Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages

3rd Line Senior Systems Engineer

Full Time

Salary: Competitive + Pension + Holiday

About Serbus

Formed in 2010 and based in Hereford, Serbus Ltd specialise in “Securing the remote worker”, with our cornerstone being Enterprise Mobility Management.  We enable organisations to integrate mobile devices into their business process, covering initial design, procurement, integration, compliance and the ongoing fully managed service.

The Role

We have an exciting opportunity for a Senior Systems Engineer (3rdLine) to join our agile team as Technical Lead in developing and supporting our Mobile Security and Information Systems capability.  The role will include:

  • Technical lead reporting to Serbus’ CTO
  • Technical advisor providing support to junior engineers
  • Design lead for new projects and technical lead during request for change
  • Hands on 3rd Line technical support of existing systems
  • Helping to promote working practices within an ITIL service environment

What We Are Looking For


Required: Strong Linux experience, to include: IPTables, Strongswan, Open SSL
Desirable: Linux experience, to include: server build, hardening, troubleshooting, application deployment, web servers and shell scripting

System Design and Architecture

  • Required: Experience or qualifications in Network Design, network segmentation and supporting infrastructure qualification or experience
  • Desirable: Experience and qualifications in Information Security Design, interpreting requirements, network compliance, accreditation and analysing the associated risk


  • Required: Good levels of MS Windows certificate services experience or qualifications
  • Required: Very good understanding of how to build and deploy a PKI via EMM
  • Required: Good knowledge of iOS, Android within the context of working with EMM
  • Required: Strong experience or qualification in virtualisation using products such as vSphere or HyperV
  • Desirable: Experience with Windows AD, GPO, Exchange and NPS
  • Desirable: Experience with EMM platform to the level of integrating Microsoft Exchange and LDAP
  • Desirable: Strong experience of AWS or similar cloud infrastructure


  • Required: An excellent understanding of IP and TCP
  • Required: An excellent grasp of NAT, including NAT when using CISCO and IPTables
  • Required: A good level of experience or qualifications in IPSec VPNs, including site to site, remote access and CISCO Anyconnect
  • Required: A good level of experience or qualification in Firewall configuration, which might include CISCO, Juniper and PFSense products
  • Desired: Experience of mobile device VPNs, e.g. iOS native IKEv2, CISCO Anyconnect, Integration with Samsung KNOX, always on VPNs and per application VPNs
  • Desired: Experience of deploying RADIUS including 802.1x


  • Required: A thorough understanding of the CIA principles
  • Desired: Experience of making design decisions based upon security and risk
  • Desired: Experience of applying NCSC or similar organisational compliance

Personal Characteristics

  • Energetic and enthusiastic
  • Excellent verbal and written communication skills in English
  • Excellent problem-solving skills / adept at providing a workaround
  • Able to work collaboratively within a team environment
  • Adaptable and flexible

Due to the nature of the work we do successful candidates will undergo the appropriate level of security clearance specific to their employment.

Please send your CV and covering letter to:
Russ Ticehurst, Director
Tel: 01432 870879

Other opportunities: 2nd Line System Support Engineer



Posted in

Join our newsletter for similar articles directly to your inbox.

In accordance with our privacy policy we will never share your details with a 3rd party.

Back to top