The Senior Manager provides day-to-day leadership for Commercial Operations team members, develops team capability, supports complex and high-priority opportunities, and partners closely with Sales, LTSA, Product Line Operations, Service Operations, Engineering, Finance, Legal, and customers to deliver competitive, accurate, and executable proposals. This role is accountable for ensuring high-quality, timely proposal support for Power Generation Services transactional and Long Term Service Agreement opportunities while strengthening commercial governance, pricing discipline, cross-functional coordination, and execution handoff.