Period
to 23 May 2018

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 23 May 2018 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
23 May 2018
Same period 2017 Same period 2016
Rank 494 385 332
Rank change year-on-year -109 -53 -33
Permanent jobs citing Clustering 363 546 793
As % of all permanent IT jobs advertised in London 0.53% 0.80% 0.96%
As % of the Miscellaneous category 1.09% 1.70% 2.00%
Number of salaries quoted 310 461 724
London median annual salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.35% +4.55% -8.33%
10th Percentile £43,750 £36,250 £38,000
90th Percentile £86,250 £80,000 £75,000
England median annual salary £50,000 £50,000 £50,000

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 33,334 32,200 39,680
As % of all permanent IT jobs advertised in London 48.29% 47.16% 48.25%
Number of salaries quoted 26,180 26,181 33,430
London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £35,000 £32,500 £32,500
90th Percentile £95,000 £92,500 £87,500
England median annual salary £50,000 £49,500 £50,000
% change year-on-year +1.01% -1.00% +5.26%

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 23 May 2018.

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 23 May 2018. 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 -63 87 £55,000 -8.33% 12
South London +3 22 £57,500 -
West London +27 20 £55,000 - 8
East London +15 11 £80,000 +14.29% 3
Clustering
England

For the 6 months to 23 May 2018, 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.

1 202 (55.65%) Windows
2 176 (48.48%) SQL Server
3 170 (46.83%) SQL
4 142 (39.12%) Windows Server
5 136 (37.47%) Finance
6 124 (34.16%) Microsoft
7 120 (33.06%) Active Directory
8 114 (31.40%) VMware
9 105 (28.93%) Linux
10 98 (27.00%) Microsoft Azure
11 91 (25.07%) High Availability
12 87 (23.97%) PowerShell
13 84 (23.14%) Disaster Recovery
14 81 (22.31%) ITIL
15 77 (21.21%) SAN
16 68 (18.73%) DevOps
17 67 (18.46%) Agile Software Development
18 65 (17.91%) VMware Infrastructure
18 65 (17.91%) MS Exchange
19 64 (17.63%) Windows Server 2008
19 64 (17.63%) Performance Tuning
20 60 (16.53%) Red Hat
20 60 (16.53%) Microsoft Clustering
21 59 (16.25%) Replication
22 57 (15.70%) SQL Server Integration Services
22 57 (15.70%) Windows Server 2012
23 55 (15.15%) Cisco
24 53 (14.60%) Amazon AWS
24 53 (14.60%) Failover Clustering
25 52 (14.33%) Problem-Solving

