Period
to 22 September 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 22 September 2019 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
22 Sep 2019
Same period 2018 Same period 2017
Rank 489 475 388
Rank change year-on-year -14 -87 +4
Permanent jobs citing Clustering 245 389 609
As % of all permanent IT jobs advertised in London 0.44% 0.57% 0.81%
As % of the Miscellaneous category 1.07% 1.33% 1.79%
Number of salaries quoted 198 345 506
London median annual salary £67,500 £60,000 £57,500
Median salary % change year-on-year +12.50% +4.35% +4.55%
10th Percentile £43,750 £42,500 £40,000
90th Percentile £87,500 £86,250 £85,000
England median annual salary £53,750 £53,250 £50,000
% change year-on-year +0.94% +6.50% -

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 22,800 29,321 34,058
As % of all permanent IT jobs advertised in London 41.38% 42.86% 45.47%
Number of salaries quoted 17,730 22,494 23,887
London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +4.35%
10th Percentile £35,000 £35,000 £35,000
90th Percentile £102,500 £97,500 £95,000
England median annual salary £53,500 £52,500 £50,000
% change year-on-year +1.90% +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 22 September 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 22 September 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 +10 49 £55,000 -8.33% 11
East London +32 17 £85,000 +21.43% 4
West London +20 16 £40,000 -27.27% 3
South London -28 2 £55,000 -4.35%
Clustering
England

For the 6 months to 22 September 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.

1 147 (60.00%) Windows
2 124 (50.61%) SQL
3 101 (41.22%) Windows Server
4 100 (40.82%) SQL Server
5 96 (39.18%) Replication
6 95 (38.78%) VMware
6 95 (38.78%) Active Directory
7 90 (36.73%) Microsoft
8 88 (35.92%) PowerShell
9 87 (35.51%) Azure
10 83 (33.88%) Linux
11 68 (27.76%) High Availability
12 66 (26.94%) AWS
13 60 (24.49%) Finance
13 60 (24.49%) Infrastructure Engineering
14 58 (23.67%) Cisco
15 57 (23.27%) Migration
16 56 (22.86%) SQL Server Reporting Services
16 56 (22.86%) SQL Server Integration Services
17 55 (22.45%) Office 365
18 54 (22.04%) VMware Infrastructure
18 54 (22.04%) SCCM
18 54 (22.04%) Python
19 53 (21.63%) Disaster Recovery
20 51 (20.82%) SAN
20 51 (20.82%) Red Hat
21 50 (20.41%) T-SQL
22 49 (20.00%) Ansible
23 46 (18.78%) TCP/IP
24 45 (18.37%) Hyper-V

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 37 (15.10%) MS Exchange
2 28 (11.43%) SharePoint
3 17 (6.94%) IIS
4 10 (4.08%) Tomcat
5 9 (3.67%) Apache
6 8 (3.27%) Exchange Server 2010
7 7 (2.86%) Exchange Server 2007
8 6 (2.45%) Anypoint
8 6 (2.45%) BizTalk Server
9 4 (1.63%) Exchange Server 2013
10 3 (1.22%) Apache Spark
11 1 (0.41%) Adobe Experience Manager
11 1 (0.41%) Confluence
11 1 (0.41%) nginx
11 1 (0.41%) Oracle SOA Suite
11 1 (0.41%) WordPress
Applications
1 2 (0.82%) Microsoft Excel
1 2 (0.82%) Microsoft Office
1 2 (0.82%) MS Visio
2 1 (0.41%) Microsoft PowerPoint
Cloud Services
1 87 (35.51%) Azure
2 66 (26.94%) AWS
3 55 (22.45%) Office 365
4 13 (5.31%) Azure Active Directory
4 13 (5.31%) IaaS
5 11 (4.49%) PaaS
6 9 (3.67%) SaaS
7 8 (3.27%) Azure Data Factory
8 6 (2.45%) Cortana Intelligence Suite
8 6 (2.45%) GCP
8 6 (2.45%) npm
8 6 (2.45%) NuGet
9 5 (2.04%) Power Platform
10 3 (1.22%) Cloud Computing
11 2 (0.82%) Azure Stack
11 2 (0.82%) GitHub
11 2 (0.82%) Google Analytics
11 2 (0.82%) Google Tag Manager
