Period
to 18 May 2021

The table below looks at the prevalence of the term Clustering in contract job vacancies. 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
UK
6 months to
18 May 2021
Same period 2020 Same period 2019
Rank 424 452 483
Rank change year-on-year +28 +31 -68
Contract jobs citing Clustering 285 195 420
As % of all contract jobs advertised in the UK 0.50% 0.39% 0.46%
As % of the Miscellaneous category 1.70% 1.38% 1.61%
Number of daily rates quoted 194 124 279
10th Percentile £358 £305 £339
25th Percentile £400 £363 £381
Median daily rate (50th Percentile) £475 £425 £443
Median % change year-on-year +11.76% -3.95% +7.27%
75th Percentile £550 £504 £538
90th Percentile £638 £573 £575
UK excluding London median daily rate £410 £425 £413
% change year-on-year -3.53% +3.03% +3.13%
Number of hourly rates quoted 10 6 0
Median hourly rate £60.00 £47.17 -
Median % change year-on-year +27.21% - -
UK excluding London median hourly rate £59.25 £47.25 -
% change year-on-year +25.40% - -

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 with a requirement for generic IT skills.

All Generic IT Skills
UK
Contract vacancies with a requirement for generic IT skills 16,762 14,101 26,117
As % of all contract IT jobs advertised in the UK 29.25% 28.53% 28.43%
Number of daily rates quoted 11,259 9,155 17,276
10th Percentile £288 £238 £285
25th Percentile £400 £363 £375
Median daily rate (50th Percentile) £500 £475 £475
Median % change year-on-year +5.26% - +2.70%
75th Percentile £600 £588 £575
90th Percentile £700 £700 £675
UK excluding London median daily rate £425 £425 £425
Number of hourly rates quoted 628 616 868
10th Percentile £12.18 £12.61 £11.80
25th Percentile £16.00 £16.17 £14.00
Median hourly rate £25.50 £22.82 £20.31
Median % change year-on-year +11.74% +12.34% -5.96%
75th Percentile £47.80 £46.43 £43.75
90th Percentile £60.00 £53.75 £50.00
UK excluding London median hourly rate £23.50 £20.11 £18.75
% change year-on-year +16.86% +7.25% -10.71%

Clustering
Job Vacancy Trend

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

Job vacancy trend for Clustering in the UK

Clustering
Contractor Daily Rate Trend

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

Daily rate trend for Clustering in the UK

Clustering
Daily Rate Histogram

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

Daily rate histogram for Clustering in the UK

Clustering
Contractor Hourly Rate Trend

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

Hourly rate trend for Clustering in the UK

Clustering
Top 17 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Clustering within the UK 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
England +47 245 £475 +11.76% 61
London +47 131 £500 +17.65% 10
UK excluding London +20 117 £410 -3.53% 52
Work from Home -183 92 £488 +14.71% 8
South East +20 43 £403 -5.29% 18
North of England +27 28 £425 +6.25% 11
North West +19 20 £425 +6.25% 11
East of England +24 11 £218 -49.18% 4
South West +42 9 £450 -7.69% 7
Midlands -2 9 £403 -5.29% 11
West Midlands +3 7 £403 -5.29% 9
Northern Ireland +8 6 £450 +15.38%
Scotland -25 6 £375 -9.64%
Yorkshire +24 5 £325 -23.53%
Wales +19 5 £443 +10.63% 1
North East +16 3 £450 +71.43%
East Midlands +5 2 £400 -25.58% 2

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 with a requirement for Clustering.

1 122 (42.81%) Linux
2 117 (41.05%) Windows
3 108 (37.89%) VMware
4 87 (30.53%) VMware Infrastructure
5 86 (30.18%) Security Cleared
6 83 (29.12%) Oracle
7 82 (28.77%) Active Directory
8 81 (28.42%) Windows Server
9 80 (28.07%) Azure
10 67 (23.51%) Microsoft
11 65 (22.81%) SQL Server
11 65 (22.81%) Windows Server 2012
12 63 (22.11%) Java
12 63 (22.11%) High Availability
13 62 (21.75%) Red Hat
14 60 (21.05%) DNS
15 59 (20.70%) SQL
15 59 (20.70%) Red Hat Enterprise Linux
16 58 (20.35%) Performance Tuning
17 56 (19.65%) Unix
18 55 (19.30%) SC Cleared
19 54 (18.95%) AWS
19 54 (18.95%) Microsoft Clustering
19 54 (18.95%) Social Skills
20 52 (18.25%) Finance
21 51 (17.89%) Jenkins
22 50 (17.54%) Agile Software Development
23 49 (17.19%) REST
23 49 (17.19%) Migration
24 48 (16.84%) PowerShell

