Period
to 17 October 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 17 October 2017 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
17 Oct 2017
Same period 2016 Same period 2015
Rank 418 378 316
Rank change year-on-year -40 -62 -41
Permanent jobs citing Clustering 1268 1544 2258
As % of all permanent IT jobs advertised in the UK 0.72% 0.80% 1.04%
As % of the Miscellaneous category 1.68% 1.96% 2.49%
Number of salaries quoted 1066 1287 1851
UK median annual salary £50,000 £50,000 £50,000
10th Percentile £34,500 £32,750 £33,000
90th Percentile £76,250 £70,500 £76,250
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 75630 78725 90575
As % of all permanent IT jobs advertised in the UK 43.24% 41.03% 41.59%
Number of salaries quoted 56792 64594 72517
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 £26,750
90th Percentile £82,500 £80,000 £78,750
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +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 17 October 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 17 October 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 -35 1197 £50,000 - 69
UK excluding London -79 631 £42,500 -10.53% 47
London +5 598 £59,000 +7.27% 26
South East -5 286 £47,500 -4.04% 15
North of England -41 158 £41,500 -7.78% 14
Midlands +13 96 £40,000 -4.76% 9
Yorkshire +15 78 £41,500 -7.78% 7
North West -53 65 £40,000 -15.79% 5
West Midlands +10 53 £40,000 - 2
East Midlands +33 43 £40,000 -5.88% 7
East of England -35 30 £50,000 +5.26% 5
Scotland -9 26 £41,250 -17.50% 1
South West -42 26 £38,000 -12.64%
North East +27 15 £42,500 -3.41% 2
Wales +3 10 £38,250 -3.16% 3

For the 6 months to 17 October 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.

1 642 (50.63%) Windows
2 585 (46.14%) SQL
3 583 (45.98%) SQL Server
4 581 (45.82%) Microsoft
5 446 (35.17%) Active Directory
6 428 (33.75%) VMware
7 388 (30.60%) Linux
8 368 (29.02%) Windows Server
9 358 (28.23%) Finance
10 301 (23.74%) VMware Infrastructure
11 286 (22.56%) SAN
12 285 (22.48%) High Availability
13 257 (20.27%) SQL Server Integration Services
13 257 (20.27%) ITIL
14 255 (20.11%) Cisco
15 239 (18.85%) Windows Server 2012
16 230 (18.14%) PowerShell
17 214 (16.88%) Replication
17 214 (16.88%) Windows Server 2008
18 209 (16.48%) Performance Tuning
19 207 (16.32%) Hyper-V
20 201 (15.85%) SQL Server 2008
21 198 (15.62%) MS Exchange
22 197 (15.54%) Agile Software Development
23 195 (15.38%) T-SQL
24 191 (15.06%) DNS
25 189 (14.91%) Disaster Recovery
26 188 (14.83%) Firewall
27 187 (14.75%) SQL Server Reporting Services
28 184 (14.51%) Oracle

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
1 198 (15.62%) MS Exchange
2 158 (12.46%) IIS
3 138 (10.88%) Exchange Server 2010
4 86 (6.78%) SharePoint
5 79 (6.23%) Exchange Server 2013
6 77 (6.07%) Apache
7 64 (5.05%) Skype for Business
8 62 (4.89%) BizTalk Server
9 51 (4.02%) CMS
10 43 (3.39%) Tomcat
11 32 (2.52%) WebLogic
12 30 (2.37%) Exchange Server 2007
