Position Description:

Responsibilities will include but not be limited to the following:

- Must have Strong Red Hat Linux Skills (Enterprise Level environment). Strong ability to script in Shell and Perl. - Hostmaster responsibilities for DNS Servers and DHCP supporting internal DNS.
- Hostmaster responsibilities for BIND DNS Servers hosting over 5000 domains in external DNS.
- Postmaster responsibilities for SMTP gateways supporting inbound and outbound mail infrastructure.
- Troubleshoot DNS, DHCP, SMTP issues occurring in daily operations using diagnostic tools for packet capturing and port scanning such as tcpdump, wireshark, and nmap.
- Provide technical and end user related support for any issues relating to the systems supported by UNIX Operations.
- Build and maintain hardware/software configurations for enterprise UNIX/Linux systems.
- Develop standards and processes for the implementation and maintenance of software packages running on multi-user Servers. Software packages include, but are not limited to: multiple UNIX OS versions, clustering, disk and file management systems, backup applications, Oracle, Apache, Perl, SSH.
- Develop standards and processes for change and configuration management.
- Support, modify, and/or improve internally developed and 3rd party production, development, and QA hardware and applications.
- Monitor and optimize storage capacity, data availability, capacity usage, performance and data reporting.
- Isolate issues and correct and improve operational efficiency through changes to the software, reconfiguration of the hardware, or implementation of new processes or solutions.
- Develop tools to automate administrative tasks and offer efficient and scalable solutions to meet the demands of administering large number of Servers in an enterprise environment.
- Write proposals or papers, making presentations to internal customers and peers, and working closely with upper management.
- Lead large-scale technical projects, working with company staff and vendors to gather requirements, determine solutions, and then implement those solutions.
- Document system configurations, operating procedures, etc.
- Participate in a 24X7 on-call rotation with peers.

Qualifications:

- Minimum of five or more years experience in systems administration and engineering that included the building, configuring and support of mission critical, production systems in a large, enterprise environment.
- Minimum of five or more years experience supporting Red Hat Linux operating system platform in business-critical environment. Red Hat Certified Engineer certification highly desired.
- Experience supporting DNS, DHCP, and SMTP installations with large user base.
- Experience with SAN technologies.
- Knowledge and understanding of relational databases such as MySQL and Oracle.
- Knowledge and understanding of industry best practices for system administration in large scale, mission-critical environments.
- Ability to interpret server operational and performance characteristics.
- Ability to write Shell Scripts or applications to create custom solutions that streamline and automate business processes.
- Ability to use the resources at their disposal to gather information, formulate solutions, circulate ideas to solicit peer input, determine the right solution and implement a timely solution.
- Possess critical thinking and effective troubleshooting skills with ability to quickly and accurately determine source of a problem, identify possible solutions, select the most appropriate solution, and implement the solution in a timely manner.
- Strong dedication, work ethics, sense of teamwork, and professional attitude.
- Proven history of constantly striving for improved methodology, efficiency, and work processes.
- Strong Red Hat Linux experience.
- Solid knowledge of DNS, DHCP, SMTP protocols.
- Proficient in administration of BIND and Sendmail
- Ability to script in Shell and Perl. Solid UNIX experience and Strong Shell Scripting.