Senior Linux Systems Infrastucture Engineer - DevOps - Mobile

Aspirecom Limited
United Kingdom
£65-70,000 plus bonus and benefits
27 Sep 2017
03 Nov 2017
Contract Type
Full Time
Senior Linux Systems Infrastructure Engineer needed bya company that provides real-time communications products to Mobile Network Operators. With direct interconnects with major operators, theyhandle a large amount of real-time data, to support arrange of mobile services and products. The role has flexible hours along with home or office working. Job Description Reporting directly into the CTO. To succeed in this role you will need be a detail-oriented and self organising person. Someone that is a self-starter, and loves to learn. They need someone that can communicate well, both orally and in writing. ESSENTIAL SKILS/EXPERIENCE * Ability to take ownership of problems and present solutions. Be able to marry business requirements with technical solutions * Experience running systems administration for a medium to large sized organization with 100+ nodes. * Several years of Systems administration/Engineering and maintenance of Linux operating systems used in the development, management and delivery of Web/Voice based products. * Server Configuration management with Puppet. * Installing, configuring, tuning and maintaining NGINX, HAproxy, Python/uWSGI, PHP-FPM and MySQL. * Troubleshooting and resolving faults on supported systems within service level agreements. * Scripting experience in shell (Bash,SH, etc), Perl or Python * Solid understanding of HTTP, DNS & SSL. * Understanding of networking fundamentals (VLANs, Routing, BGP) * Experience setting up and using monitoring solutions and graphing tools such as Nagios and Munin/Cacti. * Experience supporting bespoke applications in a rapidly changing environment. * Experience implementing site backup strategies to ensure that we can recover sites from backups quickly and easily. * Working knowledge of Virtualization solutions. * Basic understanding of configuration and management of Cisco and HPE Networking infrastructure (ASA, Routers, Switches) * Working knowledge of private cloud technologies NICE TO HAVE: * Knowledge of scripting and hosting web applications (Python/Django, WSGI). * Experience working with private cloud object storage platforms * Experience designing and delivering a systems administration strategy within a medium to large sized organization. * Experience in VoIP networks or telecommunications protocols * Experience of Release Management and deployment tools. * Experience designing and implementing BCP strategies. * MySQL DB Administration experience RESPONSIBILITIES * Managing and monitoring all installed systems and infrastructure * Installing configuring, testing, and maintaining operating systems, application software, and system management tools * Ensuring the highest levels of systems and infrastructure availability SOFTWARE & APPLICATIONS * Linux based operating systems (primarily Ubuntu LTS/Debian) * Dell Server Hardware support and management * Nginx * Puppet (2.7+) * Bind 9 (and other DNS protocols) * Postfix (and other SMTP protocols) * HAproxy * Nagios, Check_MK (pnp4nagios, nagvis, SNMP) * MySQL/MariaDB (Replication) * Bash, Python * uWSGI * PHP-FPM * GIT, SVN (Repository Management) * Freeswitch (1.4/1.6) * Kamailio * Ticket and WIKI Management Systems (Jira, Confluence, Zendesk) * Cisco Operating System (ISRs/IOS) via CLI * VMware ESXi
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