Period
to 18 November 2019

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 18 November 2019 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
18 Nov 2019
Same period 2018 Same period 2017
Rank 212 241 227
Rank change year-on-year +29 -14 -34
Contract jobs citing Clustering 14 14 29
As % of all contract IT jobs advertised in the City of London 0.24% 0.20% 0.41%
As % of the Miscellaneous category 0.75% 0.51% 0.97%
Number of daily rates quoted 11 6 21
City of London median daily rate £475 £513 £450
Median daily rate % change year-on-year -7.32% +13.89% -5.26%
10th Percentile £363 £423 £325
90th Percentile £538 £600 £550
Central London median daily rate £475 £475 £425
% change year-on-year - +11.76% -10.53%
Number of hourly rates quoted 0 0 2
City of London median hourly rate - - £27.50
Central London median hourly rate - - £27.50

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 1,859 2,765 3,003
As % of all contract IT jobs advertised in the City of London 31.82% 39.84% 42.40%
Number of daily rates quoted 1,419 2,157 2,318
City of London median daily rate £525 £525 £525
10th Percentile £300 £284 £320
90th Percentile £700 £713 £716
Central London median daily rate £525 £525 £525
Number of hourly rates quoted 27 61 36
City of London median hourly rate £21.00 £19.50 £22.26
Median hourly rate % change year-on-year +7.69% -12.39% +17.14%
10th Percentile £12.76 £13.31 £12.88
90th Percentile £51.65 £37.09 £33.25
Central London median hourly rate £21.00 £19.50 £21.23
% change year-on-year +7.69% -8.13% +18.08%

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 18 November 2019.

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 18 November 2019, IT contractor 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 contract job ads across the City of London region with a requirement for Clustering.

1 9 (64.29%) SQL
1 9 (64.29%) SQL Server
2 7 (50.00%) Oracle
3 6 (42.86%) Windows
3 6 (42.86%) PowerShell
4 5 (35.71%) SQL Server 2008
4 5 (35.71%) Oracle Database
4 5 (35.71%) Microsoft Clustering
4 5 (35.71%) Replication
4 5 (35.71%) Oracle RAC
5 4 (28.57%) Oracle Database 11g
5 4 (28.57%) Data Protection
5 4 (28.57%) Banking
5 4 (28.57%) Citrix
5 4 (28.57%) GDPR
5 4 (28.57%) Infrastructure Engineering
6 3 (21.43%) Hyper-V
6 3 (21.43%) Microsoft
6 3 (21.43%) IIS
6 3 (21.43%) Python
6 3 (21.43%) VMware
7 2 (14.29%) Law
7 2 (14.29%) Publishing
7 2 (14.29%) Data Management
7 2 (14.29%) VMware Infrastructure
7 2 (14.29%) Microsoft Office
7 2 (14.29%) Sybase
7 2 (14.29%) DB2
7 2 (14.29%) Perl
7 2 (14.29%) Active Directory

