Senior Infrastructure Engineer

The Company:

An exciting opportunity has arisen to join CSL a leading international Critical Connectivity provider specialising in Machine-to-Machine (M2M) communications.

CSL’s solutions, platform and partnerships with Mobile Network Operators across Europe provide complete end-to-end connectivity solutions for Security, Fire, Health and other mission critical M2M applications. The rapidly expanding private-equity backed company are market leaders in the Security and Health Sectors with operations in the UK, Ireland, Nordics and Benelux.

CSL has a great team of individuals delivering a high level of customer support and projects in a busy environment. Whether you’re looking for a new start, or looking for a move in to a company where you really make a difference, CSL could be the platform you are looking for. 

The Person:

CSL are looking for a Senior Infrastructure Engineer who is able to hit the ground running delivering and troubleshooting complex Networks and Systems. Taking ownership of problems and providing solutions.

The role is an exceptional opportunity for the right, ambitious person, looking for an opportunity to join a very high class team. We need a Technical role model for members of the Infrastructure team.

The Role:

As the Senior Infrastructure Engineer (VMware, Active Directory, Exchange and Cisco Network) you will be responsible for effective design, provisioning, installation/configuration, implementation, operation, and the maintenance of systems hardware, software and related infrastructure.

Duties & Responsibilities:

This role will encompass a range of responsibilities including but not limited to:

  • Building, configuration and installation (Server / System / Application) within Production and all Pre Prod environments)
  • Supporting / maintaining / monitoring the automated / manual batch processes and all Operational tasks
  • Proactively monitor the Internal Infrastructure to ensure internal reporting capability meets SLA
  • Management / development and integrating of systems management / monitoring tools
  • Managing security and patch updates
  • Performance fine tuning and optimisation
  • Proactive capacity, performance and availability management of all environments
  • Providing technical expertise to resolve Operational problems
  • Provide technical consultancy as required
  • Ensure complete adherence of Change Management processes
  • Management of Rack Space in our Data Centres
  • Managing issues/risks and escalating as appropriate
  • Creating and maintaining support documentation
  • Managing / working with key 3rd party suppliers
  • Maintaining awareness of industry trends / new technology
  • Implement system backup procedures
  • Provide Support to Junior team members
  • Will be expected to play key technical resources / technical lead roles in delivery of critical Business Projects
  • Take ownership of the Request fulfilment
  • Take overall ownership of Incident Management

Key Skills & Qualifications Required:


  • Virtualisation Technologies (VMware)
  • Windows Enterprise Domain Environments
  • MS Office 365 and Exchange online
  • Understanding of Microsoft SQL, SharePoint, MS Office 365 and Exchange online.
  • Active Directory Services
  • Experience of Server infrastructure
  • Azure Cloud for infrastructure services


  • Site to Site IPsec Tunnels
  • An excellent understanding of networking principles.
  • Cisco Routing Protocols (BGP, RIP, OSPF and EIGRP)
  • Cisco Switches – Layer 3 and 2 (Cisco 3750x and 9300x)
  • Experience in ASA55xx Firewalls, Cisco 29xx and 28xx Routers

Must hold the following Professional Certifications: MSCE, CCNP

Desirable: ITIL, VCP, RemedyForce

If you have the above skills please apply now with an indication of your salary expectations for the role. With regret, due to the high volume of applications we are currently receiving, only successful candidates will be contacted.

CSL operates as an equal opportunities employer and we welcome all applications regardless of gender, race, disability, sexual orientation, religion or belief, age, gender reassignment, marital or civil partnership status, pregnancy or maternity

To apply please contact:

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