13 25 (1.97%) SharePoint 2010
14 22 (1.74%) JBoss
15 19 (1.50%) nginx
16 18 (1.42%) SharePoint 2013
16 18 (1.42%) WebSphere
17 17 (1.34%) Apache Spark
17 17 (1.34%) Exchange Server 2003
18 16 (1.26%) Elasticsearch
Applications
1 22 (1.74%) Microsoft Office
2 16 (1.26%) MS Visio
3 13 (1.03%) Microsoft Project
4 10 (0.79%) Microsoft PowerPoint
5 3 (0.24%) Microsoft Excel
6 1 (0.079%) HipChat
6 1 (0.079%) S-PLUS
Business Applications
1 17 (1.34%) Oracle EBS
2 8 (0.63%) Oracle Procure-to-Pay
3 6 (0.47%) Oracle Applications
3 6 (0.47%) Revive Adserver
4 5 (0.39%) Dynamics AX
4 5 (0.39%) Dynamics NAV
4 5 (0.39%) Remedy ITSM
5 2 (0.16%) HFM
6 1 (0.079%) BusinessWorks
6 1 (0.079%) Dynamics CRM
6 1 (0.079%) Oracle 11i
6 1 (0.079%) Oracle BPM
6 1 (0.079%) Siebel Analytics
Cloud Services
1 147 (11.59%) Microsoft Azure
2 141 (11.12%) Amazon AWS
3 86 (6.78%) Office 365
4 56 (4.42%) IaaS
5 32 (2.52%) PaaS
6 19 (1.50%) SaaS
7 12 (0.95%) Azure Active Directory
8 11 (0.87%) Cloud Computing
9 8 (0.63%) Amazon EC2
9 8 (0.63%) Amazon S3
10 6 (0.47%) AWS CloudFormation
10 6 (0.47%) AWS Lambda
10 6 (0.47%) Serverless
11 5 (0.39%) Google Cloud Platform
11 5 (0.39%) Oracle CX
12 4 (0.32%) Amazon SQS
12 4 (0.32%) Joyent
13 3 (0.24%) GitHub
13 3 (0.24%) OpenShift
14 2 (0.16%) Amazon Glacier
Communications & Networking
1 286 (22.56%) SAN
2 191 (15.06%) DNS
3 188 (14.83%) Firewall
4 177 (13.96%) TCP/IP
5 135 (10.65%) WAN
6 131 (10.33%) DHCP
7 97 (7.65%) VoIP
8 93 (7.33%) NAS
9 89 (7.02%) MPLS
10 84 (6.62%) VPN
11 70 (5.52%) BGP
12 67 (5.28%) VLAN
13 66 (5.21%) IPsec
13 66 (5.21%) LAN
13 66 (5.21%) OSPF
13 66 (5.21%) SSL
14 64 (5.05%) Wireless
15 61 (4.81%) Cisco Nexus
16 57 (4.50%) HTTP
17 52 (4.10%) Cisco IOS
Database & Business Intelligence
1 583 (45.98%) SQL Server
2 257 (20.27%) SQL Server Integration Services
3 201 (15.85%) SQL Server 2008
4 187 (14.75%) SQL Server Reporting Services
5 127 (10.02%) MySQL
6 117 (9.23%) SQL Server Analysis Services
7 90 (7.10%) Data Warehouse
8 89 (7.02%) MongoDB
9 87 (6.86%) NoSQL
10 85 (6.70%) SQL Server 2012
11 72 (5.68%) Oracle Database
12 67 (5.28%) SQL Server 2014
13 58 (4.57%) SQL Server 2016
14 53 (4.18%) Microsoft Analysis Services
15 50 (3.94%) Hadoop
16 48 (3.79%) SQL Server 2005
17 40 (3.15%) Relational Database
18 37 (2.92%) Apache Cassandra
18 37 (2.92%) Redis
19 29 (2.29%) Big Data
Development Applications
1 101 (7.97%) Git (software)
2 56 (4.42%) Visual Studio
3 38 (3.00%) TeamCity
4 33 (2.60%) Jenkins
5 32 (2.52%) Maven
5 32 (2.52%) Subversion
6 31 (2.44%) Octopus Deploy
7 29 (2.29%) JIRA
8 25 (1.97%) Bower
8 25 (1.97%) Grunt
8 25 (1.97%) gulp
9 16 (1.26%) Team Foundation Server
10 10 (0.79%) MSBuild
11 8 (0.63%) Atlassian Bamboo
11 8 (0.63%) GitLab
11 8 (0.63%) Selenium
12 6 (0.47%) Eclipse
12 6 (0.47%) PhpStorm
13 5 (0.39%) Gradle
14 4 (0.32%) PhantomJS
General
1 358 (28.23%) Finance
2 138 (10.88%) Banking
3 43 (3.39%) Marketing
4 37 (2.92%) Telecoms
5 36 (2.84%) Retail
6 31 (2.44%) Advertising
