Internal Audit Assistant Manager: Lead & Develop Clients

Brewer Morris; Birmingham; On-site; GBP 60,000 - 80,000; Full time

Job summary

Brewer Morris is partnering with a Top 10 accountancy and advisory firm to strengthen its Internal Audit team with an Assistant Manager. You will lead engagements, manage people, and deliver technical work across a diverse client portfolio in both public and private sectors.

In this role you will interact with senior stakeholders, prepare risk-based audit plans, and drive improvements while developing junior staff in a collaborative, supportive culture that values professional growth.

Qualifications

• Must have professional accountancy qualifications or equivalent (e.g., CMIIA, CIA, ACA, ACCA).
• Experience in internal audit within professional services or in-house.
• Experience across diverse client bases and sectors.
• Strong report writing, communication and stakeholder management.
• Ability to build relationships with clients and colleagues at all levels.
• Organised, commercially aware, able to manage multiple priorities.

Responsibilities

• Support management of a portfolio of internal audit clients and build strong stakeholder relationships.
• Assist in risk-based internal audit plans and annual audit programmes.
• Lead and deliver internal audit assignments from planning through reporting.
• Prepare high-quality audit reports and review junior team work.
• Support client meetings, Audit Committee presentations and wider engagement.
• Manage assignments to budgets and deadlines, ensuring high-quality delivery.
• Coach and develop junior team members.
• Identify opportunities to add value and support business development.
• Contribute to technical research and methodology improvements.

Skills

Stakeholder management

Report writing

Communication

Relationship building

Prioritisation

Proactive mindset

Job description

Brewer Morris is partnering with a Top 10 accountancy and advisory firm to strengthen its Internal Audit team with an Assistant Manager. You will lead engagements, manage people, and deliver technical work across a diverse client portfolio in both public and private sectors.

In this role you will interact with senior stakeholders, prepare risk-based audit plans, and drive improvements while developing junior staff in a collaborative, supportive culture that values professional growth.