--- title: 'Staff People Partner, EPD at Horizon3 AI' canonical: 'https://feeny.ai/job/staff-people-partner-epd-horizon3-ai-united-states-gtbp62qd8pxs' type: 'job' last_seen: '2026-10-17' --- # Staff People Partner, EPD 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/5358ab89-d8b9-445d-b152-32cd021c0ec0 ## 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, savvy HR Business Partner who operates with conviction and urgency to help[Horizon3](http://horizon3.ai) scale through its next phase of growth. The People team is evolving quickly to support a high-growth business, and we are looking for teammates who are thoughtful, collaborative, and excited to build and scale programs that drive real business impact. As an HRBP, you will partner closely with leaders and employees across our Engineering, Product, Design, Security Research, and Data organizations to help scale high-performing teams during a period of rapid company growth. You will serve as a trusted advisor to leaders as they navigate organizational change, develop managers, build strong teams, and translate ambitious business goals into people strategies that enable execution. Working alongside a growing team of HRBPs and People Ops partners, you will help shape and execute HR strategy, bringing a balance of strategic thinking and hands-on execution. This role requires someone who is comfortable operating in ambiguity, building as they go, and helping leaders successfully scale organizations in a fast-moving environment. This role will be responsible for… - Partnering with Engineering, Product, Design, Security Research, and Data leaders to scale high-performing organizations while supporting delivery of an ambitious product roadmap. - Advising leaders on organizational design, workforce planning, and resourcing strategies to ensure teams are structured to meet evolving business and product priorities. - Coaching managers and leaders through the challenges of hypergrowth, including scaling teams, leading through change, developing talent, and building strong management practices. - Helping leaders build high-performing organizations through clear expectations, accountability, continuous feedback, and consistent performance standards. - Partnering with Engineering leadership and Finance on headcount planning, hiring prioritization, and organizational investments aligned to roadmap delivery and business goals. - Driving talent reviews, calibration, succession planning, and promotion discussions to build leadership bench strength and support long-term organizational growth. - Using organizational health, engagement, attrition, and workforce data to proactively identify risks, inform decisions, and improve team effectiveness. - Supporting leaders through organizational changes, ensuring teams remain aligned, engaged, and able to execute as the business scales. - Accelerating the effectiveness of new managers and leaders through coaching, onboarding, and ongoing leadership development. - Managing employee relations matters with sound judgment, balancing business objectives, employee experience, and organizational risk. - Partnering with People Operations to build scalable people programs, processes, and manager enablement that support a rapidly growing technical organization. - Serving as a trusted thought partner who brings data, business insight, and practical solutions to help leaders make informed people decisions and execute with confidence. ## What You’ll Bring - 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 the 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 a fast-paced, ambiguous environment with a builder mindset. - Experience supporting globally distributed teams across multiple time zones. - Deep knowledge of HR practices, employment law, and scalable people programs. 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: $169,000 - $200,000 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) ## Other roles at Horizon3 AI - [Senior Marketing Operations & Analytics Manager](https://feeny.ai/job/senior-marketing-operations-analytics-manager-horizon3-ai-united-states-f08jc3w9ckct) — United States - [Channel Sales Engineer, Singapore](https://feeny.ai/job/channel-sales-engineer-singapore-horizon3-ai-singapore-rj7r03x81qnp) — Singapore - [Federal Senior Product Analytics Engineer](https://feeny.ai/job/federal-senior-product-analytics-engineer-horizon3-ai-united-states-qngaeh9k8gzg) — United States - [Federal Senior Data Engineer](https://feeny.ai/job/federal-senior-data-engineer-horizon3-ai-united-states-91gynnx4jjbd) — United States - [Mid-Market Account Executive, Sydney](https://feeny.ai/job/mid-market-account-executive-sydney-horizon3-ai-australia-yzqrpweeaa29) — Australia - [Senior Sales Engineer, Australia](https://feeny.ai/job/senior-sales-engineer-australia-horizon3-ai-australia-22mcct8dm3vg) — Australia - [Mid-Market Account Executive, Melbourne](https://feeny.ai/job/mid-market-account-executive-melbourne-horizon3-ai-australia-nzd46xn576ba) — Australia - [Enterprise Account Executive, Melbourne](https://feeny.ai/job/enterprise-account-executive-melbourne-horizon3-ai-australia-hftnw9gqr4wr) — Australia - [Sales Development Representative, Sydney](https://feeny.ai/job/sales-development-representative-sydney-horizon3-ai-australia-bm8c1zx6qpmm) — Australia - [Director of IT Engineering](https://feeny.ai/job/director-of-it-engineering-horizon3-ai-united-states-bnf0x70ah2yg) — United States