7 26 (2.05%) Manufacturing
8 25 (1.97%) Games
9 17 (1.34%) Law
10 11 (0.87%) Investment Banking
11 10 (0.79%) Automotive
11 10 (0.79%) Electronics
11 10 (0.79%) Legal
12 8 (0.63%) Financial Institution
13 2 (0.16%) Front Office
13 2 (0.16%) Multimedia
13 2 (0.16%) Pharmaceutical
14 1 (0.079%) Back Office
14 1 (0.079%) Publishing
Job Titles
1 286 (22.56%) DBA
2 226 (17.82%) SQL DBA
3 196 (15.46%) Administrator
4 133 (10.49%) Infrastructure Engineer
5 117 (9.23%) Developer
6 114 (8.99%) SQL Server DBA
7 81 (6.39%) Architect
8 77 (6.07%) Support Engineer
9 67 (5.28%) Analyst
10 65 (5.13%) Linux Engineer
11 61 (4.81%) 3rd Line Engineer
11 61 (4.81%) Systems Administrator
11 61 (4.81%) Systems Engineer
12 59 (4.65%) DevOps Engineer
13 54 (4.26%) Consultant
14 52 (4.10%) Cisco Engineer
15 50 (3.94%) IT Engineer
16 46 (3.63%) BizTalk Developer
16 46 (3.63%) Network Engineer
17 41 (3.23%) Infrastructure Analyst
Libraries, Frameworks & Software Standards
1 115 (9.07%) .NET
2 55 (4.34%) ASP.NET
3 49 (3.86%) Web Services
4 48 (3.79%) XMPP
5 43 (3.39%) HTML
6 41 (3.23%) HTML5
7 38 (3.00%) Middleware
8 34 (2.68%) Elastic Stack
9 32 (2.52%) ActiveMQ
10 31 (2.44%) Natural Language Processing
11 30 (2.37%) Node.js
12 21 (1.66%) XML
13 20 (1.58%) J2EE
14 17 (1.34%) WCF
15 16 (1.26%) Kafka
15 16 (1.26%) LAMP
16 13 (1.03%) EDI
16 13 (1.03%) JMS
17 12 (0.95%) React
18 11 (0.87%) WAP
Miscellaneous
1 214 (16.88%) Replication
2 171 (13.49%) Data Centre
3 104 (8.20%) Analytical Skills
4 42 (3.31%) Management Information System
5 31 (2.44%) Client/Server
5 31 (2.44%) Fintech
6 25 (1.97%) Public Cloud
7 23 (1.81%) Computer Science
7 23 (1.81%) Greenfield Project
8 21 (1.66%) Enterprise Storage
9 17 (1.34%) Algorithms
9 17 (1.34%) EMC VMAX
9 17 (1.34%) EMC VNX
9 17 (1.34%) Enterprise Software
9 17 (1.34%) Hybrid Cloud
10 15 (1.18%) FMCG
11 13 (1.03%) iPad
12 11 (0.87%) PKI
13 10 (0.79%) Blackberry
14 8 (0.63%) Private Cloud
Operating Systems
1 642 (50.63%) Windows
2 388 (30.60%) Linux
3 368 (29.02%) Windows Server
4 239 (18.85%) Windows Server 2012
5 214 (16.88%) Windows Server 2008
6 134 (10.57%) Unix
7 109 (8.60%) Red Hat Enterprise Linux
8 80 (6.31%) Solaris
9 68 (5.36%) Windows Server 2003
10 67 (5.28%) AIX
11 27 (2.13%) CentOS
12 23 (1.81%) Ubuntu
12 23 (1.81%) Windows 7
13 22 (1.74%) Windows 10
14 20 (1.58%) HPUX
15 16 (1.26%) Windows 8
16 11 (0.87%) SUSE
17 9 (0.71%) Debian
18 6 (0.47%) Oracle Linux
19 3 (0.24%) SmartOS
Processes & Methodologies
1 285 (22.48%) High Availability
2 257 (20.27%) ITIL
3 209 (16.48%) Performance Tuning
4 197 (15.54%) Agile Software Development
5 189 (14.91%) Disaster Recovery
6 147 (11.59%) Load Balancing
7 146 (11.51%) DevOps
8 130 (10.25%) Continuous Integration
9 103 (8.12%) Change Management
10 92 (7.26%) Mentoring
10 92 (7.26%) Migration
11 89 (7.02%) Scrum
12 88 (6.94%) Business Intelligence
12 88 (6.94%) ETL
13 82 (6.47%) TDD
14 77 (6.07%) Capacity Planning
15 73 (5.76%) Configuration Management
