Period
to 25 October 2021

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 25 October 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
Central London > City of London
6 months to
25 Oct 2021
Same period 2020 Same period 2019
Rank 166 101 217
Rank change year-on-year -65 +116 +33
Contract jobs citing Clustering 11 17 15
As % of all contract jobs advertised in the City of London 0.28% 0.95% 0.25%
As % of the Miscellaneous category 0.74% 2.66% 0.84%
Number of daily rates quoted 10 15 11
10th Percentile £461 £440 £413
25th Percentile £488 £498 £436
Median daily rate (50th Percentile) £525 £625 £488
Median % change year-on-year -16.00% +28.21% -7.14%
75th Percentile £572 £650 £525
90th Percentile £650 " £575
Central London median daily rate £525 £625 £481
% change year-on-year -16.00% +29.87% +1.32%

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 1,479 639 1,790
As % of all contract IT jobs advertised in the City of London 37.96% 35.62% 30.12%
Number of daily rates quoted 1,104 444 1,386
10th Percentile £381 £308 £313
25th Percentile £489 £413 £425
Median daily rate (50th Percentile) £600 £525 £525
Median % change year-on-year +14.24% - -
75th Percentile £688 £626 £625
90th Percentile £776 £725 £700
Central London median daily rate £600 £525 £525
% change year-on-year +14.29% - -
Number of hourly rates quoted 24 23 31
10th Percentile £9.50 £15.50 £11.75
25th Percentile £20.94 £22.75 £13.01
Median hourly rate £34.75 £36.00 £20.50
Median % change year-on-year -3.47% +75.61% +6.49%
75th Percentile £42.81 £46.00 £30.32
90th Percentile £61.75 £47.75 £49.13
Central London median hourly rate £35.00 £35.50 £21.00
% change year-on-year -1.41% +69.05% +7.69%

Clustering
Job Vacancy Trend in the City of London

Job postings citing Clustering as a proportion 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

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

Daily rate trend for Clustering in the City of London

Clustering
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Clustering in the City of London over the 6 months to 25 October 2021.

Daily rate histogram for Clustering in the City of London

Clustering
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for Clustering in the City of London

For the 6 months to 25 October 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 City of London region with a requirement for Clustering.

1 6 (54.55%) Windows
1 6 (54.55%) Microsoft
1 6 (54.55%) VMware
1 6 (54.55%) Banking
1 6 (54.55%) VMware Infrastructure
2 5 (45.45%) High Availability
2 5 (45.45%) Windows Server 2008
2 5 (45.45%) Active Directory
2 5 (45.45%) DNS
2 5 (45.45%) Microsoft Clustering
3 4 (36.36%) Windows Server
3 4 (36.36%) Infrastructure Engineering
3 4 (36.36%) Subversion
3 4 (36.36%) Azure
4 3 (27.27%) AWS
4 3 (27.27%) VMware ESXi
4 3 (27.27%) Microsoft 365
4 3 (27.27%) GitHub
4 3 (27.27%) Windows Server 2012
4 3 (27.27%) Jenkins
4 3 (27.27%) International Banking
4 3 (27.27%) EMC
4 3 (27.27%) LDAP
4 3 (27.27%) Kerberos
4 3 (27.27%) TCP/IP
4 3 (27.27%) Java
4 3 (27.27%) SQL Server
4 3 (27.27%) Data Security
4 3 (27.27%) Finance
4 3 (27.27%) Migration