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 65 (17.91%) MS Exchange
2 49 (13.50%) IIS
3 42 (11.57%) Exchange Server 2010
4 15 (4.13%) Exchange Server 2013
5 14 (3.86%) Site Server
6 12 (3.31%) SAS
6 12 (3.31%) SharePoint
7 11 (3.03%) Apache Spark
7 11 (3.03%) CMS
7 11 (3.03%) Elasticsearch
8 10 (2.75%) Confluence
8 10 (2.75%) Skype for Business
9 7 (1.93%) Apache
9 7 (1.93%) Tomcat
10 5 (1.38%) Apache Solr
11 4 (1.10%) Exchange Server 2007
12 3 (0.83%) Moodle
13 2 (0.55%) Blackberry Enterprise Server
13 2 (0.55%) Exchange Server 2003
13 2 (0.55%) OpenStack
Applications
1 4 (1.10%) Microsoft Office
2 1 (0.28%) MS Visio
Business Applications
1 7 (1.93%) HFM
2 2 (0.55%) Distributed Ledger
2 2 (0.55%) Salesforce.com CRM
3 1 (0.28%) SAP Business One
Cloud Services
1 98 (27.00%) Microsoft Azure
2 53 (14.60%) Amazon AWS
3 41 (11.29%) Office 365
4 23 (6.34%) IaaS
5 13 (3.58%) SaaS
6 12 (3.31%) Google Cloud Platform
7 11 (3.03%) Amazon EC2
8 9 (2.48%) Amazon ELB
8 9 (2.48%) GitHub
9 8 (2.20%) Amazon ElastiCache
9 8 (2.20%) Amazon S3
9 8 (2.20%) AWS CloudFormation
9 8 (2.20%) Route 53
10 7 (1.93%) Amazon EMR
11 6 (1.65%) AWS Lambda
11 6 (1.65%) Cloud Computing
11 6 (1.65%) Serverless
12 5 (1.38%) npm
12 5 (1.38%) PaaS
13 4 (1.10%) Virtual Private Cloud
Communications & Networking
1 77 (21.21%) SAN
2 52 (14.33%) Firewall
3 47 (12.95%) DNS
4 42 (11.57%) DHCP
5 28 (7.71%) NAS
6 26 (7.16%) VPN
7 22 (6.06%) iSCSI
8 21 (5.79%) TCP/IP
9 19 (5.23%) WAN
10 14 (3.86%) HTTP
10 14 (3.86%) Internet
11 13 (3.58%) Unified Communications
12 12 (3.31%) LAN
12 12 (3.31%) Skype
13 10 (2.75%) NetScaler
14 9 (2.48%) Cisco ASA
14 9 (2.48%) Wireless
15 8 (2.20%) Kerberos
15 8 (2.20%) Network Security
15 8 (2.20%) Remote Desktop
Database & Business Intelligence
1 176 (48.48%) SQL Server
2 57 (15.70%) SQL Server Integration Services
3 35 (9.64%) SQL Server Reporting Services
4 34 (9.37%) SQL Server 2016
5 33 (9.09%) SQL Server 2008
6 30 (8.26%) Oracle Database
7 27 (7.44%) Relational Database
8 24 (6.61%) MongoDB
9 22 (6.06%) PostgreSQL
10 20 (5.51%) Big Data
10 20 (5.51%) SQL Server 2014
11 19 (5.23%) MySQL
11 19 (5.23%) SQL Server 2012
12 18 (4.96%) Data Warehouse
13 16 (4.41%) NoSQL
13 16 (4.41%) SQL Server Analysis Services
14 13 (3.58%) Hadoop
15 11 (3.03%) Event Store
15 11 (3.03%) Redis
16 10 (2.75%) Apache Cassandra
Development Applications
1 31 (8.54%) TeamCity
2 23 (6.34%) Jenkins
3 22 (6.06%) Octopus Deploy
4 21 (5.79%) Git (software)
5 16 (4.41%) Atlassian Bamboo
5 16 (4.41%) JIRA
6 14 (3.86%) MSBuild
7 8 (2.20%) Team Foundation Server
8 7 (1.93%) Maven
8 7 (1.93%) Travis CI
9 5 (1.38%) GitLab
9 5 (1.38%) webpack
10 4 (1.10%) Cucumber
10 4 (1.10%) Visual Studio
11 3 (0.83%) Bower
11 3 (0.83%) Grunt
11 3 (0.83%) gulp
11 3 (0.83%) Mocha
11 3 (0.83%) SQL Server Management Studio (SSMS)
11 3 (0.83%) Subversion
General
1 136 (37.47%) Finance
