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Advisory Assistant Manager - Energy, Infrastructure & Environment

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Mazars UK LLP - formerly CompetitionRx Ltd
Full Time position
Listed on 2026-02-25
Job specializations:
  • Finance & Banking
    Corporate Finance, Financial Consultant
Job Description & How to Apply Below
Location: Greater London

Advisory Assistant Manager - Energy, Infrastructure & Environment

Join to apply for the Advisory Assistant Manager - Energy, Infrastructure & Environment role at Mazars UK LLP - formerly Competition Rx Ltd

Forvis Mazars is a leading global professional services network providing audit & assurance, tax, and advisory services. Forvis Mazars in the UK spans 14 offices across the nation and has over 3,400 professionals, with 190 partners. We have a clear purpose and a shared commitment to shape a better future.

You’ll join a collaborative and inclusive team where you’re supported to grow your skills, explore new opportunities, and contribute from day one. You’ll work with a diverse client base, develop meaningful connections, and gain experience that extends beyond your local team. Together, we grow
, belong and impact
.

Job Purpose

We are looking for an individual to join its global Energy, Infrastructure & Environment team, with the role based in London.

Forvis Mazars' Energy, Infrastructure & Environment practice is trusted by the world's leading investors and developers in the sector to deliver a broad range of services. Within this practice, the Infrastructure Finance business unit provides transaction lead advisory, financial modelling, valuations and training services to clients across EMEA and the Americas, from regional hubs in London, Paris, New York, Toronto, Johannesburg and Delhi.

You will support Partners and Directors in further developing the Advisory service line within Mazars through the delivery of a high-quality service across a range of clients within the energy & infrastructure sector – acquisitions, sales, fundraisings, bid advisory and debt raisings.

Role & Responsibilities
  • The candidate will have the experience, knowledge and confidence required to deliver advisory assignments focusing on the energy & infrastructure sector with very little supervision.
  • Preparing transaction documentation – business plans, information memorandum and financial models.
  • Researching and approaching potential buyers / sellers for clients.
  • Taking the day-to-day lead role in running assignments, typically with a portfolio of assignments at any one time.
  • Project managing aspects of larger transactions and full project management of smaller ones.
  • Building strong working relationships with the client, ensuring any problems or requests are dealt with promptly.
  • Providing clear tactical advice on larger and more complex transactions, under the supervision of more senior team members.
  • Maintaining control and stability under pressure while recognising the deadline or urgency to be dealt with.
  • Ensuring that clients are billed according to the agreed billing plans under each engagement.
  • Ensuring that projects are managed in accordance with Mazars' quality and risk procedures.
  • Ensuring budget is set and managed, with appropriate financial management on the jobs.
Business development and wider marketing responsibilities
  • Developing market intelligence and sector knowledge to prepare for new deal opportunities and pitches.
  • Taking lead on proposal documents for new opportunities and helping to convert these.
  • Building strong rapport with both existing and target clients and key market constituents.
  • Supporting the team in marketing activity as well as building own market profile.
  • Building an internal network within Forvis Mazars (both in the UK and internationally), to maximise the value we bring to clients and opportunities for the firm as a whole.
  • Working as part of an integrated deal advisory offering, working closely with colleagues across Transaction Services, Tax and other advisory teams.
  • Promoting Forvis Mazars energy and infrastructure sector knowledge both within the broader teams at Forvis Mazars and to other relevant parts of the firm.
Broader team responsibilities
  • Acting as a mentor to junior team members: help individuals to achieve their potential through coaching, training and development.
  • Reviewing the work of others and providing informal feedback throughout the fieldwork stage.
Key Requirements
  • The right person is likely to have a minimum of two years of experience doing valuations, modelling and/or deal advisory work in the…
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