Senior Internal Auditor: Strategic Assurance & Controls

Forvis Mazars UK; City Of London; On-site; GBP 70,000 - 95,000; Full time

Job summary

Forvis Mazars UK is seeking a Senior Internal Auditor to lead and deliver high‑quality, risk‑based internal audits across the firm. You will assess controls, evaluate regulatory compliance, and provide insights for continuous improvement.

The role involves working with the Head of Internal Audit and senior stakeholders to ensure timely assurance and value-added recommendations. You will develop risk-focused audit scopes, manage audits end-to-end, mentor junior staff, and contribute to the

Qualifications

• Experience in internal audit or within a compliance/risk assurance environment.
• Knowledge of the Global Internal Audit Standards (GIAS).
• Qualifications such as IIA, ACA, ACCA are preferred but not essential.

Responsibilities

• Leading and delivering high-quality, complex, risk-based internal audits from planning to reporting.
• Developing scoping documents in collaboration with auditees before fieldwork begins.
• Managing audits to timelines and budgets while addressing delivery risks.
• Building trusted relationships with auditees and stakeholders and communicating findings clearly.
• Providing advice to strengthen controls and support change initiatives.
• Drafting insightful reports that go beyond compliance and add strategic value.
• Following up on agreed actions to ensure implementation and risk mitigation.

Skills

Internal audit

Stakeholder management

Data analysis

Auditing standards

Risk assessment

Education

IIA/ACA/ACCA preferred

Tools

Excel

Job description

Forvis Mazars UK is seeking a Senior Internal Auditor to lead and deliver high‑quality, risk‑based internal audits across the firm. You will assess controls, evaluate regulatory compliance, and provide insights for continuous improvement.

The role involves working with the Head of Internal Audit and senior stakeholders to ensure timely assurance and value-added recommendations. You will develop risk-focused audit scopes, manage audits end-to-end, mentor junior staff, and contribute to the