2 46 (12.67%) Banking
3 18 (4.96%) Retail
4 10 (2.75%) Advertising
5 8 (2.20%) Investment Banking
6 6 (1.65%) Back Office
6 6 (1.65%) Marketing
7 4 (1.10%) Legal
7 4 (1.10%) Publishing
8 3 (0.83%) Automotive
9 2 (0.55%) Digital Economy
9 2 (0.55%) Financial Institution
9 2 (0.55%) Games
10 1 (0.28%) Electronics
10 1 (0.28%) French Language
10 1 (0.28%) German Language
10 1 (0.28%) Italian Language
10 1 (0.28%) Law
10 1 (0.28%) Manufacturing
10 1 (0.28%) Telecoms
Job Titles
1 106 (29.20%) DBA
2 78 (21.49%) SQL DBA
3 71 (19.56%) Administrator
4 63 (17.36%) Infrastructure Engineer
5 40 (11.02%) SQL Server DBA
6 37 (10.19%) Senior DBA
7 26 (7.16%) Systems Engineer
8 24 (6.61%) Architect
9 21 (5.79%) 3rd Line Engineer
10 20 (5.51%) VMware Engineer
11 19 (5.23%) Senior SQL DBA
12 18 (4.96%) Linux Engineer
12 18 (4.96%) PostgreSQL DBA
13 17 (4.68%) Senior Infrastructure Engineer
14 16 (4.41%) 3rd Line Infrastructure Engineer
14 16 (4.41%) Azure Engineer
14 16 (4.41%) Oracle DBA
15 14 (3.86%) AWS DevOps
16 13 (3.58%) Analyst
16 13 (3.58%) Cisco Engineer
Libraries, Frameworks & Software Standards
1 39 (10.74%) .NET
2 16 (4.41%) HTML
3 14 (3.86%) Middleware
3 14 (3.86%) Web Services
4 13 (3.58%) REST
5 11 (3.03%) ASP.NET
5 11 (3.03%) Elastic Stack
5 11 (3.03%) RabbitMQ
5 11 (3.03%) XML
6 9 (2.48%) .NET Framework
7 8 (2.20%) Ajax
7 8 (2.20%) CSS
7 8 (2.20%) JSON
7 8 (2.20%) Spring
8 7 (1.93%) Kafka
9 6 (1.65%) Natural Language Processing
10 5 (1.38%) CSS3
10 5 (1.38%) HTML5
10 5 (1.38%) Lucene
10 5 (1.38%) Node.js
Miscellaneous
1 59 (16.25%) Replication
2 38 (10.47%) Data Centre
3 36 (9.92%) Analytical Skills
4 15 (4.13%) Computer Science
5 13 (3.58%) Algorithms
6 11 (3.03%) EMC VMAX
7 9 (2.48%) Enterprise Software
7 9 (2.48%) Fintech
7 9 (2.48%) Management Information System
8 8 (2.20%) N-Tier
9 7 (1.93%) EMC VNX
10 6 (1.65%) Private Cloud
10 6 (1.65%) Self-Motivation
11 5 (1.38%) Mainframe
12 4 (1.10%) Hedge funds
13 3 (0.83%) iPhone
13 3 (0.83%) Linux Command Line
13 3 (0.83%) PKI
13 3 (0.83%) Public Cloud
13 3 (0.83%) Video Conferencing
Operating Systems
1 202 (55.65%) Windows
2 142 (39.12%) Windows Server
3 105 (28.93%) Linux
4 64 (17.63%) Windows Server 2008
5 57 (15.70%) Windows Server 2012
6 52 (14.33%) Red Hat Enterprise Linux
7 19 (5.23%) Unix
8 11 (3.03%) CentOS
9 10 (2.75%) Ubuntu
10 8 (2.20%) Solaris
11 6 (1.65%) Windows 10
12 5 (1.38%) SUSE
13 4 (1.10%) Debian
13 4 (1.10%) Windows 7
13 4 (1.10%) Windows 8
13 4 (1.10%) Windows Server 2003
14 3 (0.83%) AIX
14 3 (0.83%) VMS
15 2 (0.55%) Apple iOS
16 1 (0.28%) Mac OS X
Processes & Methodologies
1 91 (25.07%) High Availability
2 84 (23.14%) Disaster Recovery
3 81 (22.31%) ITIL
4 68 (18.73%) DevOps
5 67 (18.46%) Agile Software Development
6 64 (17.63%) Performance Tuning
7 52 (14.33%) Problem-Solving
8 50 (13.77%) Continuous Integration
9 43 (11.85%) Capacity Planning
