Citi Group System Administrator - VP Hybrid 

United States, Texas, Irving 

547728799

• 8+ years of progressive experience in Linux Server Administration with enterprise level skills in Physical and virtual environment management.
• Deep Understanding of Linux security methodologies, Hardening procedure and best practices.
• Deep Understanding of Linux Internals – Process Management, Memory handling. Kernel Tuning, Capacity planning.
• Evaluate and maintain server storage and other IT standards for the enterprise and all supporting products and services.
• Excellent problem solving and analytical skills.
• Analyze server and storage characteristics (e.g., CPU behavior latency transmission speeds packet loss and throughput) triage and troubleshoot problems. Knowledge and experience of Root Cause Analysis (RCA) required
• Familiarity with complex multi-site and global network design multi-layered switch environment firewalls VPN Load balancers and DNS
• Familiar with the fundamentals of web application and relational database architectures
• Aptitude for influencing others without direct authority
• Ability to prioritize and work well under pressure
• Excellent communication and documentation skills both in technical and non-technical arenas
• Ability to work with a global support team
• Ability and willingness for on-call and after-hours work
• Ability to thrive in new hybrid work schedule: Days in office, and days remote
• Adept at learning and applying new technologies and solving new problems
• A real passion and excitement about improving processes with new technology
• Ability to coordinate and engage with stakeholders

• Scripting / Coding Knowledge- Understanding and writing a code and script (Shell, Python. Perl, Yaml, and / or PHP)
• Hands on Experience with automation tools (Ansible, Chef, Puppet)
• Knowledge / Hands on Experience with analytics / observability tools (Grafana, Kibana, Elk, Splunk, AppDynamics)
• Experience with container technologies (docker, Kubernetes, OpenShift, AWS, GCP).
• Code Version Control: Knowledge or certification with BitBucket, GitHub, or AWS CodeCommit
• Software Collaboration/Repository Tools: Knowledge or certification with JFrog Artifactory, JIRA
• Understanding of agile and other development processes and methodologies

• Deliver expert-level support and resolution for complex incidents and problems within the Linux ecosystem, ensuring minimal business impact and adherence to SLAs.
• Troubleshoot and resolve escalated issues in the Linux Environment.
• Proactively monitor system health, performance and capacity to ensure stability, availability and reliability.
• Perform Kernel Upgrade, patches and Vulnerability Management to ensure compliance meeting the organization standards.
• Design and enforce system hardening, access control, and security baselines aligned with the compliance framework.
• Server as escalation point and technical advisor for Level 1 and 2 administrators, develop technical runbooks and knowledge-based articles.
• Participate and lead initiatives for architectural reviews, infrastructure modernization, and enterprise risk assessments.
• Lead Major Incidents and engage with stake holders to perform Root Cause Analysis and provide permanent solutions.

• Bachelor's/University degree in Computer Science/Engineering preferred or equivalent experience

Anticipated Posting Close Date: