Period
to 22 November 2017

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 22 November 2017 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 406 392 314
Rank change year-on-year -14 -78 -35
Permanent jobs citing Clustering 1316 1493 2207
As % of all permanent IT jobs advertised in the UK 0.73% 0.78% 1.02%
As % of the Miscellaneous category 1.70% 1.92% 2.44%
Number of salaries quoted 1136 1213 1790
UK median annual salary £50,000 £50,000 £50,000
10th Percentile £33,750 £32,000 £33,750
90th Percentile £77,500 £71,250 £75,000
UK excluding London median annual salary £42,500 £47,500 £45,000
% change year-on-year -10.53% +5.56% +5.88%

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 77560 77850 90566
As % of all permanent IT jobs advertised in the UK 42.94% 40.93% 41.97%
Number of salaries quoted 58510 63988 72559
UK median annual salary £50,000 £50,000 £47,500
Median salary % change year-on-year - +5.26% +5.56%
10th Percentile £27,500 £27,500 £27,000
90th Percentile £82,500 £80,000 £78,880
UK excluding London median annual salary £42,500 £42,500 £41,000
% change year-on-year - +3.66% +2.50%

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 22 November 2017.

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 22 November 2017. 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 -27 1248 £50,000 - 55
UK excluding London -54 688 £42,500 -10.53% 35
London +10 588 £60,000 +9.09% 21
South East -3 319 £47,500 -4.04% 11
North of England -64 155 £40,000 -11.11% 7
Midlands +32 111 £40,000 -5.88% 6
Yorkshire -5 76 £40,000 -11.11% 3
West Midlands -1 63 £40,000 -11.11% 1
North West -79 58 £42,500 -5.56% 4
East Midlands +45 48 £40,000 -4.76% 4
East of England -18 41 £47,000 -6.00% 6
South West -39 33 £50,000 +17.65% 4
North East +19 21 £40,000 -7.51%
Scotland -21 21 £40,000 -20.00% 1
Wales +3 10 £38,500 -3.75%

For the 6 months to 22 November 2017, IT jobs citing Clustering also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for Clustering.

1 669 (50.84%) Windows
2 625 (47.49%) SQL
3 619 (47.04%) SQL Server
4 593 (45.06%) Microsoft
5 456 (34.65%) Active Directory
6 424 (32.22%) VMware
7 392 (29.79%) Windows Server
8 367 (27.89%) Linux
9 364 (27.66%) Finance
10 294 (22.34%) VMware Infrastructure
11 287 (21.81%) SAN
11 287 (21.81%) Cisco
12 265 (20.14%) High Availability
13 263 (19.98%) Windows Server 2012
14 262 (19.91%) SQL Server Integration Services
15 241 (18.31%) Performance Tuning
16 239 (18.16%) ITIL
17 226 (17.17%) Windows Server 2008
18 220 (16.72%) PowerShell
18 220 (16.72%) Agile Software Development
19 212 (16.11%) Replication
20 211 (16.03%) SQL Server 2008
21 208 (15.81%) Firewall
22 205 (15.58%) MS Exchange
22 205 (15.58%) Hyper-V
23 201 (15.27%) T-SQL
23 201 (15.27%) Oracle
24 200 (15.20%) SQL Server Reporting Services
25 190 (14.44%) Data Centre
26 184 (13.98%) TCP/IP

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
1 205 (15.58%) MS Exchange
2 176 (13.37%) IIS
3 135 (10.26%) Exchange Server 2010
4 86 (6.53%) Exchange Server 2013
5 84 (6.38%) SharePoint
6 76 (5.78%) Apache
7 63 (4.79%) CMS
7 63 (4.79%) Skype for Business
8 49 (3.72%) BizTalk Server
9 43 (3.27%) Tomcat
10 32 (2.43%) Apache Spark
11 31 (2.36%) Exchange Server 2007
12 30 (2.28%) WebLogic
13 26 (1.98%) Elasticsearch
13 26 (1.98%) SharePoint 2010
14 21 (1.60%) SharePoint 2013
15 18 (1.37%) Exchange Server 2003
16 16 (1.22%) JBoss
17 14 (1.06%) OpenStack
17 14 (1.06%) WebSphere
Applications
1 21 (1.60%) Microsoft Office
2 15 (1.14%) MS Visio
3 11 (0.84%) Microsoft Project
4 9 (0.68%) Microsoft PowerPoint
5 5 (0.38%) Microsoft Excel
6 1 (0.076%) HipChat
6 1 (0.076%) S-PLUS
Business Applications
1 14 (1.06%) Oracle EBS
2 8 (0.61%) Oracle Procure-to-Pay
3 6 (0.46%) Oracle Applications
3 6 (0.46%) Revive Adserver
4 5 (0.38%) Dynamics NAV
4 5 (0.38%) Remedy ITSM
5 2 (0.15%) Dynamics AX
5 2 (0.15%) HFM
6 1 (0.076%) BusinessWorks
6 1 (0.076%) Dynamics CRM
6 1 (0.076%) Oracle 11i
Cloud Services
1 162 (12.31%) Microsoft Azure
2 153 (11.63%) Amazon AWS
3 77 (5.85%) Office 365
4 66 (5.02%) IaaS
5 34 (2.58%) PaaS
6 22 (1.67%) Azure Active Directory
7 16 (1.22%) SaaS
8 14 (1.06%) Cloud Computing
9 11 (0.84%) Amazon EMR
9 11 (0.84%) GitHub
10 10 (0.76%) Amazon Kinesis
11 5 (0.38%) Amazon EC2
11 5 (0.38%) Amazon S3
11 5 (0.38%) Google Cloud Platform
11 5 (0.38%) Oracle CX
12 4 (0.30%) Amazon SQS
12 4 (0.30%) AWS CloudFormation
12 4 (0.30%) AWS Lambda
12 4 (0.30%) Serverless
13 2 (0.15%) OpenShift
Communications & Networking
1 287 (21.81%) SAN
2 208 (15.81%) Firewall
3 184 (13.98%) TCP/IP
4 177 (13.45%) DNS
5 156 (11.85%) WAN
6 124 (9.42%) DHCP
7 114 (8.66%) VoIP
8 103 (7.83%) MPLS
9 87 (6.61%) IPsec
9 87 (6.61%) VPN
10 86 (6.53%) NAS
11 83 (6.31%) BGP
12 81 (6.16%) Cisco Nexus
12 81 (6.16%) SSL
13 79 (6.00%) OSPF
13 79 (6.00%) Wireless
14 74 (5.62%) LAN
15 64 (4.86%) Cisco IOS
15 64 (4.86%) VLAN
16 63 (4.79%) Network Security
Database & Business Intelligence
1 619 (47.04%) SQL Server
2 262 (19.91%) SQL Server Integration Services
3 211 (16.03%) SQL Server 2008
4 200 (15.20%) SQL Server Reporting Services
5 139 (10.56%) MySQL
6 129 (9.80%) SQL Server Analysis Services
7 98 (7.45%) Data Warehouse
8 96 (7.29%) MongoDB
8 96 (7.29%) SQL Server 2012
9 89 (6.76%) NoSQL
10 79 (6.00%) Oracle Database
11 73 (5.55%) SQL Server 2014
12 67 (5.09%) SQL Server 2016
13 55 (4.18%) Hadoop
14 52 (3.95%) SQL Server 2005
15 50 (3.80%) Microsoft Analysis Services
16 44 (3.34%) Apache Cassandra
17 40 (3.04%) Relational Database
18 37 (2.81%) Big Data
19 34 (2.58%) Redis
Development Applications
1 100 (7.60%) Git (software)
2 62 (4.71%) Visual Studio
3 59 (4.48%) TeamCity
4 52 (3.95%) Octopus Deploy
5 37 (2.81%) JIRA
6 35 (2.66%) Maven
7 33 (2.51%) Subversion
8 25 (1.90%) Team Foundation Server
9 23 (1.75%) Jenkins
10 22 (1.67%) Bower
10 22 (1.67%) Grunt
10 22 (1.67%) gulp
10 22 (1.67%) MSBuild
11 13 (0.99%) Atlassian Bamboo
