Senior Product Marketing Associate

mainstay; San Francisco (CA); Hybrid; USD 120,000 - 140,000; Full time

Job summary

Mainstay is looking for a Full Stack Senior Marketing Associate to bridge Revenue, Product, and Design, shaping messaging and building sales collateral across buyer segments. The hybrid role sits at our San Francisco HQ and collaborates with the CRO to drive growth with scalable content like decks, one-pagers, battlecards, and campaigns.

You will coordinate across teams to launch top-of-funnel initiatives, design campaigns, and manage collateral while aligning brand strategy and data-driven

Qualifications

• 5+ years in marketing supporting enterprise sales
• Broad experience across full marketing stack
• AI-first mentality to build leverage
• Excellent coordination and ability to work across teams
• Self-directed and comfortable operating with ambiguity

Responsibilities

• Messaging & positioning: distill value across lines and tailor to buyer segments
• Sales Collateral: decks, one-pagers, battlecards, case studies, onboarding
• Marketing Campaigns: design plays to fill funnel and track efficacy
• Event Marketing: optimize presence at industry events
• Brand Strategy / Data PR / Thought Leadership: maintain content calendar and share insights

Skills

Marketing strategy

Cross-functional collaboration

AI-first mindset

Project coordination

Ambiguity tolerance

Education

Bachelor's degree in Marketing or related field

Tools

HubSpot

Claude Design

Spreadsheets

Slides

Job description

About Mainstay

Mainstay is the leading market intelligence platform purpose built for buying, managing, and selling homes in the single family rental industry. As an AI native company, we turn complex data into clarity that helps the industry move forward with confidence. Founded within Opendoor, Mainstay launched as an independent company in 2024 and recently raised a Series A round led by Khosla Ventures.

Ready to shape the future of real estate with AI? Join Mainstay and help us redefine what’s possible in the single family rental space. If you thrive on solving complex problems and want to make a tangible impact in a fast-growing industry, we’d love to hear from you.

About the role

As our Full Stack Senior Marketing Associate, you'll be the link between the Revenue, Product, and Design teams. You'll shape how we articulate value across our product and service lines, keeping messaging consistent and tailored to each buyer segment. You'll build and maintain the sales collateral that equips reps to sell—decks, one-pagers, battlecards, and case studies. You'll also help design top-of-funnel campaigns, track their impact, and partner with the CRO on cross-functional projects across the business.

This is a hybrid position at our HQ in San Francisco, CA.

In this role you will

• Messaging & positioning: In partnership with Revenue Team leaders, distill how we articulate value across all our product and service lines — building the core narrative, tailoring the story to each buyer segment, and keeping messaging consistent and current as the business evolves

• Sales Collateral: Equip the Revenue Team to sell. Work with Product and Design teams to build and maintain pitch decks, one-pagers, battlecards, case studies, and objection-handling materials, and onboard sales on new messaging and product updates, across multiple evolving lines of business

• Marketing Campaigns: Design plays to fill the top of the sales funnel, track efficacy, and capture market product feedback with Revenue Team leadership.

• Event Marketing: Work with revenue team leaders to optimize our presence at industry events.

• Brand Strategy / Data PR / Thought Leadership: Coordinate with public-facing DSA, EPD, and executive team to maintain a content release calendar, and ensure that our best insights from our most proprietary data reach the right eyeballs.

• General: Partner with the CRO on cross-functional projects spanning Revenue, Product, and Operations, keeping initiatives coordinated and moving. Be a highly flexible corporate athlete who finds gaps in the process and fills them

What we’re looking for

• 5+ years in marketing in support of a high-touch, enterprise sales process

• Broad enough experience to have an educated opinion on as much of the full marketing stack as possible. Intellectual curiosity to quickly form one about the rest.

• A proven “AI-first” mentality - always looking to build systems to create leverage

• Excellent project coordination and the ability to make friends fast and work effectively across teams simultaneously

• Self-directed and comfortable operating with ambiguity; able to set direction rather than wait for it

Bonus points if you have:

• Experience as an early marketing hire at a growth-stage B2B company.

• Real estate, Finance, Fintech, Proptech, or data/SaaS background

• Well developed skills with HubSpot, Claude Design, Spreadsheets, Slides

Compensation

Base salary $120,000–$140,000, plus discretionary bonus, equity and benefits.

Mainstay Built on Trust

At Mainstay, trust is at the core of everything we do. We build trust with everyone -- from candidates to employees to partners. We believe in fairness and openness throughout our hiring process, evaluating candidates based on qualifications without regard to race, color, religion, national origin, age, gender, marital status, disability, veteran status, sexual orientation, gender identity, or any other protected status. Our privacy practices describe how we handle applicant information, you can find the policy details for California residents here.

We are committed to providing reasonable accommodations throughout our recruitment processes for candidates with disabilities, pregnancy, religious beliefs, or other reasons protected by applicable laws. If you require assistance or a reasonable accommodation, please contact us at [e-mail]