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.
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.
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 Our work is analytical, rigorous, and often central to resolving multi‑million‑pound legal matters.
You will contribute to expert reports, financial analysis, and case strategy on some of the most significant disputes in the market.
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 We help organisations strengthen internal controls, respond to allegations of misconduct, and navigate complex regulatory environments.
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. Forvis Mazars is a leading global professional services network providing audit & assurance, tax and advisory services.
In the UK, we're home to more than 3,400 professionals and 190 partners across 14 offices, all united by a shared purpose: shaping a better future. Whether you're starting your career or taking your next step, you'll find opportunities to learn, develop and make a meaningful contribution from day one.
We believe the best ideas come from different perspectives, so you'll be encouraged to bring your whole self to work, collaborate with talented people across our firm, and build relationships that help you grow. At Forvis Mazars, you'll belong to a local team, benefit from global opportunities, and make an impact for our clients, communities and each other. Together, we grow, belong and impact.
Our feedback and coaching culture means we are passionate about improving our application process. We would value your feedback on how you have found our recruitment process. Please click on the link here to share this with us. We recruit most of our opportunities on a rolling basis, so roles may close earlier than advertised if they receive a high volume of applications. We encourage you to apply as soon as possible.
As we've recently transitioned to a new application portal, there may occasionally be some unexpected issues. While everything should run smoothly, if you experience any issues or something doesn't look quite right, please get in touch with our recruitment team and we'll be happy to help. We want to get to know the real you.
Applications written in your own words help us understand your experiences, motivations and potential, so we'd encourage candidates not to rely on AI-generated answers. At Forvis Mazars, we believe great careers start with great experiences. That's why we're committed to providing a transparent, respectful and people-centred recruitment process.
Every application is reviewed by our team, and all candidates will receive an outcome, regardless of the result.
