Period
to 25 January 2022

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 25 January 2022 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
25 Jan 2022
Same period 2021 Same period 2020
Rank 435 310 440
Rank change year-on-year -125 +130 +13
Contract jobs citing Clustering 157 90 71
As % of all contract jobs advertised in London 0.42% 0.51% 0.24%
As % of the Miscellaneous category 1.24% 1.43% 0.77%
Number of daily rates quoted 122 67 53
10th Percentile £451 £411 £322
25th Percentile £516 £438 £400
Median daily rate (50th Percentile) £575 £500 £488
Median % change year-on-year +15.00% +2.56% +2.63%
75th Percentile £663 £575 £575
90th Percentile £690 £660 £643
England median daily rate £563 £475 £425
% change year-on-year +18.42% +11.76% -
Number of hourly rates quoted 0 3 1
10th Percentile - - -
25th Percentile - - £17.00
Median hourly rate - £60.00 £18.00
Median % change year-on-year - +233.33% -59.44%
75th Percentile - - £19.00
90th Percentile - - -
England median hourly rate - £60.00 £36.50
% change year-on-year - +64.38% -13.64%

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 12,678 6,273 9,275
As % of all contract IT jobs advertised in London 33.77% 35.43% 31.15%
Number of daily rates quoted 9,391 4,507 6,639
10th Percentile £375 £313 £300
25th Percentile £475 £413 £413
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £700 £638 £625
90th Percentile £788 £725 £713
England median daily rate £540 £475 £475
% change year-on-year +13.60% - -
Number of hourly rates quoted 165 87 122
10th Percentile £17.77 £15.65 £12.44
25th Percentile £24.50 £22.50 £16.66
Median hourly rate £43.74 £28.02 £22.50
Median % change year-on-year +56.10% +24.53% -2.17%
75th Percentile £52.75 £46.00 £38.24
90th Percentile £64.50 £59.25 £52.48
England median hourly rate £25.50 £26.51 £20.50
% change year-on-year -3.81% +29.32% +1.25%

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 25 January 2022.

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 25 January 2022. 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
Jobs
Central London -56 14 £519 -12.45% 12
South London -9 2 £315 -
Clustering
England

For the 6 months to 25 January 2022, 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 86 (54.78%) Linux
2 81 (51.59%) Windows
3 69 (43.95%) SQL
4 62 (39.49%) VMware
5 60 (38.22%) Active Directory
6 59 (37.58%) VMware Infrastructure
7 55 (35.03%) Red Hat
8 46 (29.30%) Microsoft Clustering
9 44 (28.03%) Banking
10 43 (27.39%) Security Cleared
10 43 (27.39%) Windows Server
11 41 (26.11%) Python
12 39 (24.84%) Oracle
12 39 (24.84%) DevOps
13 37 (23.57%) Ansible
14 36 (22.93%) SQL Server
15 35 (22.29%) Load Balancing
15 35 (22.29%) PowerShell
