Investigation Officer

The Government Internal Audit Agency (GIAA) is driven by its unparalleled access across government to build ‘better insights, better outcomes’ for our clients.

This role offers a strong platform for career progression within the Agency and the wider civil service, providing opportunities to develop leadership, stakeholder engagement and strategic relationship management skills across government.

The Agency’s unique access across the public sector exposes you to different risk and control environments, allowing you to gain insights, apply experience, contribute meaningfully, and continue developing professionally.

This is an exciting opportunity to join GIAA’s multi-award winning Counter Fraud and Investigation team. Since 2016, the team has delivered counter fraud services to over 120 separate Government Departments, Agencies and Arm’s Length Bodies and offers an unparalleled opportunity to work collaboratively across Government to combat fraud and protect public funds.

The team provides a high quality, independent specialist counter fraud service, aligned to the Government Counter Fraud Framework and associated functional standards. To achieve this, our service offering is based on five service lines: investigation; fraud risk assessment; whistleblowing/speak up; Government GovS013 Functional Standard; and tailored counter fraud support.

Whether you’re an experienced investigator looking for a fresh challenge or looking to expand your experience, GIAA’s Investigation Officer roles could be for you.

The Investigation Officer role requires flexibility, attention to detail, a commitment to quality and a desire to deliver the best possible outcomes.

A primary objective of Counter Fraud and Investigation is to lead the Government’s response in tackling insider and third party fraud. To succeed, we continue to foster effective and collaborative working relationships with other parts of government. Successful candidates will be expected to create and nurture relationships, enabling the best response to threats and incidents across government and provide in-depth advice and guidance to senior stakeholders and GIAA customers

Role responsibilities

• Undertake investigations and/or counter fraud activities across the Public Sector, to expected quality standards, under the direction of an Investigation Manager, in line with agreed plans, timescales, budget and legislative and procedural requirements;
• Develop counter fraud policies and guidance to support investigative and strategic operations in accordance with agreed timetables;
• Engage effectively with stakeholders throughout investigations and other counter fraud activities ensuring objectives are agreed, and met, and feedback provided at key stages, leading to high quality output across all products & processes;
• Support the delivery of business objectives through publicity and marketing of Counter Fraud and Investigation services, partnering and negotiating with key stakeholder groups and by sharing of best practice with colleagues;
• Contribute to responses to requests for information (including cross government reporting, Freedom of Information requests, Audit Committee briefings and complaints) accurately and timeously;
• Contribute to continuous improvement and quality assurance across Counter Fraud and Investigation functions to improve the way it identifies problems and delivers appropriate solutions across Government organisations;
• Undertake research and analytical activities, including horizon scanning, to identify and analyse current and emerging internal and external counter fraud threats to government;
• Support the strengthening of the counter fraud response across government through fraud awareness activity and collaboration with government organisations to understand and address identified risks and weakness

Candidates will be required to hold the Accredited Counter Fraud Specialist (ACFS) or Accredited Counter Fraud Manager (ACFM) qualification. Applicants who hold a similar accredited investigation qualification and have relevant experience as a practitioner in another other investigative background are also encouraged to apply

This job is broadly open to the following groups:

• UK nationals
• nationals of the Republic of Ireland
• nationals of Commonwealth countries who have the right to work in the UK
• nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities with settled or pre-settled status under the European Union Settlement Scheme (EUSS) (opens in a new window)
• nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities who have made a valid application for settled or pre-settled status under the European Union Settlement Scheme (EUSS)
• individuals with limited leave to remain or indefinite leave to remain who were eligible to apply for EUSS on or before 31 December 2020
• Turkish nationals, and certain family members of Turkish nationals, who have accrued the right to work in the Civil Service

Further information on nationality requirements (opens in a new window)

This vacancy is using Success Profiles (opens in a new window), and will assess your Strengths, Experience and Technical skills.

Recruitment Timeline

Closing date: 31 August 2026 before 23:55

Shortlisting: Week Commencing 7 September 2026

Interviews: Week Commencing 21 September 2026

This timeline is indicative and may be subject to change. We will inform you if there is a substantial change to the recruitment timeline.

If your contact details change at any time during the selection process, please ensure you update your Civil Service Jobs profile.

Please note that only applications submitted through Civil Service Jobs will be accepted.

Eligibility Statement

A candidate is not eligible to apply for a role in the Civil Service if the application is made within a 5-year period following a dismissal for carrying out internal fraud against government. Checks will be performed as part of pre-employment checks in line with this. Please refer to the Candidate FAQ document attached to the advert for more information.

Everyone working with government assets must complete Baseline Personnel Security Standard (BPSS) checks. Additionally, individuals appointed to the Treasury group will be subject to National Security Vetting. The level of security vetting required for this role is Security Check (SC)

To allow for meaningful checks to be carried out, applicants will need to have lived in the UK for at least 3 out of the past 5 years. In exceptional circumstances, for example if you have been working abroad on a government posting, a lack of residency would not be a bar to security clearance however the Department will need to consider eligibility on a case-by-case basis once the advert closing date has passed.

Please read the Vetting Charter for information on what to expect during the vetting process and what will be expected from you. Many areas of your life may be explored during your vetting journey, and it is important that every individual, regardless of their background and experiences, should feel comfortable going through this personal process, whilst having confidence that it is fair, proportionate, and inclusive.

Feedback will only be provided if you attend an interview or assessment.