George Mavrommatis

Billing operations analyst @HERON

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I have over seven years of experience in billing administration and operations across industries such as telecommunications and energy. I began my career as a Billing Admin at Speedcast, where I managed billing processes and ensured accuracy in financial transactions for three years. Following this, I transitioned to Watt and Volt as a Billing Coordinator, where I streamlined billing workflows and enhanced reporting accuracy. For the past three years, I have been working as a Billing Operations Analyst, leveraging my expertise in SAP, SQL, Excel, and data entry to optimize processes and support organizational goals. I hold two master’s degrees, one in Shipping and Finance and another in Energy, which have given me a solid understanding of industry-specific financial and operational challenges. Throughout my career, I have successfully improved billing processes to reduce errors, managed large datasets efficiently, and implemented process improvements that enhanced reporting accuracy and reduced turnaround times. My strong communication, time management, and teamwork skills have been vital in collaborating with cross-functional teams and delivering projects on time and within scope. I take pride in maintaining a high level of professionalism and delivering consistent results in every role I take on.

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Work Background

Billing Operation Analyst

HERONBilling Operation Analyst

Mar. 2022Attiki, Greece

Energy Billing Coordinator

WATT+VOLTEnergy Billing Coordinator

Jun. 2021 - Apr. 2022Attiki, Greece

Billing Coordinator

SpeedcastBilling Coordinator

Apr. 2020 - Jul. 2021Greece -Prepare COS – Revenue analysis -Collaborate with other departments to ensure billing accuracy -Address customer complaints and questions -Prepare and present analytical reports -Supervising and training colleagues -Manage the status of accounts and balances and identify inconsistencies

Billing Administrator

SpeedcastBilling Administrator

Oct. 2018 - Apr. 2020Greece -Apply agreed pricing on customers and review monthly pro-forma invoices -Inform the rest departments of the Company and the customers for any change in the Company’s pricing policy -Issue and post bills, receipts and invoices

Assistant Accountant

Logifin │Financial & Accounting ServicesAssistant Accountant

Jun. 2016 - Sep. 2016Athens, Greece

Business Support Officer

MPA ConsultingBusiness Support Officer

Nov. 2015 - May. 2016Manchester, United Kingdom•Prepare Marketing plan •Marketing issues •Organizing client lists •Send advertisements, newsletters •Record and monitor AFC jobs, credit control, raising and chasing up invoices •Preparing HR training courses

Operating Officer

Carpentry LTDOperating Officer

Feb. 2015 - Sep. 2015Athens, Greece•Planning and performing large scale carpentry projects (buildings) •Perform accounting duties •Reporting to clients regarding the process of their projects •Customer order fulfillment •Supervising a 4-worker crew

Mathematics Tutor

FreelanceMathematics Tutor

Sep. 2012 - May. 2014Athens, Greece•Tutoring students (ages 10 to 18 years old) in mathematics and statistics •Attending mathematics’ seminars for children with learning disabilities

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