Period
to 22 April 2021

The table below looks at the prevalence of the term Clustering in permanent job vacancies advertised in London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 22 April 2021 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
22 Apr 2021
Same period 2020 Same period 2019
Rank 439 564 446
Rank change year-on-year +125 -118 +45
Permanent jobs citing Clustering 138 114 353
As % of all permanent jobs advertised in London 0.44% 0.26% 0.58%
As % of the Miscellaneous category 1.00% 0.61% 1.39%
Number of salaries quoted 118 89 305
10th Percentile £45,000 £44,500 £42,500
25th Percentile £51,250 £51,250 £47,500
Median annual salary (50th Percentile) £70,000 £60,000 £60,000
Median % change year-on-year +16.67% - -
75th Percentile £90,000 £67,500 £73,000
90th Percentile £110,000 £77,500 £90,000
England median annual salary £51,000 £52,500 £52,500
% change year-on-year -2.86% - +5.00%

Clustering is in the Generic IT Skills category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for generic IT skills.

All Generic IT Skills
London
Permanent vacancies with a requirement for generic IT skills 13,756 18,815 25,316
As % of all permanent IT jobs advertised in London 43.65% 42.20% 41.82%
Number of salaries quoted 10,285 14,788 20,036
10th Percentile £42,500 £37,500 £35,000
25th Percentile £52,500 £50,000 £47,500
Median annual salary (50th Percentile) £70,000 £67,500 £65,000
Median % change year-on-year +3.70% +3.85% +8.33%
75th Percentile £90,000 £87,500 £82,500
90th Percentile £110,000 £113,750 £100,000
England median annual salary £57,210 £55,000 £52,500
% change year-on-year +4.02% +4.76% +5.00%

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
Salary Trend in London

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

Salary trend for Clustering in London

Clustering
Salary Histogram in London

Salary distribution for jobs citing Clustering in London over the 6 months to 22 April 2021.

Salary histogram for Clustering in London

Clustering
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clustering within the London region over the 6 months to 22 April 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +67 27 £76,250 +32.61% 4
East London +16 3 £40,000 -52.94%
West London +41 2 £45,000 -25.00% 3
Clustering
England

For the 6 months to 22 April 2021, IT 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 permanent job ads across the London region with a requirement for Clustering.

1 80 (57.97%) AWS
2 65 (47.10%) Linux
3 64 (46.38%) Azure
4 60 (43.48%) Windows
5 53 (38.41%) SQL
6 52 (37.68%) Performance Tuning
7 47 (34.06%) PostgreSQL
8 46 (33.33%) SQL Server
9 45 (32.61%) VMware
10 40 (28.99%) MySQL
11 37 (26.81%) Firewall
11 37 (26.81%) Oracle
11 37 (26.81%) Active Directory
11 37 (26.81%) Windows Server
12 36 (26.09%) High Availability
13 33 (23.91%) Microsoft
14 32 (23.19%) Agile Software Development
15 31 (22.46%) Google
15 31 (22.46%) Jenkins
16 28 (20.29%) Relational Database
16 28 (20.29%) VMware Infrastructure
16 28 (20.29%) Finance
17 27 (19.57%) DNS
17 27 (19.57%) RDBMS
17 27 (19.57%) Java
17 27 (19.57%) PowerShell
17 27 (19.57%) JIRA
17 27 (19.57%) GCP
18 26 (18.84%) Cisco
19 25 (18.12%) Migration

