Staff People Partner, EPD at horizon3ai · LumiJobs

Responsibilities

We are looking for an experienced, savvy HR Business Partner who operates with conviction and urgency to help Horizon3 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.

Staff People Partner, EPD

Responsibilities

Benefits

Company

horizon3ai

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