Period
to 24 June 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 24 June 2018 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
24 Jun 2018
Same period 2017 Same period 2016
Rank 483 381 356
Rank change year-on-year -102 -25 -49
Permanent jobs citing Clustering 357 564 741
As % of all permanent IT jobs advertised in London 0.51% 0.80% 0.90%
As % of the Miscellaneous category 1.05% 1.69% 1.87%
Number of salaries quoted 300 477 663
London median annual salary £60,000 £57,500 £56,500
Median salary % change year-on-year +4.35% +1.77% -5.83%
10th Percentile £42,500 £37,500 £38,000
90th Percentile £86,250 £81,250 £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 34,054 33,300 39,549
As % of all permanent IT jobs advertised in London 48.65% 47.33% 48.04%
Number of salaries quoted 26,465 26,411 33,335
London median annual salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.35% +4.55%
10th Percentile £35,000 £32,500 £32,500
90th Percentile £95,000 £92,500 £87,500
England median annual salary £50,000 £50,000 £50,000

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 24 June 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 24 June 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 -89 75 £60,000 - 3
South London +3 23 £57,500 +2.68% 1
West London +2 16 £55,000 - 7
East London +2 10 £80,000 +14.29% 2
Clustering
England

For the 6 months to 24 June 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.

1 182 (50.98%) Windows
2 180 (50.42%) SQL Server
3 171 (47.90%) SQL
4 120 (33.61%) Finance
5 118 (33.05%) Windows Server
6 114 (31.93%) Linux
7 111 (31.09%) Microsoft
7 111 (31.09%) Active Directory
8 109 (30.53%) High Availability
9 107 (29.97%) VMware
10 101 (28.29%) Microsoft Azure
11 93 (26.05%) Disaster Recovery
12 80 (22.41%) PowerShell
13 73 (20.45%) ITIL
14 69 (19.33%) Replication
15 68 (19.05%) DevOps
16 67 (18.77%) Performance Tuning
16 67 (18.77%) Red Hat
17 66 (18.49%) Agile Software Development
18 65 (18.21%) SAN
19 63 (17.65%) VMware Infrastructure
20 61 (17.09%) SQL Server Integration Services
21 59 (16.53%) Amazon AWS
22 57 (15.97%) Red Hat Enterprise Linux
22 57 (15.97%) Microsoft Clustering
23 56 (15.69%) Failover Clustering
23 56 (15.69%) Windows Server 2008
24 52 (14.57%) Oracle
25 51 (14.29%) Python
25 51 (14.29%) MS Exchange

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 51 (14.29%) MS Exchange
2 45 (12.61%) IIS
3 32 (8.96%) Exchange Server 2010
4 15 (4.20%) Exchange Server 2013
5 14 (3.92%) SharePoint
5 14 (3.92%) Site Server
6 13 (3.64%) Confluence
6 13 (3.64%) Elasticsearch
7 9 (2.52%) Apache Spark
7 9 (2.52%) Skype for Business
8 6 (1.68%) Apache
8 6 (1.68%) CMS
8 6 (1.68%) SAS
8 6 (1.68%) Tomcat
9 5 (1.40%) Apache Solr
10 3 (0.84%) Moodle
