Manager, Purchasing

Who We Are

Core Spaces (Core) is more than a real estate company, it’s a people company. Where building relationships is just as important as building properties. From researchers and architects to designers and operators, Core is made up of risk takers and dreamers who are on a mission to invent the future of living. Our six cultural values guide us every day and we strive to live them in everything we do:
PUSH (Invent Better Places to Live),
GRIT (We Got This),
LIFT (Help Each Other Win),
SHINE (Bring Your Full Self),
UPHOLD (Never Break Trust),
GROW (Always Get Better). Everything Core does stems from this culture of collaboration and innovation, and the drive to constantly improve the resident experience. This unique approach has led to creating spaces and services that are redefining the way people live.

Treehouse Builders, in partnership with Core Spaces, is a premier residential construction company focused on delivering innovative and inspirational build-to-rent communities. Differentiated by a culture of collaboration rooted in production homebuilding, Treehouse stands out by delivering modern amenities and sustainability features in every community. Treehouse Builders has attracted acclaimed talent in the industry, committed to building the future of living. For more information, check us out at

• A culture that provides you with a sense of belonging
• Hybrid and remote work options to promote work-life balance
• Competitive pay that values your contributions
• Annual incentive to reward your achievements
• Paid unlimited PTO to disconnect or celebrate life milestones
• Paid 14+ holidays, including your birthday, to disconnect and celebrate
• Paid Parental Leave that begins after 90 days
• Paid volunteer time off to give back to your community
• Monthly workshop weeks; fewer meetings & more collaboration
• Robust health plan options that begin within at least 30 days of your employment
• Monthly phone reimbursement
• Wellness allowance and perks, including a yearly subscription to a meditation app
• An environment that provides you a voice to share your perspectives
• Employee Assistance Program (EAP) for access to confidential support services
• Company retirement options including 401(k) + matching & Roth account option

The Purchasing Manager is responsible for leading market-level trade partner sourcing, contracting, and cost control for Treehouse Builders’ single-family build-to-rent (BTR) communities. This role ensures that all purchasing operations—from early product definition through vertical construction and turnover—are executed with pricing discipline, scope clarity, and schedule reliability.

As a key member of the Purchasing leadership team, the Purchasing Manager partners closely with the Director of Purchasing, Construction leadership, and Centralized Services to establish base house costs, manage unit economics, and drive continuous cost and performance improvement across assigned communities. This role directly influences project feasibility, execution predictability, and long‑term portfolio performance.

Cost Ownership & Purchasing Strategy

• Establish, manage, and continuously refine base house costs by trade and cost category for assigned BTR communities.
• Own unit cost accuracy within Brix, including take‑offs, pricing updates, and release schedules tied to phased starts.
• Monitor cost performance through variance reporting, identifying trends, and partnering with Construction and Purchasing leadership to resolve recurring or preventable issues.
• Identify, evaluate, and implement cost‑saving strategies, value‑engineering opportunities, and product standardization initiatives aligned with BTR scalability.
• Support strategic purchasing planning and system improvements across the division in coordination with the Director of Purchasing.

Trade Partner Sourcing & Performance Management

• Recruit, prequalify, and contract high‑performing trade partners capable of supporting repeatable BTR product at scale.
• Ensure competitive bidding is consistently executed across all trade categories, maintaining pricing transparency and market competitiveness.
• Lead trade partner…