Job Opportunities API

#One Group | One Energy We are Enerwave, member of HELLENiQ ENERGY and a leader in providing outstanding and innovative energy solutions. We operate with passion, being engaged in heart and mind to what we do, and we pride ourselves on offering our employees a place where they can excel, creating value. We are offering now a set of exciting positions in our headquarters in Athens, across multiple departments and areas of expertise. We are currently looking for a Billing Data Analyst, who will support the Billing & Metering section through data analysis, reporting, and automation, ensuring billing accuracy and enabling data‑driven decision making. What will you do: Compile and export monthly key performance indicators (KPIs) and present them to the manager Conduct data analysis with SQL and Excel to generate informative reports for the Billing Section Analyze data providing recommendations based on findings and insights Perform pre and post-billing mass validation checks and ensure the correct implementation of billing cycles Create, develop, test, and implement automated processes for the Billing section Develop and implement quality assurance procedures to ensure billing accuracy Evaluate data sets to be used for further analysis and data implementation for data engineers and business intelligent engineers Collaborate with the Manager and Supervisors to understand section needs and translate them into data-driven solutions Collaborate with cross-functional sections to identify business problems and propose data-driven solutions What you need to be successful: A BSc in Economics, Mathematics, Statistics or a relevant applied science A MSc in Business, Finance, Economics or related field will be considered as an asset 2+ years of working experience in an similar role (preferably in energy sector) 2+ years of experience in data analysis Good understanding of CRM and ERP systems Strong analytical skills Good knowledge of SQL and familiarity with databases (SQL Server) Basic knowledge of Power BI or similar data visualization tools Very good understanding of the energy industry Attention to detail and high accuracy Ability to work collaboratively with cross‑functional teams Advanced experience in MS Office (Excel & PowerPoint) Very good written and verbal communication in English Our offer to you: Competitive salary Bonus Scheme 💰 Ticket restaurant card 💳 Transportation reimbursement ⛽ Private Health Insurance coverage 🩺 Pension Scheme Home electricity and natural gas discount ⚡ Continuous learning & upskilling opportunities and access to our premium online training platform 📚 Reimbursement for your athletic activities 🥈 Wellness initiatives & benefits at the office Enerwave will keep your personal information for a period of 2 years from the submission date, after which we will delete your personal data. Enerwave has the right to transfer your personal information to third parties to whom it has assigned services, which require the collection and processing of such personal data for candidate evaluation in the process of personnel selection. For more information regarding the processing of your personal information and exercising your rights, please read the Enerwave Privacy Policy.