Issac S

About Issac S

Results-driven Senior Billing Analyst with strong experience in Accounts Receivable (AR) billing, Cash Applications, and Collections, currently working in the infrastructure industry with AECOM. Experienced in managing end-to-end billing processes, ensuring accurate invoicing, revenue realization, and supporting organizational cash flow.Skilled in billing operations, payment application, and collections management, with a solid understanding of the complete Order-to-Cash (O2C) cycle. Proven ability to apply customer payments, reconcile accounts, follow up on outstanding invoices, and resolve discrepancies to improve collection efficiency and reduce aging balances.Currently involved in billing transition activities, including knowledge transfer, process migration, SOP documentation, and process stabilization, ensuring seamless transition and operational continuity. Proficient in using Oracle ERP for billing, cash application, account reconciliation, and financial operations.Strong collaborator with Project Managers, Finance teams, and clients to ensure billing accuracy and timely collections. Known for attention to detail, process improvement mindset, and ability to work in fast-paced environments.Passionate about improving billing and AR efficiency and growing into leadership roles within Billing, Accounts Receivable, and Revenue Operations.Core Competencies: • Accounts Receivable (AR) Billing• Cash Applications• Collections & Aging Management• Oracle ERP• Billing Transition & Process Migration• Order to Cash (O2C)• Invoice Management• Account Reconciliation• Revenue & Billing Operations• Process Improvement• Infrastructure Project Billing• Stakeholder Management

Experience

1. Senior Analyst

   AECOM

   Jan 2026 — Present · Bengaluru, IN

   Manage end-to-end Accounts Receivable billing process for infrastructure projects using Oracle ERPGenerate, review, and validate customer invoices ensuring accuracy and compliance with contract termsActively involved in billing transition, including knowledge transfer, process documentation, and process stabilizationCollaborate with Project Managers, Finance team to ensure timely and accurate billingSupport revenue realization and organizational cash flow through efficient billing operationsPerform account analysis and resolve billing discrepancies proactivelyEnsure compliance with internal controls, financial policies, and audit requirementsContribute to process improvements to enhance billing efficiency and accuracySupport Order-to-Cash (O2C) cycle and maintain billing records in Oracle system

Education

• G.T. Institute of Advanced Studies, 10/15, Magadi Road, Sunkadakatte, Vishwaneedum Post, Bangalore-560 091.

  Master of Business Administration - MBA, finance, hr