Senior Accountant

Are you ready to be a part of something groundbreaking? Mainstay is the leading market intelligence platform purpose-built for buying, managing, and selling homes in the single-family rental industry. We empower informed decision-making and unlock opportunities for owners, operators, and residents by aggregating and standardizing data from over 50 unique sources. Originally founded within Opendoor, Mainstay launched as an independent company in 2024, driven by our mission to simplify the complex and bring clarity and trust to the single-family rental ecosystem. Join us as we reshape the future of the industry!

We're looking for a Senior Accountant to join our fast-growing Property Technology (PropTech) SaaS company as our second accounting hire. This is a unique opportunity to step into a high-impact role at a pivotal moment in our growth. You’ll work closely with the Controller to build out scalable financial systems, support complex revenue recognition, and ensure our reporting is investor- and audit-ready.

In this role, you will

• Own core accounting operations, including GL maintenance, journal entries, reconciliations, and monthly close processes

• Navigate and apply SaaS revenue recognition (ASC 606) to ensure accurate financial reporting

• Collaborate cross-functionally with Sales, SalesOps, and Customer Success to support billing, contract review, and deferred revenue tracking

• Assist in the implementation and optimization of financial systems (NetSuite, SaaSOptics, Stripe, etc.) to support scale

• Prepare internal and external financial reports for leadership, investors, and auditors Support tax, audit, and compliance processes in a growing, multi-entity environment

• Help establish and document accounting policies and procedures, especially as we expand across markets and product lines

• Contribute to shaping a scalable and high-performing finance function as we grow

• Oversee an outsource service provider.

• 4–6 years of progressive accounting experience, ideally with a mix of public accounting and in-house roles

• Strong knowledge of and SaaS-specific accounting, including revenue recognition and cost capitalization.

• Experience with accounting systems (e.g., NetSuite, Intacct, or similar) and a love for process optimization

• Detail-oriented with strong analytical and problem-solving skills

• Strong communication skills—you know how to explain accounting to non-accountants

• Comfortable operating independently in a fast-paced, ambiguous environment

• CPA or working toward one

• Prior experience in the start-up, real estate or PropTech space

Mainstay’s compensation varies by U.S. geographic market to align with local labor costs. For most locations, the pay range for this position is $97,920- $129,600, while the base salary pay range for roles based in the SF Bay Area, Seattle, and New York City Metro area is $122,000 - $144,000. Pay is based on location, skills, and experience, and your recruiter will confirm the specific range for your job location. Please note that remote roles are available in all U.S. states except Hawaii, Alaska, Montana, and U.S. Territories.

Benefits Package (for full-time employees only):

• Paid time off and 12 paid holidays annually

• Medical, dental, and vision insurance

• Basic life insurance

• 401(k) retirement plan

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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 [email protected]