16 34 (21.66%) Azure
17 33 (21.02%) Red Hat Enterprise Linux
18 31 (19.75%) DV Cleared
18 31 (19.75%) DNS
19 30 (19.11%) SC Cleared
20 29 (18.47%) Migration
20 29 (18.47%) AWS
20 29 (18.47%) High Availability
21 27 (17.20%) Microsoft
21 27 (17.20%) CI/CD
22 26 (16.56%) Infrastructure Engineering
23 25 (15.92%) Java

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 21 (13.38%) IIS
2 17 (10.83%) nginx
3 9 (5.73%) MS Exchange
4 8 (5.10%) Apache
4 8 (5.10%) Tomcat
5 7 (4.46%) Confluence
5 7 (4.46%) SharePoint
5 7 (4.46%) Traefik
6 6 (3.82%) JBoss
6 6 (3.82%) WebLogic
7 4 (2.55%) OpenStack
8 3 (1.91%) Exchange Server 2010
9 2 (1.27%) IBM HTTP Server
9 2 (1.27%) Oracle SOA Suite
9 2 (1.27%) Red Hat Fuse
9 2 (1.27%) WebLogic Portal
9 2 (1.27%) WebSphere
9 2 (1.27%) WebSphere Application Server
10 1 (0.64%) Anypoint
10 1 (0.64%) Mule
Applications
1 4 (2.55%) MS Visio
2 3 (1.91%) Microsoft Office
Business Applications
1 3 (1.91%) Oracle EBS
Cloud Services
1 34 (21.66%) Azure
2 29 (18.47%) AWS
3 22 (14.01%) GCP
4 21 (13.38%) GitHub
5 13 (8.28%) IaaS
6 12 (7.64%) Nutanix
7 9 (5.73%) Cloud Computing
8 8 (5.10%) AWS CloudFormation
8 8 (5.10%) SaaS
9 7 (4.46%) Amazon CloudWatch
9 7 (4.46%) Amazon EC2
9 7 (4.46%) PaaS
9 7 (4.46%) Virtual Private Cloud
10 6 (3.82%) Microsoft 365
10 6 (3.82%) Rubrik
11 4 (2.55%) Azure Active Directory
12 2 (1.27%) Power Platform
12 2 (1.27%) Snowflake
13 1 (0.64%) Amazon ECS
13 1 (0.64%) Azure Monitor
Communications & Networking
1 31 (19.75%) DNS
2 24 (15.29%) TCP/IP
3 21 (13.38%) Firewall
4 18 (11.46%) Kerberos
5 13 (8.28%) SAN
5 13 (8.28%) Software-Defined Networking
6 9 (5.73%) DSL
7 7 (4.46%) SSL
8 5 (3.18%) DHCP
8 5 (3.18%) HTTP
8 5 (3.18%) iSCSI
9 4 (2.55%) Internet
9 4 (2.55%) NAS
9 4 (2.55%) NetScaler
10 3 (1.91%) WAN
11 2 (1.27%) FTP
11 2 (1.27%) SMTP
11 2 (1.27%) VPN
12 1 (0.64%) IPv4
12 1 (0.64%) OSPF
Database & Business Intelligence
1 36 (22.93%) SQL Server
2 21 (13.38%) MongoDB
3 19 (12.10%) SQL Server 2012
4 18 (11.46%) SQL Server 2008
4 18 (11.46%) SQL Server 2014
5 17 (10.83%) MySQL
5 17 (10.83%) SQL Server 2016
5 17 (10.83%) SQL Server 2019
6 14 (8.92%) Oracle Database
7 13 (8.28%) Metadata
7 13 (8.28%) Oracle Database 12c
7 13 (8.28%) PostgreSQL
7 13 (8.28%) Relational Database
8 12 (7.64%) Oracle Database 11g
9 10 (6.37%) NoSQL
10 8 (5.10%) MariaDB
11 4 (2.55%) Data Warehouse
11 4 (2.55%) Looker
11 4 (2.55%) Tableau
12 3 (1.91%) Oracle Database 10g
Development Applications
1 22 (14.01%) Subversion
2 19 (12.10%) Git (software)
3 18 (11.46%) GitLab
4 17 (10.83%) SQL Server Management Studio (SSMS)
5 15 (9.55%) TeamCity
6 14 (8.92%) Jenkins
7 11 (7.01%) JIRA
8 3 (1.91%) Flyway
9 2 (1.27%) Bitbucket
9 2 (1.27%) Serena SBM
