O365 Messaging Administrator

Project overview

🌟 What will your role be? 🌟

💼 Position: O365 Messaging Administrator

📍Location: Brest (29)

🏠 Remote Work: 2 days/week

📝 Contract: Permanent or Freelance

👉 Client Context:

You will join a major player in the agri-food sector. The company is undergoing a significant transition: migrating its historical Lotus Notes messaging system to Microsoft 365.

In this context, you will be involved to ensure service continuity following a sick leave, while contributing to the structuring and stabilization of the messaging environment.

The objective: maintain the existing system, support the transition to O365, and guarantee a reliable service for users.

Your missions will include:

Technical Stack: Microsoft 365, Exchange Online, Lotus Notes, Active Directory, account management, messaging administration.

Profile Sought

🌟What will make you our next Sydian gem🌟

So, if you are ready to take on the challenge and join a motivated, curious, and passionate team, don't hesitate to apply, you might become the next gem of the Infrastructure Management team! :)

🌟 The recruitment process with the HR team 🌟

Whether there's a match or not, we will keep you informed. :)

🌟 Life at SYD 🌟

🌟 The little extras 🌟

Work Environment

🌟 About the SYD Group 🌟

We operate in 6 areas of expertise: business solution integration, Consulting & Management, Web & Mobile Development, Data & AI, Infrastructure, Cloud & Cyber, CSR & Responsible Digital.

At SYD, human relationships are guided by three essential values that shape our way of living and working together daily: RESPECT, SOLIDARITY, and INTEGRITY.

Located in the Grand Ouest region, we have offices in Nantes, Paris, Niort, Brest, Bordeaux, and Rennes.

And because CSR has been in our DNA from day one, we are proud to be certified as an exemplary company by AFNOR, according to the ISO 26000 standard.

• Administering the existing messaging system under Lotus Notes (older version).
• Ensuring daily management and administration of Microsoft 365 / Exchange Online.
• Managing accounts, mailboxes, access, and associated groups.
• Participating in actions related to the future Lotus → O365 migration project.
• Handling incidents and requests related to messaging environments.
• Contributing to documentation and procedure updates.
• Collaborating with internal teams to ensure smooth service operation.
• Proven experience in messaging administration, acquired on one or more environments, is the expected foundation for this position.
• Mastery of Microsoft 365 / Exchange Online, ideally complemented by knowledge or initial experience with Lotus Notes.
• Autonomy, rigor, and a service-oriented mindset are essential for providing reliable daily support.
• Participation in a messaging migration project is a real plus.
• Step 1: Initial phone call with a recruiter from the Group:
• Step 2: In-person or video meeting with our Business Engineer:
• Step 3: If your profile matches, we will send your skills dossier to the client.
• Step 4: In-person or video meeting with the client.
• Three core values that we all live by daily: Solidarity, Respect, Integrity.
• Events: Onboarding seminar upon arrival, annual seminar in a secret location, team seminar, Christmas tree, summer parties, sports events... All occasions are good to get together and spend time together.
• The SYD Foundation: As part of our societal commitment, we created a foundation in 2011 to which we allocate 10% of the Group's profit each year to fund projects proposed and led by employees.
• Regular follow-up with the HR and sales teams throughout the assignment.
• Transparency: No secrets, you will be informed of the client's name from the beginning of the process.
• Meal vouchers
• Gift vouchers
• Profit-sharing bonus
• Holiday bonus
• Work-life balance thanks to remote work
• 7 extra days off in addition to the 25 days of leave

Project details

• Start: 25/10/2026
• Duration: 12 mois
• Remote: hybrid
• Location: Brest, Bretagne, FR
• Languages: French