HR Business Partner
About The Position
We're looking for our first HR Business Partner to build the foundation of our people programs as Cartesia scales. This is a unique opportunity to shape the employee experience from the ground up at a fast-growing Series A AI startup, working directly with leadership to define what exceptional people operations look like. You'll be the trusted advisor to our teams, balancing strategic thinking with hands-on execution across the full employee lifecycle. In this role, you'll own everything from employee relations and organizational design to talent development and learning programs. You'll have the autonomy to build systems and processes that scale while maintaining the culture and values that make Cartesia a great place to work.
Requirements
- 7+ years as an HRBP, with at least 2 years at a high-growth startup or tech company
- Deep expertise in employee relations, with a track record of handling sensitive situations with discretion
- Proven ability to design organizational structures that support rapid growth
- Experience building talent and learning programs from scratch, including career ladders, manager training, and onboarding
- Strong business acumen and comfort with ambiguity; ability to roll up your sleeves and get things done without a playbook
- Exceptional judgment and communication skills across all levels of the organization
Nice To Haves
- Background working in AI/ML or deeply technical environments
- Experience scaling a company through key growth milestones (50→200+ employees)
- Familiarity with modern People tools and systems (HRIS, ATS, engagement platforms)
Responsibilities
- Serve as a trusted advisor to leadership on organizational health, team dynamics, and people strategy
- Provide confidential employee support throughout the full employee lifecycle, from onboarding through career growth to offboarding
- Partner with recruiting to ensure that talent strategies align with long-term organizational goals
- Build performance management processes, and development programs that help employees grow
- Own compensation planning and strategy, including benchmarking, equity, and promotion cycles
- Design and implement programs focused on developing our internal company culture
- Establish HR policies, workflows, and documentation that scale with the business while staying lightweight and founder-friendly
Benefits
- Lunch, dinner and snacks at the office
- Fully covered medical, dental, and vision insurance for employees
- 401(k)
- Relocation and immigration support
- Your own personal Yoshi
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
Number of Employees
51-100 employees
