The following table provides summary statistics for permanent job vacancies advertised in Croydon with a requirement for DNS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited DNS over the 3 months to 26 June 2017 with a comparison to the same period in the previous 2 years.

Domain Name System (DNS)
London / Croydon
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 25 30 36
Rank change year-on-year +5 +6  
Permanent jobs citing DNS 12 15 6
As % of all permanent IT jobs advertised in Croydon 6.35% 6.10% 3.13%
As % of the Communications & Networking category 27.27% 21.74% 16.22%
Number of salaries quoted 10 15 5
Median salary £34,500 £34,000 £25,500
Median salary % change year-on-year +1.47% +33.33%  
UK excluding London median salary £37,000 £36,500 £36,500
% change year-on-year +1.36% -  

DNS is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Croydon with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
Croydon
Permanent job vacancies with a requirement for communications and computer networking skills 44 69 37
As % of all permanent IT job vacancies advertised in Croydon 23.28% 28.05% 19.27%
Number of salaries quoted 35 66 28
Median salary £37,000 £47,500 £35,000
Median salary % change year-on-year -22.10% +35.71%  
90% offered a salary of more than £16,500 £27,350 £25,500
10% offered a salary of more than £52,500 £55,000 £55,750
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

DNS
Job Vacancy Trend in Croydon

The job posting trend of jobs advertised in Croydon citing DNS as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for DNS in Croydon

DNS
Salary Trend in Croydon

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing DNS in Croydon.

Salary trend for DNS in Croydon

DNS
Salary Histogram in Croydon

The salary distribution of IT jobs citing DNS in Croydon over the 3 months to 26 June 2017.

Salary histogram for DNS in Croydon

For the 6 months to 26 June 2017, IT jobs citing DNS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Croydon region with a requirement for DNS.

1 13 (76.47%) DHCP
1 13 (76.47%) TCP/IP
2 12 (70.59%) Windows
3 10 (58.82%) Windows Server 2008
4 9 (52.94%) Windows Server
5 8 (47.06%) Windows Server 2012
5 8 (47.06%) VMware
5 8 (47.06%) MS Exchange
5 8 (47.06%) Active Directory
6 6 (35.29%) HP
6 6 (35.29%) Cisco
6 6 (35.29%) Microsoft
6 6 (35.29%) Hyper-V
7 5 (29.41%) VMware Infrastructure
7 5 (29.41%) Clustering
7 5 (29.41%) Exchange Server 2010
7 5 (29.41%) LAN
7 5 (29.41%) ITIL
7 5 (29.41%) Microsoft Clustering
8 4 (23.53%) CoreOS
8 4 (23.53%) Data Centre
8 4 (23.53%) Citrix
8 4 (23.53%) Symantec
8 4 (23.53%) Linux
8 4 (23.53%) VoIP
8 4 (23.53%) WAN
8 4 (23.53%) Docker
8 4 (23.53%) CentOS
8 4 (23.53%) Bash Shell
9 3 (17.65%) Backup Exec

