Period
to 21 April 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 21 April 2019 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
21 Apr 2019
Same period 2018 Same period 2017
Rank 431 488 389
Rank change year-on-year +57 -99 -46
Permanent jobs citing Clustering 359 375 526
As % of all permanent IT jobs advertised in London 0.59% 0.54% 0.77%
As % of the Miscellaneous category 1.31% 1.18% 1.71%
Number of salaries quoted 307 320 451
London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £42,500 £45,000 £36,250
90th Percentile £90,000 £86,625 £80,000
England median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -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 27,503 31,851 30,714
As % of all permanent IT jobs advertised in London 45.30% 45.49% 44.77%
Number of salaries quoted 21,741 25,482 25,390
London median annual salary £65,000 £60,000 £60,000
Median salary % change year-on-year +8.33% - +9.09%
10th Percentile £36,250 £35,000 £32,750
90th Percentile £100,000 £95,000 £92,500
England median annual salary £55,000 £50,500 £50,000
% change year-on-year +8.91% +1.00% -

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 21 April 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 21 April 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 +26 92 £60,000 +11.67% 3
South London +9 27 £55,000 -4.35%
West London +16 9 £44,000 -20.00%
East London +14 7 £41,500 -30.83%
Clustering
England

For the 6 months to 21 April 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.

1 196 (54.60%) Windows
2 180 (50.14%) SQL
3 170 (47.35%) Microsoft
4 152 (42.34%) SQL Server
5 143 (39.83%) VMware
6 139 (38.72%) Windows Server
7 131 (36.49%) Active Directory
8 119 (33.15%) High Availability
9 111 (30.92%) PowerShell
10 107 (29.81%) Finance
11 103 (28.69%) VMware Infrastructure
12 102 (28.41%) Microsoft Azure
13 96 (26.74%) Linux
14 90 (25.07%) DNS
15 80 (22.28%) ITIL
16 78 (21.73%) Replication
17 76 (21.17%) Amazon AWS
18 73 (20.33%) Failover Clustering
19 72 (20.06%) Windows Server 2008
20 71 (19.78%) SQL Server Integration Services
20 71 (19.78%) Microsoft Certification
20 71 (19.78%) Microsoft Clustering
21 69 (19.22%) Infrastructure Engineering
21 69 (19.22%) Cisco
22 65 (18.11%) Disaster Recovery
23 64 (17.83%) Windows Server 2012
24 63 (17.55%) SQL Server Reporting Services
24 63 (17.55%) SQL Server Analysis Services
25 62 (17.27%) Python
26 61 (16.99%) T-SQL

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 57 (15.88%) SharePoint
2 54 (15.04%) IIS
3 32 (8.91%) MS Exchange
4 16 (4.46%) Tomcat
5 14 (3.90%) Elasticsearch
6 13 (3.62%) Apache
7 10 (2.79%) BizTalk Server
8 9 (2.51%) Exchange Server 2010
8 9 (2.51%) SharePoint 2013
9 8 (2.23%) CMS
9 8 (2.23%) Skype for Business
