Get to Know Us

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.

About the Role

Horizon3.ai is growing fast and so is the complexity of running a global team. We’re looking for someone who excels at both strategic thinking and execution. This person will play a key role in building a strong foundation for international operations that scales with the business.

Based in our beautiful Amsterdam office (EMEA HQ), you’ll be responsible for our growing international footprint including entity launches, compliance programs, employee lifecycle automation and benefits consistency across every market we operate in. If you love turning ambiguity into process, process into automation, and automation into scale, this role is for you.

What You’ll Do

Global People Operations & Systems

Own the international employee lifecycle end-to-end including onboarding, offboarding, and job changes, with a relentless focus on consistency, compliance, and a great employee experience.
Design and automate core workflows across our people systems (Rippling, Deel, and adjacent tools), eliminating manual work and building infrastructure that scales.
Standardize international hiring operations: localized offer letter templates, visas, background check processes, and approval workflows
Leverage AI tools and automation platforms to accelerate documentation, policy creation, and employee-facing resources.
Develop global policies for relocations, international mobility, and more.
Own global employee handbooks and policy documentation for all entity countries — current, compliant, and actually readable.

International Expansion & Entity Operations

Project manage new country entries and entity launches.
Build and own a scalable expansion playbook that captures statutory requirements, benefits norms, and operational obligations for every market we enter.
Maintain current country-level overviews across our global footprint so the People team and our key internal partners (Payroll, Finance, IT, etc.) always know exactly what’s required, where.
Monitor regulatory changes proactively across our international markets and assess their impact on our programs before they become problems.

Benefits and Workplace

Partner with our Total Rewards team to maintain a consistent global benefits and leave infrastructure including parental leaves, pensions/retirement, and statutory entitlements.
Partner with the broader People team on international compensation frameworks and total rewards positioning.
Serve as the operational owner for our Amsterdam office: workplace experience, vendor relationships, facilities,

What You’ll Bring

5+ years in international People Operations, HR Operations, or Global Mobility with real, hands-on experience across multiple countries.
Direct experience with entity launches, EOR management, and new country expansion. You’ve done it before and know what to watch out for.
Comfort configuring and automating workflows in HRIS and EOR platforms (Rippling and Deel experience a strong plus).
Practical experience using AI and automation tools to scale People Ops work not just familiarity, but actual execution.
Strong knowledge of Dutch employment law and the Amsterdam regulatory environment; broad familiarity with EMEA and APJ markets.
Fluent English. Other languages are a bonus.
You build things that work, document them so others can use them, and always ask how it could be faster or more automated next time.

What Sets You Apart

You’ve built international people operations programs from scratch, not just maintained something already in place.
You think in systems: you see a manual process and immediately start designing its replacement.
You’re equally comfortable writing a policy, configuring a workflow, and presenting a recommendation to leadership.

Why Join Us?

Make Your Mark: You’ll have the opportunity to influence and shape HR practices in one of our most important international hubs.
Global Impact, Local Expertise: Be the voice of Dutch and European HR while contributing to an integrated, worldwide People strategy.
Trusted Advisor Role: Gain visibility across the business as a go-to partner for leaders.
Collaborative Culture: Join a supportive, innovative, and globally connected People team that prioritizes employee experience.
Competitive Rewards: Enjoy a compensation and benefits package tailored to the Dutch market.

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.

Senior People Operations Lead (International)