Period
to 18 February 2018

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 February 2018 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
18 Feb 2018
Same period 2017 Same period 2016
Rank 443 403 327
Rank change year-on-year -40 -76 -58
Permanent jobs citing Clustering 1,145 1,308 2,101
As % of all permanent IT jobs advertised in the UK 0.66% 0.75% 1.00%
As % of the Miscellaneous category 1.58% 1.84% 2.36%
Number of salaries quoted 988 1,090 1,763
UK median annual salary £50,000 £50,000 £50,000
10th Percentile £32,500 £32,000 £33,800
90th Percentile £77,500 £72,500 £73,750
UK excluding London median annual salary £45,000 £45,000 £45,000

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 72,656 70,988 89,197
As % of all permanent IT jobs advertised in the UK 41.70% 40.65% 42.33%
Number of salaries quoted 57,054 58,029 71,630
UK median annual salary £50,000 £50,000 £48,000
Median salary % change year-on-year - +4.17% +6.67%
10th Percentile £27,500 £27,500 £27,500
90th Percentile £82,500 £81,250 £80,000
UK excluding London median annual salary £43,000 £42,500 £42,500
% change year-on-year +1.18% - +6.25%

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 February 2018.

Salary histogram for Clustering in the UK

Clustering
Top 15 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 February 2018. 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 -38 1,097 £50,000 - 126
UK excluding London -23 703 £45,000 - 94
London -52 429 £62,500 +13.64% 37
South East +7 286 £45,000 -5.26% 29
North of England -66 156 £38,750 -13.89% 23
Midlands +30 118 £45,000 +12.50% 17
Yorkshire -9 72 £37,500 -23.47% 8
North West -65 66 £44,000 +3.53% 15
West Midlands +24 61 £38,750 -3.13% 5
East Midlands +36 57 £47,500 +11.76% 12
East of England -12 57 £47,000 -3.59% 9
South West +2 54 £50,000 +33.33% 11
Scotland -20 27 £42,500 +1.80% 2
North East -26 20 £36,250 +20.83%
Wales -2 7 £38,500 -3.75% 3

For the 6 months to 18 February 2018, 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.

1 601 (52.49%) Windows
2 586 (51.18%) SQL Server
3 559 (48.82%) SQL
4 500 (43.67%) Microsoft
5 372 (32.49%) VMware
6 358 (31.27%) Active Directory
7 353 (30.83%) Windows Server
8 299 (26.11%) Linux
8 299 (26.11%) Finance
9 268 (23.41%) SAN
10 259 (22.62%) Performance Tuning
11 246 (21.48%) VMware Infrastructure
12 244 (21.31%) Windows Server 2012
13 240 (20.96%) Cisco
14 227 (19.83%) High Availability
15 225 (19.65%) PowerShell
16 223 (19.48%) SQL Server Integration Services
17 203 (17.73%) Hyper-V
18 201 (17.55%) Microsoft Azure
19 196 (17.12%) Oracle
20 195 (17.03%) Firewall
21 191 (16.68%) Windows Server 2008
22 188 (16.42%) Replication
23 174 (15.20%) ITIL
24 173 (15.11%) MS Exchange
24 173 (15.11%) Data Centre
25 172 (15.02%) DNS
26 171 (14.93%) Agile Software Development
27 170 (14.85%) DevOps
28 169 (14.76%) SQL Server Reporting Services

