Period
to 18 November 2017

The table below looks at the prevalence of the term Clustering in permanent job vacancies advertised in London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 18 November 2017 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 376 393 337
Rank change year-on-year +17 -56 -75
Permanent jobs citing Clustering 588 566 858
As % of all permanent IT jobs advertised in London 0.78% 0.75% 0.96%
As % of the Miscellaneous category 1.59% 1.63% 2.01%
Number of salaries quoted 513 493 742
London median annual salary £60,000 £55,000 £55,000
Median salary % change year-on-year +9.09% - +1.38%
10th Percentile £42,500 £37,100 £37,500
90th Percentile £89,750 £72,500 £81,250
England median annual salary £50,000 £50,000 £50,000

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 advertised in London with a requirement for generic IT skills.

All Generic IT Skills
London
Permanent vacancies with a requirement for generic IT skills 37070 34826 42738
As % of all permanent IT jobs advertised in London 49.41% 45.85% 47.88%
Number of salaries quoted 26491 29544 35056
London median annual salary £60,000 £58,500 £56,500
Median salary % change year-on-year +2.56% +3.54% +2.73%
10th Percentile £34,000 £32,500 £32,500
90th Percentile £92,500 £90,000 £87,500
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% +3.26%

Clustering
Job Vacancy Trend in London

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

Job vacancy trend for Clustering in London

Clustering
Salary Trend in London

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

Salary trend for Clustering in London

Clustering
Salary Histogram in London

The salary distribution of IT jobs citing Clustering in London over the 6 months to 18 November 2017.

Salary histogram for Clustering in London

Clustering
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clustering within the London region over the 6 months to 18 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
Central London +18 115 £59,000 +7.27% 4
West London +39 34 £55,000 +46.67% 3
East London +10 12 £70,000 +27.27% 1
South London +4 10 £41,000 -21.90%
North London +8 2 £52,500 +90.91%
Clustering
England

For the 6 months to 18 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 across the London region with a requirement for Clustering.

1 286 (48.64%) Windows
2 281 (47.79%) SQL
3 262 (44.56%) SQL Server
3 262 (44.56%) Finance
4 205 (34.86%) Microsoft
5 203 (34.52%) Active Directory
6 162 (27.55%) Linux
7 161 (27.38%) VMware
8 146 (24.83%) Banking
9 144 (24.49%) Windows Server
10 134 (22.79%) Cisco
11 133 (22.62%) High Availability
12 125 (21.26%) DevOps
13 121 (20.58%) SQL Server Integration Services
14 119 (20.24%) Agile Software Development
14 119 (20.24%) PowerShell
15 112 (19.05%) ITIL
16 110 (18.71%) VMware Infrastructure
17 105 (17.86%) SQL Server Reporting Services
18 94 (15.99%) SAN
19 90 (15.31%) Disaster Recovery
20 89 (15.14%) Oracle
20 89 (15.14%) Data Centre
20 89 (15.14%) Performance Tuning
21 88 (14.97%) Replication
22 86 (14.63%) Windows Server 2008
23 85 (14.46%) Windows Server 2012
24 84 (14.29%) Microsoft Clustering
25 83 (14.12%) Firewall
26 82 (13.95%) Cisco Certification

