IT Infrastructure Engineer
Location
Ukraine
Posted
5 days ago
Salary
0
Seniority
Senior
Job Description
IT Infrastructure Engineer
Київстар
• Lead the administration and evolution of Microsoft Active Directory in a complex enterprise environment. • Own Exchange and Exchange Hybrid (on-premises and Exchange Online), ensuring reliability, security, and seamless coexistence. • Design, operate, and maintain Public Key Infrastructure (PKI), including certificate lifecycle management. • Administer and develop Microsoft 365 / Entra ID identity services, roles, and access models. • Implement and support ADFS / SSO and federation scenarios for internal and external applications. • Ensure secure access control, authentication, and authorization across platforms. • Collaborate with network, platform, and application teams on identity-related integrations. • Drive continuous improvement of identity and messaging architectures and operational practices.
Job Requirements
- Strong hands-on expertise in Active Directory (architecture, trusts, GPO, troubleshooting).
- Proven experience with Exchange (on-prem) and Exchange Hybrid.
- Solid practical experience with PKI (Root/Issuing CAs, templates, CRL/OCSP).
- Production experience with Microsoft 365 / Entra ID in hybrid environments.
- Practical knowledge of ADFS / SSO, federation, and claims-based authentication.
- Strong Windows Server background in enterprise environments.
- Ability to work independently, take ownership, and act as a technical lead.
- English proficiency: Intermediate or higher.
Benefits
- Office or remote — it's up to you.
- Remote onboarding.
- Performance bonuses for everyone (annual or quarterly — depends on the role).
- We train employees: the opportunity to learn through the company’s own library, internal resources and programs from partners.
- Health and life insurance.
- Wellbeing program and corporate psychologist.
- Reimbursement of expenses for Kyivstar mobile communication.
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