Senior Manager, Recruiting Operations

Role Description

At Horizon3.ai, we're building a world-class team to solve some of the hardest problems in cybersecurity. As we continue to scale globally, our People team plays a critical role in ensuring every employee has an exceptional experience—from onboarding through growth and development.

We're looking for a People Operations Manager who thrives in high-growth environments and enjoys building scalable, efficient, and employee-centric programs. This person will own and continuously improve the systems, processes, and operations that power our People function, helping us create an experience that enables employees to do their best work while supporting the company's rapid growth.

What You'll Own

• Vendor Management
  • Own the recruiting tech stack end to end — ATS (Ashby), interview intelligence (BrightHire), evaluate sourcing and scheduling tools — including configuration, integrations, and data integrity with a deep partnership with People Ops for approvals.
  • Evaluate, recommend, and implement new tooling as needs evolve; build the business case and own the rollout, not just the research.
  • Serve as the technical escalation point for the recruiting team on systems issues; partner with IT/Security on access, SSO, and data governance.
  • Drive Recruiting efficiency across all tools leveraging AI.
  • Evaluate the recruiting vendor portfolio (ATS, assessment tools, sourcing platforms, job boards) and bring forward recommendations on selection, renewal, and termination; final decisions and budget sign-off sit with the Head of Recruiting.
  • Track vendor spend against usage and ROI, and build the business case when a tool should be consolidated or cut.
• Process & Scale
  • Audit existing recruiting workflows (requisition intake, interview scheduling, offer approvals, reporting) and redesign for scale, not just for today's headcount.
  • Build and maintain recruiting metrics and reporting (pipeline health, time-to-fill, funnel conversion, cost-per-hire) that leadership can actually act on.
  • Build and maintain meaningful dashboards for a variety of audiences across the business.
  • Document and standardize processes so they're resilient to team growth and turnover — not dependent on any one person's tribal knowledge.
  • Design workflows with an eye toward future federal/cleared hiring requirements, even while current scope is commercial-only.
• Team Leadership
  • Hire, manage, coach, and develop a high-performing team of Recruiting Coordinators.
  • Set clear performance expectations, establish career development plans, and foster a culture of operational excellence.
  • Ensure consistent scheduling coverage across global time zones and hiring teams.
  • Monitor team performance using service-level metrics and candidate experience data.
• Candidate Experience
  • Own the end-to-end interview scheduling experience, ensuring interviews are coordinated accurately and efficiently.
  • Drive initiatives that improve the candidate experience throughout the hiring process.
  • Ensure candidates, interviewers, and hiring managers receive timely communication and support.
• Cross-Functional Partnership
  • Partner closely with Recruiters, Hiring Managers, HR, IT, Legal, and People Operations.
  • Support recruiting initiatives such as interview training, hiring events, onboarding process improvements, and employer branding efforts.
  • Help ensure recruiting processes remain compliant with applicable employment laws and company policies.

What Success Looks Like

• First 90 days: complete a full audit of current tools/vendor contracts and deliver a consolidation or renewal recommendation.
• Automated reporting to support Hiring Manager and Recruiter partnership.
• CPO reporting and visibility (examples include: conversion rates, recruiter performance, manager and interviewer capacity).
• Automation and Process Improvements - how can we do more, even better than we’re doing today.
• Ongoing: Reduction in time to fill, increase in candidate experience, better alignment between hiring managers and the business and stakeholders.
• Leveraging AI tools to augment and make recruiter workflows faster and more efficiently.

Qualifications

• 8-10+ years in recruiting operations, people analytics, or a hybrid ops/recruiting role, with experience managing vendor relationships and supporting contract negotiations.
• Working knowledge of an ATS (Ashby a plus) and interview intelligence platforms, with the ability to own day-to-day administration and troubleshooting.
• Experience contributing to or leading a process improvement that made a recruiting workflow more efficient or scalable.
• Able to pull together a clear, data-backed recommendation when a tool should be consolidated or cut.
• Experience in a security, defense, or other dual commercial/federal environment is a plus, but not required for this role's current scope.

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.

• Base salary range: $170,100 - $210,000 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.

Benefits

• 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.

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

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