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 2 (18.18%) Confluence
1 2 (18.18%) SharePoint
2 1 (9.09%) Apache
2 1 (9.09%) Exchange Server 2010
2 1 (9.09%) JBoss
2 1 (9.09%) MS Exchange
2 1 (9.09%) Tomcat
2 1 (9.09%) WebLogic
Cloud Services
1 4 (36.36%) Azure
2 3 (27.27%) AWS
2 3 (27.27%) GitHub
2 3 (27.27%) Microsoft 365
3 2 (18.18%) Amazon ECS
3 2 (18.18%) AWS CloudFormation
3 2 (18.18%) IaaS
4 1 (9.09%) Cloud Computing
4 1 (9.09%) GCP
4 1 (9.09%) PaaS
4 1 (9.09%) SaaS
Communications & Networking
1 5 (45.45%) DNS
2 3 (27.27%) Kerberos
2 3 (27.27%) TCP/IP
3 2 (18.18%) DHCP
4 1 (9.09%) Fibre Channel
4 1 (9.09%) iSCSI
4 1 (9.09%) NetScaler
4 1 (9.09%) SAN
4 1 (9.09%) SSL
Database & Business Intelligence
1 3 (27.27%) SQL Server
2 1 (9.09%) Oracle Database
2 1 (9.09%) SQL Server 2014
Development Applications
1 4 (36.36%) Subversion
2 3 (27.27%) Jenkins
3 2 (18.18%) JIRA
3 2 (18.18%) TeamCity
4 1 (9.09%) Git (software)
4 1 (9.09%) Oracle APEX
4 1 (9.09%) Serena SBM
General
1 6 (54.55%) Banking
2 3 (27.27%) Finance
2 3 (27.27%) International Banking
3 1 (9.09%) Financial Institution
3 1 (9.09%) Investment Banking
3 1 (9.09%) Legal
3 1 (9.09%) Publishing
Job Titles
1 4 (36.36%) VMware Engineer
2 3 (27.27%) Azure Engineer
2 3 (27.27%) Azure Infrastructure Engineer
2 3 (27.27%) Infrastructure Engineer
2 3 (27.27%) VMware Infrastructure Engineer
3 2 (18.18%) AWS Developer
3 2 (18.18%) DBA
3 2 (18.18%) Developer
3 2 (18.18%) Java Developer
3 2 (18.18%) Microsoft 365 Engineer
3 2 (18.18%) Site Engineer
3 2 (18.18%) Site Reliability Engineer
4 1 (9.09%) Analyst
4 1 (9.09%) Applications Architect
4 1 (9.09%) Architect
4 1 (9.09%) Database Analyst
4 1 (9.09%) Oracle DBA
4 1 (9.09%) Server Engineer
4 1 (9.09%) SQL DBA
4 1 (9.09%) Technical Architect
Libraries, Frameworks & Software Standards
1 3 (27.27%) LDAP
1 3 (27.27%) REST
2 2 (18.18%) HTML
2 2 (18.18%) HTML5
2 2 (18.18%) React
2 2 (18.18%) Redux
2 2 (18.18%) Spring
2 2 (18.18%) Spring Boot
3 1 (9.09%) JDBC
3 1 (9.09%) JMS
3 1 (9.09%) Middleware
Miscellaneous
1 2 (18.18%) Data Structures
1 2 (18.18%) Enterprise Software
1 2 (18.18%) Legacy Systems
1 2 (18.18%) Replication
2 1 (9.09%) EMC VMAX
2 1 (9.09%) Hedge funds
2 1 (9.09%) Mainframe
Operating Systems
1 6 (54.55%) Windows
2 5 (45.45%) Windows Server 2008
3 4 (36.36%) Windows Server
4 3 (27.27%) Windows Server 2012
5 2 (18.18%) Linux
5 2 (18.18%) Windows Server 2016
5 2 (18.18%) Windows Server 2019
6 1 (9.09%) Red Hat Enterprise Linux
6 1 (9.09%) Solaris
6 1 (9.09%) Unix
Processes & Methodologies
1 5 (45.45%) High Availability
2 4 (36.36%) Infrastructure Engineering
3 3 (27.27%) Data Security
3 3 (27.27%) DevOps
3 3 (27.27%) Migration
3 3 (27.27%) Security Hardening
4 2 (18.18%) Agile Software Development
4 2 (18.18%) Configuration Management
4 2 (18.18%) Continuous Integration
4 2 (18.18%) Event-Driven
4 2 (18.18%) Event-Driven Architecture
4 2 (18.18%) Microservices
4 2 (18.18%) Multithreading
4 2 (18.18%) OO
4 2 (18.18%) Performance Monitoring
4 2 (18.18%) Performance Tuning
4 2 (18.18%) Scalability Testing
4 2 (18.18%) Site Reliability Engineering
4 2 (18.18%) Storage Management
4 2 (18.18%) Web Development
Programming Languages
1 3 (27.27%) Java
2 2 (18.18%) JavaScript
3 1 (9.09%) ALGOL
3 1 (9.09%) COBOL
3 1 (9.09%) PL/SQL
3 1 (9.09%) PowerShell
3 1 (9.09%) Python
3 1 (9.09%) Shell Script
3 1 (9.09%) SQL
3 1 (9.09%) VBA
Qualifications
1 1 (9.09%) MCP
Quality Assurance & Compliance
1 2 (18.18%) GDPR
2 1 (9.09%) Sarbanes-Oxley
System Software
1 6 (54.55%) VMware Infrastructure
2 5 (45.45%) Active Directory
3 3 (27.27%) VMware ESXi
4 2 (18.18%) Docker
5 1 (9.09%) IAG
5 1 (9.09%) Oracle RAC
5 1 (9.09%) SRDF
5 1 (9.09%) vSphere
Systems Management
1 5 (45.45%) Microsoft Clustering
2 3 (27.27%) Ansible
3 2 (18.18%) Control-M
3 2 (18.18%) EMC NetWorker
3 2 (18.18%) Kubernetes
3 2 (18.18%) Netcool
3 2 (18.18%) Opscode Chef
3 2 (18.18%) Puppet
3 2 (18.18%) QRadar
3 2 (18.18%) Terraform
3 2 (18.18%) Tivoli
3 2 (18.18%) Tivoli Storage Manager
4 1 (9.09%) BMC PATROL
4 1 (9.09%) Data Guard
4 1 (9.09%) Icinga
4 1 (9.09%) Norton AntiVirus
4 1 (9.09%) Oracle Enterprise Manager
4 1 (9.09%) Red Hat Satellite
Vendors
1 6 (54.55%) Microsoft
1 6 (54.55%) VMware
2 3 (27.27%) EMC
3 2 (18.18%) BMC
3 2 (18.18%) Cisco
3 2 (18.18%) CyberArk
3 2 (18.18%) IBM
3 2 (18.18%) Oracle
3 2 (18.18%) Qualys
3 2 (18.18%) SaltStack
3 2 (18.18%) Splunk
4 1 (9.09%) Dynatrace
4 1 (9.09%) Equitrac
4 1 (9.09%) F5
4 1 (9.09%) Infoblox
4 1 (9.09%) Ivanti
4 1 (9.09%) LogicMonitor
4 1 (9.09%) Nimble Storage
4 1 (9.09%) ServiceNow
4 1 (9.09%) ThinPrint