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 10 (7.25%) Apache
1 10 (7.25%) IIS
2 9 (6.52%) MS Exchange
2 9 (6.52%) SharePoint
3 8 (5.80%) JBoss
4 3 (2.17%) Confluence
4 3 (2.17%) Exchange Server 2010
5 2 (1.45%) Blackberry Enterprise Server
5 2 (1.45%) nginx
5 2 (1.45%) Skype for Business
6 1 (0.72%) OpenStack
6 1 (0.72%) Oracle Coherence
6 1 (0.72%) Red Hat Fuse
Applications
1 4 (2.90%) Microsoft Office
Cloud Services
1 80 (57.97%) AWS
2 64 (46.38%) Azure
3 27 (19.57%) GCP
4 18 (13.04%) Power Platform
5 16 (11.59%) Azure Active Directory
5 16 (11.59%) Microsoft 365
6 15 (10.87%) PaaS
7 12 (8.70%) SaaS
7 12 (8.70%) Trello
8 7 (5.07%) Google Data Studio
8 7 (5.07%) IaaS
9 6 (4.35%) Amazon ECS
9 6 (4.35%) Amazon ElastiCache
9 6 (4.35%) Amazon Kinesis
9 6 (4.35%) AWS CloudFormation
10 2 (1.45%) Amazon EC2
10 2 (1.45%) Amazon S3
11 1 (0.72%) Akamai
11 1 (0.72%) OpenShift
11 1 (0.72%) Virtual Private Cloud
Communications & Networking
1 37 (26.81%) Firewall
2 27 (19.57%) DNS
3 23 (16.67%) DHCP
4 11 (7.97%) LAN
4 11 (7.97%) WAN
5 10 (7.25%) VPN
6 9 (6.52%) iSCSI
7 8 (5.80%) TCP/IP
8 7 (5.07%) SAN
8 7 (5.07%) VLAN
8 7 (5.07%) VoIP
9 6 (4.35%) Fibre Channel
10 5 (3.62%) Internet
10 5 (3.62%) Wi-Fi
10 5 (3.62%) Wireless
11 4 (2.90%) NAS
11 4 (2.90%) Network Security
11 4 (2.90%) SD-WAN
12 3 (2.17%) IPsec
12 3 (2.17%) Skype
Database & Business Intelligence
1 47 (34.06%) PostgreSQL
2 46 (33.33%) SQL Server
3 40 (28.99%) MySQL
4 28 (20.29%) Relational Database
5 27 (19.57%) RDBMS
6 19 (13.77%) MariaDB
7 18 (13.04%) Power BI
8 17 (12.32%) Oracle Database
9 15 (10.87%) Azure SQL Database
9 15 (10.87%) SQL Server 2014
9 15 (10.87%) SQL Server 2016
10 14 (10.14%) Oracle Database 12c
10 14 (10.14%) Oracle Exadata
11 13 (9.42%) Data Warehouse
12 11 (7.97%) Looker
12 11 (7.97%) MongoDB
12 11 (7.97%) Snowflake Schema
13 9 (6.52%) SQL Server Integration Services
14 8 (5.80%) SQL Server Reporting Services
15 7 (5.07%) SQL Server Analysis Services
Development Applications
1 31 (22.46%) Jenkins
2 27 (19.57%) JIRA
3 7 (5.07%) Octopus Deploy
4 6 (4.35%) Git (software)
5 4 (2.90%) Gradle
6 2 (1.45%) GitLab
7 1 (0.72%) GoCD
7 1 (0.72%) JUnit
7 1 (0.72%) Maven
7 1 (0.72%) Sonatype Nexus
7 1 (0.72%) TeamCity
General
1 28 (20.29%) Finance
2 16 (11.59%) Banking
3 7 (5.07%) Investment Banking
4 5 (3.62%) Law
5 3 (2.17%) Legal
5 3 (2.17%) Public Sector
6 2 (1.45%) Telecoms
7 1 (0.72%) Front Office
7 1 (0.72%) Retail
Job Titles
1 39 (28.26%) DBA
2 26 (18.84%) MySQL DBA
3 25 (18.12%) Administrator
4 23 (16.67%) Developer
5 17 (12.32%) Architect
5 17 (12.32%) SQL Server DBA
6 12 (8.70%) Java Developer
7 11 (7.97%) AWS Developer
8 9 (6.52%) Oracle DBA
8 9 (6.52%) SQL DBA
8 9 (6.52%) Support Engineer
9 8 (5.80%) Infrastructure Engineer
9 8 (5.80%) Oracle SQL Server DBA
9 8 (5.80%) PostgreSQL DBA
9 8 (5.80%) Senior DBA
10 7 (5.07%) Data Warehouse Developer
10 7 (5.07%) Lead Developer
11 6 (4.35%) Infrastructure Architect
11 6 (4.35%) Team Leader
11 6 (4.35%) Technical Architect
Libraries, Frameworks & Software Standards
1 12 (8.70%) REST
2 9 (6.52%) Spring
3 8 (5.80%) Kafka
3 8 (5.80%) LAMP
3 8 (5.80%) Spring Boot
4 6 (4.35%) Lambda Expressions
5 5 (3.62%) FIX Protocol
5 5 (3.62%) Web Services
6 4 (2.90%) .NET
6 4 (2.90%) POSIX
7 3 (2.17%) HTML
7 3 (2.17%) HTML5
7 3 (2.17%) WSH
8 2 (1.45%) 802.1X
8 2 (1.45%) LAPP Stack
8 2 (1.45%) LEMP Stack
8 2 (1.45%) Redux
8 2 (1.45%) SOAP
9 1 (0.72%) ODBC
9 1 (0.72%) XML
Miscellaneous
1 25 (18.12%) Replication
2 13 (9.42%) Enterprise Software
3 9 (6.52%) Data Centre
3 9 (6.52%) Management Information System
4 8 (5.80%) Hybrid Cloud
5 7 (5.07%) Video Conferencing