10 3 (0.84%) Oracle Coherence
11 2 (0.56%) Blackberry Enterprise Server
11 2 (0.56%) Exchange Server 2003
11 2 (0.56%) Exchange Server 2007
Applications
1 2 (0.56%) Microsoft Office
Business Applications
1 3 (0.84%) Distributed Ledger
1 3 (0.84%) HFM
2 2 (0.56%) Salesforce.com CRM
Cloud Services
1 101 (28.29%) Microsoft Azure
2 59 (16.53%) Amazon AWS
3 37 (10.36%) Office 365
4 25 (7.00%) IaaS
5 17 (4.76%) SaaS
6 14 (3.92%) GitHub
7 13 (3.64%) Amazon EC2
7 13 (3.64%) Google Cloud Platform
8 12 (3.36%) Amazon ELB
8 12 (3.36%) AWS CloudFormation
9 11 (3.08%) Amazon ElastiCache
9 11 (3.08%) Route 53
10 8 (2.24%) Amazon S3
11 7 (1.96%) Amazon EMR
11 7 (1.96%) npm
11 7 (1.96%) Serverless
12 6 (1.68%) AWS Lambda
12 6 (1.68%) PaaS
13 5 (1.40%) Azure Active Directory
13 5 (1.40%) Cloud Computing
Communications & Networking
1 65 (18.21%) SAN
2 44 (12.32%) Firewall
3 36 (10.08%) DHCP
4 34 (9.52%) DNS
5 28 (7.84%) NAS
6 26 (7.28%) TCP/IP
7 25 (7.00%) VPN
8 18 (5.04%) HTTP
9 17 (4.76%) Internet
9 17 (4.76%) iSCSI
10 13 (3.64%) WAN
11 11 (3.08%) Cisco ASA
11 11 (3.08%) Skype
12 10 (2.80%) LAN
13 9 (2.52%) NetScaler
14 8 (2.24%) Kerberos
14 8 (2.24%) Unified Communications
15 7 (1.96%) Remote Desktop
16 6 (1.68%) SSL
17 5 (1.40%) IPv4
Database & Business Intelligence
1 180 (50.42%) SQL Server
2 61 (17.09%) SQL Server Integration Services
3 38 (10.64%) SQL Server 2008
4 35 (9.80%) SQL Server 2016
4 35 (9.80%) SQL Server Reporting Services
5 32 (8.96%) Oracle Database
6 29 (8.12%) Relational Database
7 26 (7.28%) SQL Server 2014
8 23 (6.44%) MySQL
9 21 (5.88%) PostgreSQL
9 21 (5.88%) SQL Server 2012
10 19 (5.32%) SQL Server Analysis Services
11 18 (5.04%) Big Data
11 18 (5.04%) Data Warehouse
12 17 (4.76%) MongoDB
13 14 (3.92%) Event Store
13 14 (3.92%) NoSQL
13 14 (3.92%) Redis
14 12 (3.36%) Hadoop
15 8 (2.24%) SQL Server 2000
Development Applications
1 27 (7.56%) TeamCity
2 24 (6.72%) Jenkins
3 21 (5.88%) Git (software)
4 18 (5.04%) Octopus Deploy
5 17 (4.76%) JIRA
6 14 (3.92%) Atlassian Bamboo
7 7 (1.96%) Maven
7 7 (1.96%) MSBuild
7 7 (1.96%) webpack
8 6 (1.68%) Team Foundation Server
9 5 (1.40%) GitLab
9 5 (1.40%) Travis CI
10 4 (1.12%) Cucumber
10 4 (1.12%) Mocha
10 4 (1.12%) Subversion
10 4 (1.12%) Visual Studio
11 3 (0.84%) Bower
11 3 (0.84%) Grunt
11 3 (0.84%) gulp
11 3 (0.84%) SQL Server Management Studio (SSMS)
General
1 120 (33.61%) Finance
2 40 (11.20%) Banking
3 19 (5.32%) Retail
4 5 (1.40%) Back Office
4 5 (1.40%) Investment Banking
5 4 (1.12%) Advertising
5 4 (1.12%) Marketing
6 3 (0.84%) Automotive
6 3 (0.84%) Legal
6 3 (0.84%) Publishing
7 2 (0.56%) Digital Economy
7 2 (0.56%) Financial Institution
7 2 (0.56%) Games
8 1 (0.28%) Electronics
8 1 (0.28%) French Language
