Senior Windows/Linux Administrator

Cognizant is an American multinational company providing information technology, consulting, and business process outsourcing services. We are looking for Windows/Linux Administrator. The role purpose is to provides 24x7 managed virtualized compute resources across Linux and Windows OS environment, ensuring scalable, high-availability workloads across different data centers and cloud environments. Key Responsibilities Manage and support virtualized compute environments running Linux and Windows operating systems. Provision, configure, and maintain servers to ensure scalability and high availability. Monitor system health and performance 24x7, responding to and resolving incidents. Apply patches, updates, and security hardening across managed environments. Support workload migrations and deployments across data center and cloud environments. Maintain documentation of system configurations and operational procedures. Operate key vault and Public Key Infrastructure (PKI) services supporting secure credential and certificate management. Collaborate with security teams to ensure compliance with PKI and key management policies. Required Skills \& Experience Strong administration experience with Linux and Windows Server operating systems. Experience with virtualization platforms (e.g. VMware, Hyper-V) and cloud compute services. Knowledge of key vault solutions and PKI/certificate management. Experience supporting high-availability, mission-critical environments. Scripting skills (PowerShell, Bash) for automation of routine tasks. Strong incident and problem management capability in a 24x7 setting. We Offer Encouraging working atmosphere, engaging activities and extra benefits (e.g. additional medical insurance (covers gym subscription), team events, outreach activities, and other) Hybrid work model with remote work opportunities (work from Vilnius office 3 times per week) Open, modern and ergonomic work environment when working from the office with multicultural community Opportunity to grow both professionally and personally and continuously develop within the domain The salary range for this position is from 3.800 to 5.042 EURO gross before taxes.\ Salary offer for the candidate is determined based on the predefined salary ranges for the position and depends on the level of competence and experience of the candidate. Only suitable candidates will be contacted within 7 days from application. Stay up to date with our website https://www.cognizant.com/lt/en