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 46 (16.14%) SharePoint
2 44 (15.44%) MS Exchange
3 32 (11.23%) Apache
4 28 (9.82%) IIS
5 17 (5.96%) WebLogic
5 17 (5.96%) WebSphere
6 14 (4.91%) Red Hat Fuse
7 11 (3.86%) Tomcat
8 10 (3.51%) MS Project Server
8 10 (3.51%) Oracle SOA Suite
8 10 (3.51%) WebLogic Portal
9 9 (3.16%) WebSphere Application Server
10 7 (2.46%) Apache ServiceMix
10 7 (2.46%) Confluence
10 7 (2.46%) Exchange Server 2010
10 7 (2.46%) IBM Domino
10 7 (2.46%) JBoss
11 6 (2.11%) Anypoint
12 5 (1.75%) Mule ESB
12 5 (1.75%) SAP Portal
Applications
1 15 (5.26%) Microsoft Office
2 10 (3.51%) MS Visio
3 6 (2.11%) Microsoft PowerPoint
3 6 (2.11%) Microsoft Project
4 2 (0.70%) Sketch
Business Applications
1 10 (3.51%) Oracle Applications
1 10 (3.51%) Oracle EBS
2 7 (2.46%) Magento
2 7 (2.46%) Shopify
3 3 (1.05%) Remedy ITSM
4 1 (0.35%) Maximo
4 1 (0.35%) SAP S/4HANA
Cloud Services
1 80 (28.07%) Azure
2 54 (18.95%) AWS
3 39 (13.68%) Microsoft 365
4 27 (9.47%) GitHub
5 23 (8.07%) PaaS
6 20 (7.02%) IaaS
7 16 (5.61%) GCP
7 16 (5.61%) SaaS
8 14 (4.91%) Amazon ECS
8 14 (4.91%) AWS CloudFormation
9 12 (4.21%) Cloud Computing
10 8 (2.81%) Amazon ElastiCache
10 8 (2.81%) Amazon Kinesis
11 7 (2.46%) AWS Lambda
11 7 (2.46%) Azure Active Directory
11 7 (2.46%) Serverless
12 5 (1.75%) OpenShift
13 2 (0.70%) Amazon EMR
13 2 (0.70%) Mimecast
14 1 (0.35%) OneDrive
Communications & Networking
1 60 (21.05%) DNS
2 28 (9.82%) SAN
3 27 (9.47%) TCP/IP
4 24 (8.42%) DHCP
5 23 (8.07%) WAN
6 22 (7.72%) LAN
6 22 (7.72%) WAAS
7 21 (7.37%) Firewall
8 16 (5.61%) iSCSI
9 12 (4.21%) SSL
10 11 (3.86%) HTTP
11 9 (3.16%) Kerberos
11 9 (3.16%) SSH
12 8 (2.81%) FTP
12 8 (2.81%) NAS
12 8 (2.81%) VSAN
13 6 (2.11%) IPv4
13 6 (2.11%) IPv6
14 5 (1.75%) SNMP
15 4 (1.40%) Internet
Database & Business Intelligence
1 65 (22.81%) SQL Server
2 32 (11.23%) Relational Database
3 23 (8.07%) Oracle Database
3 23 (8.07%) PostgreSQL
4 17 (5.96%) MySQL
5 11 (3.86%) Apache Cassandra
5 11 (3.86%) Oracle BI EE
5 11 (3.86%) Redis
6 10 (3.51%) NoSQL
6 10 (3.51%) Oracle Database 10g
6 10 (3.51%) Oracle Database 11g
6 10 (3.51%) Oracle Database 12c
6 10 (3.51%) Oracle Reports
6 10 (3.51%) SQL Server 2008
7 9 (3.16%) RDBMS
7 9 (3.16%) SQL Server 2019
8 8 (2.81%) MongoDB
9 7 (2.46%) SQL Server 2012
10 6 (2.11%) SQL Server 2014
10 6 (2.11%) SQL Server Integration Services
Development Applications
1 51 (17.89%) Jenkins
2 29 (10.18%) Git (software)
3 14 (4.91%) JIRA
4 9 (3.16%) Maven
5 8 (2.81%) Subversion
6 7 (2.46%) Gradle
7 5 (1.75%) JUnit
8 4 (1.40%) Bitbucket
9 3 (1.05%) Hudson
9 3 (1.05%) TeamCity
10 2 (0.70%) Axure RP
10 2 (0.70%) Balsamiq
10 2 (0.70%) Oracle Forms
10 2 (0.70%) Serena SBM
11 1 (0.35%) ER Studio
11 1 (0.35%) ERwin
11 1 (0.35%) IBM UrbanCode
11 1 (0.35%) Sonatype Nexus
11 1 (0.35%) VSS/SourceSafe
General
1 54 (18.95%) Social Skills
2 52 (18.25%) Finance
3 40 (14.04%) Analytical Skills
4 31 (10.88%) Banking
