Senior Internal Auditor in London

Our client is seeking an experienced Senior Internal Auditor to join their global organisation on a permanent basis. This is an opportunity to contribute to the continuous improvement of internal controls, governance, and risk management processes within a purpose-driven international environment.

The successful candidate will play a key role in delivering risk-based internal audits, supporting fraud prevention initiatives, and partnering with stakeholders across the organisation to strengthen operational effectiveness and accountability.

This role is based in London with a hybrid working model requiring approximately 40% of working time to be spent in person at the London office, external meetings, or during travel.

Responsibilities

• Deliver risk-based internal audit assignments to assess the effectiveness of financial and operational controls
• Provide assurance that control procedures are appropriately designed and effectively implemented
• Support management with advice relating to governance, risk management, and internal controls
• Contribute to the ongoing development and enhancement of the Internal Audit function
• Support fraud awareness initiatives and participate in fraud investigations where required
• Prepare clear, concise, and high-quality audit reports with actionable recommendations
• Build strong relationships with stakeholders across different regions and departments
• Engage confidently with senior leadership and board-level stakeholders
• Support and coach secondees while supervising assigned work where appropriate
• Promote organisational commitments relating to equity, inclusion, safeguarding, and ethical conduct

Requirements

• Proven experience within internal audit
• Professional accounting qualification (CCAB) or accredited membership with the Chartered Institute of Internal Auditors (CIIA)
• Strong understanding of risk management frameworks and internal control environments
• Excellent analytical, numerical, and financial management skills
• Experience conducting audits using data analytics and AI-driven techniques
• Excellent communication and report‑writing skills in English
• Strong stakeholder management and influencing skills
• Ability to manage multiple priorities and work independently with limited supervision
• Strong organisational and time management skills
• Advanced IT literacy
• Ability to work effectively across diverse cultures and international teams
• Willingness to travel as required
• High levels of integrity, professionalism, discretion, and resilience

Desirable Skills and Experience

• Experience working within the international NGO or non‑profit sector
• Fraud investigation qualifications or experience, such as Certified Fraud Examiner (CFE)
• Additional language skills including French or Portuguese
• Knowledge of languages spoken in countries where the organisation operates

36 days annual leave including public holidays. Option to purchase up to 5 additional days of annual leave. Employer pension contributions up to 10%. Flexible and hybrid working arrangements. Season ticket loan. Free annual eye tests. Payroll charitable giving scheme. Enhanced parental leave policies. Sabbatical opportunities. One paid volunteering day annually. Additional office closure leave between Christmas and New Year.

Equal Opportunity Statement

Our client is committed to creating an inclusive and diverse workplace and welcomes applications from candidates of all backgrounds, experiences, and perspectives.

Safeguarding Statement

The organisation maintains a zero‑tolerance approach to bullying, harassment, discrimination, exploitation, and abuse of power. Safeguarding and ethical conduct are central to all operations, and all successful candidates will be subject to appropriate screening and compliance checks.