Senior System Administrator

Senior System Administrator is an integral member of the infrastructure team responsible for managing company’s infrastructure systems, installing and maintaining the operating system software, creating networking and system structures, debugging malfunctioning programs, managing backup policies and building system backup environments, and regularly maintaining the system security. To ensure success as a Senior System Administrator, he/she should have extensive experience with Operating Systems and Networking concepts and monitoring tools, excellent problem-solving skills, and hands-on experience with systems and network management. Ultimately, a top-level senior system administrator can expertly manage a company’s infrastructure systems to maximize performance and efficiency by automating with in-house developed scripts. Responsibilities include installing, maintaining and monitoring operating systems, network structures, finding and debugging malfunctioning programs affecting system integrity and performance, altering system and network structures to meet evolving company needs, creating autonomous system backups, setting up system monitoring environments, maintaining system availability, and regularly monitoring & updating system security protocols. Monthly scheduled on-call system monitoring during out of office hours and weekends is also required.

Proven work experience on Linux based Operating Systems. Recent experience with web based (ideally java based) technologies is a MUST. Good Experience in VMware vSphere installation, management tuning and performance monitoring. Experienced in NGINX configuration, performance monitoring, tuning and troubleshooting. Experienced in system and network design, shell (or python) scripting and documentation. Good knowledge in network and OS monitoring and problem troubleshooting and performance tuning. Familiarity with Network IPSEC tunnel setups on Linux. Very good experience with JAVA-based application run time parameter tuning, monitoring and problem troubleshooting. Experienced in Nagios/Zabbix/PRTG like infrastructure and network monitoring tools. Experienced in building backup methodologies and tools. Excellent communication and problem-solving skills. Compatibility with flexible working hours.