12 10 (0.76%) Travis CI
13 8 (0.61%) GitLab
13 8 (0.61%) Selenium
14 7 (0.53%) IntelliJ
14 7 (0.53%) JUnit
15 6 (0.46%) Eclipse
General
1 364 (27.66%) Finance
2 157 (11.93%) Banking
3 45 (3.42%) Marketing
4 41 (3.12%) Advertising
5 38 (2.89%) Telecoms
6 37 (2.81%) Retail
7 29 (2.20%) Manufacturing
8 22 (1.67%) Games
9 16 (1.22%) Electronics
10 11 (0.84%) Investment Banking
10 11 (0.84%) Law
11 9 (0.68%) Automotive
12 8 (0.61%) Financial Institution
13 7 (0.53%) Legal
14 2 (0.15%) Back Office
14 2 (0.15%) Front Office
14 2 (0.15%) Pharmaceutical
14 2 (0.15%) Retail Banking
Job Titles
1 307 (23.33%) DBA
2 235 (17.86%) SQL DBA
3 215 (16.34%) Administrator
4 115 (8.74%) Infrastructure Engineer
5 110 (8.36%) Developer
6 104 (7.90%) SQL Server DBA
7 92 (6.99%) Architect
8 82 (6.23%) Support Engineer
9 69 (5.24%) Systems Engineer
10 68 (5.17%) Analyst
11 63 (4.79%) 3rd Line Engineer
12 60 (4.56%) Network Engineer
13 59 (4.48%) DevOps Engineer
14 56 (4.26%) Cisco Engineer
15 54 (4.10%) Systems Administrator
16 52 (3.95%) Consultant
16 52 (3.95%) Linux Engineer
17 44 (3.34%) IT Engineer
18 43 (3.27%) Senior DBA
19 39 (2.96%) Infrastructure Analyst
Libraries, Frameworks & Software Standards
1 128 (9.73%) .NET
2 60 (4.56%) XMPP
3 58 (4.41%) ASP.NET
4 46 (3.50%) Web Services
5 40 (3.04%) HTML
6 37 (2.81%) HTML5
7 36 (2.74%) Middleware
8 33 (2.51%) Natural Language Processing
9 31 (2.36%) Elastic Stack
10 29 (2.20%) ActiveMQ
10 29 (2.20%) Node.js
11 24 (1.82%) XML
12 20 (1.52%) Kafka
13 19 (1.44%) J2EE
14 17 (1.29%) LAMP
15 14 (1.06%) REST
15 14 (1.06%) WAP
16 12 (0.91%) React
16 12 (0.91%) SOAP
17 11 (0.84%) Spring
Miscellaneous
1 212 (16.11%) Replication
2 190 (14.44%) Data Centre
3 109 (8.28%) Analytical Skills
4 45 (3.42%) Management Information System
5 36 (2.74%) Client/Server
6 35 (2.66%) Fintech
6 35 (2.66%) Public Cloud
7 25 (1.90%) Computer Science
8 23 (1.75%) Algorithms
9 21 (1.60%) Greenfield Project
10 18 (1.37%) EMC VMAX
10 18 (1.37%) EMC VNX
11 16 (1.22%) Enterprise Storage
11 16 (1.22%) PKI
12 15 (1.14%) FMCG
13 13 (0.99%) Enterprise Software
14 12 (0.91%) Private Cloud
15 11 (0.84%) Hybrid Cloud
16 10 (0.76%) Blackberry
16 10 (0.76%) iPad
Operating Systems
1 669 (50.84%) Windows
2 392 (29.79%) Windows Server
3 367 (27.89%) Linux
4 263 (19.98%) Windows Server 2012
5 226 (17.17%) Windows Server 2008
6 125 (9.50%) Unix
7 99 (7.52%) Red Hat Enterprise Linux
8 82 (6.23%) Solaris
9 67 (5.09%) AIX
10 66 (5.02%) Windows Server 2003
11 31 (2.36%) CentOS
12 28 (2.13%) Windows 7
13 25 (1.90%) Ubuntu
14 24 (1.82%) Windows 10
15 20 (1.52%) HPUX
16 17 (1.29%) Windows 8
17 10 (0.76%) Debian
18 9 (0.68%) SUSE
19 8 (0.61%) Oracle Linux
20 4 (0.30%) Mac OS X
Processes & Methodologies
1 265 (20.14%) High Availability
2 241 (18.31%) Performance Tuning
3 239 (18.16%) ITIL
4 220 (16.72%) Agile Software Development
5 178 (13.53%) Disaster Recovery
6 170 (12.92%) DevOps
7 150 (11.40%) Load Balancing
8 141 (10.71%) Continuous Integration
9 113 (8.59%) Migration
10 108 (8.21%) Mentoring
11 106 (8.05%) Scrum
12 100 (7.60%) Business Intelligence
