Internships are part of the syllabus. Students are required to do 3 placements, including one either abroad or as part of an international assignment.
> "First experience" at the end of the 1st year
This internship sets out to provide students with actual experience of how a company works and what its management methods are. The student will be working in a department to gain firsthand experience in a specific job, such as accounting, sales, logistics, etc.
Duration : 5 weeks to 3 months (from late May onwards in the first year)
> "Specialization" internship at the end of the 2nd year
The aim is to give students hands-on experience to complement the technical knowledge they have already acquired in their chosen speciality.
Duration: 2 to 3 months (from mid-May onwards of the 2nd year)
> "Job experience" internship at the end of the program
This placement sets out to give students genuine professional experience through a well-defined assignment, set at junior-manager level. The company is to be able to leverage the student's acquired knowledge within a specific context.
Duration : 4 months minimum (from mid-May of the 3rd year)
> Optional "gap year" internship
To help maximise their career prospects and gain further experience on top of their training, students can take a gap year of 9 months (minimum) on assignment in a company. This can be taken after successfully completing the first or second year at the IECS.

> International Purchasing Master's Degree: 5-month placement from April to September
> International Business Master's Degree: 4-month placement from April to September
> Financial and operational auditing Master's Degree: 4-month placement from January to April

For the following vocational training courses, it is possible to hire a non-salaried trainee who will be doing his/her internship (minimum 600 hours) at the same time as his/her IECS course (2.5 days per fortnight):
> E-business Master's Degree
> Business Engineering Master's Degree
> Marketing-Management Master's Degree
> Logistics Systems Management Degree Program for Executives
> Event Management Degree Program for Executives

The work-study program allows companies to invest in pre-recruiting their future managers and to play an active role in their training, thereby benefiting from transfers of knowledge from the University, helping create closer School-Business relations and contributing to the training of young people, while also obtaining funding.
This program takes place over a 15-month period and is aimed at IECS 2nd-year students who are looking to gain proper professional experience and be financially independent. The program is an attractive proposition for both larger companies and SMEs.

Work-study programs are available in the following Master's Degrees:
> E-business
> Business Engineering
> Marketing-Management