External Auditor Intern - from January 2026 - French & English Speaking

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

Contract type : Internship

Location : Luxembourg Hamm, client offices

Ready to start your career?

Grant Thornton Luxembourg is currently seeking External Audit Intern to start from 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 External Audit department ambitions.

Who we are looking for

We’re looking for talented and dynamic people who want to be a part of something bigger. Free to be yourself, confident and approachable. You are a great relationship builder who can inspire everyone around you with your energy and ideas;

You’ll help our clients to tackle their burning issues and future challenges. Listening hard and asking the right questions is at the heart of providing great business advice. We’ll enable and empower you to do just that, so you can show initiative and bring new ideas and perspectives to the table to help our clients and the wider economy to grow;

You share our CLEARR values – Collaboration, Leadership, Excellence, Agility, Respect and Responsibility. Always striving to grow yourself, you should be driven to succeed with the ability to see tasks through to the end and remain agile, even when things don’t go to plan;

Your ability to see the bigger picture and also drill down into the small detail will make you stand out from the crowd – a real natural when it comes to solving problems, you’ll be able to analyse the numbers and back them up with strategic advice.

Main requirements

Master degree in Audit, Economics, Accountancy or Finance ;

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);

Technical accounting skills;

Proactivity, rigour and results-oriented;

Excellent analytical, organizational, and project management skills.

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

Next steps

Technical study case;

HR interview with our Talent team;

Technical interview with Manager(s) or Partner(s) 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 : Audit & Assurance

Our Audit & Assurance department is specialised, and assigned exclusively, to tasks reserved to the Luxembourg Auditors ("Réviseurs d'Entreprises Agréés"). Our Audit Partners are members of the Luxemburgish "Institut des Réviseurs d'Entreprises" (IRE) and we have over 100 people committed to delivering high quality audit & assurance services in Luxembourg.

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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