10 1 (0.64%) AppScan
10 1 (0.64%) Artifactory
10 1 (0.64%) Maven
10 1 (0.64%) Octopus Deploy
10 1 (0.64%) Oracle APEX
10 1 (0.64%) Visual Studio
General
1 44 (28.03%) Banking
2 25 (15.92%) Investment Banking
3 15 (9.55%) Finance
4 14 (8.92%) Social Skills
5 8 (5.10%) Analytical Skills
6 7 (4.46%) Public Sector
7 3 (1.91%) International Banking
8 2 (1.27%) Organisational Skills
8 2 (1.27%) Presentation Skills
8 2 (1.27%) Publishing
9 1 (0.64%) Financial Institution
9 1 (0.64%) Legal
Job Titles
1 38 (24.20%) DBA
2 31 (19.75%) Developer
3 22 (14.01%) SQL DBA
4 18 (11.46%) Architect
5 14 (8.92%) Java Developer
6 13 (8.28%) Infrastructure Engineer
6 13 (8.28%) Knowledge Engineer
6 13 (8.28%) Oracle DBA
7 11 (7.01%) Infrastructure Architect
8 10 (6.37%) Site Reliability Engineer
9 9 (5.73%) Administrator
9 9 (5.73%) Server Engineer
9 9 (5.73%) Windows Engineer
10 8 (5.10%) DevOps Engineer
10 8 (5.10%) Windows Server Engineer
11 6 (3.82%) Site Engineer
11 6 (3.82%) Technical Architect
12 5 (3.18%) Designer
12 5 (3.18%) Infrastructure Designer
12 5 (3.18%) Operations Engineer
Libraries, Frameworks & Software Standards
1 18 (11.46%) HTML
1 18 (11.46%) LDAP
2 14 (8.92%) EJB
3 13 (8.28%) Java EE
3 13 (8.28%) NetworkX
4 12 (7.64%) Spring
5 11 (7.01%) J2EE
6 10 (6.37%) REST
7 9 (5.73%) Guice
7 9 (5.73%) Struts
8 7 (4.46%) cloud-init
9 6 (3.82%) Middleware
10 5 (3.18%) JMS
11 4 (2.55%) JDBC
11 4 (2.55%) Node.js
11 4 (2.55%) RESTful
11 4 (2.55%) Web Services
12 3 (1.91%) EclipseLink
12 3 (1.91%) SOAP
12 3 (1.91%) Spring Boot
Miscellaneous
1 25 (15.92%) Replication
2 13 (8.28%) Algorithms
2 13 (8.28%) Public Cloud
3 12 (7.64%) PKI
4 9 (5.73%) Data Centre
5 3 (1.91%) Blackberry
5 3 (1.91%) NHS
6 2 (1.27%) CMDB
6 2 (1.27%) Driving Licence
6 2 (1.27%) Enterprise Software
6 2 (1.27%) Hedge funds
7 1 (0.64%) Cybercrime
7 1 (0.64%) Data Structures
7 1 (0.64%) Digital Currency
7 1 (0.64%) Fat Client
7 1 (0.64%) Legacy Systems
7 1 (0.64%) Linux Command Line
7 1 (0.64%) Management Information System
7 1 (0.64%) Self-Motivation
7 1 (0.64%) User Experience
Operating Systems
1 86 (54.78%) Linux
2 81 (51.59%) Windows
3 43 (27.39%) Windows Server
4 33 (21.02%) Red Hat Enterprise Linux
5 20 (12.74%) Windows Server 2008
6 16 (10.19%) Windows Server 2016
7 13 (8.28%) Windows Server 2012
8 12 (7.64%) Windows Server 2019
9 10 (6.37%) Solaris
9 10 (6.37%) Ubuntu
9 10 (6.37%) Unix
10 7 (4.46%) CentOS
11 5 (3.18%) Windows 10
12 4 (2.55%) Debian
13 1 (0.64%) VMS
13 1 (0.64%) Windows 7
Processes & Methodologies
1 39 (24.84%) DevOps
2 35 (22.29%) Load Balancing
3 29 (18.47%) High Availability
3 29 (18.47%) Migration
4 27 (17.20%) CI/CD
5 26 (16.56%) Infrastructure Engineering
