Forensics & Investigations - Assistant Manager

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.

About The Team

Our Forensics and Investigations Services team is a dynamic, close‑knit group of more than 35 professionals based across three offices in the UK and one in India. We combine intellectual challenge with real‑world impact, working on high‑profile, complex matters across two core areas: Disputes and Investigations & Compliance.

Disputes

We Act As Financial And Accounting Experts—either As Independent Expert Witnesses Or Expert Advisors—in a Wide Range Of Contentious Matters. These Typically Arise In Litigation Or Arbitration And Include

• Post‑M&A disputes
• Investment arbitration
• Financial reporting disputes
• Breach of contract claims
• Professional negligence cases

Investigations & Compliance

We conduct financial and non‑financial investigations for corporates, regulators, and public bodies, including:

• Fraud and corruption investigations
• Regulatory and government inquiries
• Compliance reviews and advisory engagements

A Diverse and Stimulating Workload

Our engagements span a wide range of sectors and clients. Whether supporting a multinational energy company in a multi‑billion‑dollar arbitration, assisting a local authority with procurement concerns, or investigating potential financial reporting fraud for a national regulator, you will gain exposure to varied and intellectually stimulating work.

A Collaborative and Supportive Culture

This is demanding work that requires strong attention to detail, excellent problem‑solving skills, and a commitment to high standards. But you will never be working in isolation. Our culture is collaborative and supportive—from Partners to graduates, everyone is approachable, knowledgeable, and invested in your development. You will be part of a team that values curiosity, integrity, and continuous learning.

About The Role

As an Assistant Manager, you will play a key role in delivering high‑quality forensic and valuation assignments, ensuring client expectations are met within agreed budgets and timelines. You will work independently on defined workstreams, support senior colleagues on complex engagements, and contribute to the development of junior team members. You will also be involved in business development activities that support the continued growth of the London practice and the wider national team.

Investigations & Forensic Analysis

• Perform detailed forensic accounting work, including targeted financial analysis, transaction testing, and data interrogation.
• Undertake in‑depth document review to identify key issues, anomalies, and patterns.
• Assist in reconstructing financial records and preparing evidence files suitable for litigation or regulatory scrutiny.
• Produce clear, well‑structured working papers that support findings and conclusions.

Disputes & Expert Support

• Support Managers, Directors, and Partners in preparing expert reports for litigation, arbitration, and ADR.
• Contribute to the quantification of damages, valuation assessments, and financial modelling for dispute matters.
• Help prepare high‑quality written reports, schedules, and exhibits for use in legal proceedings.

Project Delivery & Team Contribution

• Manage workstreams, ensuring tasks are completed accurately, on time, and to a high standard.
• Coach and support junior team members, providing guidance and constructive feedback.
• Proactively contribute to the efficient operation of each project, escalating issues and supporting senior team members as needed.
• Participate in non‑chargeable activities, including preparing proposals, supporting business development initiatives, and contributing to internal projects.
• Attend in‑house training and maintain awareness of the full range of services offered by Forvis Mazars.

What We Are Looking For

Qualifications & Experience

• Qualified accountant (ACA/ACCA/ICAS).
• Previous forensic or valuation experience is beneficial but not essential.

Skills & Attributes

• Strong analytical ability and a methodical approach to reviewing financial and non‑financial information.
• Inquisitive mindset, sound judgement, and the ability to think creatively when solving problems.
• High level of attention to detail and commitment to producing high‑quality work.
• Effective time management skills, with the ability to prioritise and manage multiple tasks.
• Proactive approach, taking ownership of assigned work and contributing to team success.
• Strong written and verbal communication skills, with the ability to build credible relationships.
• Alignment with our values, particularly respect, integrity, and appreciation for diversity.
• Commitment to continuous learning and professional development.
• Proficiency in standard IT tools and comfort working with data.

Diversity, Equity & Inclusion

At Forvis Mazars diversity, equity and inclusion are central to our values. We value our people's unique backgrounds, perspectives, and experience, and know this diversity create better outcomes for our clients. We seek to attract, develop, and retain the best talent, inclusive of sex, ethnicity, disability, socio-economic background, sexual orientation, gender identity, nationality, and faith. We select candidates based on skills, knowledge, qualifications, and experience and aim to support all our team members to reach their potential. At Forvis Mazars, we promote an environment in which you can grow your skills, belong to a team that values your ideas, and make an impact that matters.

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