Clustering
Co-occurring IT Skills in London 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 79 (13.44%) IIS
2 61 (10.37%) CMS
3 55 (9.35%) MS Exchange
4 42 (7.14%) SharePoint
5 39 (6.63%) Skype for Business
6 35 (5.95%) Exchange Server 2010
7 22 (3.74%) Apache Spark
8 20 (3.40%) Apache
9 17 (2.89%) SharePoint 2010
10 15 (2.55%) Exchange Server 2013
11 12 (2.04%) Tomcat
12 11 (1.87%) nginx
12 11 (1.87%) WebSphere
13 8 (1.36%) JBoss
13 8 (1.36%) SharePoint 2013
14 6 (1.02%) BizTalk Server
14 6 (1.02%) WebLogic
15 5 (0.85%) Confluence
16 4 (0.68%) Exchange Server 2007
16 4 (0.68%) Kentico
Applications
1 9 (1.53%) MS Visio
2 7 (1.19%) Microsoft Office
3 5 (0.85%) Microsoft PowerPoint
3 5 (0.85%) Microsoft Project
Business Applications
1 6 (1.02%) Oracle EBS
1 6 (1.02%) Revive Adserver
2 2 (0.34%) HFM
2 2 (0.34%) Oracle Applications
2 2 (0.34%) Remedy ITSM
3 1 (0.17%) Dynamics CRM
Cloud Services
1 66 (11.22%) Amazon AWS
2 65 (11.05%) Microsoft Azure
3 48 (8.16%) IaaS
4 27 (4.59%) PaaS
5 18 (3.06%) Office 365
6 16 (2.72%) Azure Active Directory
7 9 (1.53%) Cloud Computing
8 7 (1.19%) Amazon EC2
9 6 (1.02%) AWS CloudFormation
9 6 (1.02%) AWS Lambda
9 6 (1.02%) Serverless
10 5 (0.85%) Amazon S3
10 5 (0.85%) Oracle CX
11 4 (0.68%) Amazon SQS
12 3 (0.51%) Google Cloud Platform
13 1 (0.17%) Amazon EMR
13 1 (0.17%) Google Analytics
13 1 (0.17%) SaaS
Communications & Networking
1 94 (15.99%) SAN
2 83 (14.12%) Firewall
3 68 (11.56%) VoIP
4 67 (11.39%) BGP
4 67 (11.39%) MPLS
4 67 (11.39%) OSPF
5 65 (11.05%) IPsec
6 64 (10.88%) DNS
7 63 (10.71%) Cisco IOS
8 60 (10.20%) Wireless
9 59 (10.03%) Cisco Nexus
9 59 (10.03%) EIGRP
10 54 (9.18%) WAN
11 52 (8.84%) Unified Communications
12 45 (7.65%) TCP/IP
13 43 (7.31%) DHCP
13 43 (7.31%) Network Security
14 38 (6.46%) VPN
15 34 (5.78%) NAS
16 33 (5.61%) Telepresence
Database & Business Intelligence
1 262 (44.56%) SQL Server
2 121 (20.58%) SQL Server Integration Services
3 105 (17.86%) SQL Server Reporting Services
4 82 (13.95%) MongoDB
5 79 (13.44%) SQL Server 2008
6 73 (12.41%) NoSQL
7 62 (10.54%) MySQL
8 60 (10.20%) SQL Server 2012
9 48 (8.16%) Hadoop
10 46 (7.82%) SQL Server Analysis Services
11 42 (7.14%) Data Warehouse
12 40 (6.80%) Apache Cassandra
13 34 (5.78%) Oracle Database
14 31 (5.27%) SQL Server 2014
15 29 (4.93%) Big Data
16 28 (4.76%) Microsoft Analysis Services
17 24 (4.08%) Redis
17 24 (4.08%) SQL Server 2016
18 23 (3.91%) Event Store
19 21 (3.57%) MariaDB
Development Applications
1 52 (8.84%) Git (software)
2 47 (7.99%) Octopus Deploy
2 47 (7.99%) TeamCity
3 23 (3.91%) Bower
3 23 (3.91%) Grunt
3 23 (3.91%) gulp
4 20 (3.40%) Visual Studio
5 19 (3.23%) MSBuild
6 17 (2.89%) Jenkins
7 15 (2.55%) Team Foundation Server
8 12 (2.04%) JIRA
9 10 (1.70%) Atlassian Bamboo
10 9 (1.53%) Travis CI
11 7 (1.19%) IntelliJ
11 7 (1.19%) JUnit
12 6 (1.02%) Eclipse
13 5 (0.85%) Maven
13 5 (0.85%) Selenium
14 2 (0.34%) Cucumber
