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DevOps Engineer

Date: 24-Feb-2021

Location: BURY *, GB

Company: Telefónica S.A.

It’s more important than ever that we help people stay connected and the interests of our people, our customers and our communities are at the centre of everything we do.


If you are applying for any of our roles your recruitment experience with us will be a little different at this time, but as a digital company we will be using technology to make sure that we give you the best experience we can, and making sure your safety as well as that of our people is at the forefront.


Tesco Mobile is the UK’s largest mobile virtual network operator (MVNO) with over 5 million customers.  Tesco Mobile is a joint venture between 2 of the UK’s biggest brands and the combination of Tesco’s leading retail estate and O2’s network with 99% UK population coverage provides Tesco Mobile with a unique opportunity.


Note that this role can be based in either Bury or Slough


About the Team:


The Tesco Mobile DevOps team is a truly cross functional team responsible for product development as well as the day-to-day run and operate of multiple bespoke IT solutions.


Your Role:


As a DevOps Engineer in the DevOps team, you'll join a team that is responsible for supporting 24x7 production environments. You will be fixing issues, as well developing new features on our Salesforce plaform. You will be a certified Salesforce Platform Developer with with  demonstrable experience of supporting a Saleforce platform. You will be part of a wider team of Business Analysts, Testers and developers working on different technologies to support business projects.


You will have experience working with SCRUM and Kanban Agile methodologies to maintain and create new software.




  • Support business cirtical systems. Investigate and fix incidents and problems. Maintain and evolve Tesco Mobile Salesforce Platform
  • Provide 24x7 on call cover as required on a rota basis
  • Maintain and evolve DevOps monitoring and alerting capabilities – includes infrastructure performance as well as key business metrics
  • Utilise TM loggin tools (Splunk/ELK) to investigate operationanal issue, configure dashboards and alerts
  • Work closely with Information Security to ensure we keep our platforms secure
  • Engage with business analysts, developers and testers to ensure hotfixes are safely released into production, this covers new functionality as well as security patching
  • Support the development of new products, tranisitioning them into live production use.
  • Coordinate and manage software releases in to Pe-Production & Production environments. Includes support for out of hours production deployments
  • Automate repetitive tasks, developing innovative solutions for the team and wider business e.g. bots and cronjobs


Skills & experience:



  • Experience supporting a 24x7 production environment
  • Expertise in administering log data management technologies. Splunk preferred but alternatives desirable eg. Fluentd, ElasticSearch/ELK
  • Effective communication skills with an ability to collaborate and work as a team player
  • Ability to understand complex systems and issues and communicate these to both technical and non-technical people.
  • Good understanding of Agile Development practices
  • Good knowledge of GIT/Github Tools
  • Experience maintaining and developing production Linux systems [Debian]
  • Expertise of Postgresql and Mysql
  • Good knowledge of IT Service Management principles
  • Good undersanding of Information Security and related good practise 
  • Proficient a number of the following scripting languages and programming languages; PHP, Python, Java, GoLang, SQL, HTML
  • A good understanding of container orchestration technologies such as Kubernetes is desirable 
  • Knowledge of basic TCP/IP protocols (TCP, UDP, IP, DNS, HTTP)
  • Demonstrable experience managing Production AWS environments



  • 2-5 years professional development experience using Salesforce platform in a medium - large organisation
  • Azure experience would be beneficial
  • Experience in Salesforce development languages eg APEX, Lightening, Visualforce
  • Salesforce Platform Developer certifications 


Additional Information:


Regular travel to Tesco Mobile sites including (but not limited to) Slough, Bury, Leeds



We’ll be sending you emails about the status of your application. To make sure you receive these, please add and to your Safe Senders list.


We’re looking to pay a competitive salary (depending on experience) for this position. We also offer plenty of extras to sweeten the deal, which could include things like bonuses, life assurance cover, health care and lots of flexible benefits.


We also believe a great work-life balance is important, so we’re open to considering part-time and flexible approaches to working. Like to know more, feel free to raise it.


Join us and we’ll encourage you to be bold every day. So take a deep breath, your career is about to go to exciting new places.


If you have any questions around the role then please email who will be happy to help.