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Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in managing and supporting security infrastructure and applications, with a strong focus on system health, risk assessment, and operational continuity. Proficient in scripting and automation to enhance process efficiency and stability across production and UAT environments.
Highest-signal resume keywords
Linux Operating SystemsWindows Operating SystemsNetwork Security ComponentsScripting in Shell or PowerShellPKI Technology
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
System AdministrationTechnical Application SupportRisk AssessmentChange ManagementCapacity ManagementPerformance ManagementData Encryption SystemsCertificate Lifecycle ManagementMonitoring AutomationSecurity Architecture Understanding
Soft Skills
Problem SolvingCollaborationCommunication
Tools & Technologies
TivoliSensuAutosysServiceNowApacheIISWebLogicWebSphereOracleSQL Server
Industry Keywords
Security InfrastructureNetwork ProtocolsOperational ContinuityTechnical RiskSystem Alerts
Tech Stack
Tools & technologiesApacheFirewallsLinuxOracleServiceNowSQL
About the role
Key responsibilities & impact- Monitor all system alerts to maintain the health of critical systems
- Troubleshoot client issues, assess technical risk, and coordinate timely resolution
- Assess risk and operational impact of change events and system issues
- Escalate issues to technology management when required
- Provide technical application support for security infrastructure and applications across production and UAT environments
- Manage stability, capacity, and performance of security systems
- Collaborate with infrastructure teams during application integrations and system changes
- Maintain and improve scripts and automation tools for monitoring, process efficiency, and operational continuity
Requirements
What you’ll need- 5+ years of hands-on experience in Linux and Windows operating systems, in an operational or system administration capacity
- Working knowledge of network security components including load balancers, proxy servers, and firewalls
- Familiarity with SFTP, FTPS, HTTPS, PGP, TLS, and SSH
- Bachelor's degree or equivalent professional experience
- Experience with PKI technology, certificate lifecycle management, or data encryption systems
- Experience using Tivoli, Sensu, Autosys, or ServiceNow
- Familiarity with Apache, IIS, Sun One, WebLogic, WebSphere, Oracle, or SQL Server
- Scripting capability in Shell, PowerShell, SQL, or an equivalent language
- Understanding of security architectures and network protocols
- Must be authorized to work in the U.S.; Citi will not sponsor U.S. work authorization
- Must be located within commuting distance or willing to relocate to the area
Benefits
Comp & perks- Hybrid working arrangement with 3 days in the office and 2 days working remotely
- Structured mentorship and knowledge-sharing culture
- Access to Citi's global network of technology and security professionals
- Wellbeing and financial support programs
- Medical, dental & vision coverage
- 401(k)
- Life, accident, and disability insurance
- Wellness programs
- Paid time off, including vacation, sick leave, and paid holidays
- Discretionary and formulaic incentive and retention awards may be available for eligible employees