14 2 (0.34%) Visual Studio Team System
General
1 262 (44.56%) Finance
2 146 (24.83%) Banking
3 29 (4.93%) Telecoms
4 26 (4.42%) Marketing
5 19 (3.23%) Advertising
6 13 (2.21%) Electronics
6 13 (2.21%) Manufacturing
6 13 (2.21%) Retail
7 12 (2.04%) Games
8 10 (1.70%) Investment Banking
9 8 (1.36%) Automotive
9 8 (1.36%) Law
10 4 (0.68%) Financial Institution
11 2 (0.34%) Back Office
11 2 (0.34%) Front Office
11 2 (0.34%) Legal
11 2 (0.34%) Pharmaceutical
Job Titles
1 142 (24.15%) DBA
2 117 (19.90%) SQL DBA
3 105 (17.86%) Administrator
4 67 (11.39%) SQL Server DBA
5 53 (9.01%) Architect
6 42 (7.14%) DevOps Engineer
7 39 (6.63%) Cisco Engineer
8 38 (6.46%) Infrastructure Engineer
9 34 (5.78%) Analyst
10 32 (5.44%) Developer
11 26 (4.42%) Team Leader
12 23 (3.91%) Solutions Architect
13 22 (3.74%) Infrastructure Analyst
13 22 (3.74%) Network Engineer
13 22 (3.74%) Systems Administrator
14 21 (3.57%) Linux Engineer
14 21 (3.57%) Systems Engineer
15 20 (3.40%) Network Team Leader
16 19 (3.23%) Network Operations Team Leader
16 19 (3.23%) Operations Team Leader
Libraries, Frameworks & Software Standards
1 73 (12.41%) .NET
2 59 (10.03%) XMPP
3 31 (5.27%) Natural Language Processing
4 30 (5.10%) ActiveMQ
5 28 (4.76%) Web Services
6 23 (3.91%) Elastic Stack
7 17 (2.89%) ASP.NET
7 17 (2.89%) Kafka
7 17 (2.89%) Middleware
8 13 (2.21%) Node.js
9 10 (1.70%) REST
9 10 (1.70%) Spring
9 10 (1.70%) TensorFlow
9 10 (1.70%) XML
10 8 (1.36%) Sass
11 7 (1.19%) CNTK
11 7 (1.19%) SOAP
11 7 (1.19%) Theano
12 6 (1.02%) LAMP
12 6 (1.02%) SAP Basis
Miscellaneous
1 89 (15.14%) Data Centre
2 88 (14.97%) Replication
3 51 (8.67%) Analytical Skills
4 32 (5.44%) Management Information System
5 26 (4.42%) Fintech
6 23 (3.91%) Client/Server
7 21 (3.57%) Algorithms
8 18 (3.06%) EMC VMAX
8 18 (3.06%) EMC VNX
9 16 (2.72%) Enterprise Storage
10 15 (2.55%) Computer Science
11 13 (2.21%) Greenfield Project
12 12 (2.04%) Public Cloud
13 10 (1.70%) iPad
14 8 (1.36%) Private Cloud
15 7 (1.19%) Hedge funds
16 6 (1.02%) Blackberry
16 6 (1.02%) Enterprise Software
17 5 (0.85%) CLARiiON
17 5 (0.85%) Foreign Exchange (FX)
Operating Systems
1 286 (48.64%) Windows
2 162 (27.55%) Linux
3 144 (24.49%) Windows Server
4 86 (14.63%) Windows Server 2008
5 85 (14.46%) Windows Server 2012
6 42 (7.14%) Red Hat Enterprise Linux
7 39 (6.63%) Unix
8 26 (4.42%) Solaris
9 19 (3.23%) Windows Server 2003
10 13 (2.21%) AIX
10 13 (2.21%) Ubuntu
11 12 (2.04%) CentOS
12 7 (1.19%) Debian
12 7 (1.19%) HPUX
12 7 (1.19%) Windows 7
13 4 (0.68%) Windows 10
14 3 (0.51%) Mac OS X
14 3 (0.51%) VMS
14 3 (0.51%) Windows 8
15 2 (0.34%) Fedora
Processes & Methodologies
1 133 (22.62%) High Availability
2 125 (21.26%) DevOps
3 119 (20.24%) Agile Software Development
4 112 (19.05%) ITIL
5 90 (15.31%) Disaster Recovery
6 89 (15.14%) Performance Tuning
7 72 (12.24%) Migration
8 66 (11.22%) Continuous Integration
9 62 (10.54%) Mentoring