16 71 (5.60%) SDLC
17 70 (5.52%) Service Delivery
18 67 (5.28%) Project Management
Programming Languages
1 585 (46.14%) SQL
2 230 (18.14%) PowerShell
3 195 (15.38%) T-SQL
4 126 (9.94%) Python
5 115 (9.07%) Java
6 94 (7.41%) JavaScript
7 78 (6.15%) Shell Script
8 69 (5.44%) Bash Shell
9 64 (5.05%) Perl
10 62 (4.89%) C#
11 45 (3.55%) VBScript
12 35 (2.76%) PHP
13 29 (2.29%) C
13 29 (2.29%) Ruby
14 22 (1.74%) VB
15 21 (1.66%) PL/SQL
16 11 (0.87%) ActionScript
16 11 (0.87%) ActionScript 2.0
16 11 (0.87%) R
16 11 (0.87%) Scala
Qualifications
1 160 (12.62%) Microsoft Certification
2 108 (8.52%) Cisco Certification
3 82 (6.47%) MCSE
4 71 (5.60%) CCNP
5 69 (5.44%) Degree
6 66 (5.21%) CCIE
7 58 (4.57%) CCNA
8 51 (4.02%) VMware Certified Professional (VCP)
9 48 (3.79%) CCVP
10 44 (3.47%) MCSA
11 41 (3.23%) VERITAS Certified Professional (VCP)
12 36 (2.84%) MCITP
13 28 (2.21%) Security Cleared
14 24 (1.89%) MCP
15 22 (1.74%) CCNP Voice
16 21 (1.66%) CISSP
16 21 (1.66%) CompTIA Security+
16 21 (1.66%) Security+ Certification
17 20 (1.58%) SC Cleared
18 14 (1.10%) ITIL Foundation Certificate
Quality Assurance & Compliance
1 78 (6.15%) SLA
2 42 (3.31%) PCI DSS
3 39 (3.08%) ISO/IEC 27001
4 15 (1.18%) QA
5 14 (1.10%) ISO 9001
6 12 (0.95%) Data Quality
7 8 (0.63%) HIPAA
8 7 (0.55%) GDPR
8 7 (0.55%) PMO
9 4 (0.32%) ISO/IEC 20000
10 3 (0.24%) ISO 22301
10 3 (0.24%) Sarbanes-Oxley
11 1 (0.079%) Cyber Essentials
11 1 (0.079%) Cyber Essentials PLUS
11 1 (0.079%) ISO 9000
System Software
1 446 (35.17%) Active Directory
2 301 (23.74%) VMware Infrastructure
3 207 (16.32%) Hyper-V
4 140 (11.04%) VMware ESXi
5 94 (7.41%) Docker
6 50 (3.94%) XenApp
7 43 (3.39%) vSphere
8 35 (2.76%) Veritas Cluster Server
9 34 (2.68%) Virtual Machines
9 34 (2.68%) XenDesktop
10 26 (2.05%) NFS
10 26 (2.05%) Oracle RAC
11 22 (1.74%) iptables
12 18 (1.42%) Microsoft App-V
12 18 (1.42%) Virtual Servers
13 15 (1.18%) KVM
13 15 (1.18%) Terminal Services
14 14 (1.10%) XenServer
15 13 (1.03%) RHEV
16 12 (0.95%) UAG
Systems Management
1 184 (14.51%) Microsoft Clustering
2 131 (10.33%) SCCM
3 102 (8.04%) SCOM
4 76 (5.99%) Puppet
5 72 (5.68%) Failover Clustering
6 69 (5.44%) vCenter Server
7 64 (5.05%) Backup Exec
8 60 (4.73%) Opscode Chef
9 56 (4.42%) Cisco CUCM
10 51 (4.02%) Ansible
10 51 (4.02%) Kubernetes
11 48 (3.79%) Cisco UCCE
11 48 (3.79%) Cisco UCCX
12 45 (3.55%) WSUS
13 36 (2.84%) Symantec Enterprise Vault
14 35 (2.76%) Tivoli Storage Manager
15 26 (2.05%) Nagios
15 26 (2.05%) NetBackup
16 25 (1.97%) Docker Swarm
16 25 (1.97%) SCOrch
Vendors
1 581 (45.82%) Microsoft
2 428 (33.75%) VMware
3 255 (20.11%) Cisco
4 184 (14.51%) Oracle
5 148 (11.67%) HP
6 136 (10.73%) Red Hat
7 117 (9.23%) Citrix
8 103 (8.12%) Veritas
9 92 (7.26%) Symantec
10 71 (5.60%) Juniper
11 69 (5.44%) NetApp
12 67 (5.28%) Dell
12 67 (5.28%) IBM
13 64 (5.05%) SolarWinds
14 61 (4.81%) F5
15 59 (4.65%) EMC
16 51 (4.02%) Sybase
17 41 (3.23%) SAP
18 37 (2.92%) Splunk
18 37 (2.92%) Veeam