Period
to 14 December 2019

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 14 December 2019 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
14 Dec 2019
Same period 2018 Same period 2017
Rank 522 436 407
Rank change year-on-year -86 -29 +8
Permanent jobs citing Clustering 212 399 554
As % of all permanent IT jobs advertised in London 0.40% 0.60% 0.75%
As % of the Miscellaneous category 0.95% 1.42% 1.67%
Number of salaries quoted 168 352 477
London median annual salary £60,000 £60,000 £60,000
10th Percentile £39,756 £42,575 £42,500
90th Percentile £82,500 £89,875 £87,500
England median annual salary £52,500 £52,500 £50,000
% change year-on-year - +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 22,202 28,095 33,267
As % of all permanent IT jobs advertised in London 41.72% 42.30% 44.91%
Number of salaries quoted 17,309 21,897 23,908
London median annual salary £65,000 £65,000 £60,000
Median salary % change year-on-year - +8.33% -
10th Percentile £36,250 £35,750 £35,000
90th Percentile £110,000 £97,500 £93,750
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% -

Clustering
Job Vacancy Trend in London

Job postings citing Clustering as a percentage of all IT jobs advertised in London.

Job vacancy trend for Clustering in London

Clustering
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Clustering in London.

Salary trend for Clustering in London

Clustering
Salary Histogram in London

The salary distribution of IT jobs citing Clustering in London over the 6 months to 14 December 2019.

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 14 December 2019. 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 -30 32 £60,000 +14.29% 14
West London +29 28 £40,250 -26.82% 4
East London +17 15 £70,000 +27.27% 3
Clustering
England

For the 6 months to 14 December 2019, 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.

1 133 (62.74%) Windows
2 86 (40.57%) SQL
3 85 (40.09%) Active Directory
4 81 (38.21%) SQL Server
5 76 (35.85%) Microsoft
6 74 (34.91%) Linux
6 74 (34.91%) Replication
6 74 (34.91%) Windows Server
7 69 (32.55%) VMware
8 67 (31.60%) Azure
9 53 (25.00%) AWS
9 53 (25.00%) PowerShell
10 51 (24.06%) TCP/IP
10 51 (24.06%) Cisco
11 49 (23.11%) Red Hat
12 47 (22.17%) High Availability
13 46 (21.70%) Disaster Recovery
13 46 (21.70%) SAN
14 45 (21.23%) HTTP
14 45 (21.23%) Puppet
14 45 (21.23%) Infrastructure Engineering
15 44 (20.75%) VMware Infrastructure
15 44 (20.75%) MS Exchange
16 42 (19.81%) Bash Shell
17 41 (19.34%) Performance Tuning
17 41 (19.34%) MySQL
18 40 (18.87%) Office 365
19 39 (18.40%) Hyper-V
20 37 (17.45%) ITIL
21 35 (16.51%) SNMP