10 57 (9.69%) Scrum
11 43 (7.31%) Change Management
12 42 (7.14%) Line Management
13 40 (6.80%) Configuration Management
13 40 (6.80%) Load Balancing
14 38 (6.46%) Business Intelligence
15 37 (6.29%) Machine Learning
16 32 (5.44%) Analytics
17 31 (5.27%) Process Improvement
17 31 (5.27%) Root Cause Analysis
18 30 (5.10%) Kanban
Programming Languages
1 281 (47.79%) SQL
2 119 (20.24%) PowerShell
3 78 (13.27%) Python
4 70 (11.90%) Java
5 46 (7.82%) T-SQL
6 34 (5.78%) JavaScript
7 31 (5.27%) VBScript
8 22 (3.74%) Perl
8 22 (3.74%) VB
9 21 (3.57%) Bash Shell
9 21 (3.57%) Shell Script
10 19 (3.23%) Ruby
11 12 (2.04%) PHP
11 12 (2.04%) PL/SQL
12 10 (1.70%) C
12 10 (1.70%) Scala
13 9 (1.53%) R
14 6 (1.02%) C#
14 6 (1.02%) ES6
15 4 (0.68%) sed
Qualifications
1 82 (13.95%) Cisco Certification
2 72 (12.24%) CCNP
3 62 (10.54%) CCIE
4 59 (10.03%) CCVP
5 48 (8.16%) Microsoft Certification
6 38 (6.46%) Degree
7 26 (4.42%) CCNP Voice
8 23 (3.91%) CCNA
9 20 (3.40%) MCSE
10 15 (2.55%) CCDE
11 11 (1.87%) VMware Certified Professional (VCP)
12 10 (1.70%) CEH
12 10 (1.70%) CISA
12 10 (1.70%) CISMP
12 10 (1.70%) CISSP
12 10 (1.70%) CompTIA Security+
12 10 (1.70%) Security+ Certification
12 10 (1.70%) SSCP
13 5 (0.85%) PhD
13 5 (0.85%) RHCE
Quality Assurance & Compliance
1 26 (4.42%) SLA
2 14 (2.38%) PCI DSS
3 11 (1.87%) ISO/IEC 27001
4 10 (1.70%) ISO 9001
5 5 (0.85%) GDPR
5 5 (0.85%) QA
6 4 (0.68%) PMO
7 2 (0.34%) Data Quality
8 1 (0.17%) PSD2
System Software
1 203 (34.52%) Active Directory
2 110 (18.71%) VMware Infrastructure
3 63 (10.71%) Hyper-V
4 59 (10.03%) VMware ESXi
5 56 (9.52%) Docker
6 22 (3.74%) XenApp
7 19 (3.23%) Veritas Cluster Server
8 17 (2.89%) XenDesktop
9 16 (2.72%) NFS
10 14 (2.38%) vSphere
11 13 (2.21%) Virtual Machines
12 11 (1.87%) Oracle RAC
13 7 (1.19%) VMware Workstation
14 5 (0.85%) Firmware
14 5 (0.85%) LXC
15 4 (0.68%) HDFS
15 4 (0.68%) ISA Server
15 4 (0.68%) KVM
15 4 (0.68%) VMware Server
15 4 (0.68%) XenServer
Systems Management
1 84 (14.29%) Microsoft Clustering
2 67 (11.39%) Cisco CUCM
3 59 (10.03%) Cisco UCCE
3 59 (10.03%) Cisco UCCX
4 46 (7.82%) Puppet
5 43 (7.31%) SCCM
6 36 (6.12%) SCOM
7 31 (5.27%) Ansible
8 30 (5.10%) Kubernetes
9 27 (4.59%) Opscode Chef
10 23 (3.91%) Docker Swarm
11 22 (3.74%) SCOrch
12 21 (3.57%) Failover Clustering
13 20 (3.40%) Simpana
13 20 (3.40%) vCenter Server
14 19 (3.23%) Nagios
15 16 (2.72%) NetBackup
16 13 (2.21%) Oracle Enterprise Manager
16 13 (2.21%) Oracle RMAN
17 12 (2.04%) vMotion
Vendors
1 205 (34.86%) Microsoft
2 161 (27.38%) VMware
3 134 (22.79%) Cisco
4 89 (15.14%) Oracle
5 64 (10.88%) HP
6 48 (8.16%) Sybase
7 45 (7.65%) Red Hat
8 38 (6.46%) Citrix
9 36 (6.12%) IBM
10 33 (5.61%) Palo Alto
10 33 (5.61%) Riverbed
10 33 (5.61%) SAP
11 31 (5.27%) EMC
12 30 (5.10%) SolarWinds
12 30 (5.10%) Splunk
13 28 (4.76%) NetApp
14 27 (4.59%) Veritas
15 26 (4.42%) NICE Systems
16 25 (4.25%) CommVault
17 23 (3.91%) RedGate