Period
to 18 January 2019

The table below looks at the prevalence of the term Clustering in permanent job vacancies. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 18 January 2019 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
18 Jan 2019
Same period 2018 Same period 2017
Rank 481 434 398
Rank change year-on-year -47 -36 -66
Permanent jobs citing Clustering 888 1,210 1,349
As % of all permanent IT jobs advertised in the UK 0.59% 0.70% 0.76%
As % of the Miscellaneous category 1.40% 1.72% 1.92%
Number of salaries quoted 752 1,052 1,103
UK median annual salary £50,000 £50,000 £50,000
10th Percentile £33,750 £32,750 £32,000
90th Percentile £79,875 £77,500 £71,250
UK excluding London median annual salary £43,375 £45,000 £45,750
% change year-on-year -3.61% -1.64% +1.67%

Clustering is in the Generic IT Skills category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for generic IT skills.

All Generic IT Skills
UK
Permanent vacancies with a requirement for generic IT skills 63,348 70,492 70,138
As % of all permanent IT jobs advertised in the UK 41.83% 40.53% 39.56%
Number of salaries quoted 48,569 54,307 57,329
UK median annual salary £52,500 £50,000 £50,000
Median salary % change year-on-year +5.00% - +4.85%
10th Percentile £30,000 £28,250 £27,500
90th Percentile £87,500 £82,500 £81,000
UK excluding London median annual salary £45,000 £43,500 £42,500
% change year-on-year +3.45% +2.35% -

Clustering
Job Vacancy Trend

Job postings citing Clustering as a percentage of all IT jobs advertised.

Job vacancy trend for Clustering in the UK

Clustering
Salary Trend

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

Salary trend for Clustering in the UK

Clustering
Salary Histogram

The salary distribution of IT jobs citing Clustering over the 6 months to 18 January 2019.

Salary histogram for Clustering in the UK

Clustering
Top 16 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clustering within the UK over the 6 months to 18 January 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -51 833 £50,000 - 112
UK excluding London -68 469 £43,375 -3.61% 71
London -8 392 £60,000 - 49
South East -69 159 £47,500 - 19
North of England -5 105 £40,000 - 17
Midlands +20 102 £43,250 +1.76% 9
North West +32 67 £41,595 -6.53% 10
West Midlands +25 57 £43,250 +3.90% 6
South West +38 46 £55,000 +10.00% 10
East Midlands +9 45 £32,500 -23.53% 3
Yorkshire -27 32 £35,000 -6.67% 6
Scotland +15 22 £38,250 -10.00% 6
East of England +2 22 £70,000 +48.94% 8
Wales +15 10 £41,250 +7.14% 2
North East -4 7 £40,000 +3.23% 1
Northern Ireland - 4 £25,000 -

For the 6 months to 18 January 2019, IT jobs citing Clustering also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for Clustering.

1 523 (58.90%) Windows
2 414 (46.62%) SQL
3 413 (46.51%) Microsoft
4 388 (43.69%) SQL Server
5 354 (39.86%) VMware
6 349 (39.30%) Windows Server
7 313 (35.25%) Active Directory
8 282 (31.76%) Linux
9 247 (27.82%) High Availability
10 237 (26.69%) Microsoft Azure
11 217 (24.44%) VMware Infrastructure
12 195 (21.96%) DNS
13 190 (21.40%) Windows Server 2008
14 188 (21.17%) Finance
15 180 (20.27%) Windows Server 2012
16 169 (19.03%) Hyper-V
17 167 (18.81%) Replication
18 161 (18.13%) Cisco
18 161 (18.13%) Microsoft Clustering
19 156 (17.57%) PowerShell
20 152 (17.12%) DHCP
21 150 (16.89%) ITIL
22 149 (16.78%) Disaster Recovery
22 149 (16.78%) SQL Server Integration Services
23 138 (15.54%) SAN
24 135 (15.20%) Oracle
24 135 (15.20%) Firewall
25 134 (15.09%) Amazon AWS
25 134 (15.09%) Infrastructure Engineering
26 133 (14.98%) Citrix