8 1 (0.28%) German Language
8 1 (0.28%) Italian Language
8 1 (0.28%) Manufacturing
8 1 (0.28%) Portuguese Language
8 1 (0.28%) Telecoms
Job Titles
1 118 (33.05%) DBA
2 90 (25.21%) SQL DBA
3 70 (19.61%) Administrator
4 58 (16.25%) Infrastructure Engineer
5 50 (14.01%) SQL Server DBA
6 38 (10.64%) Senior DBA
7 30 (8.40%) Architect
8 24 (6.72%) Systems Engineer
9 19 (5.32%) PostgreSQL DBA
10 18 (5.04%) 3rd Line Engineer
10 18 (5.04%) Oracle DBA
10 18 (5.04%) Senior SQL DBA
11 17 (4.76%) Azure Engineer
12 16 (4.48%) AWS DevOps
12 16 (4.48%) Linux Engineer
13 15 (4.20%) Senior Infrastructure Engineer
14 14 (3.92%) 3rd Line Infrastructure Engineer
15 13 (3.64%) Microsoft Infrastructure Engineer
15 13 (3.64%) Senior Oracle DBA
16 12 (3.36%) VMware Engineer
Libraries, Frameworks & Software Standards
1 35 (9.80%) .NET
2 20 (5.60%) HTML
3 14 (3.92%) ASP.NET
3 14 (3.92%) Elastic Stack
3 14 (3.92%) RabbitMQ
3 14 (3.92%) REST
4 12 (3.36%) .NET Framework
4 12 (3.36%) Middleware
5 11 (3.08%) Ajax
5 11 (3.08%) XML
6 10 (2.80%) CSS
7 9 (2.52%) Web Services
8 8 (2.24%) JSON
9 7 (1.96%) CSS3
9 7 (1.96%) koa
9 7 (1.96%) Node.js
9 7 (1.96%) Redux
9 7 (1.96%) Sass
10 6 (1.68%) Kafka
10 6 (1.68%) React
Miscellaneous
1 69 (19.33%) Replication
2 37 (10.36%) Analytical Skills
3 28 (7.84%) Data Centre
4 13 (3.64%) Computer Science
5 11 (3.08%) Algorithms
6 10 (2.80%) Fintech
7 9 (2.52%) Enterprise Software
8 8 (2.24%) EMC VMAX
8 8 (2.24%) Self-Motivation
9 7 (1.96%) Private Cloud
10 6 (1.68%) EMC VNX
11 5 (1.40%) N-Tier
12 4 (1.12%) Hedge funds
12 4 (1.12%) Management Information System
13 3 (0.84%) iPhone
13 3 (0.84%) Linux Command Line
13 3 (0.84%) Mainframe
13 3 (0.84%) Public Cloud
13 3 (0.84%) Video Conferencing
13 3 (0.84%) VxBlock/Vblock
Operating Systems
1 182 (50.98%) Windows
2 118 (33.05%) Windows Server
3 114 (31.93%) Linux
4 57 (15.97%) Red Hat Enterprise Linux
5 56 (15.69%) Windows Server 2008
6 48 (13.45%) Windows Server 2012
7 19 (5.32%) Unix
8 14 (3.92%) CentOS
9 13 (3.64%) Ubuntu
10 10 (2.80%) Solaris
11 7 (1.96%) SUSE
12 6 (1.68%) Windows Server 2003
13 5 (1.40%) VMS
13 5 (1.40%) Windows 10
14 4 (1.12%) Debian
14 4 (1.12%) Oracle Linux
14 4 (1.12%) Windows 8
15 3 (0.84%) AIX
15 3 (0.84%) Windows 7
16 2 (0.56%) Apple iOS
Processes & Methodologies
1 109 (30.53%) High Availability
2 93 (26.05%) Disaster Recovery
3 73 (20.45%) ITIL
4 68 (19.05%) DevOps
5 67 (18.77%) Performance Tuning
6 66 (18.49%) Agile Software Development
7 49 (13.73%) Capacity Planning
8 47 (13.17%) Continuous Integration
9 45 (12.61%) Problem-Solving
10 37 (10.36%) Configuration Management
11 33 (9.24%) Performance Optimisation
12 31 (8.68%) Load Balancing
13 29 (8.12%) Capacity Management
14 27 (7.56%) Runbook
15 26 (7.28%) Scrum
