Period
to 19 November 2017

The table below looks at the prevalence of the term Clustering in contract job vacancies advertised in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Clustering over the 6 months to 19 November 2017 with a comparison to the same period over the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Clustering
Central London > City of London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 211 194 178
Rank change year-on-year -17 -16 +56
Contract jobs citing Clustering 29 59 94
As % of all contract IT jobs advertised in the City of London 0.41% 0.89% 1.02%
As % of the Miscellaneous category 0.95% 2.15% 2.60%
Number of daily rates quoted 21 52 64
City of London median daily rate £450 £475 £425
Median daily rate % change year-on-year -5.26% +11.76% +6.25%
10th Percentile £325 £354 £320
90th Percentile £550 £610 £520
Central London median daily rate £425 £475 £425
% change year-on-year -10.53% +11.76% +6.25%
Number of hourly rates quoted 2 0 3
City of London median hourly rate £27.50 - £62.50
Central London median hourly rate £27.50 - £62.50

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

All Generic IT Skills
City of London
Contract vacancies with a requirement for generic IT skills 3059 2747 3615
As % of all contract IT jobs advertised in the City of London 43.54% 41.30% 39.36%
Number of daily rates quoted 2380 2148 2875
City of London median daily rate £525 £475 £475
Median daily rate % change year-on-year +10.53% - +5.56%
10th Percentile £325 £313 £275
90th Percentile £713 £675 £663
Central London median daily rate £525 £475 £475
% change year-on-year +10.53% - +5.56%
Number of hourly rates quoted 36 30 55
City of London median hourly rate £22.26 £19.00 £20.00
Median hourly rate % change year-on-year +17.14% -5.00% +14.29%
10th Percentile £12.88 £11.25 £12.00
90th Percentile £33.25 £55.00 £36.40
Central London median hourly rate £21.31 £18.45 £20.00
% change year-on-year +15.51% -7.75% +14.29%

Clustering
Job Vacancy Trend in the City of London

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

Job vacancy trend for Clustering in the City of London

Clustering
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Clustering in the City of London.

Contractor daily rate trend for Clustering in the City of London

Clustering
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Clustering in the City of London over the 6 months to 19 November 2017.

Contractor daily rate histogram for Clustering in the City of London

Clustering
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Clustering in the City of London.

Contractor hourly rate trend for Clustering in the City of London

For the 6 months to 19 November 2017, IT contractor jobs citing Clustering also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for Clustering.

1 11 (37.93%) SQL Server
1 11 (37.93%) Windows
2 10 (34.48%) Oracle
2 10 (34.48%) Finance
2 10 (34.48%) Agile Software Development
2 10 (34.48%) Windows Server
3 8 (27.59%) High Availability
3 8 (27.59%) VMware
3 8 (27.59%) Linux
3 8 (27.59%) SQL
3 8 (27.59%) Microsoft
4 7 (24.14%) Windows Server 2003
4 7 (24.14%) Java
4 7 (24.14%) Replication
4 7 (24.14%) Banking
4 7 (24.14%) PowerShell
4 7 (24.14%) Microsoft Clustering
4 7 (24.14%) Performance Tuning
5 6 (20.69%) Relational Database
5 6 (20.69%) DevOps
5 6 (20.69%) Middleware
6 5 (17.24%) Citrix
6 5 (17.24%) Veritas
6 5 (17.24%) T-SQL
6 5 (17.24%) Unix
6 5 (17.24%) Apache
6 5 (17.24%) Python
6 5 (17.24%) SQL Server 2005
6 5 (17.24%) Change Management
6 5 (17.24%) Data Centre

