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Billing & Metering Specialist (1 year contract)

Optimal HR · Marousi, Attica, Greece · 2026-09-10

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About this role

Optimal, on behalf of its client Enerwave, member of HELLENiQ ENERGY and a leader in providing outstanding and innovative energy solutions, is seeking a Billing & Metering Specialist (1 year contract).
The Billing & Metering Specialist will deal with a range of utility-related issues like meter readings management, issuance of energy invoices, and billing-related reporting and be involved in regular communication with customer 1st level support, partner agencies, and network operators. The contract for this role will be for a period of 1 year.

Responsibilities:

• Execute regular and ad hoc customer billing printing and delivery (both for EL & NG), perform sample checks (billing controls) on the correctness of the issued invoices to ensure that all customers are billed and the invoices are issued correctly and maintain a record of checked and confirmed printed bills.

• Participate with an active role in the Billing Cycles Management process (both EL & NG) by updating the billing system with all necessary commissioning specifications

• Handle meter readings and metering corrections processes both for electricity (EL) and natural gas (NG) and perform validations (e.g. before uploading them into the company's systems, evaluations of automatic payments).

• Resolve escalated customer issues related to measurements and charges-related disputes.

• Perform and control the process of reimbursement of municipal fees in the respective municipalities of 3rd party charges that are collected through electricity bills and ERT fees; compile reports for the parties involved (e.g. Accounting, Tax & Treasury).

• Provide regular and ad hoc reporting for customers to support the sales function. Provides customized reports to large customers.

• Perform the process of printing and dispatching the issued documents to customers and update the billing system with all the necessary commissioning specifications as described in the contract.

• Perform UAT checks in new system development and communicate to IT and if needed directly to the vendors any issues that must be addressed

Requirements

• A BSc in Economics, Mathematics, Statistics, or a relevant discipline (applied science)

• A minimum of 2 years of Relevant Professional Experience

• Fluent in English both verbally and in writing

• Advanced Software Skills, MS Office,

• Excellent analytical & numerical skills

• Strong teamwork

• Excellent communication skills

About Optimal
Since 2005, Optimal has provided unparalleled, bespoke HR services to large organizations and SMEs operating in the EMEA region. We pride ourselves on delivering a 360° business support platform to our clients through 6 service divisions:

• Talent Acquisition

• HR Strategy & Talent Development

• Learning & Development

• Workforce Management

• Recruiting

• Outplacement

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