Period
to 18 May 2021

The table below looks at the prevalence of the term Clustering in contract job vacancies advertised in London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Clustering over the 6 months to 18 May 2021 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
England > London
6 months to
18 May 2021
Same period 2020 Same period 2019
Rank 330 377 452
Rank change year-on-year +47 +75 -4
Contract jobs citing Clustering 131 46 161
As % of all contract jobs advertised in London 0.55% 0.23% 0.40%
As % of the Miscellaneous category 1.66% 0.70% 1.25%
Number of daily rates quoted 94 25 115
10th Percentile £387 " £369
25th Percentile £419 £350 £413
Median daily rate (50th Percentile) £500 £425 £500
Median % change year-on-year +17.65% -15.00% +5.26%
75th Percentile £588 £519 £563
90th Percentile £700 £539 £590
England median daily rate £475 £425 £450
% change year-on-year +11.76% -5.56% +5.88%
Number of hourly rates quoted 3 2 0
Median hourly rate £60.00 £47.17 -
Median % change year-on-year +27.21% - -
England median hourly rate £60.00 £46.50 -
% change year-on-year +29.03% - -

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 London with a requirement for generic IT skills.

All Generic IT Skills
London
Contract vacancies with a requirement for generic IT skills 7,884 6,550 12,925
As % of all contract IT jobs advertised in London 33.02% 32.21% 31.73%
Number of daily rates quoted 5,510 4,759 9,238
10th Percentile £350 £313 £325
25th Percentile £431 £413 £420
Median daily rate (50th Percentile) £539 £525 £525
Median % change year-on-year +2.67% - +5.00%
75th Percentile £650 £638 £625
90th Percentile £738 £725 £700
England median daily rate £500 £475 £475
% change year-on-year +5.26% - -
Number of hourly rates quoted 138 114 187
10th Percentile £15.04 £12.98 £12.76
25th Percentile £21.25 £18.00 £18.56
Median hourly rate £31.82 £32.10 £24.95
Median % change year-on-year -0.86% +28.64% +3.96%
75th Percentile £47.50 £47.69 £38.50
90th Percentile £60.00 £53.53 £51.13
England median hourly rate £25.75 £21.57 £21.00
% change year-on-year +19.38% +2.71% -4.55%

Clustering
Job Vacancy Trend in London

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

Job vacancy trend for Clustering in London

Clustering
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing Clustering in London.

Daily rate trend for Clustering in London

Clustering
Daily Rate Histogram in London

Daily rate distribution for jobs citing Clustering in London over the 6 months to 18 May 2021.

Daily rate histogram for Clustering in London

Clustering
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing Clustering in London.

Hourly rate trend for Clustering in London

Clustering
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Clustering within the London region over the 6 months to 18 May 2021. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +37 16 £700 +55.56% 3
East London - 3 £403 -
South London +37 2 - -
West London - 2 £250 - 1
Clustering
England

For the 6 months to 18 May 2021, 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 London region with a requirement for Clustering.

1 66 (50.38%) Linux
2 49 (37.40%) High Availability
2 49 (37.40%) Performance Tuning
3 44 (33.59%) Java
3 44 (33.59%) Oracle
4 42 (32.06%) Finance
5 41 (31.30%) Agile Software Development
6 39 (29.77%) REST
6 39 (29.77%) Jenkins
7 38 (29.01%) AWS
8 37 (28.24%) Microservices
9 35 (26.72%) VMware
10 34 (25.95%) Spring
11 32 (24.43%) Continuous Integration
11 32 (24.43%) Unix
11 32 (24.43%) Windows
12 30 (22.90%) JavaScript
13 29 (22.14%) HTML
13 29 (22.14%) OO
13 29 (22.14%) Banking
14 28 (21.37%) Scalability Testing
14 28 (21.37%) Red Hat
14 28 (21.37%) Enterprise Software
15 26 (19.85%) Scrum
15 26 (19.85%) Red Hat Enterprise Linux
15 26 (19.85%) Relational Database
16 25 (19.08%) VMware Infrastructure
16 25 (19.08%) HTML5
16 25 (19.08%) Web Development
17 23 (17.56%) SQL