12 1 (0.41%) Amazon ELB
12 1 (0.41%) Virtual Private Cloud
Communications & Networking
1 51 (20.82%) SAN
2 46 (18.78%) TCP/IP
3 42 (17.14%) DNS
4 38 (15.51%) DHCP
5 35 (14.29%) Firewall
5 35 (14.29%) NAS
6 30 (12.24%) WAN
7 29 (11.84%) LAN
8 26 (10.61%) HTTP
9 22 (8.98%) Wireless
10 18 (7.35%) SNMP
11 17 (6.94%) IGMP
11 17 (6.94%) MPLS
11 17 (6.94%) Multicast
11 17 (6.94%) SMTP
11 17 (6.94%) Structured Cabling
11 17 (6.94%) WLAN
12 15 (6.12%) BGP
13 14 (5.71%) BGP-4
13 14 (5.71%) VPN
Database & Business Intelligence
1 100 (40.82%) SQL Server
2 56 (22.86%) SQL Server Integration Services
2 56 (22.86%) SQL Server Reporting Services
3 45 (18.37%) SQL Server 2012
4 42 (17.14%) SQL Server Analysis Services
5 36 (14.69%) MySQL
5 36 (14.69%) Relational Database
6 33 (13.47%) PostgreSQL
7 32 (13.06%) RDBMS
8 30 (12.24%) MongoDB
9 25 (10.20%) SQL Server 2008
10 21 (8.57%) Data Warehouse
11 17 (6.94%) SQL Server 2014
12 16 (6.53%) InfluxDB
12 16 (6.53%) OpenTSDB
13 12 (4.90%) Azure SQL Database
14 11 (4.49%) NoSQL
15 10 (4.08%) Data Lake
15 10 (4.08%) DB2
16 9 (3.67%) SQL Server 2016
Development Applications
1 25 (10.20%) Git (software)
1 25 (10.20%) Jenkins
1 25 (10.20%) Subversion
2 10 (4.08%) Octopus Deploy
2 10 (4.08%) TeamCity
3 6 (2.45%) Team Foundation Server
4 5 (2.04%) JIRA
4 5 (2.04%) SQL Server Management Studio (SSMS)
5 4 (1.63%) MSI
General
1 60 (24.49%) Finance
2 15 (6.12%) Banking
3 10 (4.08%) Retail
4 4 (1.63%) Automotive
4 4 (1.63%) Telecoms
5 2 (0.82%) Law
5 2 (0.82%) Legal
6 1 (0.41%) Advertising
6 1 (0.41%) Billing
6 1 (0.41%) Games
6 1 (0.41%) Marketing
Job Titles
1 70 (28.57%) DBA
2 62 (25.31%) SQL DBA
3 50 (20.41%) Administrator
3 50 (20.41%) Infrastructure Engineer
4 34 (13.88%) SQL Server DBA
5 30 (12.24%) Senior DBA
6 29 (11.84%) Senior SQL DBA
6 29 (11.84%) Systems Administrator
7 26 (10.61%) Architect
8 24 (9.80%) Senior SQL Server DBA
9 21 (8.57%) Network Administrator
10 17 (6.94%) Analyst
11 13 (5.31%) Linux Engineer
12 12 (4.90%) Applications Support
12 12 (4.90%) Applications Support Analyst
12 12 (4.90%) Cloud Architect
12 12 (4.90%) Linux Infrastructure Engineer
12 12 (4.90%) Support Analyst
12 12 (4.90%) Unix Engineer
12 12 (4.90%) Unix Linux Engineer
Libraries, Frameworks & Software Standards
1 18 (7.35%) LAMP
1 18 (7.35%) LDAP
2 14 (5.71%) .NET
2 14 (5.71%) 802.1X
3 8 (3.27%) Spring
3 8 (3.27%) Web Services
4 7 (2.86%) RESTful
5 6 (2.45%) AngularJS
5 6 (2.45%) Aurelia
5 6 (2.45%) JSON
5 6 (2.45%) XML
6 5 (2.04%) Flash
7 2 (0.82%) Flask
7 2 (0.82%) Pandas
7 2 (0.82%) scikit-learn
8 1 (0.41%) Entity Framework
8 1 (0.41%) HTML5
8 1 (0.41%) LEMP Stack
8 1 (0.41%) Swagger
8 1 (0.41%) TensorFlow
Miscellaneous
1 96 (39.18%) Replication
2 29 (11.84%) Data Centre
3 20 (8.16%) Hedge funds
3 20 (8.16%) Self-Motivation
4 17 (6.94%) IPTV
4 17 (6.94%) MPEG
4 17 (6.94%) Video\Live Streaming
5 13 (5.31%) Management Information System
6 9 (3.67%) Public Cloud
7 8 (3.27%) Fat Client
7 8 (3.27%) Thin Client
8 6 (2.45%) Blackberry
8 6 (2.45%) Enterprise Cloud
8 6 (2.45%) User Experience
9 5 (2.04%) Driving Licence
9 5 (2.04%) PKI
10 4 (1.63%) Algorithms
10 4 (1.63%) Analytical Skills
10 4 (1.63%) Enterprise Storage
11 3 (1.22%) Cloud Native
Operating Systems
1 147 (60.00%) Windows
2 101 (41.22%) Windows Server
3 83 (33.88%) Linux
4 39 (15.92%) Windows Server 2012
5 28 (11.43%) Red Hat Enterprise Linux
5 28 (11.43%) Windows Server 2008