16 23 (6.44%) Change Control
16 23 (6.44%) E-Commerce
17 21 (5.88%) Migration
17 21 (5.88%) Proactive Monitoring
18 20 (5.60%) Patch Management
Programming Languages
1 171 (47.90%) SQL
2 80 (22.41%) PowerShell
3 51 (14.29%) Python
4 49 (13.73%) T-SQL
5 35 (9.80%) Java
6 31 (8.68%) C#
7 24 (6.72%) JavaScript
8 17 (4.76%) Perl
9 16 (4.48%) Bash Shell
10 13 (3.64%) Scala
11 10 (2.80%) C
12 9 (2.52%) Bourne shell
12 9 (2.52%) Korn
13 7 (1.96%) Java 8
14 4 (1.12%) PHP
14 4 (1.12%) PL/SQL
14 4 (1.12%) Shell Script
14 4 (1.12%) VB
15 3 (0.84%) Haskell
16 2 (0.56%) VBScript
Qualifications
1 30 (8.40%) Microsoft Certification
2 25 (7.00%) MCSE
3 20 (5.60%) Degree
4 18 (5.04%) MCP
4 18 (5.04%) MCSA
5 14 (3.92%) Cisco Certification
6 12 (3.36%) CCNA
7 9 (2.52%) Computer Science Degree
8 7 (1.96%) VMware Certified Professional (VCP)
9 6 (1.68%) AWS Certification
10 5 (1.40%) Master's Degree
11 4 (1.12%) CCNP
11 4 (1.12%) ITIL Certification
11 4 (1.12%) Security Cleared
12 2 (0.56%) CCIE
12 2 (0.56%) DV Cleared
12 2 (0.56%) ITIL Foundation Certificate
12 2 (0.56%) MCITP
12 2 (0.56%) RHCE
13 1 (0.28%) Numerate Degree
Quality Assurance & Compliance
1 20 (5.60%) SLA
2 18 (5.04%) QA
3 5 (1.40%) PSD2
4 3 (0.84%) GCP
4 3 (0.84%) ISO 9001
4 3 (0.84%) PCI DSS
4 3 (0.84%) Sarbanes-Oxley
5 1 (0.28%) GDPR
System Software
1 111 (31.09%) Active Directory
2 63 (17.65%) VMware Infrastructure
3 32 (8.96%) Hyper-V
4 31 (8.68%) Docker
5 18 (5.04%) VMware ESXi
6 16 (4.48%) Veritas Cluster Server
7 12 (3.36%) Virtual Machines
8 8 (2.24%) Oracle RAC
9 7 (1.96%) HDFS
10 6 (1.68%) Apache ZooKeeper
10 6 (1.68%) NFS
10 6 (1.68%) Virtual Servers
11 4 (1.12%) Microsoft Virtual Server
11 4 (1.12%) vSphere
11 4 (1.12%) XenApp
12 2 (0.56%) SRDF
12 2 (0.56%) vCloud
12 2 (0.56%) XenDesktop
12 2 (0.56%) XenServer
13 1 (0.28%) Firmware
Systems Management
1 57 (15.97%) Microsoft Clustering
2 56 (15.69%) Failover Clustering
3 48 (13.45%) Opscode Chef
4 42 (11.76%) Ansible
5 40 (11.20%) SCCM
6 31 (8.68%) SCOM
7 26 (7.28%) Puppet
8 14 (3.92%) SCOrch
9 13 (3.64%) Simpana
10 11 (3.08%) Kibana
10 11 (3.08%) logstash
10 11 (3.08%) Packer
11 10 (2.80%) Kubernetes
12 9 (2.52%) Cisco CUCM
13 8 (2.24%) vCenter Server
14 6 (1.68%) Oozie
15 5 (1.40%) AirWatch
15 5 (1.40%) CFEngine
15 5 (1.40%) Docker Swarm
15 5 (1.40%) FortiGate
Vendors
1 111 (31.09%) Microsoft
2 107 (29.97%) VMware
3 67 (18.77%) Red Hat
4 52 (14.57%) Oracle
5 49 (13.73%) Cisco
6 36 (10.08%) HP
7 22 (6.16%) Citrix
7 22 (6.16%) CommVault
8 20 (5.60%) EMC
9 17 (4.76%) Symantec
10 15 (4.20%) IBM
11 12 (3.36%) NetApp
11 12 (3.36%) RedGate
12 11 (3.08%) Google
12 11 (3.08%) SAP
13 8 (2.24%) Cloudera
14 7 (1.96%) Reuters
14 7 (1.96%) Salesforce.com
14 7 (1.96%) Veritas
14 7 (1.96%) WorldPay