Senior HRBP / Senior People Partner

Who We Need

As Rillet's first Senior HR Business Partner, you will be the strategic people partner to leaders across every function as we scale past 200 employees following our Series C. You have seen this stage before: you know what breaks between 150 and 500 people, and you know how to build ahead of it. You will partner with functional leaders on org design, performance, and team health, coach managers through hard conversations, and own the people decisions that require judgment and speed.

This is a builder role on a lean, systems-oriented team that automates aggressively. We expect the same instinct from you.

• We're looking for teammates within commutable distance of our NYC or San Francisco offices (or willing to relocate).
• Team members work in-office Tuesdays and Thursdays, plus one additional flexible day.
• Certain roles may require additional in-office time based on function.

What You'll Do

• Partner with functional leaders across the company on org design, headcount planning, leveling, and team structure.
• Coach managers on feedback, performance, team dynamics, and difficult conversations.
• Own employee relations end to end, including investigations, performance improvement, and separations, in coordination with counsel.
• Run performance and compensation cycles, from calibration through communication, in partnership with People Ops.
• Turn people data into decisions and build the playbooks that let the company scale.
• Use AI to automate the repeatable parts of People work so your time goes to judgment, coaching, and strategy.

Who We're Looking For

• You have 7+ years as an HRBP or People Partner in high-growth environments.
• You've scaled through the 150–500 range.
• You have deep employee relations experience and multi-state US employment fluency. International experience is a plus.
• You've run performance and compensation cycles yourself, not just supported them.
• You lead with speed, and you're direct with leaders, including when the answer is no.
• You're data-fluent and already use AI tools to automate your own work. At Rillet this is a requirement, not a bonus.
• You communicate with precision, whether it's a Slack message, a comp explanation, or a hard conversation.