6 5 (3.62%) Analytical Skills
6 5 (3.62%) Fixed Income
6 5 (3.62%) Social Media
6 5 (3.62%) Virtual Team
7 4 (2.90%) Linux Command Line
8 3 (2.17%) Driving Licence
8 3 (2.17%) Enterprise Storage
8 3 (2.17%) Public Cloud
9 2 (1.45%) Blackberry
10 1 (0.72%) Client/Server
10 1 (0.72%) Data Structures
10 1 (0.72%) Distributed Denial-of-Service
10 1 (0.72%) PKI
Operating Systems
1 65 (47.10%) Linux
2 60 (43.48%) Windows
3 37 (26.81%) Windows Server
4 13 (9.42%) CentOS
5 12 (8.70%) Mac OS
6 10 (7.25%) Windows 10
7 9 (6.52%) Ubuntu
8 8 (5.80%) Solaris
8 8 (5.80%) Unix
8 8 (5.80%) Windows Server 2008
9 7 (5.07%) Windows 7
9 7 (5.07%) Windows Server 2016
10 6 (4.35%) Red Hat Enterprise Linux
11 4 (2.90%) Windows Server 2012
12 3 (2.17%) Windows Server 2019
13 2 (1.45%) Apple iOS
Processes & Methodologies
1 52 (37.68%) Performance Tuning
2 36 (26.09%) High Availability
3 32 (23.19%) Agile Software Development
4 25 (18.12%) Migration
5 23 (16.67%) DevOps
6 20 (14.49%) Business Intelligence
7 19 (13.77%) ETL
8 18 (13.04%) Disaster Recovery
8 18 (13.04%) Microservices
9 17 (12.32%) Continuous Integration
10 16 (11.59%) Fintech
11 14 (10.14%) Load Balancing
12 13 (9.42%) ITIL
12 13 (9.42%) OO
12 13 (9.42%) Scalability Testing
13 12 (8.70%) Data Architecture
13 12 (8.70%) Data Science
14 11 (7.97%) Actionable Insight
14 11 (7.97%) Data Ingestion
14 11 (7.97%) Sprint Planning
Programming Languages
1 53 (38.41%) SQL
2 27 (19.57%) Java
2 27 (19.57%) PowerShell
3 23 (16.67%) Perl
3 23 (16.67%) Shell Script
4 21 (15.22%) Bash Shell
5 16 (11.59%) T-SQL
6 15 (10.87%) Python
7 12 (8.70%) C
8 9 (6.52%) PL/SQL
9 4 (2.90%) Kotlin
9 4 (2.90%) Scala
10 3 (2.17%) JavaScript
10 3 (2.17%) VBScript
11 2 (1.45%) C#
11 2 (1.45%) Java 8
Qualifications
1 18 (13.04%) SC Cleared
1 18 (13.04%) Security Cleared
2 10 (7.25%) ITIL Certification
3 5 (3.62%) CCNA
3 5 (3.62%) Cisco Certification
3 5 (3.62%) Degree
4 3 (2.17%) AWS Certification
4 3 (2.17%) CCNP
5 2 (1.45%) MCSA
5 2 (1.45%) Microsoft Certification
6 1 (0.72%) Computer Science Degree
6 1 (0.72%) ITIL Foundation Certificate
6 1 (0.72%) Master's Degree
6 1 (0.72%) MCITP
6 1 (0.72%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 7 (5.07%) GDPR
2 5 (3.62%) QA
3 4 (2.90%) Cyber Essentials
3 4 (2.90%) Cyber Essentials PLUS
3 4 (2.90%) ISO/IEC 27001
4 3 (2.17%) SLA
5 1 (0.72%) PCI DSS
System Software
1 37 (26.81%) Active Directory
2 28 (20.29%) VMware Infrastructure
3 23 (16.67%) Hyper-V
4 15 (10.87%) Oracle RAC
5 13 (9.42%) Docker
6 6 (4.35%) vSphere
7 3 (2.17%) VMware ESXi
8 2 (1.45%) DFS Replication
8 2 (1.45%) iptables
8 2 (1.45%) Veritas Cluster Server
9 1 (0.72%) KVM
9 1 (0.72%) NFS
9 1 (0.72%) Xen
Systems Management
1 23 (16.67%) Failover Clustering
2 18 (13.04%) SCCM
3 14 (10.14%) Oracle RMAN
4 13 (9.42%) Ansible
5 12 (8.70%) Kubernetes
6 10 (7.25%) Terraform
7 7 (5.07%) Grafana
7 7 (5.07%) Microsoft Intune
8 6 (4.35%) NetBackup
8 6 (4.35%) Red Hat Satellite
9 5 (3.62%) Microsoft Clustering
9 5 (3.62%) Microsoft Data Protection Manager
9 5 (3.62%) SCDPM
9 5 (3.62%) vCenter Server
10 3 (2.17%) Backup Exec
10 3 (2.17%) Jamf Pro
10 3 (2.17%) Puppet
10 3 (2.17%) SCOM
11 2 (1.45%) McAfee ePO
11 2 (1.45%) WSUS
Vendors
1 45 (32.61%) VMware
2 37 (26.81%) Oracle
3 33 (23.91%) Microsoft
4 31 (22.46%) Google
5 26 (18.84%) Cisco
6 13 (9.42%) Red Hat
7 11 (7.97%) Brocade
7 11 (7.97%) Citrix
8 8 (5.80%) Sybase
9 7 (5.07%) HP
10 6 (4.35%) NetApp
10 6 (4.35%) Solarflare
10 6 (4.35%) Veritas
11 5 (3.62%) CommVault
11 5 (3.62%) Meraki
11 5 (3.62%) Riverbed
12 4 (2.90%) 3PAR
12 4 (2.90%) Aruba
12 4 (2.90%) Barracuda Networks
12 4 (2.90%) SonicWALL