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Sr. System Administrator in Milwaukee, WI at Interactive Business Systems

Date Posted: 10/12/2018

Job Snapshot

Job Description

Interactive Business Systems is teaming up with a Milwaukee client to locate and bring on a Sr. Systems Administrator for a contract to hire opportunity!

We are looking for a Senior Systems Administrator to work in a highly technical role,  responsible for the maintenance, monitoring, patching, updates and documentation of the network and infrastructure across eight sites.

This position assists with strategic planning and innovative solutions, and applies advanced technical knowledge to implement and support enterprise voice, video and data services that align with the Company's business and IT objectives. The Senior Systems Administrator provides hands-on technical capabilities and manages simple and enterprise-wide projects from initiation to completion for the voice, video and data infrastructure.  This position partners with stakeholders, vendors and the IT Department team to define requirements; and to develop architecture for scalable and reliable network infrastructure to meet present and future business needs.


1.   Provide Project Management for Information Technology upgrades and improvements.

2.   Conduct routine hardware and software audits of the network infrastructure to ensure compliance with established standards, policies, best practices and configuration guidelines.

3.   Develop and maintain network communications between existing and new IT infrastructure.

4.   Configure, test, and maintain security protocols on all IT infrastructure, including intrusion detection systems and network access.

5.   Recommend purchases and upgrades of hardware and software, including maintenance and support.

6.   Execute installation, maintenance and enhancements of a wired and wireless network that delivers voice, video and data services on corporate production and guest networks.

7.   Execute perimeter network security including firewalls.

8.   Provide maintenance to private DHCP services and both public and private DNS services.

9.   Ensure data integrity and security by evaluating, implementing, and managing appropriate network infrastructure hardware and software solutions utilizing industry standards and best practices.

10. Work with voice and data service providers to obtain new service and troubleshoot/maintain existing service.


1.   Associates degree in Computer Science, MIS or equivalent experience.

2.   Three years of direct experience with Windows Active Directory.

3.   Three years of direct experience working with SIP and VoIP protocols.

4.   Three years of experience in the implementation and maintenance of system.

5.   Four years of experience with configuration of network infrastructure and system architecting.

6.   Comprehensive knowledge of Email: Microsoft Exchange, Fiber Optic, DNS and Spanning Tree.

7.   Considerable knowledge of Cisco VTP (VLAN database), VLAN configuration and troubleshooting, NTP and Firewall DMZ programming and administration.

8.   Considerable knowledge of Active Directory – advanced (create OU's, Group Policy, Forests etc.) Linux scripting.

9.   Considerable knowledge of NAGIOS and Microsoft SCCM.

10. Working knowledge of Cisco IOS advance configuration (including EIGRP, OSPF, RIP, BGP routing protocols).

11. Working knowledge of Windows PowerShell and Aero-Hive Wireless Networks.

12. Ability to manage multiple projects.

13. Desire and ability to absorb/seek/teach new technologies.

14. Ability to use good judgment and experience to resolve complex issues and challenges.

15. Ability to take ownership for work and initiative for requests, incidents and problems.

16. Must have project management experience.

17. Excellent oral and written communication skills.

18. Proven track record in migrating system and technology.

11. Virtualize servers and manage a virtualized environment.

12. Assist Director of IT in developing standards, policies, and administrative needs.

13. Document and share all processes and solutions in a manor to which any technical staff would be able to follow.

14. Provide rotational support of on-call phone.

Interested candidates should send a resume and brief cover note to the attention of Chris Douglas at Interactive Business Systems (

IBS offers a competitive salary and comprehensive benefits package to all employees. Referral and sign-on bonuses may also be available.

About IBS: IBS, Interactive Business Systems, Inc., is an IT solutions and staffing company known for achieving business objectives and bottom-line results through the smart architecting, implementation and management of technology. In three decades of developing the technology applications, tools, environments and teams that foster top business performance, we have become an industry-leading IT services provider.