5 26 (9.12%) Public Sector
6 12 (4.21%) Documentation Skills
7 7 (2.46%) Marketing
8 5 (1.75%) Organisational Skills
9 4 (1.40%) Retail
10 3 (1.05%) Financial Institution
10 3 (1.05%) Investment Banking
10 3 (1.05%) Presentation Skills
11 2 (0.70%) Multimedia
11 2 (0.70%) Pharmaceutical
11 2 (0.70%) Telecoms
12 1 (0.35%) Aerospace
12 1 (0.35%) Automotive
12 1 (0.35%) Electronics
12 1 (0.35%) Legal
12 1 (0.35%) Manufacturing
Job Titles
1 64 (22.46%) Architect
2 29 (10.18%) DBA
3 28 (9.82%) Technical Architect
4 27 (9.47%) Developer
5 26 (9.12%) Administrator
6 24 (8.42%) Java Developer
7 19 (6.67%) Consultant
7 19 (6.67%) Solutions Architect
8 14 (4.91%) SQL DBA
9 13 (4.56%) Infrastructure Engineer
10 12 (4.21%) Oracle DBA
10 12 (4.21%) Systems Administrator
11 11 (3.86%) AWS Developer
11 11 (3.86%) Service Operations Specialist
12 10 (3.51%) Infrastructure Architect
12 10 (3.51%) Systems Engineer
13 9 (3.16%) Infrastructure Specialist
13 9 (3.16%) Java Architect
13 9 (3.16%) Senior Developer
14 8 (2.81%) Build Engineer
Libraries, Frameworks & Software Standards
1 49 (17.19%) REST
2 43 (15.09%) Middleware
3 36 (12.63%) Spring
4 30 (10.53%) HTML
5 25 (8.77%) HTML5
6 21 (7.37%) Hibernate
7 20 (7.02%) JMS
8 18 (6.32%) JDBC
9 17 (5.96%) AngularJS
9 17 (5.96%) Spring Boot
10 16 (5.61%) Ajax
11 15 (5.26%) Apache Camel
11 15 (5.26%) GWT
11 15 (5.26%) jQuery
11 15 (5.26%) JSF
11 15 (5.26%) OSGi
11 15 (5.26%) Web Services
12 13 (4.56%) LDAP
13 11 (3.86%) Java EE
13 11 (3.86%) SOAP
Miscellaneous
1 38 (13.33%) Data Centre
2 34 (11.93%) Enterprise Software
3 23 (8.07%) Replication
4 22 (7.72%) EMC VNX
5 16 (5.61%) Management Information System
6 13 (4.56%) LPAR
7 12 (4.21%) Data Structures
7 12 (4.21%) User Experience
8 11 (3.86%) PKI
9 7 (2.46%) Private Cloud
10 6 (2.11%) Greenfield Project
10 6 (2.11%) Hybrid Cloud
11 4 (1.40%) NHS
12 3 (1.05%) Virtual Team
13 2 (0.70%) Driving Licence
13 2 (0.70%) HACMP
13 2 (0.70%) Public Cloud
14 1 (0.35%) CMDB
14 1 (0.35%) Fat Client
14 1 (0.35%) Thin Client
Operating Systems
1 122 (42.81%) Linux
2 117 (41.05%) Windows
3 81 (28.42%) Windows Server
4 65 (22.81%) Windows Server 2012
5 59 (20.70%) Red Hat Enterprise Linux
6 56 (19.65%) Unix
7 36 (12.63%) Windows 10
8 32 (11.23%) Windows Server 2016
9 30 (10.53%) AIX
10 29 (10.18%) Windows Server 2008
10 29 (10.18%) Windows XP
11 20 (7.02%) Solaris
12 18 (6.32%) Windows Server 2019
13 10 (3.51%) Windows Server 2003
14 7 (2.46%) SUSE
15 6 (2.11%) Windows Vista
16 5 (1.75%) Oracle Linux
17 4 (1.40%) CentOS
18 3 (1.05%) Ubuntu
18 3 (1.05%) Windows 7
Processes & Methodologies
1 63 (22.11%) High Availability
2 58 (20.35%) Performance Tuning
3 50 (17.54%) Agile Software Development
4 49 (17.19%) Migration
5 43 (15.09%) Microservices
6 38 (13.33%) Problem-Solving
7 37 (12.98%) ITIL
8 35 (12.28%) Continuous Integration
9 31 (10.88%) Load Balancing
10 29 (10.18%) OO
11 28 (9.82%) Scalability Testing
11 28 (9.82%) Scrum