6 19 (7.76%) CentOS
7 17 (6.94%) Ubuntu
8 15 (6.12%) Unix
8 15 (6.12%) Windows 10
9 10 (4.08%) Solaris
10 5 (2.04%) Oracle Linux
11 4 (1.63%) Windows 7
12 2 (0.82%) Android
12 2 (0.82%) Mac OS
12 2 (0.82%) Mac OS X
12 2 (0.82%) Windows 8
12 2 (0.82%) Windows Server 2003
13 1 (0.41%) VyOS
Processes & Methodologies
1 68 (27.76%) High Availability
2 60 (24.49%) Infrastructure Engineering
3 57 (23.27%) Migration
4 53 (21.63%) Disaster Recovery
5 40 (16.33%) Agile Software Development
6 39 (15.92%) ITIL
6 39 (15.92%) Performance Tuning
7 38 (15.51%) Database Mirroring
8 37 (15.10%) DevOps
9 36 (14.69%) Configuration Management
10 32 (13.06%) Scrum
11 31 (12.65%) ETL
12 27 (11.02%) Performance Monitoring
13 26 (10.61%) Time Management
14 24 (9.80%) Continuous Integration
15 23 (9.39%) Open Source
16 22 (8.98%) Problem-Solving
17 21 (8.57%) Capacity Planning
18 19 (7.76%) Task Automation
19 16 (6.53%) Change Control
Programming Languages
1 124 (50.61%) SQL
2 88 (35.92%) PowerShell
3 54 (22.04%) Python
4 50 (20.41%) T-SQL
5 37 (15.10%) Bash Shell
6 16 (6.53%) PHP
7 14 (5.71%) Java
8 13 (5.31%) C#
9 8 (3.27%) Shell Script
10 7 (2.86%) JavaScript
11 6 (2.45%) F#
11 6 (2.45%) Go
11 6 (2.45%) Ruby
11 6 (2.45%) VB.NET
12 2 (0.82%) R
12 2 (0.82%) VB
12 2 (0.82%) VBScript
13 1 (0.41%) Korn
13 1 (0.41%) MATLAB
Qualifications
1 32 (13.06%) Microsoft Certification
2 28 (11.43%) MCSE
3 22 (8.98%) Degree
3 22 (8.98%) MCSA
4 18 (7.35%) VMware Certified Professional (VCP)
5 14 (5.71%) Cisco Certification
6 11 (4.49%) CCNP
7 10 (4.08%) CCDP
7 10 (4.08%) VCP5
8 8 (3.27%) ITIL Certification
9 4 (1.63%) MCTS
9 4 (1.63%) RHCSA
10 3 (1.22%) CCNA
11 2 (0.82%) Master's Degree
11 2 (0.82%) RHCE
12 1 (0.41%) AWS Certification
12 1 (0.41%) CCIE
12 1 (0.41%) MCITP
12 1 (0.41%) SC Cleared
12 1 (0.41%) Security Cleared
Quality Assurance & Compliance
1 13 (5.31%) SLA
2 6 (2.45%) HIPAA
3 4 (1.63%) ISO/IEC 27001
4 1 (0.41%) COBIT
4 1 (0.41%) GDPR
4 1 (0.41%) NIST
System Software
1 95 (38.78%) Active Directory
2 54 (22.04%) VMware Infrastructure
3 45 (18.37%) Hyper-V
4 30 (12.24%) Docker
5 28 (11.43%) XenApp
6 19 (7.76%) XenDesktop
7 18 (7.35%) vSphere
8 12 (4.90%) Microsoft App-V
9 10 (4.08%) DRBD
9 10 (4.08%) GlusterFS
10 5 (2.04%) Firmware
10 5 (2.04%) Oracle RAC
10 5 (2.04%) Terminal Services
11 4 (1.63%) BitLocker
11 4 (1.63%) Veritas Cluster Server
12 3 (1.22%) Virtual Machines
12 3 (1.22%) Virtual Servers
13 1 (0.41%) Postfix
13 1 (0.41%) vCloud
13 1 (0.41%) VMware ESXi
Systems Management
1 54 (22.04%) SCCM
2 49 (20.00%) Ansible
3 32 (13.06%) Microsoft Clustering
4 31 (12.65%) Puppet
5 29 (11.84%) SCOM
6 18 (7.35%) Grafana
6 18 (7.35%) Opscode Chef
7 17 (6.94%) Nagios
7 17 (6.94%) ZABBIX
8 14 (5.71%) WSUS
9 13 (5.31%) SCVMM
10 12 (4.90%) Failover Clustering
11 11 (4.49%) XenMobile
12 10 (4.08%) Galera Cluster
12 10 (4.08%) Prometheus
13 6 (2.45%) Kubernetes
14 5 (2.04%) Data Guard
15 4 (1.63%) Backup Exec
16 3 (1.22%) vCenter Server
17 2 (0.82%) Perfmon
Vendors
1 95 (38.78%) VMware
2 90 (36.73%) Microsoft
3 58 (23.67%) Cisco
4 51 (20.82%) Red Hat
5 36 (14.69%) Citrix
6 23 (9.39%) EMC
7 20 (8.16%) HP
8 19 (7.76%) Oracle
9 14 (5.71%) Dell
10 13 (5.31%) Symantec
10 13 (5.31%) Veeam
11 12 (4.90%) NetApp
11 12 (4.90%) SaltStack
12 10 (4.08%) Extreme Networks
12 10 (4.08%) Percona
12 10 (4.08%) ServiceNow
12 10 (4.08%) WatchGuard
13 9 (3.67%) Veritas
14 8 (3.27%) Google
14 8 (3.27%) Wyse