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Ziron - Junior Linux Systems Administrator (Office based), near Oxford, UK Ziron is building a new generation of telecommunications operator, where APIs are at the heart of the service – and not just an afterthought. As part of our rapid expansion we’re looking for a Junior Linux Systems Administrator to help expand our team at our Oxfordshire (UK) office, based in a beautiful listed former milking shed on a farm just outside Bicester. Reporting to the CTO and working as part of a team based in the UK, US and Australia, you’ll be primarily responsible for monitoring, supporting and developing the company’s Linux-based voice and messaging platform. You’ll also be expected to assist with customer support enquiries, plus help diagnose and resolve any issues relating to third party suppliers. You’ll need to have: Good working knowledge of Linux (Centos) Good working knowledge of MySQL Experience of supporting web applications (PHP) Bonus points if you have: Knowledge of REST APIs Used JIRA, Confluence, Zendesk before Incident and problem management experience Basic IP networking knowledge Previous experience working in a customer support role Experience of noSQL technologies (e.g. Redis, MongoDB) Experience of FreeSWITCH, Kamailio, Kannel Understand any of the following: SIP, RTP, RTMP, WEBRTC, SMPP, SS7, SIGTRAN, ISUP, MAP Know how to use Git Don’t mind the occasional out of hours / weekend work What we’ll give you in return: A competitive salary with regular reviews 28 days paid holiday (inclusive of public holidays) A shiny new Macbook Air Fast-track career advancement Healthcare and company pension Free snacks and drinks A Fitbit and company contribution to gym/fitness centre membership to balance up those free snacks and drinks The chance to be part of a fast growing team in an exciting environment * Please ensure you have the right to work in the UK before applying. Sorry, no sponsorship or relocation package * Interested? Please email your CV and a covering note to jobs@ziron.com or visit https://ziron.recruiterbox.com/jobs/fk08qj/ to apply