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 16 (12.21%) Apache
2 14 (10.69%) Red Hat Fuse
3 10 (7.63%) Oracle SOA Suite
3 10 (7.63%) WebLogic
3 10 (7.63%) WebLogic Portal
4 7 (5.34%) MS Exchange
5 5 (3.82%) Confluence
5 5 (3.82%) SharePoint
6 4 (3.05%) Anypoint
6 4 (3.05%) Mule
6 4 (3.05%) Mule ESB
6 4 (3.05%) OpenStack
7 3 (2.29%) IIS
7 3 (2.29%) Tomcat
8 2 (1.53%) Exchange Server 2010
8 2 (1.53%) Oracle Coherence
8 2 (1.53%) SAS
9 1 (0.76%) Adobe Experience Manager
9 1 (0.76%) Apache Pig
9 1 (0.76%) Skype for Business
Applications
1 3 (2.29%) MS Visio
2 2 (1.53%) Microsoft Office
2 2 (1.53%) Sketch
Business Applications
1 10 (7.63%) Oracle Applications
1 10 (7.63%) Oracle EBS
2 3 (2.29%) Remedy ITSM
Cloud Services
1 38 (29.01%) AWS
2 23 (17.56%) Azure
3 19 (14.50%) GitHub
4 15 (11.45%) SaaS
5 14 (10.69%) Amazon ECS
5 14 (10.69%) AWS CloudFormation
5 14 (10.69%) PaaS
6 9 (6.87%) GCP
6 9 (6.87%) IaaS
7 8 (6.11%) Amazon ElastiCache
7 8 (6.11%) Amazon Kinesis
7 8 (6.11%) Microsoft 365
8 5 (3.82%) Cloud Computing
9 2 (1.53%) Amazon EMR
9 2 (1.53%) Mimecast
9 2 (1.53%) OpenShift
10 1 (0.76%) Amazon S3
10 1 (0.76%) Azure Active Directory
10 1 (0.76%) OneDrive
Communications & Networking
1 19 (14.50%) TCP/IP
2 16 (12.21%) DNS
3 10 (7.63%) SAN
4 9 (6.87%) Firewall
5 8 (6.11%) DHCP
5 8 (6.11%) iSCSI
6 7 (5.34%) Kerberos
6 7 (5.34%) NAS
7 5 (3.82%) WAN
8 4 (3.05%) Internet
8 4 (3.05%) LAN
9 3 (2.29%) HTTP
9 3 (2.29%) SSL
9 3 (2.29%) Wireshark
10 2 (1.53%) Fibre Channel
10 2 (1.53%) NetScaler
10 2 (1.53%) VLAN
10 2 (1.53%) VoIP
11 1 (0.76%) 4G
11 1 (0.76%) FCoE
Database & Business Intelligence
1 26 (19.85%) Relational Database
2 17 (12.98%) SQL Server
3 15 (11.45%) PostgreSQL
4 12 (9.16%) Oracle Database
5 11 (8.40%) Oracle BI EE
6 10 (7.63%) Oracle Database 10g
6 10 (7.63%) Oracle Database 11g
6 10 (7.63%) Oracle Database 12c
7 9 (6.87%) RDBMS
8 7 (5.34%) Redis
9 4 (3.05%) Hadoop
9 4 (3.05%) Oracle Reports
9 4 (3.05%) SQL Server 2012
9 4 (3.05%) SQL Server 2016
9 4 (3.05%) SQL Server 2019
10 3 (2.29%) Looker
10 3 (2.29%) MongoDB
11 2 (1.53%) NoSQL
11 2 (1.53%) SQL Server 2014
11 2 (1.53%) Tableau
Development Applications
1 39 (29.77%) Jenkins
2 13 (9.92%) Git (software)
3 7 (5.34%) Gradle
3 7 (5.34%) Maven
4 6 (4.58%) Subversion
5 5 (3.82%) JIRA
6 4 (3.05%) JUnit
7 3 (2.29%) TeamCity
8 2 (1.53%) Axure RP
8 2 (1.53%) Balsamiq
8 2 (1.53%) Serena SBM
9 1 (0.76%) ER Studio
9 1 (0.76%) ERwin
9 1 (0.76%) Hudson
9 1 (0.76%) Sonatype Nexus
General
1 42 (32.06%) Finance
2 29 (22.14%) Banking
3 14 (10.69%) Analytical Skills
3 14 (10.69%) Social Skills
4 4 (3.05%) Marketing
4 4 (3.05%) Public Sector
5 3 (2.29%) Financial Institution