Clustering
Co-occurring IT Skills 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
1 117 (13.18%) MS Exchange
2 92 (10.36%) IIS
3 65 (7.32%) SharePoint
4 37 (4.17%) Exchange Server 2010
5 34 (3.83%) Exchange Server 2013
6 32 (3.60%) Tomcat
7 26 (2.93%) Skype for Business
8 24 (2.70%) BizTalk Server
9 22 (2.48%) Apache
10 21 (2.36%) Exchange Server 2007
11 20 (2.25%) Elasticsearch
12 13 (1.46%) CMS
12 13 (1.46%) nginx
13 12 (1.35%) SharePoint 2013
14 11 (1.24%) Confluence
14 11 (1.24%) Exchange Server 2003
15 8 (0.90%) OpenStack
15 8 (0.90%) Oracle Application Server
16 7 (0.79%) SAS
17 6 (0.68%) WebSphere
Applications
1 23 (2.59%) Microsoft Office
2 7 (0.79%) Microsoft Excel
2 7 (0.79%) MS Visio
3 2 (0.23%) Microsoft PowerPoint
4 1 (0.11%) InfoPath
Business Applications
1 3 (0.34%) Infor M3
2 2 (0.23%) Dynamics CRM
3 1 (0.11%) SAP ERP
3 1 (0.11%) Siebel Analytics
Cloud Services
1 237 (26.69%) Microsoft Azure
2 134 (15.09%) Amazon AWS
3 107 (12.05%) Office 365
4 48 (5.41%) IaaS
5 43 (4.84%) Azure Active Directory
6 40 (4.50%) Google Cloud Platform
7 33 (3.72%) SaaS
8 23 (2.59%) Cloud Computing
9 21 (2.36%) PaaS
10 20 (2.25%) Amazon EC2
10 20 (2.25%) Amazon ELB
11 16 (1.80%) Amazon EMR
11 16 (1.80%) Amazon S3
12 14 (1.58%) AWS CloudFormation
13 7 (0.79%) Amazon Kinesis
13 7 (0.79%) Cloudflare
13 7 (0.79%) GitHub
14 6 (0.68%) Mimecast
15 4 (0.45%) Amazon ElastiCache
15 4 (0.45%) OneDrive
Communications & Networking
1 195 (21.96%) DNS
2 152 (17.12%) DHCP
3 138 (15.54%) SAN
4 135 (15.20%) Firewall
5 111 (12.50%) TCP/IP
6 97 (10.92%) WAN
7 90 (10.14%) VLAN
8 76 (8.56%) LAN
9 51 (5.74%) VPN
10 49 (5.52%) Internet
11 36 (4.05%) Network Security
11 36 (4.05%) Wireless
12 35 (3.94%) iSCSI
13 32 (3.60%) NetScaler
14 31 (3.49%) MPLS
15 29 (3.27%) HTTP
15 29 (3.27%) Unified Communications
15 29 (3.27%) VoIP
16 28 (3.15%) NAS
17 24 (2.70%) Cisco Nexus
Database & Business Intelligence
1 388 (43.69%) SQL Server
2 149 (16.78%) SQL Server Integration Services
3 133 (14.98%) SQL Server Reporting Services
4 116 (13.06%) SQL Server 2008
5 115 (12.95%) MySQL
6 91 (10.25%) SQL Server 2012
7 90 (10.14%) SQL Server 2014
7 90 (10.14%) SQL Server Analysis Services
8 82 (9.23%) SQL Server 2016
9 62 (6.98%) Relational Database
10 60 (6.76%) Data Warehouse
11 57 (6.42%) MongoDB
12 54 (6.08%) NoSQL
13 52 (5.86%) Amazon RDS
13 52 (5.86%) PostgreSQL
14 40 (4.50%) RDBMS
15 39 (4.39%) Oracle Database
16 36 (4.05%) Big Data
17 33 (3.72%) Hadoop
18 27 (3.04%) SQL Server 2005
Development Applications
1 27 (3.04%) Git (software)
2 24 (2.70%) Jenkins
3 19 (2.14%) TeamCity
4 18 (2.03%) Subversion
5 16 (1.80%) Octopus Deploy
6 14 (1.58%) Visual Studio
7 13 (1.46%) Team Foundation Server
8 9 (1.01%) JIRA
9 8 (0.90%) Maven
10 7 (0.79%) Visual Studio Team System
11 6 (0.68%) Atlassian Bamboo
12 5 (0.56%) Eclipse
13 3 (0.34%) git-flow
13 3 (0.34%) Sonatype Nexus
13 3 (0.34%) Travis CI
14 2 (0.23%) Cucumber
14 2 (0.23%) JMeter
14 2 (0.23%) Mercurial
14 2 (0.23%) Xdebug
15 1 (0.11%) Introscope
