Public Sector Assurance Assistant Manager

Alternatively, Grant Thornton

At Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering positive change in our industry. Providing audit, tax and advisory services, we empower clients through strategic insight, curiosity, and genuine partnership. And we empower our people with real opportunity, an inclusive culture and work life balance. A true alternative.

With over 5,000 people in the UK, and a presence in 150 global markets, we're on an ambitious journey, from great to exceptional, and we need the best people to help us achieve our potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career.

Job Description:

Every day our teams help people do what is right to achieve their goals. The Public Sector Assurance team is no exception.

In Public Sector Assurance, we have worked on some of the UK's largest and most high-profile public-sector clients, with services ranging from being the number 1 provider of external audit with NHS and Local Government, financial reporting assurance and a range of grant services including compliance and assurance.   

At their core, our work has focused on creating value across the whole of the UK focused on supporting the achievement of value for money, good governance and risk management and financial reporting that service users can rely on, evidencing service delivery. Every day our teams help people in businesses and communities to do what is right and achieve their goals. Our purpose is to make a difference by working hand in hand with our public sector clients on significant public sector projects and issues.

We are a team that has public service at its heart and is made up of the following sectors:

• Local Government
• Central Government
• Healthcare

Our passionate, experienced team come from a variety of different backgrounds including professional services, industry and self-employment. This allows us to bring fresh thinking to client challenges. We focus on value over volume giving our clients exceptional service and the team an unparalleled edge in the market.

We’re happy to talk flexible working and will consider reduced hours and other arrangements, we’ll support you to balance your work and life.

A look into the role

As an Assistant Manager within Public Sector Assurance – Growth Services, part of our growth team and project delivery pool, you will:

• Help deliver impactful outcomes for public sector clients by supporting the design and delivery of innovative, people-centred, data-driven and digitally enabled services.
• Work as part of a dynamic growth team across sectors (Local Government, Health, Central Government and arms-length bodies) and capabilities, contributing to both established services and the development of new, market-relevant propositions (e.g. financial reporting, grants assurance, governance and related services).
• Support product and service development through ideation, design and refinement—building use cases, credentials and evidence that strengthen our value proposition and respond to client needs.
• Contribute to business development activity, including proposal writing, pipeline development, market scanning and identifying opportunities for growth across sectors and accounts.
• Support market engagement and lead origination through thought leadership, events and client interactions, helping position our services effectively.
• Work closely with delivery teams and clients to understand complex challenges and translate these into practical, scalable solutions.
• Apply analytical thinking and insight to inform decision-making, using data, market trends and client feedback to continuously improve our offerings.
• Build strong relationships with internal teams, partners and client stakeholders, contributing to collaboration and growth.
• Take ownership of high-quality deliverables, demonstrating strong organisation, time management and communication skills.
• Contribute to a positive, collaborative and entrepreneurial team culture, proactively suggesting and supporting practice development initiatives.

Knowing you’re right for us

Joining us as an Assistant Manager, the minimum criteria you’ll need is:

• Experience in a relevant role such as consulting, product or service development, business development, public sector delivery, financial services, or a related field.
  A background in assurance, finance or audit can be valuable, but is not essential.
• Strong communication skills, with the ability to develop clear, compelling written materials (e.g. proposals, presentations) and engage a range of stakeholders.
• Experience using digital and productivity tools to analyse information and present insights, including Microsoft Office (PowerPoint, Excel), with an openness to using data, collaboration and AI-enabled tools.
• Ability to manage multiple priorities and contribute across delivery, product development and growth-focused activities.

It would be great if you have some of the following skills, but don’t worry if you don’t tick every box—we’ll support your development:

• Experience contributing to product or service development or go-to-market activities.
• Exposure to business development, including bids, proposals or market engagement.
• Confidence using data and technology to generate insights (e.g. Power BI, Tableau or similar tools, or AI-supported analysis).
• Interest in the public sector and the challenges it faces.
• Strong analytical and problem-solving skills, with the ability to structure complex issues and develop practical solutions.
• Commercial awareness and ability to identify opportunities and contribute to client-focused solutions.
• Strong interpersonal skills, including the ability to engage and influence stakeholders.
• A proactive, adaptable mindset with the ability to work in a fast-paced, evolving environment.

Knowing we’re right for you

Embracing uniqueness, the culture at Grant Thornton thrives on the contributions of all our people, we never settle for what is easy, we look beyond to deliver the right thing, for everyone.  Building an inclusive culture, where we value difference and respect our colleagues helps our people to perform at the best of their ability and realise their potential.

Our open and accessible culture means you’ll interact with leaders who are interested in you and everything you bring to our firm. The things that set you apart, we value them. That’s why we give you the freedom to bring your whole self to work and pursue your passions inside and outside of work.

Beyond the job 

Life is more than work. The things you do, and the people you’re with outside of work matter, that’s why we’re happy to look at flexible working options for all our roles, and we’ll always do our best to keep your work and life in balance.

The impact you can make here will go far beyond your day job. From secondments, to fundraising for local charities, or investing in entrepreneurs in the developing world, you’ll be giving back to society. It’s that drive to do the right thing that runs through our every move, grounded in our firm’s values – purposefully driven, actively curious and candid but kind.

We’re looking for people who want to contribute, spark fresh ideas and go beyond expectations. People who want to be able to proudly do what’s right, for the firm, our clients, our people and themselves. It’s how it should be.

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