Sr. Product Manager - API Strategy and Customer Identity

Who We Are Addepar is a global data and AI platform empowering investment professionals to turn complex financial information into actionable intelligence. Addepar unifies portfolio, market and client data in a total portfolio view and delivers AI-powered insights within investment and client workflows. More than 1,400 firms in nearly 60 countries use Addepar to manage and advise on nearly $9 trillion in assets. Its open platform integrates with nearly 650 software, data and consulting partners to power end-to-end investment operations across firms of all sizes and complexity. Addepar supports clients worldwide with offices in New York City, Salt Lake City, London, Edinburgh, Pune, Dubai, Geneva and São Paulo. The Role We are currently seeking a Senior Product Manager to join our organisation, specifically as the lead product contributor shaping our API strategy and CIAM (Customer Identity Access Management) experience. As the Product Manager in this critical domain, you will treat our developer ecosystem and identity infrastructure as flagship products. You will be responsible for defining the vision, roadmap, and execution for both our developer platform and how users securely access our ecosystem. You will act as the foundational enabler: building robust API infrastructure, seamless developer tools, and scalable CIAM solutions that empower Addepar employees, clients, and third-party developers. You will bridge the gap between complex backend systems, internal stakeholders, and the developer community, establishing robust standards for API design, platform scalability, and secure, frictionless identity management. Applicants must have, and maintain, the right to work in the United Kingdom from the first day of employment. Please note that visa sponsorship is not available for this role. What You’ll Do Own the API Identity Lifecycle: Manage the core product roadmap for both Addepar's APIs and our CIAM platform. Engage with key stakeholders across the organization to guide endpoints and identity features from initial design and rollout through versioning, scaling, and eventual deprecation. Drive the CIAM Strategy: Partner with engineering to manage and evolve our Customer Identity and Access Management systems. You will lead the charge on secure authentication, authorization (RBAC), seamless SSO integrations, and user lifecycle management. Navigate Complex Stakeholder Needs: Work closely with engineering partners to manage requirements from diverse internal teams and external clients regarding user access, identity federation, and platform security. You will act as the primary product voice in these critical CIAM conversations. Establish Platform Standards: Partner with RD leaders to define and enforce governance for both API design and access management, ensuring consistency, high performance, and security across all public-facing and internal touchpoints. Champion Developer Experience (DX): Build and maintain a world-class experience, complete with comprehensive documentation, interactive sandboxes, SDKs, and intuitive self-serve onboarding flows for engineers. Empower Internal External Builders: Serve as the platform layer for our RD teams and external developers. You will ensure the underlying APIs, authentication protocols (OAuth, OIDC), and webhook infrastructures they rely on are robust, secure, and easy to consume. Prioritize Ruthlessly: Balance immediate stability improvements with long-term strategic architectural changes across both APIs and CIAM. You will need to effectively set expectations with stakeholders and keep the team focused on foundational platform commitments. Example Projects Unified API Governance Modernization: Lead the strategy for standardizing APIs across different Addepar services. You will drive the development of tools, practices, and processes that ensure all new endpoints adhere to strict design, security, and performance standards. Next-Generation CIAM Access Control: ... (truncated, view full listing at source)