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
1 173 (15.11%) MS Exchange
2 159 (13.89%) IIS
3 120 (10.48%) Exchange Server 2010
4 88 (7.69%) SharePoint
5 58 (5.07%) Exchange Server 2013
6 54 (4.72%) CMS
6 54 (4.72%) Skype for Business
7 52 (4.54%) Apache
8 47 (4.10%) Apache Spark
9 41 (3.58%) Elasticsearch
10 34 (2.97%) WebLogic
11 33 (2.88%) Tomcat
12 28 (2.45%) Exchange Server 2007
13 22 (1.92%) Exchange Server 2003
13 22 (1.92%) SharePoint 2010
14 21 (1.83%) BizTalk Server
15 17 (1.48%) Confluence
16 16 (1.40%) Apache Pig
17 15 (1.31%) SharePoint 2013
17 15 (1.31%) WebSphere
Applications
1 14 (1.22%) Microsoft Office
2 5 (0.44%) Microsoft Excel
2 5 (0.44%) Microsoft Project
2 5 (0.44%) MS Visio
3 4 (0.35%) Microsoft PowerPoint
4 1 (0.087%) S-PLUS
Business Applications
1 11 (0.96%) Dynamics CRM
1 11 (0.96%) Oracle Procure-to-Pay
2 9 (0.79%) HFM
3 3 (0.26%) Oracle EBS
4 2 (0.17%) Distributed Ledger
5 1 (0.087%) BusinessWorks
5 1 (0.087%) Oracle 11i
5 1 (0.087%) Remedy ITSM
5 1 (0.087%) Salesforce.com CRM
5 1 (0.087%) SAP Business One
Cloud Services
1 201 (17.55%) Microsoft Azure
2 154 (13.45%) Amazon AWS
3 76 (6.64%) Office 365
4 38 (3.32%) IaaS
5 30 (2.62%) Amazon EMR
6 28 (2.45%) Azure Active Directory
7 26 (2.27%) Amazon Kinesis
8 24 (2.10%) GitHub
9 21 (1.83%) SaaS
10 15 (1.31%) Cloud Computing
11 14 (1.22%) PaaS
12 8 (0.70%) Virtual Private Cloud
13 5 (0.44%) Amazon S3
13 5 (0.44%) AWS Lambda
13 5 (0.44%) Google Cloud Platform
13 5 (0.44%) npm
13 5 (0.44%) Oracle CX
13 5 (0.44%) Serverless
14 3 (0.26%) Amazon EC2
14 3 (0.26%) OpenShift
Communications & Networking
1 268 (23.41%) SAN
2 195 (17.03%) Firewall
3 172 (15.02%) DNS
4 164 (14.32%) TCP/IP
5 141 (12.31%) WAN
6 130 (11.35%) DHCP
7 90 (7.86%) IPsec
8 82 (7.16%) VoIP
9 78 (6.81%) LAN
10 75 (6.55%) HTTP
11 74 (6.46%) SSL
12 73 (6.38%) Cisco Nexus
13 72 (6.29%) VPN
14 71 (6.20%) Wireless
15 70 (6.11%) MPLS
16 67 (5.85%) BGP
17 66 (5.76%) OSPF
18 62 (5.41%) NAS
19 57 (4.98%) Unified Communications
20 56 (4.89%) Ethernet
Database & Business Intelligence
1 586 (51.18%) SQL Server
2 223 (19.48%) SQL Server Integration Services
3 169 (14.76%) SQL Server Reporting Services
4 148 (12.93%) SQL Server 2008
5 125 (10.92%) MySQL
6 115 (10.04%) SQL Server Analysis Services
7 112 (9.78%) SQL Server 2016
8 110 (9.61%) Oracle Database
9 100 (8.73%) Data Warehouse
10 86 (7.51%) MongoDB
11 80 (6.99%) SQL Server 2012
12 69 (6.03%) SQL Server 2014
13 58 (5.07%) Big Data
13 58 (5.07%) NoSQL
14 50 (4.37%) Relational Database
15 47 (4.10%) Hadoop
16 44 (3.84%) Microsoft Analysis Services
17 35 (3.06%) Apache Cassandra
17 35 (3.06%) Oracle Database 11g
18 34 (2.97%) Amazon RDS
Development Applications
1 65 (5.68%) TeamCity
2 58 (5.07%) Octopus Deploy
3 55 (4.80%) Git (software)
4 51 (4.45%) JIRA
5 38 (3.32%) MSBuild
6 37 (3.23%) Visual Studio
7 32 (2.79%) Team Foundation Server
8 27 (2.36%) Jenkins
9 18 (1.57%) Atlassian Bamboo
10 17 (1.48%) Travis CI
11 16 (1.40%) Subversion
12 14 (1.22%) SQL Server Management Studio (SSMS)
13 12 (1.05%) Bower
13 12 (1.05%) Grunt
13 12 (1.05%) gulp
14 8 (0.70%) IntelliJ
