Senior People Operations partnership for founder-led teams.
From first HR hire to organization of hundreds — we build the systems that hold people together when growth makes everything else feel fragile.
Rösalu Studio
Or start with a Foundations Audit:
10+ years senior · Teams from 6 to 450 · 0→1 builds in tech, life sciences, retail, manufacturing · 17% QoQ performance lift · 83% improvement in 90-day retention · 85% reduction in onboarding time · $1.2M in revenue impact
what we do
People OpErations Audit
Two-week diagnostic.
$4,500 fixed fee.
Fractional People Operations
Senior leadership on retainer.
$4,000/month.
Experiences
Corporate events and offsites.
$100K+ production budgets.
Rösalu Studio is led by marTyse Rosario, a senior People Operations practitioner with more than a decade of building People functions from the ground up — including as the first HR hire at a now-public marketplace company.
We work with founder-led teams between 10 and 100 people who deserve real People Ops partnership at the pace and scale of the business they actually have.
Martyse Rosario
Founder
Featured Engagement
Building HR from One Person to a Full Team A 0→1 People Operations build at a now-public marketplace company
Joined as the first HR employee when the team was about twenty people. Built the entire People function — HRIS, compliance, onboarding, contractor self-serve, multi-state coverage — and scaled it to support 150+ corporate employees and 1,000+ contractors across all 50 states.
Onboarding time cut 85% · Turnover improved 45% · Compliance scaled to all 50 states