6 25 (15.92%) ITIL
7 24 (15.29%) Change Management
8 20 (12.74%) Agile Software Development
8 20 (12.74%) Analytics
8 20 (12.74%) Data Security
9 18 (11.46%) Performance Optimisation
10 17 (10.83%) Disaster Recovery
11 16 (10.19%) Configuration Management
12 15 (9.55%) Process Management
12 15 (9.55%) Visualisation
13 14 (8.92%) IT Strategy
13 14 (8.92%) Test Automation
14 13 (8.28%) Graph Visualisation
14 13 (8.28%) Site Reliability Engineering
Programming Languages
1 69 (43.95%) SQL
2 41 (26.11%) Python
3 35 (22.29%) PowerShell
4 25 (15.92%) Java
5 18 (11.46%) JavaScript
6 14 (8.92%) PL/SQL
7 13 (8.28%) Bash
7 13 (8.28%) C
7 13 (8.28%) SPARQL
8 12 (7.64%) Perl
9 10 (6.37%) T-SQL
10 9 (5.73%) Go
10 9 (5.73%) Groovy
10 9 (5.73%) Shell Script
11 8 (5.10%) Ruby
12 5 (3.18%) VBA
13 4 (2.55%) Korn
14 3 (1.91%) C++
14 3 (1.91%) LookML
15 2 (1.27%) R
Qualifications
1 43 (27.39%) Security Cleared
2 31 (19.75%) DV Cleared
3 30 (19.11%) SC Cleared
4 5 (3.18%) Degree
5 4 (2.55%) Microsoft Certification
6 3 (1.91%) MCSE
7 2 (1.27%) BPSS Clearance
7 2 (1.27%) MCSA
7 2 (1.27%) VMware Certified Professional (VCP)
8 1 (0.64%) MCITP
8 1 (0.64%) VCP6
Quality Assurance & Compliance
1 17 (10.83%) GDPR
2 16 (10.19%) Sarbanes-Oxley
3 7 (4.46%) NCSC
4 5 (3.18%) SLA
5 2 (1.27%) Data Quality
5 2 (1.27%) QA
6 1 (0.64%) Disclosure Scotland
System Software
1 60 (38.22%) Active Directory
2 59 (37.58%) VMware Infrastructure
3 21 (13.38%) Docker
4 16 (10.19%) vSphere
5 13 (8.28%) VMware NSX
6 12 (7.64%) VMware ESXi
7 10 (6.37%) Oracle RAC
8 4 (2.55%) Virtual Machines
9 3 (1.91%) Firmware
9 3 (1.91%) Hyper-V
9 3 (1.91%) NFS
9 3 (1.91%) Terminal Services
9 3 (1.91%) XenApp
10 2 (1.27%) IAG
10 2 (1.27%) Virtual Desktop
11 1 (0.64%) DFS Replication
11 1 (0.64%) vCloud
Systems Management
1 46 (29.30%) Microsoft Clustering
2 37 (23.57%) Ansible
3 22 (14.01%) Terraform
4 21 (13.38%) Kubernetes
5 15 (9.55%) Prometheus
5 15 (9.55%) ZABBIX
6 14 (8.92%) vRealize
7 13 (8.28%) Cisco CUCM
7 13 (8.28%) vRealize Orchestrator
8 12 (7.64%) Puppet
9 10 (6.37%) Data Guard
10 9 (5.73%) Grafana
11 8 (5.10%) Failover Clustering
11 8 (5.10%) Nagios
11 8 (5.10%) yum
12 7 (4.46%) Control-M
12 7 (4.46%) Docker Swarm
12 7 (4.46%) EMC NetWorker
12 7 (4.46%) Tivoli
12 7 (4.46%) Tivoli Storage Manager
Vendors
1 62 (39.49%) VMware
2 55 (35.03%) Red Hat
3 39 (24.84%) Oracle
4 27 (17.20%) Microsoft
5 20 (12.74%) Cisco
6 14 (8.92%) Splunk
6 14 (8.92%) Sybase
7 13 (8.28%) CheckPoint
7 13 (8.28%) ServiceNow
8 11 (7.01%) IBM
9 10 (6.37%) EMC
10 8 (5.10%) CyberArk
11 7 (4.46%) BMC
11 7 (4.46%) Citrix
11 7 (4.46%) F5
11 7 (4.46%) NetApp
11 7 (4.46%) PagerDuty
11 7 (4.46%) Qualys
12 5 (3.18%) SaltStack
12 5 (3.18%) SolarWinds