DNS
Co-occurring IT Skills in Croydon by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 8 (47.06%) MS Exchange
2 5 (29.41%) Exchange Server 2010
3 2 (11.76%) Blackberry Enterprise Server
3 2 (11.76%) IIS
3 2 (11.76%) SharePoint
Applications
1 3 (17.65%) Microsoft Office
2 2 (11.76%) MS Visio
Communications & Networking
1 13 (76.47%) DHCP
1 13 (76.47%) TCP/IP
2 5 (29.41%) LAN
3 4 (23.53%) VoIP
3 4 (23.53%) WAN
4 3 (17.65%) Firewall
4 3 (17.65%) HTTP
4 3 (17.65%) Network Security
4 3 (17.65%) SSH
4 3 (17.65%) SSL
5 2 (11.76%) BGP
5 2 (11.76%) Cisco IOS
5 2 (11.76%) OSPF
5 2 (11.76%) RTCP
5 2 (11.76%) RTP
5 2 (11.76%) STUN
5 2 (11.76%) VLAN
5 2 (11.76%) VPN
5 2 (11.76%) Wireless
6 1 (5.88%) VRRP
Database & Business Intelligence
1 2 (11.76%) SQL Server
General
1 2 (11.76%) Finance
Job Titles
1 5 (29.41%) Support Engineer
2 4 (23.53%) IT Engineer
2 4 (23.53%) IT Support
2 4 (23.53%) IT Support Engineer
2 4 (23.53%) Network Engineer
2 4 (23.53%) Operations Engineer
3 3 (17.65%) 2nd Line Engineer
3 3 (17.65%) 2nd Line Support
3 3 (17.65%) 2nd Line Support Engineer
3 3 (17.65%) Infrastructure Engineer
3 3 (17.65%) Junior
3 3 (17.65%) Network Operations Engineer
4 2 (11.76%) 3rd Line Support
4 2 (11.76%) Desktop Engineer
4 2 (11.76%) Desktop Support
4 2 (11.76%) Desktop Support Engineer
4 2 (11.76%) Junior IT Support
4 2 (11.76%) Windows Engineer
4 2 (11.76%) Windows Support Engineer
4 2 (11.76%) Wintel Engineer
Libraries, Frameworks & Software Standards
1 3 (17.65%) FreeSWITCH
Miscellaneous
1 5 (29.41%) Clustering
2 4 (23.53%) Data Centre
3 2 (11.76%) Blackberry
3 2 (11.76%) Fintech
3 2 (11.76%) Social Media
4 1 (5.88%) Analytical Skills
Operating Systems
1 12 (70.59%) Windows
2 10 (58.82%) Windows Server 2008
3 9 (52.94%) Windows Server
4 8 (47.06%) Windows Server 2012
5 4 (23.53%) CentOS
5 4 (23.53%) CoreOS
5 4 (23.53%) Linux
6 2 (11.76%) Windows 10
6 2 (11.76%) Windows 7
6 2 (11.76%) Windows Server 2003
7 1 (5.88%) Android
7 1 (5.88%) Apple iOS
7 1 (5.88%) Mac OS X
Processes & Methodologies
1 5 (29.41%) ITIL
2 3 (17.65%) Performance Tuning
3 2 (11.76%) Data Management
3 2 (11.76%) Mentoring
3 2 (11.76%) Network Design
3 2 (11.76%) Network Load Balancing
3 2 (11.76%) Server Virtualisation
3 2 (11.76%) Service Delivery
4 1 (5.88%) Configuration Management
4 1 (5.88%) DevOps
4 1 (5.88%) Time Management
Programming Languages
1 4 (23.53%) Bash Shell
2 3 (17.65%) SQL
3 1 (5.88%) Python
Qualifications
1 3 (17.65%) Degree
1 3 (17.65%) MCSA
1 3 (17.65%) MCSE
1 3 (17.65%) Microsoft Certification
2 2 (11.76%) CCNP
2 2 (11.76%) Cisco Certification
2 2 (11.76%) ITIL Foundation Certificate
2 2 (11.76%) MCP
3 1 (5.88%) CCDP
3 1 (5.88%) CCNA
3 1 (5.88%) CCSA
3 1 (5.88%) CCSE
Quality Assurance & Compliance
1 2 (11.76%) SLA
2 1 (5.88%) QA
System Software
1 8 (47.06%) Active Directory
2 6 (35.29%) Hyper-V
3 5 (29.41%) VMware Infrastructure
4 4 (23.53%) Docker
5 3 (17.65%) OpenSIPS
5 3 (17.65%) Xen
6 2 (11.76%) Firmware
6 2 (11.76%) ISA Server
6 2 (11.76%) VMware ESXi
6 2 (11.76%) XenDesktop
6 2 (11.76%) XenServer
7 1 (5.88%) BIND 9
7 1 (5.88%) iptables
7 1 (5.88%) Kamailio
7 1 (5.88%) Terminal Services
Systems Management
1 5 (29.41%) Microsoft Clustering
2 3 (17.65%) Backup Exec
2 3 (17.65%) SCOM
3 2 (11.76%) HP SIM
3 2 (11.76%) Nagios
3 2 (11.76%) Norton AntiVirus
3 2 (11.76%) OpenView
4 1 (5.88%) Ansible
4 1 (5.88%) FortiGate
4 1 (5.88%) HAProxy
4 1 (5.88%) Puppet
4 1 (5.88%) SCCM
Vendors
1 8 (47.06%) VMware
2 6 (35.29%) Cisco
2 6 (35.29%) HP
2 6 (35.29%) Microsoft
3 4 (23.53%) Citrix
3 4 (23.53%) Symantec
4 2 (11.76%) Dell
5 1 (5.88%) CheckPoint
5 1 (5.88%) F5
5 1 (5.88%) Juniper
5 1 (5.88%) Meraki
5 1 (5.88%) Riverbed
5 1 (5.88%) SolarWinds
5 1 (5.88%) SonicWALL
5 1 (5.88%) Sophos
5 1 (5.88%) Veritas
5 1 (5.88%) WatchGuard