Period
to 25 February 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 25 February 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
25 Feb 2021
Same period 2020 Same period 2019
Rank 309 430 441
Rank change year-on-year +121 +11 -1
Contract jobs citing Clustering 110 64 191
As % of all contract jobs advertised in London 0.56% 0.23% 0.44%
As % of the Miscellaneous category 1.47% 0.66% 1.24%
Number of daily rates quoted 110 47 138
Median daily rate £525 £475 £494
Median daily rate % change year-on-year +10.53% -3.80% -1.25%
10th Percentile £400 £341 £343
90th Percentile £700 £643 £575
England median daily rate £490 £431 £430
% change year-on-year +13.82% +0.12% -
Number of hourly rates quoted 6 1 2
Median hourly rate £60.00 £18.00 £44.38
Median hourly rate % change year-on-year +233.33% -59.44% +38.70%
England median hourly rate £60.00 £39.50 £44.38
% change year-on-year +51.90% -11.00% +38.70%

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 7,466 9,740 15,370
As % of all contract IT jobs advertised in London 37.96% 34.35% 35.18%
Number of daily rates quoted 5,209 6,933 11,036
Median daily rate £525 £513 £525
Median daily rate % change year-on-year +2.44% -2.38% +5.00%
10th Percentile £315 £288 £313
90th Percentile £725 £706 £700
England median daily rate £475 £475 £475
Number of hourly rates quoted 116 148 254
Median hourly rate £31.50 £24.12 £22.38
Median hourly rate % change year-on-year +30.58% +7.77% -0.53%
10th Percentile £16.99 £12.44 £12.83
90th Percentile £57.50 £52.33 £47.00
Median hourly rate £26.00 £21.46 £20.25
% change year-on-year +21.17% +5.99% -3.60%

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 February 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 25 February 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 +92 22 £650 +49.43% 4
West London +42 3 £250 -41.18% 7
South London +54 2 - -
Clustering
England

For the 6 months to 25 February 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 54 (49.09%) High Availability
2 53 (48.18%) Performance Tuning
3 50 (45.45%) Agile Software Development
4 49 (44.55%) Linux
5 45 (40.91%) Java
5 45 (40.91%) Finance
6 44 (40.00%) Oracle
7 43 (39.09%) Jenkins
7 43 (39.09%) REST
8 42 (38.18%) Microservices
9 39 (35.45%) JavaScript
9 39 (35.45%) Spring
9 39 (35.45%) Continuous Integration
10 37 (33.64%) Scalability Testing
10 37 (33.64%) HTML
10 37 (33.64%) Enterprise Software
11 35 (31.82%) OO
12 34 (30.91%) Web Development
12 34 (30.91%) Relational Database
12 34 (30.91%) HTML5
13 32 (29.09%) Banking
14 28 (25.45%) Scrum
14 28 (25.45%) AWS
15 26 (23.64%) Java 8
16 25 (22.73%) JDBC
16 25 (22.73%) Hibernate
17 24 (21.82%) JSF
17 24 (21.82%) Ajax