14 8 (0.70%) JUnit
14 8 (0.70%) SoapUI
15 7 (0.61%) Maven
16 6 (0.52%) Selenium
General
1 299 (26.11%) Finance
2 130 (11.35%) Banking
3 63 (5.50%) Retail
4 62 (5.41%) Advertising
5 47 (4.10%) Marketing
6 21 (1.83%) Electronics
7 20 (1.75%) Manufacturing
8 14 (1.22%) Law
9 13 (1.14%) Publishing
10 11 (0.96%) Automotive
10 11 (0.96%) Telecoms
11 9 (0.79%) Games
11 9 (0.79%) Investment Banking
12 7 (0.61%) Financial Institution
13 5 (0.44%) Back Office
14 2 (0.17%) Digital Economy
14 2 (0.17%) Front Office
14 2 (0.17%) Retail Banking
15 1 (0.087%) French Language
15 1 (0.087%) German Language
Job Titles
1 291 (25.41%) DBA
2 215 (18.78%) SQL DBA
3 193 (16.86%) Administrator
4 101 (8.82%) Architect
5 95 (8.30%) Infrastructure Engineer
6 90 (7.86%) Analyst
7 77 (6.72%) SQL Server DBA
8 68 (5.94%) Support Engineer
9 60 (5.24%) Systems Engineer
10 56 (4.89%) VMware Engineer
11 54 (4.72%) 3rd Line Engineer
12 50 (4.37%) Network Engineer
13 47 (4.10%) Developer
14 46 (4.02%) Oracle DBA
15 43 (3.76%) DevOps Engineer
16 41 (3.58%) Support Analyst
17 35 (3.06%) 3rd Line Support
17 35 (3.06%) Consultant
17 35 (3.06%) Team Leader
17 35 (3.06%) Windows Engineer
Libraries, Frameworks & Software Standards
1 115 (10.04%) .NET
2 46 (4.02%) XMPP
3 45 (3.93%) Middleware
4 41 (3.58%) Web Services
5 37 (3.23%) LDAP
6 29 (2.53%) ASP.NET
7 26 (2.27%) J2EE
7 26 (2.27%) MLlib
7 26 (2.27%) Pandas
8 25 (2.18%) REST
9 24 (2.10%) Natural Language Processing
10 22 (1.92%) HTML
10 22 (1.92%) XML
11 21 (1.83%) HTML5
12 18 (1.57%) LAMP
13 16 (1.40%) SOAP
14 15 (1.31%) SAP Basis
15 14 (1.22%) Elastic Stack
16 13 (1.14%) JDBC
16 13 (1.14%) JSON
Miscellaneous
1 188 (16.42%) Replication
2 173 (15.11%) Data Centre
3 89 (7.77%) Analytical Skills
4 41 (3.58%) Management Information System
5 36 (3.14%) Fintech
6 34 (2.97%) Algorithms
7 31 (2.71%) Public Cloud
8 30 (2.62%) Computer Science
9 28 (2.45%) Enterprise Software
10 22 (1.92%) PKI
11 20 (1.75%) Private Cloud
12 19 (1.66%) Greenfield Project
13 18 (1.57%) EMC VMAX
14 16 (1.40%) Client/Server
14 16 (1.40%) User Experience
15 14 (1.22%) EMC VNX
15 14 (1.22%) N-Tier
16 12 (1.05%) Internet of Things
17 10 (0.87%) Data Structures
17 10 (0.87%) Mainframe
Operating Systems
1 601 (52.49%) Windows
2 353 (30.83%) Windows Server
3 299 (26.11%) Linux
4 244 (21.31%) Windows Server 2012
5 191 (16.68%) Windows Server 2008
6 119 (10.39%) Unix
7 65 (5.68%) Red Hat Enterprise Linux
8 56 (4.89%) Solaris
9 54 (4.72%) Windows Server 2003
10 40 (3.49%) AIX
11 31 (2.71%) CentOS
12 28 (2.45%) Windows 10
13 26 (2.27%) Windows 7
14 15 (1.31%) Ubuntu
14 15 (1.31%) Windows 8
15 11 (0.96%) HPUX
16 10 (0.87%) SUSE
17 8 (0.70%) Debian
18 7 (0.61%) Mac OS X
18 7 (0.61%) Oracle Linux
Processes & Methodologies
1 259 (22.62%) Performance Tuning
2 227 (19.83%) High Availability
3 174 (15.20%) ITIL
4 171 (14.93%) Agile Software Development
5 170 (14.85%) DevOps
6 158 (13.80%) Load Balancing
7 146 (12.75%) Disaster Recovery
8 120 (10.48%) Business Intelligence
9 110 (9.61%) Scrum
10 109 (9.52%) Migration
11 102 (8.91%) Configuration Management
11 102 (8.91%) Mentoring