General
1 188 (21.17%) Finance
2 60 (6.76%) Banking
3 32 (3.60%) Retail
4 19 (2.14%) Marketing
5 18 (2.03%) Legal
5 18 (2.03%) Telecoms
6 13 (1.46%) Advertising
6 13 (1.46%) Manufacturing
7 7 (0.79%) Billing
7 7 (0.79%) Electronics
8 6 (0.68%) Law
8 6 (0.68%) Publishing
9 5 (0.56%) Financial Institution
10 4 (0.45%) Military
10 4 (0.45%) Spanish Language
11 3 (0.34%) Aerospace
11 3 (0.34%) Back Office
11 3 (0.34%) Games
12 1 (0.11%) Automotive
12 1 (0.11%) German Language
Job Titles
1 274 (30.86%) DBA
2 228 (25.68%) SQL DBA
3 190 (21.40%) Administrator
4 113 (12.73%) Infrastructure Engineer
5 96 (10.81%) SQL Server DBA
6 68 (7.66%) Analyst
7 55 (6.19%) 3rd Line Engineer
8 48 (5.41%) Developer
9 47 (5.29%) Systems Administrator
10 43 (4.84%) Architect
11 41 (4.62%) Support Engineer
11 41 (4.62%) Systems Engineer
12 40 (4.50%) Senior DBA
13 37 (4.17%) Senior SQL DBA
14 34 (3.83%) 3rd Line Support
15 33 (3.72%) IT Engineer
16 31 (3.49%) DevOps Engineer
16 31 (3.49%) Infrastructure Support
16 31 (3.49%) Linux Engineer
17 29 (3.27%) Microsoft Engineer
Libraries, Frameworks & Software Standards
1 36 (4.05%) .NET
2 32 (3.60%) RabbitMQ
2 32 (3.60%) Web Services
3 23 (2.59%) Kafka
3 23 (2.59%) LDAP
4 18 (2.03%) WCF
5 16 (1.80%) .NET Framework
5 16 (1.80%) ActiveMQ
6 14 (1.58%) JSON
7 13 (1.46%) XMPP
8 12 (1.35%) EDI
8 12 (1.35%) EDIFACT
8 12 (1.35%) Entity Framework
8 12 (1.35%) JMS
8 12 (1.35%) Middleware
8 12 (1.35%) RESTful
9 10 (1.13%) ADSI
9 10 (1.13%) Spring
9 10 (1.13%) WSH
10 9 (1.01%) ASP.NET
Miscellaneous
1 167 (18.81%) Replication
2 128 (14.41%) Data Centre
3 45 (5.07%) Analytical Skills
4 36 (4.05%) PKI
5 29 (3.27%) Self-Motivation
6 24 (2.70%) EMC VNX
7 21 (2.36%) Enterprise Storage
8 17 (1.91%) Linux Command Line
9 15 (1.69%) Fat Client
9 15 (1.69%) Management Information System
9 15 (1.69%) Thin Client
10 14 (1.58%) HACMP
11 13 (1.46%) Hybrid Cloud
11 13 (1.46%) Public Cloud
12 12 (1.35%) Driving Licence
13 11 (1.24%) Client/Server
14 10 (1.13%) Hedge funds
15 9 (1.01%) Fintech
15 9 (1.01%) N-Tier
15 9 (1.01%) Private Cloud
Operating Systems
1 523 (58.90%) Windows
2 349 (39.30%) Windows Server
3 282 (31.76%) Linux
4 190 (21.40%) Windows Server 2008
5 180 (20.27%) Windows Server 2012
6 99 (11.15%) Red Hat Enterprise Linux
7 78 (8.78%) Unix
8 67 (7.55%) Windows Server 2003
9 37 (4.17%) Windows 10
10 32 (3.60%) AIX
10 32 (3.60%) CentOS
10 32 (3.60%) Solaris
10 32 (3.60%) Ubuntu
11 30 (3.38%) Windows 7
12 16 (1.80%) Windows 8
13 10 (1.13%) FreeBSD
14 9 (1.01%) Oracle Linux
15 7 (0.79%) Windows 2000
16 6 (0.68%) SUSE
17 5 (0.56%) Debian
Processes & Methodologies
1 247 (27.82%) High Availability
2 150 (16.89%) ITIL
3 149 (16.78%) Disaster Recovery
4 134 (15.09%) Infrastructure Engineering
5 119 (13.40%) Load Balancing
6 115 (12.95%) Performance Tuning
7 103 (11.60%) DevOps
8 94 (10.59%) Agile Software Development
9 83 (9.35%) Problem-Solving
10 80 (9.01%) Migration
11 71 (8.00%) Business Intelligence
12 69 (7.77%) Capacity Planning