12 25 (8.77%) Performance Monitoring
12 25 (8.77%) Web Development
13 24 (8.42%) Disaster Recovery
13 24 (8.42%) Infrastructure Engineering
14 21 (7.37%) Mentoring
14 21 (7.37%) Open Source
15 20 (7.02%) Continuous Improvement
16 19 (6.67%) Capacity Planning
Programming Languages
1 63 (22.11%) Java
2 59 (20.70%) SQL
3 48 (16.84%) PowerShell
4 38 (13.33%) JavaScript
5 32 (11.23%) Python
6 20 (7.02%) Shell Script
7 19 (6.67%) Java 8
8 11 (3.86%) Bash Shell
9 8 (2.81%) Go
10 7 (2.46%) PHP
10 7 (2.46%) PL/SQL
11 6 (2.11%) Perl
11 6 (2.11%) T-SQL
11 6 (2.11%) TypeScript
12 3 (1.05%) C
13 2 (0.70%) VBScript
14 1 (0.35%) C#
14 1 (0.35%) C++
14 1 (0.35%) VB.NET
14 1 (0.35%) VBA
Qualifications
1 86 (30.18%) Security Cleared
2 55 (19.30%) SC Cleared
3 26 (9.12%) DV Cleared
4 14 (4.91%) Degree
5 8 (2.81%) AWS Certification
5 8 (2.81%) Computer Science Degree
5 8 (2.81%) Master's Degree
5 8 (2.81%) Microsoft Certification
6 7 (2.46%) VMware Certified Professional (VCP)
7 5 (1.75%) MCITP
8 4 (1.40%) CTC Cleared
8 4 (1.40%) MCSA
9 3 (1.05%) BPSS Clearance
9 3 (1.05%) VCP6
10 2 (0.70%) CCNA
10 2 (0.70%) Cisco Certification
10 2 (0.70%) MCSE
11 1 (0.35%) BC Cleared
11 1 (0.35%) DBS Check
Quality Assurance & Compliance
1 10 (3.51%) QA
2 7 (2.46%) GDPR
2 7 (2.46%) Sarbanes-Oxley
3 5 (1.75%) SLA
4 3 (1.05%) ISO/IEC 27001
4 3 (1.05%) MiFID
5 2 (0.70%) Disclosure Scotland
6 1 (0.35%) Data Quality
6 1 (0.35%) GMP
6 1 (0.35%) IFRS
6 1 (0.35%) NIST
6 1 (0.35%) NIST 800
System Software
1 87 (30.53%) VMware Infrastructure
2 82 (28.77%) Active Directory
3 33 (11.58%) Hyper-V
3 33 (11.58%) VMware ESXi
4 25 (8.77%) Docker
4 25 (8.77%) Virtual Machines
5 16 (5.61%) vSphere
6 13 (4.56%) GPFS
6 13 (4.56%) PowerHA
7 10 (3.51%) DFS Replication
8 8 (2.81%) Microsoft App-V
8 8 (2.81%) NFS
8 8 (2.81%) Virtual Desktop
8 8 (2.81%) VMware NSX
9 7 (2.46%) Oracle RAC
9 7 (2.46%) Postfix
9 7 (2.46%) qmail
10 4 (1.40%) vCloud
10 4 (1.40%) Veritas File System
11 3 (1.05%) Veritas Cluster Server
Systems Management
1 54 (18.95%) Microsoft Clustering
2 43 (15.09%) Ansible
3 33 (11.58%) SCCM
4 25 (8.77%) Failover Clustering
5 24 (8.42%) Kubernetes
6 23 (8.07%) IBM BigFix
7 21 (7.37%) Microsoft Intune
8 18 (6.32%) Puppet
9 15 (5.26%) Oracle RMAN
9 15 (5.26%) Terraform
10 14 (4.91%) vCenter Server
11 13 (4.56%) Opscode Chef
11 13 (4.56%) SCOM
12 12 (4.21%) Salt
13 11 (3.86%) WSUS
14 10 (3.51%) OpenView Configuration Management
14 10 (3.51%) Red Hat Satellite
15 9 (3.16%) Microsoft Data Protection Manager
16 8 (2.81%) SCDPM
16 8 (2.81%) vRealize
Vendors
1 108 (37.89%) VMware
2 83 (29.12%) Oracle
3 67 (23.51%) Microsoft
4 62 (21.75%) Red Hat
5 40 (14.04%) IBM
6 31 (10.88%) EMC
7 23 (8.07%) Dell
8 21 (7.37%) HP
9 20 (7.02%) SAP
10 18 (6.32%) Veritas
11 17 (5.96%) Symantec
12 14 (4.91%) Cisco
13 13 (4.56%) Citrix
13 13 (4.56%) SaltStack
14 10 (3.51%) F5
14 10 (3.51%) NetApp
15 9 (3.16%) Borland
15 9 (3.16%) Lumension
16 8 (2.81%) ArcSight
16 8 (2.81%) BMC