Office Manager, Horizon3
$76-110k
+ Eligible for an equity package in the form of stock options
4-5 days a week in office
Autonomous security solutions
Job no longer available
Autonomous security solutions
201-500 employees
Job no longer available
$76-110k
+ Eligible for an equity package in the form of stock options
4-5 days a week in office
201-500 employees
Company mission
To help find and fix attack vectors before attackers can exploit them.
Role
Who you are
- As a remote first company, we require minimum 25Mbps consumer grade broadband connection
- The ideal candidate is highly organized, resourceful, and thrives in a dynamic, fast-paced environment.
- 2+ years of experience in office management, operations, or administrative roles, ideally in a fast-growing company
- Strong organizational skills with the ability to multitask and prioritize effectively
- Excellent written and verbal communication skills
- Tech-savvy with proficiency in tools like Google Workspace, Slack, Zoom, and expense/reporting systems
- Friendly, approachable, and proactive in anticipating needs
- Passion for creating engaging, inclusive workplace experiences
- Proven experience in event planning and execution, from small gatherings to large-scale company functions
What the job involves
- We are seeking an experienced and proactive Office Manager to join our team in San Francisco. This role is pivotal in ensuring our office runs smoothly, efficiently, and reflects our culture and values.
- You will be responsible for managing daily office operations, supporting leadership and staff, planning and managing events, and creating a welcoming workplace experience. You will be expected to be in the office typically 4-5 days per week.
- The nature of this role offers visibility from leaders across our growing organization and the chance to showcase ambition to executive leadership, meaning you have the chance to build this role based on your interests and strengths
- Gain hands-on experience across multiple areas — from operations and events to people/culture — giving you a well-rounded foundation for future career growth
- Bring creativity to life by designing events, initiatives, and office experiences that reflect and strengthen our culture
- Grow with a company that values curiosity, ownership, and continuous learning — we encourage you to stretch into projects that excite you
- Oversee day-to-day office operations, including supplies, vendors, mail, and facilities management
- Act as primary liaison with building management, contractors, and service providers
- Plan, coordinate, and manage company events such as networking mixers, holiday parties, all-hands celebrations, and milestone events
- Organize and execute team offsites and onsite gatherings, ensuring smooth logistics (venues, travel, catering, activities, and budgets)
- Collaborate with leadership and teams to design events that strengthen culture, collaboration, and connection
- Manage vendor relationships for event services, including caterers, venues, and entertainment
- Track budgets and ensure events are delivered on time, within scope, and aligned with company values
- Serve as a key point of contact for employees regarding office-related inquiries
- Partner with People/HR to promote company culture and employee engagement
- Manage our company receptionist service, Ruby - ensuring it’s always online and sending the messages to the correct person internally
- Partner with leadership on scheduling, travel coordination, and special projects
- Assist with expense reporting, budget tracking, and vendor payments
Our take
In an era marked by escalating cyber threats and data breaches, safeguarding digital assets has become a high priority across all industries. Amid this landscape, Horizon3.ai stands out as an autonomous security solution by addressing the critical need for robust cybersecurity.
At the heart of Horizon3.ai's mission is NodeZero™, a platform designed to elevate proactive security measures. Using this, customers can verify their security posture and identify potential vulnerabilities through self-service. This proactive approach to cybersecurity effectively thwarts potential exploits and ensures the integrity of their digital infrastructure.
With 2025 funding in hand, the company is poised to further its ambition to develop into an industry-leading cybersecurity company. The infusion of funds will be channelled towards expanding its partner network, refining its offerings and entering the US government market. Horizon3 aims to establish itself as a pivotal player in the evolving autonomous security landscape, a highly lucrative market valued at $80 billion.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
-8% employee growth in 12 months
Company
Funding (last 2 of 6 rounds)
Jun 2025
$100m
SERIES D
Aug 2023
$40m
SERIES C
Total funding: $187m
Company benefits
- Growth Opportunities: Be part of a dynamic and growing team with numerous career advancement opportunities
- Innovation-Driven Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking
- Flexible Work Environment: Enjoy the convenience and work-life balance that comes with remote work
- Inclusive and Diverse Team: We value diversity and promote an inclusive culture where everyone can thrive
Company HQ
SoMa, San Francisco, CA
Leadership
Snehal Antani
(Co-Founder & CEO)Graduated from the Rensselaer Polytechnic Institute with an MS in Computer Science. Previously worked at IBM as a Lead Architect, at GE Capital as the CIO of Distribution Finance and Splunk as the SVP & GM of Business Analytics & IoT.
Anthony Pillitiere
(Co-Founder)Graduated from the University of Maryland with a Bachelor's Degree in Computer Systems Networking and Telecommunications. Previously worked at the United States Air Force in multiple roles, including Deputy Chief Technology Officer.
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