AR / Billing Operations Sr Manager

AR / Billing Operations Sr ManagerLocation: El Segundo, CA (Onsite with potential for hybrid after stabilization) Pay rate $56-60/hr W2 3+ months contract with potential to hireRole Summary: We are seeking a hands-on AR / Billing Operations Sr Manager to help stabilize and improve a high-volume, multi-system billing and collections environment. This is a roll-up-your-sleeves role focused on bringing structure, consistency, and accountability to day-to-day operations. The ideal candidate is highly organized, process-driven, and comfortable stepping into ambiguity to quickly establish order.Responsibilities:Implement and enforce daily and monthly billing checklists.Identify and resolve billing errors and inconsistencies.Drive execution of collections workflows and follow-ups.Track aging, past-due accounts, and escalation paths.Ensure consistent activity and visibility across the team.Support monthly AR and billing reconciliations across systems.Ensure reports are consistent, traceable, and repeatable.Build and document clear workflows and SOPs.Establish daily, weekly, and monthly checklists across billing and AR.Implement validation and control steps to improve accuracy.Drive adoption and enforce adherence across the team.Support implementation of daily and weekly reporting cadence.Track key metrics including: AR aging and past due balances, billing timeliness and accuracy, collections activity and follow-up.Improve visibility into team performance and operational health.Provide day-to-day structure and oversight for billing and AR activities.Help enforce deadlines, track tasks, and ensure follow-through.Support training and standardization across the team.Drive accountability for deadlines, deliverables, and performance expectations.Reinforce structured ways of working and reduce ad hoc execution.Qualifications:5-10 years in AR, billing, or accounting operations.Experience in high-volume or multi-system environments.Strong attention to detail and process orientation.Comfortable working in less structured environments and creating order.Hands-on, proactive, and execution-focused.Strong Excel skills (ability to work with large datasets and reconcile data).Experience stepping into environments that lack structure and building process from the ground up.This role is focused on execution and stabilization, with the opportunity to expand into a broader role depending on performance and business needs.