Junior/Senior IT Auditor – IT Risk From January 2026 – French

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

Contract type: Permanent contract

Working time: Full time

Location: Luxembourg Hamm / Client offices.

Ready to start your career?

Grant Thornton Luxembourg is currently seeking a Junior/Senior IT Auditor - IT Risk 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 Internal Audit department ambitions.

Main mission

As an IT auditor/IT risk advisor, you will be responsible for delivering a full range of IT audits. Your responsibilities include planning, directing, and completing IT internal audits, IT process control reviews, IT risk assessments, other internal control activities (e.g. ISAE3402, ISAE300 etc.), and external audit support; You will help developing and supervising staff and assist in client management and practice development activities.

Main responsibilities

• Work both autonomously and as part of a team to deliver high quality IT audit and IT risk assignments;
• Help to implement performance improvement opportunities by applying IT frameworks (COBIT; ISO27K; ITIL; etc);
• Assist senior management on proposals and business development activities;
• Evaluate and test client-related IT controls and identify areas of risk;
• Apply current knowledge of IT trends and systems processes to identify security and risk management issues, as well as other opportunities for overall process improvement;
• Contribute to deliver high quality reports to senior management and audit committees, including reporting to the regulator (CSSF).

Main requirements

• Bachelor or Master degree in Business or in Information Technology (ideally with audit specialisation);
• From 1 to 5 years of progressive experience delivering internal IT audit services;
• Fluent in French and English (any other language is considered an asset);
• Information Security experience or information security training is required;
• Other areas of expertise such as access control software, security architecture and administration, Internet use/firewalls, network security awareness and enforcement, security policies and standards, operating systems, databases and applications;
• Good knowledge of IT Frameworks (COBIT, ISO27K, ITIL);
• Ability to document testing in a detailed manner, with excellent writing skills;
• Keen on gaining following certifications such as CISA, CISSP or CISM.

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

• 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.

5 reasons to join us

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

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

3. Proximity management in agreement with our CLEARR values;

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

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

6. You are the one that we are looking for

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Languages French English Education Master Experience 1-5 years

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