17 24 (21.82%) jQuery
17 24 (21.82%) GWT

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 22 (20.00%) Apache
1 22 (20.00%) Red Hat Fuse
2 7 (6.36%) Oracle SOA Suite
2 7 (6.36%) WebLogic
2 7 (6.36%) WebLogic Portal
3 5 (4.55%) SharePoint
4 4 (3.64%) Confluence
5 2 (1.82%) Anypoint
5 2 (1.82%) IIS
5 2 (1.82%) MS Exchange
5 2 (1.82%) Mule
5 2 (1.82%) Mule ESB
5 2 (1.82%) Oracle Coherence
6 1 (0.91%) Apache Pig
6 1 (0.91%) Apache Spark
6 1 (0.91%) BizTalk Server
6 1 (0.91%) OpenStack
6 1 (0.91%) SAS
6 1 (0.91%) Skype for Business
Applications
1 2 (1.82%) MS Visio
1 2 (1.82%) Sketch
2 1 (0.91%) Microsoft Excel
2 1 (0.91%) Microsoft Office
2 1 (0.91%) Microsoft PowerPoint
Business Applications
1 7 (6.36%) Oracle Applications
1 7 (6.36%) Oracle EBS
2 1 (0.91%) Dynamics CRM
2 1 (0.91%) Remedy ITSM
Cloud Services
1 28 (25.45%) AWS
2 20 (18.18%) Azure
3 17 (15.45%) PaaS
3 17 (15.45%) SaaS
4 13 (11.82%) Amazon ECS
4 13 (11.82%) AWS CloudFormation
5 11 (10.00%) GitHub
6 9 (8.18%) Amazon ElastiCache
6 9 (8.18%) Amazon Kinesis
7 8 (7.27%) GCP
8 7 (6.36%) IaaS
9 6 (5.45%) Cloud Computing
10 5 (4.55%) Microsoft 365
11 2 (1.82%) Amazon EMR
12 1 (0.91%) Amazon S3
Communications & Networking
1 10 (9.09%) TCP/IP
2 7 (6.36%) DNS
2 7 (6.36%) Kerberos
3 3 (2.73%) Firewall
3 3 (2.73%) SAN
3 3 (2.73%) SSL
3 3 (2.73%) VSAN
4 2 (1.82%) DHCP
4 2 (1.82%) iSCSI
4 2 (1.82%) Network Security
4 2 (1.82%) SSH
5 1 (0.91%) HTTP
5 1 (0.91%) Intrusion Detection
5 1 (0.91%) LAN
5 1 (0.91%) MPLS
5 1 (0.91%) NAS
5 1 (0.91%) NetScaler
5 1 (0.91%) WAAS
5 1 (0.91%) WAN
5 1 (0.91%) Wireshark
Database & Business Intelligence
1 34 (30.91%) Relational Database
2 13 (11.82%) RDBMS
3 12 (10.91%) PostgreSQL
4 11 (10.00%) SQL Server
5 9 (8.18%) Oracle Database
6 8 (7.27%) Oracle BI EE
7 7 (6.36%) Oracle Database 10g
7 7 (6.36%) Oracle Database 11g
7 7 (6.36%) Oracle Database 12c
8 6 (5.45%) Redis
9 3 (2.73%) Data Warehouse
9 3 (2.73%) MongoDB
10 2 (1.82%) BigQuery
10 2 (1.82%) Hadoop
10 2 (1.82%) MySQL
10 2 (1.82%) Oracle Reports
11 1 (0.91%) Amazon Aurora
11 1 (0.91%) Apache Cassandra
11 1 (0.91%) Apache Hive
11 1 (0.91%) NoSQL
Development Applications
1 43 (39.09%) Jenkins
2 8 (7.27%) Git (software)
3 6 (5.45%) Gradle
4 4 (3.64%) JIRA
4 4 (3.64%) JUnit
4 4 (3.64%) Maven
5 3 (2.73%) Subversion
5 3 (2.73%) TeamCity
6 2 (1.82%) Axure RP
6 2 (1.82%) Balsamiq
6 2 (1.82%) Serena SBM
7 1 (0.91%) ER Studio
7 1 (0.91%) ERwin
7 1 (0.91%) Hudson
General
1 45 (40.91%) Finance
2 32 (29.09%) Banking
3 6 (5.45%) Public Sector
4 4 (3.64%) Retail
5 3 (2.73%) Investment Banking
6 2 (1.82%) Dutch Language
6 2 (1.82%) Multimedia
7 1 (0.91%) Financial Institution
7 1 (0.91%) International Banking