10 4 (1.11%) Apache Spark
10 4 (1.11%) Exchange Server 2007
10 4 (1.11%) Exchange Server 2013
10 4 (1.11%) nginx
10 4 (1.11%) OpenStack
11 3 (0.84%) Office Communications Server
11 3 (0.84%) Oracle Application Server
12 2 (0.56%) Oracle Coherence
13 1 (0.28%) Apache Solr
Applications
1 12 (3.34%) Microsoft Office
2 10 (2.79%) MS Visio
3 1 (0.28%) InfoPath
3 1 (0.28%) Microsoft PowerPoint
Business Applications
1 6 (1.67%) Dynamics CRM
Cloud Services
1 102 (28.41%) Microsoft Azure
2 76 (21.17%) Amazon AWS
3 49 (13.65%) Office 365
4 20 (5.57%) IaaS
5 19 (5.29%) Google Cloud Platform
6 16 (4.46%) Azure Active Directory
7 14 (3.90%) SaaS
8 13 (3.62%) PaaS
9 4 (1.11%) Azure Data Factory
9 4 (1.11%) Cortana Intelligence Suite
9 4 (1.11%) GitHub
9 4 (1.11%) npm
9 4 (1.11%) NuGet
10 3 (0.84%) AWS CloudFormation
11 2 (0.56%) AWS Lambda
11 2 (0.56%) Cloud Computing
11 2 (0.56%) Serverless
12 1 (0.28%) Amazon EC2
12 1 (0.28%) Amazon Kinesis
12 1 (0.28%) Amazon S3
Communications & Networking
1 90 (25.07%) DNS
2 60 (16.71%) SAN
3 57 (15.88%) DHCP
4 55 (15.32%) Firewall
5 40 (11.14%) TCP/IP
6 37 (10.31%) WAN
7 26 (7.24%) iSCSI
8 25 (6.96%) Internet
9 23 (6.41%) NAS
9 23 (6.41%) Wireless
10 20 (5.57%) LAN
10 20 (5.57%) VLAN
11 19 (5.29%) VoIP
12 17 (4.74%) MPLS
13 16 (4.46%) NetScaler
14 15 (4.18%) SSL
15 13 (3.62%) VPN
16 12 (3.34%) Cisco IOS
17 10 (2.79%) Fibre Channel
17 10 (2.79%) Network Security
Database & Business Intelligence
1 152 (42.34%) SQL Server
2 71 (19.78%) SQL Server Integration Services
3 63 (17.55%) SQL Server Analysis Services
3 63 (17.55%) SQL Server Reporting Services
4 61 (16.99%) MongoDB
5 48 (13.37%) PostgreSQL
6 43 (11.98%) NoSQL
7 42 (11.70%) SQL Server 2016
8 37 (10.31%) MySQL
9 36 (10.03%) Data Warehouse
9 36 (10.03%) SQL Server 2012
10 35 (9.75%) SQL Server 2008
11 34 (9.47%) Microsoft Analysis Services
12 33 (9.19%) Relational Database
13 30 (8.36%) Azure SQL Database
14 29 (8.08%) SQL Server 2005
15 26 (7.24%) Big Data
16 24 (6.69%) SQL Server 2014
17 23 (6.41%) Amazon RDS
18 21 (5.85%) Amazon DynamoDB
Development Applications
1 21 (5.85%) Jenkins
2 14 (3.90%) JIRA
3 13 (3.62%) Git (software)
4 9 (2.51%) Octopus Deploy
4 9 (2.51%) Team Foundation Server
4 9 (2.51%) TeamCity
5 7 (1.95%) SQL Server Management Studio (SSMS)
6 6 (1.67%) Maven
7 5 (1.39%) Eclipse
7 5 (1.39%) Subversion
7 5 (1.39%) Visual Studio
8 4 (1.11%) Cucumber
9 2 (0.56%) MSI
10 1 (0.28%) JMeter
10 1 (0.28%) Mercurial
10 1 (0.28%) Visual Studio Team System
10 1 (0.28%) WiX
10 1 (0.28%) Xdebug
General
1 107 (29.81%) Finance
2 33 (9.19%) Banking
3 23 (6.41%) Retail
4 15 (4.18%) Advertising
5 13 (3.62%) Legal
6 8 (2.23%) Financial Institution
7 6 (1.67%) Law
8 5 (1.39%) Telecoms
9 3 (0.84%) Back Office
