FP&A Manager

Allen Control Systems•Austin, TX

About The Position

Allen Control Systems (ACS) is seeking an FP&A Manager to join their team. ACS is a defense startup developing autonomous gun turrets and is on a trajectory to $1B in annual revenue, shipping systems to SOCOM, the U.S. Army, and international customers. The FP&A Manager will be responsible for building the company's financial planning and reporting infrastructure, owning financial forecasting and budgeting processes, creating board and investor reporting packages, and serving as a direct analytical partner to the CFO. This role will initially be a senior individual contributor with the potential to grow into a people management position as the company scales.

Requirements

Has built FP&A infrastructure from scratch at a high-growth, capital-intensive company; not inherited a mature process, but designed and built one.
Strong financial modeling skills: three-statement modeling, scenario analysis, sensitivity analysis, and the ability to build models that non-finance leaders can use.
Direct experience building board and investor reporting packages; you understand what a sophisticated board wants to see and how to present financials with clarity and narrative.
Comfortable operating in a business with a complex revenue model: government contracts with milestone billing, multiple contract types, and a production schedule that drives the P&L.
Strong written communication and presentation skills; background at a fast-moving, engineering-driven company in defense, aerospace, hardware, or adjacent industries.
Comfortable using AI tools in daily financial modeling and analytical work; we will ask how in the interview.

Nice To Haves

Experience supporting a Series B or later fundraise including financial model preparation, data room management, and investor diligence.
Experience implementing or operating a modern FP&A planning tool such as Mosaic, Pigment, or Adaptive Planning.
Familiarity with government contract revenue recognition under ASC 606 and how contract type affects the P&L forecast.
Exposure to defense or aerospace program economics: bookings, backlog, funded vs. unfunded, and how they translate into forward revenue.
Has hired and developed FP&A talent before, even at small scale.

Responsibilities

Own the company’s annual operating plan and quarterly reforecast process end-to-end; maintain a rolling financial forecast that reflects actual contract award timing, production schedule changes, headcount plans, and capital deployment.
Build scenario models that answer questions such as: what happens to the P&L and balance sheet if a contract is delayed, if production accelerates, or if a new program is awarded mid-year.
Build the monthly and quarterly board reporting package from scratch including financial statements, KPIs, variance analysis, and forward outlook; support the CFO in board preparation, investor diligence, and future fundraising activity.
Build department-level budget accountability: work with functional leaders to set plans, track actuals, and deliver variance commentary that is actionable rather than just descriptive.
Develop the financial reporting cadence that keeps leadership informed without creating reporting overhead.
Hire and develop a small FP&A team over time, building the function to support a business growing rapidly in revenue, headcount, and complexity.