9 43 (11.85%) Configuration Management
10 32 (8.82%) Load Balancing
11 30 (8.26%) Performance Optimisation
12 28 (7.71%) Scrum
13 27 (7.44%) Mentoring
14 25 (6.89%) Capacity Management
15 24 (6.61%) ITIL V3
16 23 (6.34%) Change Management
17 22 (6.06%) Change Control
17 22 (6.06%) Migration
17 22 (6.06%) Runbook
Programming Languages
1 170 (46.83%) SQL
2 87 (23.97%) PowerShell
3 42 (11.57%) Python
4 37 (10.19%) T-SQL
5 35 (9.64%) Java
6 27 (7.44%) C#
7 23 (6.34%) JavaScript
8 13 (3.58%) Bash Shell
8 13 (3.58%) Perl
9 11 (3.03%) Scala
10 10 (2.75%) C
11 8 (2.20%) Bourne shell
11 8 (2.20%) Korn
12 7 (1.93%) Java 8
12 7 (1.93%) VB
12 7 (1.93%) VBScript
13 4 (1.10%) PL/SQL
14 3 (0.83%) COBOL
14 3 (0.83%) PHP
14 3 (0.83%) Shell Script
Qualifications
1 38 (10.47%) Microsoft Certification
2 29 (7.99%) MCSE
3 21 (5.79%) Cisco Certification
3 21 (5.79%) MCP
4 20 (5.51%) Degree
5 17 (4.68%) MCSA
6 15 (4.13%) CCNA
7 10 (2.75%) Computer Science Degree
8 9 (2.48%) VMware Certified Professional (VCP)
9 8 (2.20%) CCNP
10 6 (1.65%) CCIE
11 5 (1.38%) AWS Certification
11 5 (1.38%) CCVP
11 5 (1.38%) Master's Degree
12 4 (1.10%) ITIL Certification
12 4 (1.10%) Security Cleared
13 3 (0.83%) MCITP
14 2 (0.55%) CCA
14 2 (0.55%) Citrix Certification
14 2 (0.55%) DV Cleared
Quality Assurance & Compliance
1 22 (6.06%) SLA
2 15 (4.13%) QA
3 5 (1.38%) PSD2
4 3 (0.83%) ISO 9001
4 3 (0.83%) PCI DSS
4 3 (0.83%) Sarbanes-Oxley
5 2 (0.55%) GCP
System Software
1 120 (33.06%) Active Directory
2 65 (17.91%) VMware Infrastructure
3 31 (8.54%) Hyper-V
4 29 (7.99%) Docker
5 23 (6.34%) VMware ESXi
6 14 (3.86%) Veritas Cluster Server
7 11 (3.03%) XenApp
8 10 (2.75%) Virtual Machines
9 7 (1.93%) HDFS
9 7 (1.93%) vSphere
10 6 (1.65%) Apache ZooKeeper
10 6 (1.65%) NFS
10 6 (1.65%) Terminal Services
11 5 (1.38%) XenDesktop
12 4 (1.10%) Microsoft Virtual Server
12 4 (1.10%) SRDF
12 4 (1.10%) Virtual Servers
13 3 (0.83%) Oracle RAC
14 2 (0.55%) XenServer
15 1 (0.28%) Samba
Systems Management
1 60 (16.53%) Microsoft Clustering
2 53 (14.60%) Failover Clustering
3 51 (14.05%) SCCM
4 42 (11.57%) Opscode Chef
5 36 (9.92%) Ansible
5 36 (9.92%) SCOM
6 31 (8.54%) Puppet
7 15 (4.13%) SCOrch
8 14 (3.86%) Simpana
9 13 (3.58%) Cisco CUCM
10 9 (2.48%) Kubernetes
10 9 (2.48%) WSUS
11 8 (2.20%) Kibana
11 8 (2.20%) logstash
11 8 (2.20%) Packer
11 8 (2.20%) vCenter Server
12 7 (1.93%) CFEngine
13 6 (1.65%) Oozie
13 6 (1.65%) SCVMM
14 5 (1.38%) AirWatch
Vendors
1 124 (34.16%) Microsoft
2 114 (31.40%) VMware
3 60 (16.53%) Red Hat
4 55 (15.15%) Cisco
5 44 (12.12%) Oracle
6 38 (10.47%) HP
7 34 (9.37%) Citrix
8 25 (6.89%) CommVault
9 21 (5.79%) EMC
10 18 (4.96%) IBM
10 18 (4.96%) Symantec
11 16 (4.41%) RedGate
11 16 (4.41%) SAP
12 12 (3.31%) NetApp
13 11 (3.03%) Google
14 9 (2.48%) Palo Alto
15 8 (2.20%) Cloudera
16 7 (1.93%) New Relic
16 7 (1.93%) ServiceNow
16 7 (1.93%) Tableau