9 3 (0.84%) Marketing
10 1 (0.28%) Automotive
10 1 (0.28%) Games
10 1 (0.28%) Publishing
Job Titles
1 113 (31.48%) DBA
2 86 (23.96%) SQL DBA
3 68 (18.94%) Administrator
4 57 (15.88%) Infrastructure Engineer
5 36 (10.03%) SQL Server DBA
6 30 (8.36%) Architect
6 30 (8.36%) Senior DBA
7 22 (6.13%) Senior SQL DBA
8 19 (5.29%) Developer
9 18 (5.01%) Cloud Architect
10 15 (4.18%) Azure Engineer
10 15 (4.18%) Microsoft Engineer
10 15 (4.18%) Systems Engineer
11 14 (3.90%) Azure Infrastructure Engineer
11 14 (3.90%) Microsoft Infrastructure Engineer
11 14 (3.90%) Systems Administrator
12 13 (3.62%) 3rd Line Engineer
12 13 (3.62%) Senior Infrastructure Engineer
13 12 (3.34%) Windows Specialist
14 11 (3.06%) Senior SQL Server DBA
Libraries, Frameworks & Software Standards
1 19 (5.29%) .NET
2 13 (3.62%) JSON
2 13 (3.62%) Web Services
3 11 (3.06%) RabbitMQ
4 9 (2.51%) LDAP
4 9 (2.51%) RESTful
5 8 (2.23%) XMPP
6 6 (1.67%) AngularJS
6 6 (1.67%) XML
7 5 (1.39%) WSH
8 4 (1.11%) Akka
8 4 (1.11%) Apache Camel
8 4 (1.11%) Aurelia
8 4 (1.11%) Hibernate
8 4 (1.11%) Middleware
8 4 (1.11%) OSGi
8 4 (1.11%) Spring
8 4 (1.11%) TensorFlow
9 3 (0.84%) HTML
9 3 (0.84%) XGBoost
Miscellaneous
1 78 (21.73%) Replication
2 39 (10.86%) Data Centre
3 32 (8.91%) Self-Motivation
4 23 (6.41%) Management Information System
5 22 (6.13%) Analytical Skills
6 17 (4.74%) EMC VNX
7 14 (3.90%) Fat Client
7 14 (3.90%) Thin Client
8 11 (3.06%) PKI
9 9 (2.51%) Fintech
10 7 (1.95%) HP Storage
11 6 (1.67%) Public Cloud
12 5 (1.39%) Enterprise Software
12 5 (1.39%) Enterprise Storage
12 5 (1.39%) Hedge funds
12 5 (1.39%) User Experience
13 4 (1.11%) EMC VMAX
13 4 (1.11%) Enterprise Cloud
14 3 (0.84%) Internet of Things
14 3 (0.84%) Private Cloud
Operating Systems
1 196 (54.60%) Windows
2 139 (38.72%) Windows Server
3 96 (26.74%) Linux
4 72 (20.06%) Windows Server 2008
5 64 (17.83%) Windows Server 2012
6 38 (10.58%) Red Hat Enterprise Linux
7 28 (7.80%) Unix
8 12 (3.34%) Windows Server 2003
9 11 (3.06%) Windows 7
9 11 (3.06%) Windows 8
10 10 (2.79%) Windows 10
11 9 (2.51%) FreeBSD
12 8 (2.23%) AIX
13 7 (1.95%) CentOS
13 7 (1.95%) Ubuntu
14 5 (1.39%) Solaris
15 3 (0.84%) Mac OS X
16 2 (0.56%) Android
17 1 (0.28%) Apple iOS
17 1 (0.28%) Debian
Processes & Methodologies
1 119 (33.15%) High Availability
2 80 (22.28%) ITIL
3 69 (19.22%) Infrastructure Engineering
4 65 (18.11%) Disaster Recovery
5 51 (14.21%) Agile Software Development
5 51 (14.21%) DevOps
6 49 (13.65%) Migration
7 47 (13.09%) Problem-Solving
8 45 (12.53%) Business Intelligence
8 45 (12.53%) Performance Tuning
9 38 (10.58%) Performance Monitoring
10 37 (10.31%) Database Mirroring
10 37 (10.31%) Load Balancing
11 33 (9.19%) Change Control
11 33 (9.19%) CRM
11 33 (9.19%) Task Automation