7 1 (0.91%) Pharmaceutical
7 1 (0.91%) Spanish Language
Job Titles
1 25 (22.73%) Architect
2 24 (21.82%) Developer
3 23 (20.91%) Java Developer
4 15 (13.64%) Solutions Architect
5 13 (11.82%) Java Architect
5 13 (11.82%) Java Solutions Architect
6 11 (10.00%) AWS Developer
7 8 (7.27%) Administrator
7 8 (7.27%) DBA
8 7 (6.36%) Oracle DBA
8 7 (6.36%) Senior Developer
9 6 (5.45%) Consultant
9 6 (5.45%) Senior Java Developer
9 6 (5.45%) Systems Administrator
10 5 (4.55%) Data Scientist
10 5 (4.55%) Oracle Applications DBA
11 4 (3.64%) Lead Architect
11 4 (3.64%) Technical Architect
12 3 (2.73%) Applications Developer
12 3 (2.73%) Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 43 (39.09%) REST
2 39 (35.45%) Spring
3 37 (33.64%) HTML
4 34 (30.91%) HTML5
5 25 (22.73%) Hibernate
5 25 (22.73%) JDBC
6 24 (21.82%) Ajax
6 24 (21.82%) AngularJS
6 24 (21.82%) Apache Camel
6 24 (21.82%) GWT
6 24 (21.82%) JMS
6 24 (21.82%) jQuery
6 24 (21.82%) JSF
7 22 (20.00%) OSGi
8 20 (18.18%) Middleware
9 17 (15.45%) Spring Boot
10 11 (10.00%) Kafka
10 11 (10.00%) Redux
11 9 (8.18%) Lambda Expressions
12 8 (7.27%) FIX Protocol
Miscellaneous
1 37 (33.64%) Enterprise Software
2 21 (19.09%) Analytical Skills
3 10 (9.09%) Replication
4 9 (8.18%) Data Centre
5 7 (6.36%) Data Structures
6 6 (5.45%) LPAR
7 4 (3.64%) Greenfield Project
8 3 (2.73%) Management Information System
9 2 (1.82%) Distributed Denial-of-Service
9 2 (1.82%) EMC VNX
9 2 (1.82%) Fixed Income
9 2 (1.82%) HACMP
9 2 (1.82%) User Experience
10 1 (0.91%) Cloud Native
10 1 (0.91%) Hybrid Cloud
10 1 (0.91%) Linux Command Line
10 1 (0.91%) NHS
10 1 (0.91%) Virtual Team
Operating Systems
1 49 (44.55%) Linux
2 23 (20.91%) Windows
3 19 (17.27%) Windows Server
4 18 (16.36%) Unix
5 11 (10.00%) Red Hat Enterprise Linux
5 11 (10.00%) Windows Server 2012
6 10 (9.09%) Windows Server 2016
7 9 (8.18%) AIX
7 9 (8.18%) Solaris
8 8 (7.27%) Windows Server 2008
9 6 (5.45%) Windows Server 2019
10 4 (3.64%) CentOS
11 3 (2.73%) Ubuntu
12 2 (1.82%) HPUX
12 2 (1.82%) SUSE
12 2 (1.82%) Windows 10
13 1 (0.91%) Mac OS X Server
13 1 (0.91%) Windows Server 2003
13 1 (0.91%) Windows XP
Processes & Methodologies
1 54 (49.09%) High Availability
2 53 (48.18%) Performance Tuning
3 50 (45.45%) Agile Software Development
4 42 (38.18%) Microservices
5 39 (35.45%) Continuous Integration
6 37 (33.64%) Scalability Testing
7 35 (31.82%) OO
8 34 (30.91%) Web Development
9 28 (25.45%) Scrum
10 24 (21.82%) Open Source
11 21 (19.09%) Extreme Programming
11 21 (19.09%) RUP
12 19 (17.27%) Problem-Solving
13 18 (16.36%) Continuous Improvement
14 16 (14.55%) Multithreaded Programming
14 16 (14.55%) Multithreading
15 15 (13.64%) Creative Thinking