13 96 (7.29%) ETL
14 92 (6.99%) Change Management
15 86 (6.53%) TDD
16 83 (6.31%) Configuration Management
17 79 (6.00%) Capacity Planning
18 69 (5.24%) Service Delivery
19 68 (5.17%) Project Management
20 67 (5.09%) SDLC
Programming Languages
1 625 (47.49%) SQL
2 220 (16.72%) PowerShell
3 201 (15.27%) T-SQL
4 132 (10.03%) Java
5 123 (9.35%) Python
6 90 (6.84%) JavaScript
7 85 (6.46%) Shell Script
8 60 (4.56%) Bash Shell
9 58 (4.41%) Perl
10 57 (4.33%) C#
11 42 (3.19%) VBScript
12 27 (2.05%) PHP
13 24 (1.82%) C
14 23 (1.75%) VB
15 22 (1.67%) PL/SQL
16 20 (1.52%) Ruby
17 19 (1.44%) Scala
18 10 (0.76%) R
19 8 (0.61%) ES6
19 8 (0.61%) Go
Qualifications
1 152 (11.55%) Microsoft Certification
2 140 (10.64%) Cisco Certification
3 94 (7.14%) CCNP
4 82 (6.23%) MCSE
5 78 (5.93%) CCIE
6 71 (5.40%) Degree
7 70 (5.32%) CCNA
8 60 (4.56%) CCVP
8 60 (4.56%) VMware Certified Professional (VCP)
9 48 (3.65%) VERITAS Certified Professional (VCP)
10 40 (3.04%) MCSA
11 35 (2.66%) MCITP
12 27 (2.05%) CCNP Voice
12 27 (2.05%) Security Cleared
13 21 (1.60%) MCP
14 20 (1.52%) CISSP
14 20 (1.52%) CompTIA Security+
14 20 (1.52%) SC Cleared
14 20 (1.52%) Security+ Certification
15 16 (1.22%) Citrix Certification
Quality Assurance & Compliance
1 74 (5.62%) SLA
2 49 (3.72%) PCI DSS
3 43 (3.27%) ISO/IEC 27001
4 13 (0.99%) ISO 9001
5 12 (0.91%) Data Quality
5 12 (0.91%) HIPAA
5 12 (0.91%) QA
6 9 (0.68%) PMO
7 7 (0.53%) GDPR
8 4 (0.30%) ISO/IEC 20000
9 3 (0.23%) ISO 22301
10 1 (0.076%) ISO 9000
10 1 (0.076%) NIST 800
10 1 (0.076%) PSD2
System Software
1 456 (34.65%) Active Directory
2 294 (22.34%) VMware Infrastructure
3 205 (15.58%) Hyper-V
4 142 (10.79%) VMware ESXi
5 80 (6.08%) Docker
6 55 (4.18%) XenApp
7 53 (4.03%) vSphere
8 41 (3.12%) Virtual Machines
8 41 (3.12%) XenDesktop
9 27 (2.05%) iptables
10 26 (1.98%) Veritas Cluster Server
11 24 (1.82%) Oracle RAC
12 21 (1.60%) NFS
13 18 (1.37%) Microsoft App-V
13 18 (1.37%) Virtual Servers
14 15 (1.14%) Terminal Services
15 12 (0.91%) DFS Replication
15 12 (0.91%) Firmware
15 12 (0.91%) KVM
16 11 (0.84%) UAG
Systems Management
1 181 (13.75%) Microsoft Clustering
2 125 (9.50%) SCCM
3 103 (7.83%) SCOM
4 75 (5.70%) vCenter Server
5 74 (5.62%) Backup Exec
6 70 (5.32%) Cisco CUCM
7 68 (5.17%) Puppet
8 65 (4.94%) Opscode Chef
9 60 (4.56%) Cisco UCCE
9 60 (4.56%) Cisco UCCX
10 57 (4.33%) Failover Clustering
11 51 (3.88%) Ansible
12 46 (3.50%) Kubernetes
13 40 (3.04%) Symantec Enterprise Vault
14 38 (2.89%) Tivoli Storage Manager
15 36 (2.74%) WSUS
16 30 (2.28%) Symantec Endpoint Protection
17 27 (2.05%) SCOrch
17 27 (2.05%) Terraform
18 25 (1.90%) Simpana
Vendors
1 593 (45.06%) Microsoft
2 424 (32.22%) VMware
3 287 (21.81%) Cisco
4 201 (15.27%) Oracle
5 157 (11.93%) HP
6 125 (9.50%) Red Hat
7 123 (9.35%) Citrix
8 101 (7.67%) Veritas
9 87 (6.61%) Symantec
10 80 (6.08%) Juniper
11 77 (5.85%) F5
12 73 (5.55%) IBM
13 72 (5.47%) SolarWinds
14 60 (4.56%) EMC
14 60 (4.56%) NetApp
15 50 (3.80%) Dell
16 48 (3.65%) Sybase
17 39 (2.96%) CommVault
18 38 (2.89%) SAP
19 37 (2.81%) Veeam