Third Party Assurance Assistant Manager

ACCA Careers; Greater London; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

BDO UK is seeking a Third Party Assurance Assistant Manager within Risk Advisory Services to lead defined engagements, oversee engagement planning, and deliver high-quality assurance projects for a diverse client base.

You will work with Managers, Directors and Partners, developing junior team members, and applying ISA standards while travelling to client sites as required. The role balances management activities with hands-on audit work, aligning with BDO’s collaborative, agile culture.

Qualifications

• Experience delivering Third Party Assurance and data assurance for diverse clients.
• Experience with global assurance standards; ISAE 3000, ISAE 3402, ISRS 4400 desirable.
• Knowledge of risk management and controls testing across client environments.
• Professional qualification ACA or ACCA; strong communication with clients and stakeholders.
• Organised with ability to manage multiple assignments and develop junior staff.

Responsibilities

• Lead defined engagements or workstreams and assist with engagement planning and delivery.
• Balance engagement management with hands-on audits and specialist assignments.
• Collaborate with Managers, Directors and Partners to deliver high-quality engagements.

Skills

Third Party Assurance

Data Assurance

Risk Management

Critical Thinking

Client Engagement

Time Management

Mentoring / Coaching

Education

ACA or ACCA equivalent

Job description

Ideas | People | Trust We’re BDO. An accountancy and business advisory firm, providing the advice and solutions businesses need to navigate today’s changing world.

BDO UK Ideas | People | Trust We’re BDO. An accountancy and business advisory firm, providing the advice and solutions businesses need to navigate today’s changing world.

Our clients are Britain’s economic engine – ambitious, entrepreneurially-spirited and high growth businesses that fuel the economy - and the owners and management teams that lead them.

We’ll broaden your horizons

Our Advisory team provide a wide variety of services that deliver value-led advice and outcomes. They have an in-depth knowledge of business, industry sectors and markets and understand the constantly changing risks and opportunities at the heart of affairs. The team work across strategy,operations and improvement as well as at a transactional and defined project level. From technology to risk advisory,they’re experts in following through on top-level instructions and resolving the finer details – all in one straight-forward package. When you join them,you’ll work on some of the world's most exciting financial operations and business deals, building your experience and expertise alongside the brightest minds in the industry.

We’llhelp you succeed

Our clients trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with clients and building long-lasting relationships.

You’ll be someone who can work pro-actively, managing your own tasks, but you’ll also be confident collaborating with others, communicating regularly with senior managers, Directors, and BDO’s Partners to enable us to serve our clients effectively.You’ll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to our clients.

Overview

As a Third party Assurance Assistant Manager within our Risk Advisory Services (RAS) team, you will play a key role in delivering high‑quality assurance engagements for a diverse range of clients. You will take responsibility for leading defined engagements or workstreams, supporting engagement planning and delivery, and ensuring work is completed to a high standard in line with BDO methodology, and the relevant global assurance standards for each project. You will work closely with Managers, Senior Managers, Directors and Partners, building trusted client relationships and contributing to the effective delivery of engagements. Alongside this, you will support the development of junior team members and continue to build your technical capability, professional judgement and leadership skills as you progress towards Manager level. The role combines engagement and portfolio management with hands on delivery. Typically, you will spend around 50% of your time on management activities;such as engagement planning, portfolio oversight and project management,and 50% leading audits and undertaking specialist assignments, with this balance flexing in line with your experience and development.

You’ll be someone with

• Relevant experience in delivering high-quality Third Party Assurance, controls-based and/or data assurance engagements for a range of clients.
• Experience delivering projects aligned to global assurance and auditing standards, with the ability to tailor work approaches appropriately; desirable knowledge would include an understanding or awareness of ISAE 3000, ISAE 3402 and ISRS 4400.
• Experience in risk management and controls testing, with the ability to apply this knowledge pragmatically across different client environments
• An inquisitive and proactive mindset, with the confidence to challenge constructively, think critically about risks and controls, and contribute ideas that enhance quality and ways of working.
• A recognised professional qualification, for example ACA, ACCA or equivalent, alongside strong written and verbal communication skills and the confidence to engage effectively with clients and stakeholders.
• Good organisational and time management skills, with the ability to manage multiple assignments and contribute to the delivery of a small portfolio of client engagements under manager oversight.
• A collaborative and development focused approach, with an interest in supporting and coaching junior team members, flexibility to travel to client sites as required, and an interest in using data analytics or emerging AI‑enabled audit techniques.

You’llbe able to be yourself; we’llrecognise and value you for who you are and celebrate and reward your contributions to the business.We’recommitted to agile working, and we offer every colleague the opportunity to work in ways that suit you, your teams, and the task at hand.

At BDO,we’llhelp you achieve your personal goals and career ambitions, and we have programmes, resources, and frameworks that provide clarity and structure around career development.

We’rein it together

Mutual support and respectisone of BDO’s core values andwe’reproud of our distinctive, people-centred culture. From informal success conversations to formal mentoring and coaching,we’llsupport you at every stage in your career, whatever your personal and professional needs.

Our agile working framework helps us stay connected, bringing teams together where and when it counts so they can share ideas and help one another. At BDO,you’llalways have access to the people and resources you need to do your best work.

We know that collaboration is the key to creating value for the companies we work with and satisfying experiences for our colleagues, sowe’veinvested instate-of-the-artcollaboration spaces in our offices. BDO’s peoplerepresenta wealth of knowledge andexpertise, andwe’llencourage you to build your network, work alongside others, and share your skills and experiences. With a range of multidisciplinary events and dedicated resources,you’llnever stop learning at BDO.

We’relooking forward to the future

At BDO, we help entrepreneurial businesses to succeed, fuelling the UK economy. Our success is powered by our people, which is whywe’realways finding new ways to invest in you. Across the UK thousands of unique minds continue to come together to help companies we work with to achieve their ambitions.

We’vegot a clear purpose, andwe’reconfident in our future, because we're adapting and evolving to build on our strengths, ensuring we continue to find the right combination of global reach,integrityandexpertise. We shape the future together with openness andclarity, becausewe believe in empowering people to think creatively about how we can do things better.