Tax Assistant Manager (Finance)

TL;DR

Tax Assistant Manager (Finance): Managing tax matters and compliance for a portfolio of energy investment funds and holding structures with an accent on international tax and cross-border transactions. Focus on coordinating international compliance, supporting acquisitions/restructurings, and monitoring tax risks across multiple jurisdictions.

Location: Hybrid in London, GB

Company

Specialist energy investment manager overseeing more than £8 billion of assets to accelerate the transition to a net zero energy system.

What you will do

• Manage tax matters for OEGen funds and associated holding structures.
• Coordinate international tax compliance processes with local advisors across multiple jurisdictions.
• Assist with tax reporting, tax provisioning, and financial statement disclosures.
• Support tax workstreams on acquisitions, restructurings, refinancings, and other transactions.
• Review transaction and financing documentation from a tax perspective.
• Monitor tax risks and contribute to the continuous improvement of internal tax processes.

Requirements

• Around 4–5 years of experience in corporate tax.
• CTA, ACA, or equivalent qualification (or close to qualification).
• Experience gained in a Big 4 firm, international advisory firm, law firm, or in-house tax team.
• Solid grounding in tax compliance, reporting, and tax accounting.
• Must be based in or able to work in London (Hybrid).
• Strong reasoning skills and good commercial awareness.

Nice to have

• Exposure to cross-border structures or international tax matters.
• Interest in infrastructure, energy, or investment management.
• Foreign language skills (particularly German, French, Spanish, or Italian).

Culture & Benefits

• Autonomy-driven environment where people learn, decide, and build quickly.
• Recognized as one of the UK's top companies to work for.
• Collaborative, hands-on in-house tax team with senior stakeholder exposure.
• Comprehensive employee benefits package designed to reward hard work.