Clustering
Co-occurring IT Skills in the City of 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 5 (17.24%) Apache
2 3 (10.34%) Confluence
3 2 (6.90%) MS Exchange
3 2 (6.90%) Tomcat
4 1 (3.45%) IIS
4 1 (3.45%) nginx
4 1 (3.45%) SharePoint
4 1 (3.45%) SharePoint 2013
Applications
1 1 (3.45%) Microsoft Excel
Cloud Services
1 4 (13.79%) GitHub
2 3 (10.34%) Microsoft Azure
3 2 (6.90%) Amazon AWS
3 2 (6.90%) Cloud Computing
3 2 (6.90%) IaaS
3 2 (6.90%) PaaS
Communications & Networking
1 4 (13.79%) SSL
2 2 (6.90%) BIG-IP
2 2 (6.90%) F5 BIG-IP LTM
2 2 (6.90%) Firewall
2 2 (6.90%) TCP/IP
3 1 (3.45%) HTTP
3 1 (3.45%) LAN
3 1 (3.45%) NAS
3 1 (3.45%) Reverse Proxy
3 1 (3.45%) SAN
3 1 (3.45%) SSH
3 1 (3.45%) WAN
Database & Business Intelligence
1 11 (37.93%) SQL Server
2 6 (20.69%) Relational Database
3 5 (17.24%) SQL Server 2005
3 5 (17.24%) SQL Server Analysis Services
4 4 (13.79%) Microsoft Analysis Services
4 4 (13.79%) SQL Server 2016
5 3 (10.34%) RDBMS
5 3 (10.34%) SQL Server 2012
5 3 (10.34%) SQL Server Integration Services
6 2 (6.90%) Big Data
6 2 (6.90%) DB2
6 2 (6.90%) MySQL
6 2 (6.90%) PostgreSQL
7 1 (3.45%) Apache Cassandra
7 1 (3.45%) Hadoop
7 1 (3.45%) HBase
7 1 (3.45%) MongoDB
7 1 (3.45%) Oracle Database
7 1 (3.45%) SQL Server 2008
7 1 (3.45%) SQL Server 2014
Development Applications
1 3 (10.34%) Bitbucket
1 3 (10.34%) Jenkins
1 3 (10.34%) JIRA
1 3 (10.34%) Subversion
2 2 (6.90%) Team Foundation Server
2 2 (6.90%) Visual Studio
3 1 (3.45%) MSBuild
3 1 (3.45%) NUnit
3 1 (3.45%) SpecFlow
General
1 10 (34.48%) Finance
2 7 (24.14%) Banking
3 4 (13.79%) Investment Banking
4 3 (10.34%) Law
5 1 (3.45%) Digital Economy
5 1 (3.45%) Financial Institution
5 1 (3.45%) French Language
5 1 (3.45%) Front Office
5 1 (3.45%) Legal
5 1 (3.45%) Marketing
Job Titles
1 7 (24.14%) Administrator
1 7 (24.14%) DBA
2 5 (17.24%) Developer
2 5 (17.24%) SQL DBA
2 5 (17.24%) Systems Administrator
3 3 (10.34%) Consultant
3 3 (10.34%) Java Developer
3 3 (10.34%) Linux Administrator
3 3 (10.34%) Linux Systems Administrator
3 3 (10.34%) Systems Support
3 3 (10.34%) Unix Administrator
3 3 (10.34%) Unix Linux Systems Administrator
3 3 (10.34%) Unix Systems Administrator
4 2 (6.90%) 2nd Line Support
4 2 (6.90%) Linux Engineer
4 2 (6.90%) Messaging Consultant
4 2 (6.90%) Messaging Specialist
4 2 (6.90%) Middleware Consultant
4 2 (6.90%) Middleware Specialist
5 1 (3.45%) Linux Support
Libraries, Frameworks & Software Standards
1 6 (20.69%) Middleware
2 4 (13.79%) AngularJS
2 4 (13.79%) jQuery
3 3 (10.34%) Ajax
3 3 (10.34%) Apache Camel
3 3 (10.34%) GWT
3 3 (10.34%) Hibernate
3 3 (10.34%) JSF
3 3 (10.34%) OSGi
3 3 (10.34%) Spring
4 2 (6.90%) .NET
4 2 (6.90%) HTML
