OSTTRA is seeking a highly motivated and commercially astute Financial Planning & Analysis (FP&A) Business Partner to join our London-based Finance department. Operating within a dynamic, Private Equity-backed environment, this role is situated on the commercial side of the organization, partnering directly with Product Owners and senior leadership.

The successful candidate will provide the analytical rigor and strategic financial insights required to inform critical business decisions. This position offers a unique opportunity for an ambitious professional to contribute significantly to the evolution of the broader FP&A function into a Best-in-Class operation. The post holder must be equipped to handle complex analytical requests, adapt rapidly to changing business needs, and deliver high-quality outputs under stringent deadlines.

Key Responsibilities

Strategic Business Partnering: Serve as the primary financial liaison for designa...