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 3 (21.43%) IIS
2 1 (7.14%) Exchange Server 2013
2 1 (7.14%) Skype for Business
Applications
1 2 (14.29%) Microsoft Office
2 1 (7.14%) Microsoft Excel
2 1 (7.14%) Microsoft PowerPoint
Cloud Services
1 2 (14.29%) Azure
1 2 (14.29%) GitHub
2 1 (7.14%) Office 365
Communications & Networking
1 2 (14.29%) NAS
1 2 (14.29%) SAN
2 1 (7.14%) DHCP
2 1 (7.14%) DNS
2 1 (7.14%) Firewall
2 1 (7.14%) TCP/IP
Database & Business Intelligence
1 9 (64.29%) SQL Server
2 5 (35.71%) Oracle Database
2 5 (35.71%) SQL Server 2008
3 4 (28.57%) Oracle Database 11g
4 2 (14.29%) DB2
4 2 (14.29%) SQL Server 2014
5 1 (7.14%) Data Warehouse
5 1 (7.14%) Neo4j
5 1 (7.14%) PostgreSQL
5 1 (7.14%) SQL Server 2016
5 1 (7.14%) SQL Server Integration Services
5 1 (7.14%) SQL Server Reporting Services
Development Applications
1 2 (14.29%) Jenkins
2 1 (7.14%) Team Foundation Server
General
1 4 (28.57%) Banking
2 2 (14.29%) Law
2 2 (14.29%) Publishing
3 1 (7.14%) Finance
Job Titles
1 8 (57.14%) DBA
2 4 (28.57%) Senior DBA
3 3 (21.43%) SQL DBA
4 2 (14.29%) Developer
4 2 (14.29%) DevOps Engineer
4 2 (14.29%) Infrastructure Engineer
4 2 (14.29%) Linux DevOps Engineer
4 2 (14.29%) Linux Engineer
4 2 (14.29%) Linux/Unix DevOps
4 2 (14.29%) SQL Developer
4 2 (14.29%) SQL Server DBA
5 1 (7.14%) Administrator
5 1 (7.14%) Data Scientist
5 1 (7.14%) Exchange Engineer
5 1 (7.14%) Hyper-V Engineer
5 1 (7.14%) Oracle DBA
5 1 (7.14%) PostgreSQL DBA
5 1 (7.14%) Senior Wintel Engineer
5 1 (7.14%) Wintel Engineer
5 1 (7.14%) Wintel Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 2 (14.29%) RESTful
1 2 (14.29%) Swagger
2 1 (7.14%) Keras
2 1 (7.14%) Natural Language Processing
2 1 (7.14%) PySpark
2 1 (7.14%) scikit-learn
2 1 (7.14%) TensorFlow
Miscellaneous
1 5 (35.71%) Replication
2 2 (14.29%) Blog
3 1 (7.14%) Analytical Skills
Operating Systems
1 6 (42.86%) Windows
2 2 (14.29%) Linux
2 2 (14.29%) Red Hat Enterprise Linux
2 2 (14.29%) Solaris
2 2 (14.29%) SUSE Linux Enterprise Server
2 2 (14.29%) Windows Server
Processes & Methodologies
1 4 (28.57%) Data Protection
1 4 (28.57%) Infrastructure Engineering
2 2 (14.29%) Configuration Management
2 2 (14.29%) Data Management
2 2 (14.29%) DevOps
2 2 (14.29%) Infrastructure as Code
2 2 (14.29%) Open Source
2 2 (14.29%) Prototyping
2 2 (14.29%) Task Automation
3 1 (7.14%) Agile Software Development
3 1 (7.14%) Artificial Intelligence
3 1 (7.14%) B2B
3 1 (7.14%) Change Management
3 1 (7.14%) Continuous Integration
3 1 (7.14%) ETL
3 1 (7.14%) High Availability
3 1 (7.14%) Migration
3 1 (7.14%) Performance Management
3 1 (7.14%) Security Management
3 1 (7.14%) Unit Testing
Programming Languages
1 9 (64.29%) SQL
2 6 (42.86%) PowerShell
3 3 (21.43%) Python
4 2 (14.29%) Perl
5 1 (7.14%) C
5 1 (7.14%) T-SQL
Qualifications
1 1 (7.14%) MCSA
1 1 (7.14%) MCSE
1 1 (7.14%) Microsoft Certification
Quality Assurance & Compliance
1 4 (28.57%) GDPR
2 1 (7.14%) QA
System Software
1 5 (35.71%) Oracle RAC
2 3 (21.43%) Hyper-V
3 2 (14.29%) Active Directory
3 2 (14.29%) Veritas Cluster Server
3 2 (14.29%) Veritas Volume Manager
3 2 (14.29%) VMware Infrastructure
3 2 (14.29%) XenApp
4 1 (7.14%) Citrix Hypervisor
4 1 (7.14%) XenDesktop
Systems Management
1 5 (35.71%) Microsoft Clustering
2 2 (14.29%) Ansible
2 2 (14.29%) Puppet
3 1 (7.14%) SCCM
Vendors
1 7 (50.00%) Oracle
2 4 (28.57%) Citrix
3 3 (21.43%) Microsoft
3 3 (21.43%) VMware
4 2 (14.29%) EMC
4 2 (14.29%) HP
4 2 (14.29%) IBM
4 2 (14.29%) Sybase
4 2 (14.29%) Veritas