Sr. Linux System Administrator
Smith Micro Software, Inc. - Pittsburgh, PA

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Experienced Linux system administrator with 5+ years of hands-on experience managing hosted applications as well as installing, configuring, maintaining, securing, debugging, and monitoring Redhat Linux ES servers; application server management experience with JBoss 4.0.5/4.2 and Apache/Tomcat.

Responsibilities will include:

- Diagnose performance problems

- Deploy and support server infrastructure and applications

- Mastery of shell scripting

- Help develop tools to maintain and monitor the server, network and storage infrastructure; proactively track performance and utilization of system resources

- Deploy and support J2EE (preferably JBoss) applications into a high availability environment

- Maintain network services such as DNS, LDAP, and NTP

- Manage, monitor, and optimize on-line, near-online and off-line storage systems (NAS, SAN, NFS etc)

- Plan and implement smooth transitions between product revisions and application deployments

- Maintain documentation for systems and data storage process and procedures

Provide 24x7 on-call coverage in a rotating schedule

Experience / Skills Required:

- RedHat Linux, Windows Server, TCP/IP Networking, SSH, Bourne, Perl and shell scripting, Cisco IOS, load balancers. Familiar with network distributed computing environments and experience with running large (300 plus servers) datacenter and high transactional production environments.

- Strong shell scripting using standard conventions

- Basic network adapter configuration and routing

- Strong problem solving and analysis of system and application errors

- Configuration and use of ssh, scp, ntp, mail (sendmail)

- Strong communication skills to effectively interact with customers, vendors, and other teams to isolate and resolve issues

Strong ability to gather and quickly analyze data through dynamic scripting or managed collection of data to isolate issues

- Effective in the use of standard operating system tools and utilities to generate structured results or data in a portable manner across multiple servers

- Effective understanding and implementation of software and process protection methods to guard against security breaches and intrusion

- Effective automation and/or job scheduling skills using cron or other methods to produce repeatable results on a periodic basis

Preferred Skills:

- F5 Networks/A10 Networks hardware load balancer use of VIPs and pools

- Monitoring using SNMP, MRTG, Nagios, SolarWinds

- Understanding of commercial high-availability data center access policies

- Experience in designing and deploying environments for JBoss or J2EE application server systems with Apache/Tomcat/JBoss front end web servers and Oracle/MySQL backend databases; administration of Oracle or MySQL database, Windows/UNIX integration, experience with large RAID, SAN or NAS deployments a plus.

- Strong writing skills to effectively communicate root cause analysis and other feedback to customers and vendors

- Working knowledge of HP SiteScope, Solarwinds, or other monitoring tools

- Familiarity with dynaTrace

- Administration of Windows servers

- Administration of databases including Oracle, MySQL, and SQL Server

- Working knowledge of SQL

- Good graphing skills with Excel or other graphing tools

Education Required:

BS in Computer Science or related field OR equivalent in work experience.

Smith Micro Software, Inc. - 10 months ago - save job - block
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