4 2 (6.90%) LAPP Stack
4 2 (6.90%) WebSphere MQ
5 1 (3.45%) HTML5
5 1 (3.45%) Managed Extensibility Framework
5 1 (3.45%) Reactive Extensions
5 1 (3.45%) RESTful
5 1 (3.45%) Task Parallel Library
5 1 (3.45%) Unity DI Container
Miscellaneous
1 7 (24.14%) Replication
2 5 (17.24%) Data Centre
3 3 (10.34%) Computer Science
3 3 (10.34%) Enterprise Software
4 2 (6.90%) Client/Server
5 1 (3.45%) Fixed Income
5 1 (3.45%) Wiki
Operating Systems
1 11 (37.93%) Windows
2 10 (34.48%) Windows Server
3 8 (27.59%) Linux
4 7 (24.14%) Windows Server 2003
5 5 (17.24%) Unix
6 3 (10.34%) Red Hat Enterprise Linux
6 3 (10.34%) Windows Server 2008
7 2 (6.90%) Solaris
7 2 (6.90%) Windows XP
8 1 (3.45%) Android
8 1 (3.45%) Apple iOS
8 1 (3.45%) Ubuntu
8 1 (3.45%) Windows Server 2012
Processes & Methodologies
1 10 (34.48%) Agile Software Development
2 8 (27.59%) High Availability
3 7 (24.14%) Performance Tuning
4 6 (20.69%) DevOps
5 5 (17.24%) Change Management
5 5 (17.24%) Continuous Integration
6 4 (13.79%) ITIL
6 4 (13.79%) Line Management
6 4 (13.79%) Scrum
7 3 (10.34%) Disaster Recovery
7 3 (10.34%) Extreme Programming
7 3 (10.34%) Mentoring
7 3 (10.34%) OO
7 3 (10.34%) Open Source
7 3 (10.34%) Performance Monitoring
7 3 (10.34%) RUP
7 3 (10.34%) Scalability Testing
8 2 (6.90%) Business Intelligence
8 2 (6.90%) ETL
8 2 (6.90%) Service Delivery
Programming Languages
1 8 (27.59%) SQL
2 7 (24.14%) Java
2 7 (24.14%) PowerShell
3 5 (17.24%) Bash Shell
3 5 (17.24%) Python
3 5 (17.24%) T-SQL
4 3 (10.34%) C#
4 3 (10.34%) JavaScript
4 3 (10.34%) Perl
4 3 (10.34%) Shell Script
5 1 (3.45%) PHP
5 1 (3.45%) R
5 1 (3.45%) XAML
Qualifications
1 4 (13.79%) Security Cleared
2 3 (10.34%) Degree
3 2 (6.90%) DV Cleared
3 2 (6.90%) RHCE
3 2 (6.90%) SC Cleared
4 1 (3.45%) Computer Science Degree
4 1 (3.45%) ITIL Certification
4 1 (3.45%) MCSD
4 1 (3.45%) Microsoft Certification
4 1 (3.45%) Numerate Degree
Quality Assurance & Compliance
1 2 (6.90%) AS 2805
1 2 (6.90%) ISO 8583
1 2 (6.90%) PCI DSS
2 1 (3.45%) PMO
2 1 (3.45%) QA
System Software
1 4 (13.79%) Active Directory
2 3 (10.34%) VMware ESXi
2 3 (10.34%) VMware Infrastructure
3 2 (6.90%) Hyper-V
3 2 (6.90%) XenApp
4 1 (3.45%) LXC
Systems Management
1 7 (24.14%) Microsoft Clustering
2 2 (6.90%) NetBackup
2 2 (6.90%) Netcool
2 2 (6.90%) OpenView Configuration Management
2 2 (6.90%) Puppet
3 1 (3.45%) Ansible
3 1 (3.45%) BladeLogic
3 1 (3.45%) SCCM
Vendors
1 10 (34.48%) Oracle
2 8 (27.59%) Microsoft
2 8 (27.59%) VMware
3 5 (17.24%) Citrix
3 5 (17.24%) Veritas
4 3 (10.34%) Atlassian
4 3 (10.34%) Red Hat
5 2 (6.90%) Cisco
5 2 (6.90%) F5
5 2 (6.90%) HP
5 2 (6.90%) Intel
5 2 (6.90%) McAfee
5 2 (6.90%) NetApp
5 2 (6.90%) SolarWinds