5 3 (2.29%) Investment Banking
5 3 (2.29%) Retail
6 2 (1.53%) Multimedia
6 2 (1.53%) Organisational Skills
7 1 (0.76%) Documentation Skills
7 1 (0.76%) Dutch Language
7 1 (0.76%) International Banking
7 1 (0.76%) Legal
7 1 (0.76%) Pharmaceutical
7 1 (0.76%) Presentation Skills
7 1 (0.76%) Spanish Language
Job Titles
1 27 (20.61%) Developer
2 26 (19.85%) Architect
3 24 (18.32%) Java Developer
4 15 (11.45%) Administrator
5 14 (10.69%) DBA
6 11 (8.40%) AWS Developer
6 11 (8.40%) Service Operations Specialist
6 11 (8.40%) Technical Architect
7 10 (7.63%) Oracle DBA
7 10 (7.63%) Solutions Architect
8 9 (6.87%) Senior Developer
9 8 (6.11%) Java Architect
9 8 (6.11%) Java Solutions Architect
9 8 (6.11%) Oracle Applications DBA
9 8 (6.11%) Senior Java Developer
9 8 (6.11%) Systems Administrator
10 5 (3.82%) Consultant
11 4 (3.05%) Operations Support Specialist
11 4 (3.05%) Support Specialist
11 4 (3.05%) Unix Support
Libraries, Frameworks & Software Standards
1 39 (29.77%) REST
2 34 (25.95%) Spring
3 29 (22.14%) HTML
4 25 (19.08%) HTML5
5 19 (14.50%) Hibernate
6 18 (13.74%) JMS
7 17 (12.98%) JDBC
7 17 (12.98%) Spring Boot
8 16 (12.21%) AngularJS
8 16 (12.21%) Middleware
9 15 (11.45%) Ajax
9 15 (11.45%) Apache Camel
9 15 (11.45%) GWT
9 15 (11.45%) jQuery
9 15 (11.45%) JSF
10 14 (10.69%) OSGi
11 10 (7.63%) Java EE
11 10 (7.63%) Kafka
12 9 (6.87%) Redux
12 9 (6.87%) SOAP
Miscellaneous
1 28 (21.37%) Enterprise Software
2 15 (11.45%) Replication
3 10 (7.63%) Data Centre
3 10 (7.63%) Data Structures
4 8 (6.11%) Management Information System
5 6 (4.58%) LPAR
6 5 (3.82%) Greenfield Project
7 3 (2.29%) PKI
8 2 (1.53%) Driving Licence
8 2 (1.53%) HACMP
8 2 (1.53%) Public Cloud
8 2 (1.53%) User Experience
9 1 (0.76%) EMC VNX
9 1 (0.76%) Hybrid Cloud
9 1 (0.76%) Linux Command Line
9 1 (0.76%) Self-Motivation
9 1 (0.76%) Virtual Team
Operating Systems
1 66 (50.38%) Linux
2 32 (24.43%) Unix
2 32 (24.43%) Windows
3 26 (19.85%) Red Hat Enterprise Linux
4 17 (12.98%) Windows Server
5 13 (9.92%) Solaris
6 12 (9.16%) Windows Server 2008
6 12 (9.16%) Windows Server 2012
6 12 (9.16%) Windows Server 2016
7 11 (8.40%) AIX
8 8 (6.11%) Windows Server 2019
9 6 (4.58%) Windows 10
10 2 (1.53%) CentOS
10 2 (1.53%) HPUX
10 2 (1.53%) SUSE
10 2 (1.53%) Ubuntu
10 2 (1.53%) Windows 7
11 1 (0.76%) Data ONTAP
11 1 (0.76%) Windows Server 2003
11 1 (0.76%) Windows XP
Processes & Methodologies
1 49 (37.40%) High Availability
1 49 (37.40%) Performance Tuning
2 41 (31.30%) Agile Software Development
3 37 (28.24%) Microservices
4 32 (24.43%) Continuous Integration
5 29 (22.14%) OO
6 28 (21.37%) Scalability Testing
7 26 (19.85%) Scrum
8 25 (19.08%) Web Development
9 20 (15.27%) Continuous Improvement