12 32 (8.91%) Database Security
13 28 (7.80%) Line Management
14 27 (7.52%) Capacity Planning
15 25 (6.96%) Project Management
Programming Languages
1 180 (50.14%) SQL
2 111 (30.92%) PowerShell
3 62 (17.27%) Python
4 61 (16.99%) T-SQL
5 24 (6.69%) Perl
6 22 (6.13%) Java
7 21 (5.85%) JavaScript
8 19 (5.29%) Bash Shell
9 16 (4.46%) Ruby
9 16 (4.46%) Shell Script
10 13 (3.62%) C#
11 11 (3.06%) Go
12 9 (2.51%) VBScript
13 8 (2.23%) C
14 7 (1.95%) PHP
15 4 (1.11%) F#
15 4 (1.11%) Java 8
15 4 (1.11%) VB.NET
16 3 (0.84%) Scala
17 1 (0.28%) MATLAB
Qualifications
1 71 (19.78%) Microsoft Certification
2 53 (14.76%) MCSA
3 41 (11.42%) MCSE
4 29 (8.08%) VMware Certified Professional (VCP)
5 26 (7.24%) Degree
6 21 (5.85%) Cisco Certification
7 18 (5.01%) ITIL Certification
8 13 (3.62%) HND
9 9 (2.51%) CCIE
9 9 (2.51%) CCNP
10 8 (2.23%) CCNA
10 8 (2.23%) CCVP
10 8 (2.23%) RHCE
10 8 (2.23%) Security Cleared
10 8 (2.23%) VCP5
11 7 (1.95%) DV Cleared
11 7 (1.95%) MCP
12 5 (1.39%) CCDA
12 5 (1.39%) CISSP
12 5 (1.39%) Computer Science Degree
Quality Assurance & Compliance
1 9 (2.51%) SLA
2 8 (2.23%) PCI DSS
3 6 (1.67%) ISO/IEC 27001
4 5 (1.39%) GDPR
5 4 (1.11%) HIPAA
5 4 (1.11%) QA
6 2 (0.56%) PSD2
System Software
1 131 (36.49%) Active Directory
2 103 (28.69%) VMware Infrastructure
3 48 (13.37%) Hyper-V
4 41 (11.42%) XenApp
5 30 (8.36%) Microsoft App-V
6 28 (7.80%) XenDesktop
7 18 (5.01%) Docker
7 18 (5.01%) vSphere
8 16 (4.46%) VMware ESXi
9 14 (3.90%) DFS Replication
10 13 (3.62%) NFS
11 11 (3.06%) Oracle RAC
12 4 (1.11%) Veritas Cluster Server
13 3 (0.84%) LXC
13 3 (0.84%) Postfix
13 3 (0.84%) Terminal Services
13 3 (0.84%) Virtual Machines
13 3 (0.84%) Virtual Servers
14 2 (0.56%) Active Directory Lightweight Directory Services
14 2 (0.56%) Oracle Clusterware
Systems Management
1 73 (20.33%) Failover Clustering
2 71 (19.78%) Microsoft Clustering
3 61 (16.99%) SCCM
4 38 (10.58%) Ansible
5 36 (10.03%) SCOM
6 21 (5.85%) Perfmon
7 18 (5.01%) WSUS
8 17 (4.74%) Puppet
9 15 (4.18%) Backup Exec
10 13 (3.62%) NetBackup
11 12 (3.34%) vCenter Server
12 11 (3.06%) Opscode Chef
13 10 (2.79%) IBM BigFix
14 9 (2.51%) Rundeck
15 8 (2.23%) Cisco CUCM
15 8 (2.23%) Cisco UCCE
15 8 (2.23%) Cisco UCCX
15 8 (2.23%) FortiGate
15 8 (2.23%) Grafana
16 7 (1.95%) Enterprise Manager Cloud Control
Vendors
1 170 (47.35%) Microsoft
2 143 (39.83%) VMware
3 69 (19.22%) Cisco
4 56 (15.60%) HP
5 52 (14.48%) Oracle
6 46 (12.81%) Citrix
7 38 (10.58%) Veeam
8 34 (9.47%) Red Hat
9 32 (8.91%) SolarWinds
10 30 (8.36%) EMC
11 28 (7.80%) IBM
12 24 (6.69%) Dell
13 22 (6.13%) RedGate
14 20 (5.57%) NetApp
14 20 (5.57%) Veritas
15 19 (5.29%) Google
16 14 (3.90%) Wyse
17 10 (2.79%) EqualLogic
17 10 (2.79%) Juniper
18 9 (2.51%) Palo Alto