The Customer Service & Contracts Billing Specialist plays a critical dual role in ensuring seamless client experiences while maintaining accurate and timely contract management and billing processes. This position acts as a key liaison between clients, internal departments, and the finance team, combining strong communication skills with meticulous attention to detail. The ideal candidate thrives in a fast-paced environment, demonstrates a high level of professionalism, and excels in both service-oriented and administrative functions. This will be an on-site position at our Tomball, TX location and the ideal candidate will be in-person 5 days a week.Key Responsibilities:Customer Service Serve as the primary point of contact for customer inquiries via phone, email, and internal CRM systems.Resolve client issues efficiently and courteously, ensuring high levels of customer satisfaction.Collaborate with internal teams (e.g., sales, logistics, operations. engineering) to fulfill customer needs and follow up on open items.Maintain and update customer records with accurate contact, order, and service information.Support onboarding for new vendors on company processes and service expectations.Contracts & Billing Review, process, and manage customer contracts, change orders, and billing terms.Ensure contract accuracy and compliance with internal policies and regulatory standards.Prepare and issue invoices in accordance with contract terms, including milestone, progress, or recurring billing cycles.Track billing discrepancies, resolve disputes, and assist in collections follow-ups as needed.Maintain contract files and billing documentation in accordance with company standards.