Grant Thornton UK
Infrastructure Major Projects Assurance Senior Manager

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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:
NEW GROUND WON’T BREAK ITSELF.
While it has internal audit services at its core, as one of the UK’s top 3 providers of internal audit and assurance services Grant Thornton’s Business Risk Services practice is growing our well-established capability in several specialist, expert-led services. This growth plan includes our Major Project, Programme and Portfolio Assurance service line.
In the UK, Business Risk Services currently has over 350 in-house audit and assurance specialists and access to the support of over 4000 experts in very specific, diverse areas such as forensics, financial modelling, mergers and acquisitions and ethics.
We’re happy to talk flexible working and consider reduced hours and job shares, we’ll support you to balance your work and life.
A look into the role
As an Infrastructure Major Projects Assurance Senior Manager within our Business Risk Services practice, you will:
- Support, and deputise for when required, the Head of our Major Project, Programme and Portfolio Assurance service line
- Play an important part an ambitious five year growth plan for the service line, our Business Risk Services practice and the firm as a whole
- Build on the experience that you can bring from sectors such as infrastructure, design and construction, energy, environment, business systems or business change and transformation, by shaping and delivering high quality, insightful project and programme assurance outcomes in sectors ranging from defence and nuclear to retail and hospitality.
- Contribute to the operational management of our Business Risk Services practice
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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Knowing you’re right for us
Joining us as an Infrastructure Major Projects Assurance Senior Manager, the minimum criteria you’ll need is qualification to at least degree level, Full or Chartered membership of a relevant professional body (e.g., APM, RICS, ICE, CIIA) with experience at that level, demonstrable experience of delivering formal project and programme assurance activities, and to be confident managing a portfolio of clients. It would be great if you had some of the following skills, but don’t worry if you don’t tick every box, we’ll help you develop along the way.
- Able to project confidence and credibility, supported by substantial professional experience
- Excellent communication skills, in particular the ability to gather and interpret verbal evidence taken in interviews and deliver concise and insightful outcomes to clients and stakeholders at very senior level
- Proven experience of developing and securing new business
- Experience of delivering maturity assessments (for example P3M3)
- Accreditation as an Infrastructure and Projects Authority Review Team Member or Review Team Leader


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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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