Senior Treasury Manager, Operations

OpenAI•San Francisco, CA

61d•Hybrid

About The Position

OpenAI Finance is responsible for ensuring the organization is set up for success in pursuit of its mission. OpenAI is building a world-class Treasury function to support our rapid global growth, and we’re hiring a Senior Treasury Operations Manager to run and scale our daily liquidity, payments, and settlement infrastructure. This is a hands-on role for someone who loves accuracy, controls, and operational excellence and wants to help build the core financial plumbing of one of the world’s most important AI organizations. You’ll be the execution backbone of Treasury at OpenAI. You will run our daily cash operations, payment flows, FX and fixed-income settlements, and investment transactions. You will maintain our banking and custody infrastructure, keep reconciliations clean, and operate our Treasury Management System (TMS). As OpenAI grows across products, geographies, and legal entities, you’ll help design scalable processes, strengthen controls, build documentation, and implement automation that makes Treasury faster, safer, and more reliable. This role reports to the Director of Treasury. This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

Requirements

8+ years of hands-on Treasury, payments operations, banking operations, or corporate finance operations experience.
Direct experience with payment execution (international wires, ACH, SWIFT) and FX trade settlements.
Experience with a Treasury Management System (Treasury4, Kyriba, GTreasury, or similar).
Exceptional attention to detail and a strong control mindset.
A documentation-first operator who builds durable, scalable processes.
Familiarity with tools such as Excel, PowerPoint, Bloomberg, FXall, Clearwater Analytics, and enterprise TMS solutions.
Experience collaborating cross-functionally with senior leadership and external financial partners.
Demonstrated success leading Treasury functions in high-growth, fast-paced environments.

Responsibilities

Build and manage banking and custody infrastructure, including account openings, signatories, entitlements, portal access, and periodic KYC updates.
Run daily cash operations: wires, ACH, SWIFT, FX settlements, fixed-income settlements, and investment subscriptions & redemptions.
Maintain and operate the Treasury Management System: bank feeds, workflows, templates, static data, and exception monitoring.
Build and maintain standard operating procedures, checklists, and cross-training to ensure Treasury operations are resilient and never single-threaded.
Support the design and operational implementation of cash pooling or an in-house banking structure.
Strengthen internal controls for payments, settlements, reconciliations, and user access; prepare clean audit evidence.
Identify and implement automation and workflow improvements that reduce manual effort and increase accuracy.