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 44 (20.75%) MS Exchange
2 28 (13.21%) IIS
3 23 (10.85%) SharePoint
4 20 (9.43%) Anypoint
5 11 (5.19%) Tomcat
6 10 (4.72%) Apache
7 9 (4.25%) Exchange Server 2010
8 4 (1.89%) Exchange Server 2007
9 3 (1.42%) Apache Spark
9 3 (1.42%) nginx
9 3 (1.42%) WordPress
10 2 (0.94%) Confluence
11 1 (0.47%) Adobe Experience Manager
11 1 (0.47%) Exchange Server 2013
11 1 (0.47%) Oracle SOA Suite
11 1 (0.47%) SharePoint 2010
11 1 (0.47%) SharePoint 2013
Applications
1 2 (0.94%) Microsoft Excel
1 2 (0.94%) Microsoft Office
Business Applications
1 1 (0.47%) SAP Business One
Cloud Services
1 67 (31.60%) Azure
2 53 (25.00%) AWS
3 40 (18.87%) Office 365
4 13 (6.13%) Azure Active Directory
4 13 (6.13%) Power Platform
5 9 (4.25%) Virtual Private Cloud
6 8 (3.77%) Serverless
7 7 (3.30%) IaaS
8 6 (2.83%) Amazon SQS
8 6 (2.83%) AWS Lambda
9 5 (2.36%) GCP
9 5 (2.36%) SaaS
10 3 (1.42%) Amazon EC2
10 3 (1.42%) Amazon ELB
10 3 (1.42%) Amazon S3
10 3 (1.42%) PaaS
11 2 (0.94%) Cloud Computing
11 2 (0.94%) Google Analytics
11 2 (0.94%) Google Tag Manager
11 2 (0.94%) OneDrive
Communications & Networking
1 51 (24.06%) TCP/IP
2 46 (21.70%) SAN
3 45 (21.23%) HTTP
4 35 (16.51%) SNMP
5 33 (15.57%) LAN
5 33 (15.57%) SMTP
6 31 (14.62%) Multicast
7 29 (13.68%) WAN
7 29 (13.68%) Wireless
8 28 (13.21%) WLAN
9 27 (12.74%) IGMP
9 27 (12.74%) Structured Cabling
10 26 (12.26%) Firewall
11 23 (10.85%) DNS
12 22 (10.38%) DHCP
12 22 (10.38%) NAS
13 21 (9.91%) BGP
14 18 (8.49%) BGP-4
14 18 (8.49%) OSPF
15 13 (6.13%) Internet
Database & Business Intelligence
1 81 (38.21%) SQL Server
2 41 (19.34%) MySQL
3 26 (12.26%) SQL Server Integration Services
3 26 (12.26%) SQL Server Reporting Services
4 24 (11.32%) Relational Database
5 22 (10.38%) RDBMS
6 19 (8.96%) SQL Server 2012
6 19 (8.96%) SQL Server 2014
7 18 (8.49%) SQL Server 2008
7 18 (8.49%) SQL Server Analysis Services
8 16 (7.55%) PostgreSQL
9 15 (7.08%) Azure SQL Database
10 13 (6.13%) Power BI
11 12 (5.66%) Data Lake
12 11 (5.19%) Oracle Database
13 9 (4.25%) Amazon RDS
14 8 (3.77%) Data Warehouse
14 8 (3.77%) MongoDB
14 8 (3.77%) Oracle Exadata
15 7 (3.30%) NoSQL
Development Applications
1 32 (15.09%) Git (software)
2 30 (14.15%) Subversion
3 8 (3.77%) Hudson
3 8 (3.77%) Maven
3 8 (3.77%) Postman
4 7 (3.30%) Jenkins
5 4 (1.89%) JIRA
6 2 (0.94%) Octopus Deploy
6 2 (0.94%) TeamCity
General
1 35 (16.51%) Finance
2 13 (6.13%) Banking
3 12 (5.66%) Retail
4 3 (1.42%) Automotive
4 3 (1.42%) Telecoms
5 2 (0.94%) Legal
6 1 (0.47%) Games
6 1 (0.47%) Investment Banking
6 1 (0.47%) Law
6 1 (0.47%) Marketing
6 1 (0.47%) Public Sector
Job Titles
1 52 (24.53%) DBA
2 48 (22.64%) Administrator
3 41 (19.34%) SQL DBA
4 37 (17.45%) Infrastructure Engineer
5 34 (16.04%) Systems Administrator
6 27 (12.74%) Network Administrator
7 24 (11.32%) Architect
8 22 (10.38%) Analyst
9 20 (9.43%) SQL Server DBA
10 16 (7.55%) Senior DBA
10 16 (7.55%) Senior SQL DBA
11 13 (6.13%) Consultant
11 13 (6.13%) DevOps Engineer
12 11 (5.19%) Azure Engineer
13 10 (4.72%) Azure Architect
13 10 (4.72%) Oracle DBA
14 8 (3.77%) MuleSoft Architect
15 7 (3.30%) Azure Administrator
15 7 (3.30%) DevOps Architect
15 7 (3.30%) IT Engineer
Libraries, Frameworks & Software Standards
1 31 (14.62%) LAMP
2 30 (14.15%) LDAP
3 18 (8.49%) 802.1X
4 9 (4.25%) .NET
5 8 (3.77%) Spring
6 7 (3.30%) Flash
6 7 (3.30%) Web Services
7 3 (1.42%) LEMP Stack
8 1 (0.47%) .NET Core
8 1 (0.47%) CSS
8 1 (0.47%) Entity Framework
8 1 (0.47%) Flask
8 1 (0.47%) HTML5
8 1 (0.47%) LESS
8 1 (0.47%) Node.js
8 1 (0.47%) Pandas
8 1 (0.47%) RESTful
8 1 (0.47%) scikit-learn
8 1 (0.47%) SOAP
8 1 (0.47%) Swagger
Miscellaneous
1 74 (34.91%) Replication
2 27 (12.74%) Data Centre
2 27 (12.74%) IPTV
2 27 (12.74%) MPEG
2 27 (12.74%) Video\Live Streaming
3 8 (3.77%) Analytical Skills
4 6 (2.83%) Reinsurance
