Active Directory Administrator (F/H)

[Seclin]

This is Worldline

Worldline helps businesses of all shapes and sizes to accelerate their growth journey - quickly, simply, and securely. We are the innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our technology powers the growth of millions of businesses across 5 continents. And just as we help our customers accelerate their business, we are committed to helping our people accelerate their careers. Together, we shape the evolution.

Main purpose of the role :

The Active Directory Administrator will be responsible for maintaining and optimizing the existing Active Directory infrastructure, ensuring its security, integrity, and compliance. This role involves consolidating and standardizing systems, managing obsolescence, and safeguarding the environment against security breaches. Maintaining a high level of security and ensuring compliance are top priorities.

Technical tasks :

• In-depth expertise in Active Directory (AD): design, configuration, management of multi-domain environments, Group Policy Objects (GPO), federation, trusts, etc.
• Experience with identity and access management (IAM): authentication, authorization, account management, passwords, LDAP, Kerberos, SAML protocols.
• PKI (Public Key Infrastructure): management of certificates, Certification Authorities, and related security practices.
• AD security and auditing: vulnerability detection, secure configuration, audit tools (e.g., PingCastle, BloodHound, etc.).
• Scripting and automation: PowerShell, scripts for managing, maintaining, and deploying AD components.
• Migration and upgrade management: planning migrations, consolidations, and environment updates.
• Knowledge of other Microsoft components: DNS, DHCP, Exchange, WSUS, etc.
• Management of Managed Service Accounts (MSA) & Group Managed Service Accounts (GMSA) : creation, deployment, management, and best practices for securing and automating service accounts.
• Understanding security standards and compliance regulations: GDPR, ISO/IEC 27001, etc.

Methodological tasks :

• Technical project management: planning, implementation, documentation, and change management.
• Risk analysis and vulnerability management: ability to identify, analyze, and remediate security weaknesses.
• Compliance management: conducting regular audits, reporting, and certification processes.
• Advanced troubleshooting and diagnostic skills: resolving complex AD-related incidents.

Interpersonal and soft tasks :

• Effective communication: explaining technical concepts to non-technical stakeholders.
• Analytical and synthesis skills: quickly understanding technical challenges and proposing solutions.
• Proactivity and autonomy: anticipating security and performance issues before they arise.
• Teamwork and mentoring: sharing best practices and training colleagues.
• Customer-oriented mindset and service awareness: understanding business needs and delivering tailored solutions.

Candidate profile :

• Minimum 5 years of experience in Active Directory administration, preferably in regulated or enterprise environments.
• Hold IT certifications relevant to Active Directory, Windows Server, or security (e.g., Microsoft Certified: Windows Server, Security+).
• Autonomous, meticulous, with a strong focus on security and compliance.
• Excellent interpersonal and communication skills, capable of working within a team.
• Proven experience in managing complex & secure Active Directory environments and Public Key Infrastructure (PKI).
• Strong knowledge of security best practices, identity management, obsolescence management, and system standardization.
• Knowledge and practical experience with PingCastle would be a plus.

Perks & benefits

At Worldline you’ll get the chance to be at the heart of the global payments technology industry and shape how the world pays and gets paid. On top of that, you will also:

• Annual bonuses (year-end, vacation, profit-sharing, and incentive schemes)
• 32 days of paid leave, 11 RTT (reduced working time), and a 13th month convertible into leave
• 75% coverage for public transportation
• A very active works council (events, trips, cultural and leisure subsidies, etc.)
• Participation in sports events (Corporate Games, races, etc.)
• Telecommuting agreement
• Subsidized company restaurant
• Health insurance and injury prevention

Shape the evolution

We are pushing towards the next frontiers of payments technology, and we look for big thinkers to join our journey. People with passion, can-do attitude and a hunger to learn and grow. Here you’ll work with ambitious colleagues from around the world, take on unique challenges as a team, and make a real impact on the society. And with our empowering culture, strong technology and extensive training opportunities, we help you accelerate your career. Wherever you decide to go. Join our global team of over 18,000 innovators across 40+ countries, and shape a tomorrow that is yours to own.

Learn more about life at Worldline at jobs.worldline.com

We are proud to be an Equal Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as an individual with a disability, or any applicable legally protected characteristics.