Sarah Beattie

About

Founder & product leader with 10+ years building 0→1 products and nearly 5 years as a Product Manager at Meta, primarily in Integrity (Trust & Safety). Currently founding MARTHA AI (bias detection for AI systems) and taking on select fractional engagements in product strategy, Trust & Safety, and AI product development for early-stage and AI-first companies.

Experience

• Founder & CEO · MARTHA AI2025

  Building bias detection tooling for AI systems across three layers: DataScan (training data), ModelScan (model baselines), and PromptScan (runtime prompt-level interception). Designed inference-agnostic architecture allowing customers to use their own model/API keys for audit, eliminating conflict-of-interest risk when auditing frontier models. Defining ICP and go-to-market strategy focused on Trust & Safety and platform integrity community.

• Independent Product Development & Consulting (Fractional engagement) · Independent Product Development & Consulting2025

  Receipt-splitter iOS app | Designed, built and shipped a camera-first OCR bill-splitting app with no-account SMS sharing and RevenueCat paywall. Built on Expo + React Native, EAS Build, TestFlight. The 611 | Building a full-stack hyper-local community app (Clerk auth, Supabase backend). Led scaling readiness analysis to 10k users and defined a comprehensive security audit across codebase, auth, and third-party integrations. Arca | Designed brand identity and built marketing site for medical-grade portable temperature-controlled devices.

• Product Manager · Meta (prev. Central Integrity & Crisis Response)04-01-2020 – 12-31-2024

  Owned Meta's music & copyright protection core product, leading regulatory readiness and product growth. Instituted Integrity-wide self-service tooling strategy to accelerate crisis response, reducing reliance on engineering capacity and minimizing disruptive outreach to product teams. Drove proactive detection initiative that generated 7x classifier training data in month one, enabling detection in perpetuity to prevent crisis repetition. Led internet safety exchange with global tech leaders and NGOs on child abuse and terrorism. Mentored PMs on career path, strategy and framework development, roadmapping, and team building.

• Product Manager · Upside Business Travel06-01-2019 – 03-31-2020

  Led technical platform transformation strategy; defined and managed proof of concept through beta launch. Achieved sustained strategy alignment with Flight Centre (largest shareholder); presented to their global CEO, General Counsel, and executive team.

• Product Manager (AppSmart); Sr. Launch Manager; Strategic Alliances Associate · AppDirect04-01-2015 – 06-30-2019

  Overhauled cross-functional platform launch process; reduced marketplace launch time from 9 months to <10 days. Developed platform strategy for marquee partners (IBM, Microsoft, TrendMicro, Softbank) to scale their cloud services distribution globally.

• Planning & Analytics Manager, Digital Advertising · The Wall Street Journal04-01-2013 – 04-30-2015

Education

• Claremont McKenna CollegeB.A., English Literature (Honors); GPA 3.6
• Tuck School of Business at DartmouthSummer Bridge Program, Managerial economics, strategy, finance, modeling
• General AssemblyFront-End Web Development, Front-End Web Development (HTML, CSS, JavaScript, jQuery, responsive design)
• MITxCoursework (MITx), Intro to CS & Programming (Python)
• Stanford UniversityCoursework (Stanford CS103), CS103 Mathematical Foundations of Computing
• Dartmouth CollegeCoursework (Audit), CS1 (audit)

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