5 5 (2.36%) Management Information System
6 4 (1.89%) Hedge funds
6 4 (1.89%) Linux Command Line
6 4 (1.89%) Self-Motivation
7 3 (1.42%) Algorithms
7 3 (1.42%) Blackberry
7 3 (1.42%) Enterprise Storage
7 3 (1.42%) PKI
8 2 (0.94%) Cloud Native
8 2 (0.94%) Public Cloud
9 1 (0.47%) Driving Licence
9 1 (0.47%) EMC VNX
9 1 (0.47%) Private Cloud
Operating Systems
1 133 (62.74%) Windows
2 74 (34.91%) Linux
2 74 (34.91%) Windows Server
3 28 (13.21%) CentOS
3 28 (13.21%) Ubuntu
4 22 (10.38%) Windows Server 2012
5 18 (8.49%) Windows Server 2008
6 17 (8.02%) Red Hat Enterprise Linux
7 12 (5.66%) Windows 10
7 12 (5.66%) Windows 7
8 11 (5.19%) Unix
9 10 (4.72%) Solaris
10 7 (3.30%) Oracle Linux
10 7 (3.30%) Windows 8
11 3 (1.42%) VyOS
12 1 (0.47%) Android
12 1 (0.47%) Mac OS X
12 1 (0.47%) SUSE
12 1 (0.47%) VMS
12 1 (0.47%) Windows Server 2003
Processes & Methodologies
1 47 (22.17%) High Availability
2 46 (21.70%) Disaster Recovery
3 45 (21.23%) Infrastructure Engineering
4 41 (19.34%) Performance Tuning
5 37 (17.45%) ITIL
6 31 (14.62%) Analytics
7 29 (13.68%) Migration
8 28 (13.21%) Agile Software Development
9 27 (12.74%) DevOps
10 24 (11.32%) Continuous Integration
10 24 (11.32%) Load Balancing
11 22 (10.38%) Configuration Management
12 19 (8.96%) Problem-Solving
13 18 (8.49%) Data Analytics
14 16 (7.55%) Database Mirroring
14 16 (7.55%) Time Management
15 14 (6.60%) Capacity Management
15 14 (6.60%) Project Planning
16 12 (5.66%) Data Modelling
16 12 (5.66%) Microservices
Programming Languages
1 86 (40.57%) SQL
2 53 (25.00%) PowerShell
3 42 (19.81%) Bash Shell
4 29 (13.68%) T-SQL
5 18 (8.49%) Python
6 16 (7.55%) Java
7 10 (4.72%) PHP
8 7 (3.30%) C#
9 3 (1.42%) PL/SQL
9 3 (1.42%) R
9 3 (1.42%) Shell Script
9 3 (1.42%) VB
10 2 (0.94%) JavaScript
10 2 (0.94%) VBScript
11 1 (0.47%) C
11 1 (0.47%) Korn
11 1 (0.47%) MATLAB
Qualifications
1 35 (16.51%) Degree
2 23 (10.85%) Microsoft Certification
3 17 (8.02%) MCSE
4 12 (5.66%) Cisco Certification
5 10 (4.72%) CCDP
5 10 (4.72%) CCNP
6 9 (4.25%) MCSA
6 9 (4.25%) VMware Certified Professional (VCP)
7 6 (2.83%) Computer Science Degree
7 6 (2.83%) VCP5
8 3 (1.42%) MCITP
9 2 (0.94%) CCNA
9 2 (0.94%) ITIL Certification
9 2 (0.94%) Master's Degree
9 2 (0.94%) RHCSA
10 1 (0.47%) MCP
10 1 (0.47%) PhD
10 1 (0.47%) RHCE
10 1 (0.47%) SC Cleared
10 1 (0.47%) Security Cleared
Quality Assurance & Compliance
1 9 (4.25%) SLA
2 6 (2.83%) Data Quality
3 3 (1.42%) ISO/IEC 27001
4 1 (0.47%) QA
System Software
1 85 (40.09%) Active Directory
2 44 (20.75%) VMware Infrastructure
3 39 (18.40%) Hyper-V
4 27 (12.74%) XenApp
5 17 (8.02%) Virtual Machines
6 14 (6.60%) vSphere
7 12 (5.66%) VMware ESXi
8 11 (5.19%) Docker
9 10 (4.72%) DRBD
9 10 (4.72%) GlusterFS
10 8 (3.77%) XenDesktop
11 7 (3.30%) Firmware
11 7 (3.30%) Oracle RAC
12 4 (1.89%) Veritas Cluster Server
13 3 (1.42%) Postfix
14 1 (0.47%) Terminal Server
14 1 (0.47%) Terminal Services
Systems Management
1 45 (21.23%) Puppet
2 28 (13.21%) Nagios
2 28 (13.21%) ZABBIX
3 25 (11.79%) SCCM
4 23 (10.85%) Ansible
4 23 (10.85%) Opscode Chef
5 19 (8.96%) SCVMM
6 17 (8.02%) Microsoft Clustering
7 16 (7.55%) SCOM
8 12 (5.66%) XenMobile
9 11 (5.19%) Failover Clustering
10 10 (4.72%) Galera Cluster
11 9 (4.25%) Terraform
12 8 (3.77%) Prometheus
13 7 (3.30%) Data Guard
14 6 (2.83%) Consul
14 6 (2.83%) WSUS
15 3 (1.42%) Kubernetes
15 3 (1.42%) Oracle Enterprise Manager
15 3 (1.42%) Perfmon
Vendors
1 76 (35.85%) Microsoft
2 69 (32.55%) VMware
3 51 (24.06%) Cisco
4 49 (23.11%) Red Hat
5 29 (13.68%) Citrix
6 20 (9.43%) MuleSoft
7 18 (8.49%) Oracle
8 12 (5.66%) NetApp
9 11 (5.19%) EMC
9 11 (5.19%) Veeam
10 10 (4.72%) Extreme Networks
10 10 (4.72%) Percona
11 9 (4.25%) Veritas
12 7 (3.30%) Google
12 7 (3.30%) HP
12 7 (3.30%) SaltStack
12 7 (3.30%) Symantec
13 6 (2.83%) DataCore
13 6 (2.83%) Tableau
13 6 (2.83%) WatchGuard