Assistant Manager - Public Sector Growth Services in London

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:

A look into the role

As an Assistant Manager within Public Sector Growth, you will:

• Be responsible for business development activity, including proposal writing, pipeline development, market scanning and identifying opportunities for growth across sectors and accounts.
• Market engagement and lead origination through thought leadership, events and client interactions, helping position our services effectively.
• 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.
• 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.
• 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).
• 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 in this team, 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.
• Exposure to business development, including bids, proposals or market engagement.
• Experience using digital and productivity tools to analyse information and present insights, ( eg Power BI, Alteryx, Tableau, MS Dynamics ) 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:

• 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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