job training, conferences, and customized development tracks
  - Promotion policies and career growth support
- **Engineering Culture**: Built by US Special Operations and National Security veterans. Emphasis on high autonomy, real-world impact, and cutting-edge AI/security work. “If you want to be part of a kick-ass organization hell bent on disrupting an industry and keeping attackers at bay, let’s talk.”

## Sources
1. [horizon3.ai – Homepage](https://horizon3.ai/)
2. [horizon3.ai – About/Team](https://horizon3.ai/about-us/)
3. [LinkedIn – Horizon3.ai Company Page](https://www.linkedin.com/company/horizon3ai)
4. [Built In – Horizon3.ai Careers & Perks](https://builtin.com/company/horizon3ai)
5. [CB Insights – Horizon3.ai Profile](https://www.cbinsights.com/company/horizon-3-ai)

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