We are looking for a Tax Adviser within a large energy operator in central London - 2 days a week in the office and 3 days WFH. You will be responsible for preparing UK direct and indirect tax compliance and providing integrated tax advice to support the Eni UK group, including responding to HMRC correspondence under the supervision of the Tax Manager. Your role will involve coordinating input from internal tax teams and external advisers, collaborating with UK and overseas colleagues to meet all compliance obligations, and ensuring quarterly tax reporting is completed in line with Group policy. You will also help maintain and monitor effective tax controls across the supply chain as part of the team’s broader responsibilities.

12 months contract; 
starts in March 2026 
 

 
Main responsibilities:
 

• Ensure timely submission of tax returns and compliance filings in the required format.
• Optimise the use of available reliefs and allowances for VAT, EU Sales List, other indirect taxes and Corporation Tax.
• Prepare and provide technical input for HMRC enquiries, including indirect tax queries and CTSA matters.
• Calculate current and deferred taxes, prepare tax journals, and ensure accurate reconciliation of tax figures in line with applicable accounting principles and Eni reporting requirements.
• Support quarterly VAT returns, indirect tax reconciliations, and customs-related matters for imports and exports.
• Prepare final Corporation Tax claims, surrenders and review PRT decision notices and CT assessments.
• Assist in audits, including year‑end and half‑year reviews of tax‑related issues.
• Contribute to tax planning initiatives and corporate optimisation or reorganisation projects.
• Provide tax advisory support to the UK business and collaborate with other teams within the department.
• Maintain positive relationships with fiscal authorities.
• Share expertise by coaching and supporting colleagues within the Tax team.
• Ensure adherence to Health, Safety & Environment requirements and full compliance with the Eni Code of Ethics and Law 231 principles.
• Undertake ad hoc duties as required.

 
Skills and experience required:
 

• University degree or equivalent qualification.
• Professional tax qualification (ATT or equivalent) is recommended.
• Strong understanding of the upstream oil and gas sector and associated tax risks.
• Good working knowledge of UK tax issues, particularly those related to decommissioning.
• Ability to translate complex tax matters into clear, commercial guidance for non‑tax stakeholders.
• Proficiency in SAP accounting systems, Excel, Word and OneSource tax software.
• Strong communication and interpersonal skills, with the ability to work effectively under time pressure.
• Excellent planning, organisation and prioritisation abilities, with flexibility to adapt to changing deadlines.
• Willingness to work overtime or occasional weekends during year‑end, quarterly close or exceptional circumstances.

Our role in supporting diversity and inclusion

As an international workforce business, we are committed to sourcing personnel that reflects the diversity and values of our client base but also that of Orion Group. We welcome the wide range of experiences and viewpoints that potential workers bring to our business and our clients, including those based on nationality, gender, culture, educational and professional backgrounds, race, ethnicity, sexual orientation, gender identity and expression, disability, and age differences, job classification and religion. In our inclusive workplace, regardless of your employment status as staff or contract, everyone is assured the right of equitable, fair and respectful treatment.