Billing Analyst I - MEX

Colonial Group; Monterrey; On-site; MXN 240,000 - 360,000; Full time

Job summary

WWEX Group in Monterrey is seeking a Billing Analyst Specialist to ensure accurate, timely invoicing and compliance with SLAs. You will validate invoices, resolve discrepancies, and maintain audit-ready records while collaborating with Sales, Customer Support, and Finance.

The role requires 1–2 years in billing or accounts receivable, a finance or accounting degree, strong analytical skills, and meticulous attention to detail.

Qualifications

• Bachelor's degree in finance, accounting, or related field required.
• 1–2 years of billing, accounts receivable, or financial operations experience preferred.
• Strong analytical and reconciliation skills; ability to maintain confidentiality.

Responsibilities

• Process and validate customer invoices, ensuring accuracy and contractual compliance.
• Investigate and resolve billing discrepancies, including rate errors and missing charges.
• Maintain accurate billing records for audit and compliance purposes.
• Coordinate with Sales, Customer Support, and Finance to clarify billing issues and obtain approvals.
• Respond to customer inquiries regarding invoices and billing adjustments promptly.
• Monitor billing queues to meet SLAs and monthly close deadlines.
• Assist in testing and providing feedback for billing system enhancements.
• Identify process inefficiencies and recommend workflow improvements.
• Support month-end and year-end billing activities as required.
• Attend monthly business unit meetings to review updates.

Skills

Billing processes

ERP systems

Discrepancy analysis

Attention to detail

Workflow management

Communication

Adaptability

Education

Bachelor's degree in finance/accounting

Tools

Salesforce

Oracle

SAP

Job description

PURPOSE

The Billing Analyst Specialist is responsible for ensuring accurate and timely processing of customer billing within WWEX Group’s Financial Operations Shared Services Center. This role focuses on validating invoices, resolving billing discrepancies, and maintaining compliance with internal controls and service level agreements (SLAs). The Billing Analyst Specialist works closely with internal teams and external partners to deliver high-quality billing services and support continuous improvement initiatives.

ESSENTIAL DUTIES & RESPONSIBILITIES

• Process and validate customer invoices, ensuring accuracy and adherence to contractual terms.
• Investigate and resolve billing discrepancies, including rate errors, missing charges, and incorrect account details.
• Maintain accurate billing records and documentation for audit and compliance purposes.
• Communicate with internal departments (Sales, Customer Support, Finance) to clarify billing issues and obtain necessary approvals.
• Respond to customer inquiries regarding invoices and billing adjustments in a timely and professional manner.
• Monitor billing queues and prioritize tasks to meet SLAs and monthly closing deadlines.
• Assist in testing and providing feedback for billing system enhancements.
• Identify process inefficiencies and recommend improvements to workflows and documentation.
• Support month-end and year-end billing activities as required.
• Attend monthly meetings with the business unit to review updates and improvements.

REQUIRED KNOWLEDGE/SKILLS/ABILITIES

• Strong understanding of billing processes and financial operations.
• Familiarity with ERP systems (Salesforce, Oracle, SAP) and billing tools.
• Ability to analyze discrepancies and recommend corrective actions.
• High attention to detail and organizational skills.
• Comfortable working with structured workflows and performance metrics.
• Ability to adapt to new systems and contribute to process improvements.
• Effective communication skills for working across departments and with external stakeholders.

QUALIFICATIONS

• Bachelor’s degree in finance, accounting, or related field preferred.
• Minimum of 1–2 years of experience in billing, accounts receivable, or financial operations.
• Strong analytical and reconciliation skills.
• Ability to work independently and manage multiple priorities.
• Must maintain confidentiality and a professional corporate image.

PHYSICAL DEMANDS & WORK ENVIRONMENT

Work Environment:

Job is performed in a general office environment, on site.

Physical Requirements

NP Not Present

O Occasional (Up to 25% of time)

F Frequent (26%-74% of time)

C Constant (75% or more of time)