13 62 (6.98%) Change Management
14 53 (5.97%) Service Management
15 52 (5.86%) Network Load Balancing
16 49 (5.52%) Mentoring
16 49 (5.52%) Patch Management
16 49 (5.52%) Problem Management
17 48 (5.41%) Configuration Management
18 47 (5.29%) Change Control
Programming Languages
1 414 (46.62%) SQL
2 156 (17.57%) PowerShell
3 111 (12.50%) T-SQL
4 93 (10.47%) Python
5 64 (7.21%) Java
6 44 (4.95%) C#
7 38 (4.28%) Bash Shell
8 34 (3.83%) Ruby
9 32 (3.60%) VBScript
10 30 (3.38%) JavaScript
11 27 (3.04%) Shell Script
12 24 (2.70%) Go
12 24 (2.70%) Perl
13 16 (1.80%) PL/SQL
14 13 (1.46%) VB
15 12 (1.35%) ActionScript
15 12 (1.35%) ActionScript 2.0
16 10 (1.13%) PHP
17 9 (1.01%) Java 8
18 8 (0.90%) Korn
Qualifications
1 118 (13.29%) Microsoft Certification
2 66 (7.43%) MCSE
3 65 (7.32%) Cisco Certification
4 63 (7.09%) VMware Certified Professional (VCP)
5 57 (6.42%) Degree
6 49 (5.52%) MCSA
7 39 (4.39%) CCNA
8 37 (4.17%) CCNP
9 32 (3.60%) Security Cleared
10 29 (3.27%) SC Cleared
11 23 (2.59%) ITIL Certification
12 21 (2.36%) MCITP
13 18 (2.03%) Citrix Certification
14 16 (1.80%) CCIE
14 16 (1.80%) MCP
15 15 (1.69%) Computer Science Degree
16 14 (1.58%) RHCE
17 13 (1.46%) CCVP
18 12 (1.35%) CCA
18 12 (1.35%) CCAA
Quality Assurance & Compliance
1 46 (5.18%) SLA
2 26 (2.93%) ISO/IEC 27001
3 22 (2.48%) GDPR
4 18 (2.03%) QA
5 11 (1.24%) PMO
6 7 (0.79%) PCI DSS
7 4 (0.45%) Data Quality
8 1 (0.11%) COBIT
8 1 (0.11%) Cyber Essentials
8 1 (0.11%) HIPAA
8 1 (0.11%) ISO/IEC 20000
8 1 (0.11%) PSD2
8 1 (0.11%) Sarbanes-Oxley
System Software
1 313 (35.25%) Active Directory
2 217 (24.44%) VMware Infrastructure
3 169 (19.03%) Hyper-V
4 57 (6.42%) Docker
5 48 (5.41%) XenApp
6 40 (4.50%) VMware ESXi
7 32 (3.60%) vSphere
8 31 (3.49%) DFS Replication
9 29 (3.27%) Virtual Machines
10 27 (3.04%) XenDesktop
11 21 (2.36%) Virtual Servers
12 19 (2.14%) Oracle RAC
13 18 (2.03%) Microsoft App-V
14 14 (1.58%) GPFS
15 12 (1.35%) NFS
16 10 (1.13%) Veritas Cluster Server
17 9 (1.01%) Postfix
18 8 (0.90%) Oracle Clusterware
18 8 (0.90%) PowerHA
19 7 (0.79%) Microsoft Virtual Server
Systems Management
1 161 (18.13%) Microsoft Clustering
2 97 (10.92%) Failover Clustering
3 86 (9.68%) SCCM
4 63 (7.09%) SCOM
5 55 (6.19%) Ansible
6 45 (5.07%) Opscode Chef
6 45 (5.07%) Puppet
7 35 (3.94%) WSUS
8 33 (3.72%) Nagios
9 29 (3.27%) Terraform
10 27 (3.04%) Kubernetes
11 24 (2.70%) vCenter Server
12 22 (2.48%) Backup Exec
13 21 (2.36%) Prometheus
14 19 (2.14%) Docker Swarm
15 16 (1.80%) Linux-HA
15 16 (1.80%) ZABBIX
16 14 (1.58%) Cisco CUCM
17 13 (1.46%) Cisco UCCE
17 13 (1.46%) Cisco UCCX
Vendors
1 413 (46.51%) Microsoft
2 354 (39.86%) VMware
3 161 (18.13%) Cisco
4 135 (15.20%) Oracle
5 133 (14.98%) Citrix
6 92 (10.36%) HP
7 82 (9.23%) Red Hat
8 56 (6.31%) SolarWinds
9 54 (6.08%) IBM
10 42 (4.73%) Veeam
11 41 (4.62%) EMC
12 38 (4.28%) NetApp
13 35 (3.94%) Veritas
14 34 (3.83%) Dell
14 34 (3.83%) Symantec
15 32 (3.60%) Google
16 26 (2.93%) SAP
17 19 (2.14%) Ivanti
17 19 (2.14%) RedGate
18 18 (2.03%) CommVault