16 14 (12.73%) Performance Monitoring
17 13 (11.82%) Computer Science
17 13 (11.82%) Mentoring
Programming Languages
1 45 (40.91%) Java
2 39 (35.45%) JavaScript
3 26 (23.64%) Java 8
4 15 (13.64%) SQL
5 13 (11.82%) PowerShell
5 13 (11.82%) Python
6 6 (5.45%) PL/SQL
7 4 (3.64%) Bash Shell
8 3 (2.73%) Perl
9 2 (1.82%) Go
10 1 (0.91%) C#
10 1 (0.91%) Kotlin
10 1 (0.91%) Scala
10 1 (0.91%) Shell Script
10 1 (0.91%) VB
10 1 (0.91%) VB.NET
10 1 (0.91%) VBA
10 1 (0.91%) VBScript
Qualifications
1 15 (13.64%) Security Cleared
2 14 (12.73%) Degree
3 13 (11.82%) SC Cleared
4 12 (10.91%) Computer Science Degree
4 12 (10.91%) Master's Degree
5 7 (6.36%) AWS Certification
6 3 (2.73%) VMware Certified Professional (VCP)
7 2 (1.82%) CCNA
7 2 (1.82%) CCNP
7 2 (1.82%) Cisco Certification
7 2 (1.82%) VCAP
8 1 (0.91%) CISA
8 1 (0.91%) CISM
8 1 (0.91%) CISSP
8 1 (0.91%) ISO 27001 Lead Auditor
8 1 (0.91%) ISO 27001 Lead Implementer
8 1 (0.91%) MCITP
8 1 (0.91%) MCSA
8 1 (0.91%) Microsoft Certification
8 1 (0.91%) VCP6
Quality Assurance & Compliance
1 7 (6.36%) QA
2 6 (5.45%) GDPR
2 6 (5.45%) MiFID
2 6 (5.45%) Sarbanes-Oxley
3 2 (1.82%) Actionable Recommendations
4 1 (0.91%) COBIT
4 1 (0.91%) GMP
4 1 (0.91%) IFRS
4 1 (0.91%) ISO 31000
4 1 (0.91%) ISO/IEC 27001
4 1 (0.91%) NIST
System Software
1 17 (15.45%) VMware Infrastructure
2 16 (14.55%) Active Directory
3 10 (9.09%) VMware ESXi
4 6 (5.45%) GPFS
4 6 (5.45%) PowerHA
5 5 (4.55%) Docker
5 5 (4.55%) vSphere
6 3 (2.73%) Hyper-V
6 3 (2.73%) NFS
6 3 (2.73%) Oracle RAC
6 3 (2.73%) vCloud
7 2 (1.82%) KVM
7 2 (1.82%) Veritas Cluster Server
7 2 (1.82%) Veritas File System
7 2 (1.82%) Virtual Machines
7 2 (1.82%) VMware NSX
8 1 (0.91%) DFS Replication
8 1 (0.91%) Terminal Server
8 1 (0.91%) XenApp
8 1 (0.91%) XenDesktop
Systems Management
1 12 (10.91%) Microsoft Clustering
2 7 (6.36%) Oracle RMAN
3 6 (5.45%) Kubernetes
4 5 (4.55%) Ansible
5 4 (3.64%) Netcool
5 4 (3.64%) Terraform
5 4 (3.64%) vRealize
6 3 (2.73%) Control-M
6 3 (2.73%) EMC NetWorker
6 3 (2.73%) Icinga
6 3 (2.73%) Opscode Chef
6 3 (2.73%) Puppet
6 3 (2.73%) QRadar
6 3 (2.73%) Tivoli
6 3 (2.73%) Tivoli Storage Manager
6 3 (2.73%) vCenter Server
6 3 (2.73%) vRealize Orchestrator
7 2 (1.82%) Failover Clustering
7 2 (1.82%) Microsoft Intune
7 2 (1.82%) Salt
Vendors
1 44 (40.00%) Oracle
2 23 (20.91%) VMware
3 15 (13.64%) IBM
4 12 (10.91%) Red Hat
5 10 (9.09%) Microsoft
6 9 (8.18%) Dell
7 7 (6.36%) HP
8 6 (5.45%) Citrix
8 6 (5.45%) Symantec
9 5 (4.55%) Splunk
10 4 (3.64%) BMC
10 4 (3.64%) Cisco
10 4 (3.64%) Dell Compellent
10 4 (3.64%) EMC
10 4 (3.64%) Infoblox
10 4 (3.64%) SaltStack
10 4 (3.64%) Veritas
11 3 (2.73%) CyberArk
11 3 (2.73%) EqualLogic
11 3 (2.73%) MuleSoft