Senior System Administrator / Security Analyst

Requisition ID
# of Openings
Job Locations
US-MO-St. Louis


The Senior System Administrator / Security Analyst serves as the technical and operational support for technology infrastructure for the departments and operating systems within Wunderman St. Louis.  They are ultimately responsible for protecting the production environment against unplanned downtime and ensuring support needs are resolved in a timely manner.  They focus on equipping our employees with the tools to be successful, and providing outstanding service to our customers (both internal/external).


  • Build servers to Wunderman STL standards. (physical/virtual)
  • Define and approve monthly patching
  • Create/disable/delete AD Groups (security/distribution/global groups)
  • Create FTP sites for clients – test connectivity
  • Create Web sites for clients – test connectivity
  • Administer DNS Zones (internal/external)
  • Administrer backupExec (create backup/restore jobs)
  • Define file security permissions
  • Define and review support for servers (proactive weekly error log checks – Srv, Replication mgr., backupexec, Anti-virus, etc)
  • Troubleshoot email accounts (mailbox - Exchange)
  • Trouble shooting, and documentation skills.
  • Maintaining appropriate levels of security
  • Mentor Support tiers 1 and 2
  • Trouble shoot Cisco VoIP phone System
  • Deployment of hardware and software
  • Root cause analysis (trouble shooting)
  • Expert knowledge of Microsoft Server Systems
  • Depth and breath of Microsoft platforms (PC/Servers/Active Directory/IIS)
  • Troubleshoot Citrix/Network connectivity (LAN/WAN)
  • End user support of network infrastructure
  • Digital Guardian Administration 
  • Alert Logic daily administration
  • Troubleshoot FTP sites and security (IIS)
  • Administer/Troubleshoot Sophos Anti-virus
  • Administer Desktop encryption – Sophos SGN
  • Administer mobile Device management - Airwatch
  • Administer/Troubleshoot Malwarebytes
  • Disaster Recover
  • Manage Munki for Apple OS security/vulnerability patching
  • Facilitate Enterprise logging with log reviews
  • Manage and influence weekly security reviews of infrastructure
  • Manage daily and weekly operations of backups
  • Manage multiple Cisco ASA with IDS/IPS modules
  • Manage monthly security/vulnerability patching for Windows
  • Troubleshoot Alarm System and Entry Access System


  • 5+ years experience working in an IT System administration environment.
  • 4 – 5 years experience in IT Security experience in daily operations and security administration
  • Degree preferred, but IT degree is not required.
  • Proven experience in Windows OS, Apple/Mac, SAN, VMware and cloud services.
  • Working knowledge of Apple products, Mac OS software is a plus.
  • Proven skills in MS Office Suite
  • Expert in the fundamentals of network and server/desktop administration, installations, upgrades, techniques, tools, materials, and equipment
  • Customer service skills
  • Excellent verbal and written communication skills


Wunderman is Creatively Driven. Data Inspired. A leading global digital agency, Wunderman combines creativity and data into work that inspires consumers to take action and delivers results for brands. Wunderman has been widely recognized for its work. Forrester Research named us a leader in marketing database operations and a strong performer in customer engagement strategy*. Headquartered in New York, we have 9,200 creatives, data scientists, strategists and technologists in 200 offices in 70 markets. Wunderman is a ‘team first’ culture committed to creating an environment where people come to do the best work of their careers.
* The Forrester Wave™, Customer Insights Services Providers, Q4 2015
Wunderman is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.


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