10 19 (14.50%) Mentoring
10 19 (14.50%) Open Source
11 17 (12.98%) Performance Monitoring
12 16 (12.21%) Migration
13 15 (11.45%) Extreme Programming
13 15 (11.45%) RUP
14 14 (10.69%) Multithreading
14 14 (10.69%) Problem-Solving
14 14 (10.69%) SOA
15 13 (9.92%) Configuration Management
Programming Languages
1 44 (33.59%) Java
2 30 (22.90%) JavaScript
3 23 (17.56%) SQL
4 20 (15.27%) Python
5 19 (14.50%) Java 8
6 17 (12.98%) PowerShell
7 6 (4.58%) Perl
7 6 (4.58%) PL/SQL
8 3 (2.29%) Bash Shell
8 3 (2.29%) Shell Script
9 2 (1.53%) VBScript
10 1 (0.76%) C
10 1 (0.76%) C#
10 1 (0.76%) C++
10 1 (0.76%) Go
10 1 (0.76%) Kotlin
10 1 (0.76%) Scala
10 1 (0.76%) T-SQL
10 1 (0.76%) VB.NET
10 1 (0.76%) VBA
Qualifications
1 14 (10.69%) Degree
2 12 (9.16%) Security Cleared
3 9 (6.87%) SC Cleared
4 8 (6.11%) AWS Certification
4 8 (6.11%) Computer Science Degree
4 8 (6.11%) Master's Degree
5 4 (3.05%) MCITP
5 4 (3.05%) Microsoft Certification
5 4 (3.05%) VMware Certified Professional (VCP)
6 3 (2.29%) DV Cleared
6 3 (2.29%) MCSA
7 2 (1.53%) VCP6
8 1 (0.76%) DBS Check
8 1 (0.76%) MCSE
Quality Assurance & Compliance
1 10 (7.63%) QA
2 7 (5.34%) GDPR
2 7 (5.34%) Sarbanes-Oxley
3 3 (2.29%) MiFID
3 3 (2.29%) SLA
4 1 (0.76%) Data Quality
4 1 (0.76%) IFRS
System Software
1 25 (19.08%) VMware Infrastructure
2 20 (15.27%) Active Directory
3 13 (9.92%) VMware ESXi
4 7 (5.34%) NFS
5 6 (4.58%) Docker
5 6 (4.58%) GPFS
5 6 (4.58%) PowerHA
5 6 (4.58%) vSphere
6 5 (3.82%) Oracle RAC
6 5 (3.82%) Virtual Machines
7 4 (3.05%) Hyper-V
7 4 (3.05%) Veritas File System
8 3 (2.29%) KVM
8 3 (2.29%) vCloud
8 3 (2.29%) Veritas Cluster Server
8 3 (2.29%) VMware NSX
9 2 (1.53%) XenApp
10 1 (0.76%) DFS Replication
10 1 (0.76%) SRDF
10 1 (0.76%) XenDesktop
Systems Management
1 23 (17.56%) Ansible
2 15 (11.45%) Microsoft Clustering
3 14 (10.69%) Puppet
4 12 (9.16%) Opscode Chef
4 12 (9.16%) Salt
5 10 (7.63%) Oracle RMAN
6 7 (5.34%) Kubernetes
7 4 (3.05%) Failover Clustering
7 4 (3.05%) Netcool
7 4 (3.05%) Red Hat Satellite
7 4 (3.05%) vCenter Server
8 3 (2.29%) BladeLogic
8 3 (2.29%) CloudHub
8 3 (2.29%) Control-M
8 3 (2.29%) EMC NetWorker
8 3 (2.29%) Icinga
8 3 (2.29%) QRadar
8 3 (2.29%) Terraform
8 3 (2.29%) Tivoli
8 3 (2.29%) Tivoli Storage Manager
Vendors
1 44 (33.59%) Oracle
2 35 (26.72%) VMware
3 28 (21.37%) Red Hat
4 18 (13.74%) IBM
5 17 (12.98%) Microsoft
6 15 (11.45%) Symantec
6 15 (11.45%) Veritas
7 14 (10.69%) Dell
8 13 (9.92%) HP
8 13 (9.92%) SaltStack
9 9 (6.87%) Cisco
10 8 (6.11%) EMC
11 7 (5.34%) Citrix
12 6 (4.58%) BMC
13 5 (3.82%) MuleSoft
13 5 (3.82%) NetApp
14 4 (3.05%) Dell Compellent
14 4 (3.05%) EqualLogic
14 4 (3.05%) F5
14 4 (3.05%) Infoblox