Expert Infrastructure & Core Software for Mainframe zOS - IT (Information Systems) - Fontenay-Sous-Bois, Ile de France, France
Key information
- Publication date:14 November 2025
- Workload:100%
- Contract type:Permanent position
- Place of work:Winterthur
Job summary
Join the Groupe's Mainframe expertise center, leading in tech.
Tasks
- Ensure smooth operation of IT equipment and software.
- Manage assigned technical projects using project methods.
- Develop innovation & AI while documenting solutions thoroughly.
Skills
- Bac + 4/5 in IT or engineering, with 5+ years experience.
- Strong knowledge of infrastructure fields like databases.
- Excellent technical English proficiency required.
Is this helpful?
You join the Group's Mainframe expertise center within the Directorate of Resources and Innovation, recognized and at the forefront of technologies and services. The position is to be filled in Val-de-Fontenay (94) or Lille.
Your mission will be to ensure the proper functioning of the IT equipment and software used by the business units. You are the technical reference in your field.
- Specifically, you will be responsible for:
- Managing the technical projects assigned to you, following a project management method
- Providing a cross-functional and strategic vision in your area of expertise
- Communicating incidents and problems to the cross-functional teams responsible for these processes
- Documenting exhaustively the solutions implemented and maintaining the documentation
- Developing innovation & AI
- You have a Bac +4/5 degree in Computer Science or engineering school
- You have at least 5 years of experience in the Infrastructure field, ideally in a similar role
- You know one or more infrastructure trades (Database Administration, system, networks, etc.)
- You have a general overview of all infrastructure trades
- You have a good command of technical English
- You provide a cross-functional and strategic vision in your area of expertise
The position requires regular interventions outside working hours, on-call duties, and short trips to other IT sites of the SG Group (limited to France).
The teams are multisite and solution integration often requires remote work.
Our vision is to play a driving role in positive transformations of the world and to contribute to a greener, more respectful future for the planet!
Choosing Société Générale means joining a Group where the corporate culture is focused on inclusion, diversity, and team spirit!
It means building a dynamic career with the possibility to change positions on average every 4 years, in France and internationally, while benefiting from regular training!
Based on your skills, an attractive remuneration reviewed annually, composed of a fixed salary, an individual variable part, and a profit-sharing and participation bonus will be offered to you.
You also benefit from preferential rates on your banking services, a monetizable time savings account, and a company savings plan with matching contributions.
Attentive to your quality of life and working conditions, you benefit from many additional advantages:
- Teleworking possible depending on your service's rhythm
- 26 to 28 days of paid leave per year and 14 to 18 days of RTT (depending on the year), leave related to life events
- A Works Council (tickets for sports & cultural events, holiday bonuses and subsidies, childcare, Christmas gift vouchers)
- A varied offer of company restaurants and cafeterias at competitive prices as well as dematerialized meal vouchers when you are teleworking
How to join us?
- You apply and your application is accepted, congratulations!
- You have an interview with your future manager, complete online tests, then meet an HR representative.
- Congratulations! You quickly sign your contract and join your new team
At Société Générale, we believe that you are the engine of change, and that the world of tomorrow will be made of all your initiatives, from the smallest to the most ambitious.
Across the globe, whether you join us for a few months, a few years, or your entire career, together we have the means to have a positive impact on the future. Creating, daring, innovating, and undertaking are part of our DNA.
If you also want to be active, evolve in a stimulating and caring environment, feel useful daily, and develop or strengthen your expertise, we are made to meet!
Joining Société Générale means joining a team of talents, committed to their clients and focused on the future. At Société Générale, grow your ambitions.
Still hesitating?
Know that our employees can commit a few days a year to solidarity actions during their working time: mentoring people in difficulty with their orientation or professional integration, participating in the financial education of young apprentices, or sharing their skills with an association. The forms of engagement are multiple.