Tax Assistant Manager

OEGen is a specialist energy investment manager overseeing more than £8 billion of assets under management. Our mission is to accelerate the transition to a net zero energy system by investing in clean energy infrastructure and energy transition businesses across multiple jurisdictions.

As our international portfolio continues to grow, we are looking to strengthen our in-house tax capability with the addition of a commercially minded tax professional who is keen to develop within a fast-paced investment environment.

The Role

We are looking for a Tax Assistant Manager (or emerging Tax Manager) to join the OEGen Tax Team, reporting directly to the Funds & Deals Tax Lead.

This is an excellent opportunity for someone with around 4–5 years’ experience who is looking to step into a broader international role and continue developing their technical, commercial, and project management skills within a growing infrastructure investment platform.

The role will support a portfolio of OEGen funds and associated holding structures across multiple jurisdictions. You will work closely with investment teams, finance teams, portfolio companies, and external advisors on a wide range of tax matters, including compliance oversight, reporting, transactions, and structuring support.

The position offers broad exposure to international investment structures and cross-border transactions, while working as part of a collaborative and hands-on in-house tax team.