12 98 (8.56%) Continuous Integration
13 86 (7.51%) ETL
14 67 (5.85%) Change Management
15 66 (5.76%) Capacity Planning
16 56 (4.89%) Open Source
17 54 (4.72%) Analytics
18 51 (4.45%) Coaching
19 50 (4.37%) Performance Monitoring
Programming Languages
1 559 (48.82%) SQL
2 225 (19.65%) PowerShell
3 161 (14.06%) T-SQL
4 127 (11.09%) Java
5 118 (10.31%) Python
6 72 (6.29%) Shell Script
7 70 (6.11%) C#
8 61 (5.33%) Bash Shell
9 49 (4.28%) JavaScript
10 42 (3.67%) Perl
11 38 (3.32%) Scala
12 22 (1.92%) C
12 22 (1.92%) PL/SQL
13 20 (1.75%) Ruby
14 18 (1.57%) VBScript
15 14 (1.22%) PHP
15 14 (1.22%) VB
16 10 (0.87%) ABAP
17 9 (0.79%) R
18 8 (0.70%) WebLogic Scripting Tool
Qualifications
1 130 (11.35%) Microsoft Certification
2 121 (10.57%) Cisco Certification
3 76 (6.64%) CCNP
4 71 (6.20%) MCSE
5 55 (4.80%) CCNA
5 55 (4.80%) VMware Certified Professional (VCP)
6 53 (4.63%) Degree
7 50 (4.37%) CCIE
8 46 (4.02%) CCVP
9 35 (3.06%) VERITAS Certified Professional (VCP)
10 32 (2.79%) Security Cleared
11 29 (2.53%) MCSA
12 23 (2.01%) SC Cleared
13 18 (1.57%) CCNP Voice
14 17 (1.48%) ITIL Certification
15 16 (1.40%) Citrix Certification
15 16 (1.40%) Computer Science Degree
15 16 (1.40%) OCP
15 16 (1.40%) Oracle Certification
16 15 (1.31%) CCDE
Quality Assurance & Compliance
1 69 (6.03%) SLA
2 48 (4.19%) ISO/IEC 27001
3 42 (3.67%) PCI DSS
4 28 (2.45%) QA
5 20 (1.75%) HIPAA
6 10 (0.87%) PMO
7 6 (0.52%) GDPR
8 4 (0.35%) Data Quality
8 4 (0.35%) ISO/IEC 20000
9 3 (0.26%) PSD2
10 2 (0.17%) Sarbanes-Oxley
10 2 (0.17%) TickIT
11 1 (0.087%) ISO 9000
11 1 (0.087%) NIST 800
System Software
1 358 (31.27%) Active Directory
2 246 (21.48%) VMware Infrastructure
3 203 (17.73%) Hyper-V
4 106 (9.26%) VMware ESXi
5 57 (4.98%) Docker
5 57 (4.98%) vSphere
6 49 (4.28%) Virtual Machines
7 48 (4.19%) XenApp
8 42 (3.67%) XenDesktop
9 20 (1.75%) Oracle RAC
10 18 (1.57%) iptables
11 17 (1.48%) Virtual Servers
12 16 (1.40%) KVM
13 15 (1.31%) Veritas Cluster Server
13 15 (1.31%) XenServer
14 11 (0.96%) Veritas Volume Manager
15 9 (0.79%) Terminal Services
16 8 (0.70%) HDFS
16 8 (0.70%) NFS
17 7 (0.61%) Apache ZooKeeper
Systems Management
1 162 (14.15%) Microsoft Clustering
2 118 (10.31%) SCCM
3 93 (8.12%) SCOM
4 74 (6.46%) Opscode Chef
5 69 (6.03%) Failover Clustering
6 66 (5.76%) Puppet
7 61 (5.33%) Backup Exec
8 57 (4.98%) Cisco CUCM
9 55 (4.80%) vCenter Server
10 49 (4.28%) Ansible
11 46 (4.02%) Cisco UCCE
11 46 (4.02%) Cisco UCCX
12 37 (3.23%) Tivoli Storage Manager
13 34 (2.97%) Symantec Enterprise Vault
14 32 (2.79%) Symantec Endpoint Protection
15 31 (2.71%) SCOrch
16 28 (2.45%) Kubernetes
17 25 (2.18%) Terraform
17 25 (2.18%) WSUS
18 23 (2.01%) Simpana
Vendors
1 500 (43.67%) Microsoft
2 372 (32.49%) VMware
3 240 (20.96%) Cisco
4 196 (17.12%) Oracle
5 131 (11.44%) HP
6 99 (8.65%) Citrix
7 90 (7.86%) Red Hat
8 73 (6.38%) F5
8 73 (6.38%) Veritas
9 60 (5.24%) Symantec
10 55 (4.80%) SolarWinds
11 52 (4.54%) RedGate
12 51 (4.45%) CommVault
13 50 (4.37%) Juniper
14 44 (3.84%) IBM
15 39 (3.41%) NetApp
16 34 (2.97%) EMC
17 33 (2.88%) 3PAR
17 33 (2.88%) Facebook
17 33 (2.88%) SAP