Internal Audit Intern - From September 2025 or January 2026 - French & English Speaking

Working place : Company office, client offices, homeworking, satellite offices

Contract type : Internship - 6 months

Working time : Full time

Location : Luxembourg Hamm, client offices

Ready to start your career?

Grant Thornton Luxembourg is currently seeking an  Internal Auditor Intern - French & English Speaking  to start  from September 2025 or January 2026.

A first working experience with Grant Thornton is an effective opportunity to develop your potential in a human-sized company with a young and dynamic team. It is an operational experience and a springboard for your future career!

For us, you are a strength, your experience is a real added-value and places you as a key element in the realisation of our Internal Audit department ambitions.

Main responsibilities

Work on various types of clients (Investment firms, Management companies, Reinsurances, Banks, PFS, etc.)

Take part in field work at client’ site in line with the scope of the review (review of the processes regarding Governance, Compliance, Risk management, AML / CFT, Business activities, etc.) under the direct coaching and mentoring of the Auditors in charge;

Collaborate with the internal audit team to identify areas for audit focus;

Take part in client interviews, performing tests of design, tests of control, documenting the work performed (objectives, work done, conclusions);

Evaluating the effectiveness of internal controls, and assessing compliance with company policies, procedures and regulatory framework;

Identify weaknesses of the client’s control environment and elaboration of recommendations to address those weaknesses;

Participate in the reporting of audit findings to the Management;

Ensure the follow-up on the implementation of the previous internal recommendations;

Take part in internal projects as part of the continuous improvement of our methodology (through the creation of templates and work programs) and monitoring of the regulatory framework (CSSF circulars, EU directives, MiFID II, Solvency II, etc.).

Main requirements

Currently attending a Master degree in Management, Accounting, Audit & Control, Finance or Economics ;

Looking for your end-of-study internship, you would like to find your first job after this internship

Fluent in  French and English (any other language is considered an asset);

Proactivity, rigour and results-oriented;

Interpersonal and analytical skills;

Excellent oral and written communication skills;

Team player, but able to work autonomously.

3, 2, 1… Get ready to go beyond and apply!

Next steps

HR interview with our Talent team;

Technical interview with Manager(s) or Director of the team.

Grant Thornton worldwide

Grant Thornton is one of the world’s leading providers of independent assurance, tax and advisory services. Over  76,000 Grant Thornton people , across  150 markets , are focused on making a difference to clients, colleagues and the communities in which we live and work.

Grant Thornton Luxembourg

Grant Thornton Luxembourg is a leading provider of  Audit & Assurance ,  Business Advisory ,  Financial Services ,  Tax & Accounting  and  Technology  services for all types of entities in Luxembourg. With more than  340 people and   27 partners , we apply strong technical guidance and breadth of experience to ensure that clients receive a truly different experience.

Entity of work : Grant Thornton Vectis

Grant Thornton Vectis offers business risk services and is exclusively dedicated to deliver internal audit services to the insurance and resinsurance sector, the financial sector and other companies. In 2019 Grant Thornton Vectis received a license of PSA (Professional du Secteur des Assurances) from the CAA (Commissariat Aux Assurances - the insurance sector's regulator).

5 reasons to join us

Work life balance (additional holidays, flexibility, satellite offices, parking possibility);

Interesting Benefits (annual discretionary bonus, trainings / certifications, lunch voucher, pension plan, talent referral reward program, internal mobility program);

Proximity management in agreement with our CLEARR values;

Integration follow-up to ensure yours & career development opportunity (on-demand feedback, mid-year and annual performance review);

Company life (events, afterworks, teambuilding, sport events) & engagements (Corporate Social Responsibility, Human Rights, Diversity & Inclusion);

You are the one that we are looking for!

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