Period
to 21 November 2017

The table below looks at the prevalence of the term Clustering in permanent job vacancies advertised in the City of London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 21 November 2017 with a comparison to the same period over the previous 2 years.

Clustering
Central London > City of London
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 250 253 250
Rank change year-on-year +3 -3 -55
Permanent jobs citing Clustering 72 97 171
As % of all permanent IT jobs advertised in the City of London 0.70% 0.83% 1.00%
As % of the Miscellaneous category 1.49% 1.78% 2.17%
Number of salaries quoted 70 84 152
City of London median annual salary £60,000 £55,000 £57,500
Median salary % change year-on-year +9.09% -4.35% -
10th Percentile £46,250 £36,800 £37,000
90th Percentile £92,500 £75,875 £77,500
Central London median annual salary £59,000 £55,000 £57,500
% change year-on-year +7.27% -4.35% +4.55%

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 the City of London with a requirement for generic IT skills.

All Generic IT Skills
City of London
Permanent vacancies with a requirement for generic IT skills 4834 5443 7884
As % of all permanent IT jobs advertised in the City of London 47.09% 46.85% 46.32%
Number of salaries quoted 4314 4949 6611
City of London median annual salary £60,000 £57,604 £57,500
Median salary % change year-on-year +4.16% +0.18% +4.55%
10th Percentile £33,750 £33,500 £32,500
90th Percentile £96,250 £90,000 £90,000
Central London median annual salary £60,000 £57,500 £57,500
% change year-on-year +4.35% - +4.55%

Clustering
Job Vacancy Trend in the City of London

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

Job vacancy trend for Clustering in the City of London

Clustering
Salary Trend in the City of London

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

Salary trend for Clustering in the City of London

Clustering
Salary Histogram in the City of London

The salary distribution of IT jobs citing Clustering in the City of London over the 6 months to 21 November 2017.

Salary histogram for Clustering in the City of London

For the 6 months to 21 November 2017, IT jobs citing Clustering also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for Clustering.

1 52 (72.22%) SQL
2 45 (62.50%) Finance
3 41 (56.94%) SQL Server
4 28 (38.89%) Windows
5 24 (33.33%) ITIL
6 21 (29.17%) SQL Server Reporting Services
6 21 (29.17%) SQL Server Integration Services
7 20 (27.78%) Replication
7 20 (27.78%) VBScript
8 19 (26.39%) High Availability
9 17 (23.61%) VB
9 17 (23.61%) Siebel
10 15 (20.83%) Oracle BI EE
11 14 (19.44%) Performance Monitoring
11 14 (19.44%) Disaster Recovery
11 14 (19.44%) JavaScript
11 14 (19.44%) Sybase
11 14 (19.44%) Microsoft
12 13 (18.06%) T-SQL
12 13 (18.06%) Performance Tuning
13 12 (16.67%) Low Latency
13 12 (16.67%) Agile Software Development
13 12 (16.67%) Linux
14 11 (15.28%) Games
14 11 (15.28%) Analytical Skills
14 11 (15.28%) SQL Server 2008
14 11 (15.28%) PowerShell
15 10 (13.89%) Degree
15 10 (13.89%) Java
15 10 (13.89%) SAP

Clustering
Co-occurring IT Skills in the City of 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 8 (11.11%) SharePoint
1 8 (11.11%) SharePoint 2010
2 6 (8.33%) SharePoint 2013
3 4 (5.56%) MS Exchange
4 2 (2.78%) Apache Spark
4 2 (2.78%) Exchange Server 2010
Applications
1 1 (1.39%) Microsoft Office
Business Applications
1 6 (8.33%) Revive Adserver
Cloud Services
1 3 (4.17%) IaaS
1 3 (4.17%) Office 365
2 2 (2.78%) Amazon AWS
2 2 (2.78%) Cloud Computing
2 2 (2.78%) PaaS
3 1 (1.39%) Microsoft Azure
3 1 (1.39%) Oracle CX
Communications & Networking
1 7 (9.72%) SAN
2 2 (2.78%) DHCP
2 2 (2.78%) DNS
2 2 (2.78%) LAN
2 2 (2.78%) VLAN
3 1 (1.39%) Fibre Channel
3 1 (1.39%) Firewall
3 1 (1.39%) iSCSI
3 1 (1.39%) TCP/IP
3 1 (1.39%) VPN
3 1 (1.39%) WAN
3 1 (1.39%) Wi-Fi
3 1 (1.39%) Wireless
Database & Business Intelligence
1 41 (56.94%) SQL Server
2 21 (29.17%) SQL Server Integration Services
2 21 (29.17%) SQL Server Reporting Services
3 15 (20.83%) Oracle BI EE
4 11 (15.28%) SQL Server 2008
5 9 (12.50%) MySQL
6 8 (11.11%) Apache Cassandra
6 8 (11.11%) SQL Server Analysis Services
7 7 (9.72%) Oracle Database
8 6 (8.33%) Data Warehouse
8 6 (8.33%) Microsoft Analysis Services
8 6 (8.33%) PostgreSQL
9 4 (5.56%) Big Data
9 4 (5.56%) Business Intelligence Development Studio
10 3 (4.17%) MongoDB
11 2 (2.78%) Apache Hive
11 2 (2.78%) Hadoop
11 2 (2.78%) NoSQL
11 2 (2.78%) Oracle Database 11g
11 2 (2.78%) QlikView
General
1 45 (62.50%) Finance
2 11 (15.28%) Games
3 8 (11.11%) Banking
4 7 (9.72%) Retail
4 7 (9.72%) Telecoms
5 6 (8.33%) Electronics
5 6 (8.33%) Investment Banking
5 6 (8.33%) Manufacturing
5 6 (8.33%) Marketing
6 1 (1.39%) Advertising
Job Titles
1 23 (31.94%) DBA
2 20 (27.78%) SQL DBA
3 15 (20.83%) Siebel Specialist
3 15 (20.83%) Support Specialist
4 13 (18.06%) OBIEE Specialist
4 13 (18.06%) OBIEE Support
4 13 (18.06%) SQL Server DBA
5 10 (13.89%) Administrator
6 9 (12.50%) Architect
7 8 (11.11%) Developer
7 8 (11.11%) Java Architect
7 8 (11.11%) Java Solutions Architect
7 8 (11.11%) Solutions Architect
8 6 (8.33%) Database Developer
8 6 (8.33%) Machine Learning Developer
9 4 (5.56%) Auditor
10 2 (2.78%) Big Data Manager
10 2 (2.78%) Internal Auditor
10 2 (2.78%) IT Support
10 2 (2.78%) Windows Engineer
Libraries, Frameworks & Software Standards
1 4 (5.56%) Oracle GoldenGate
2 2 (2.78%) Apache Avro
2 2 (2.78%) Natural Language Processing
2 2 (2.78%) SAP Basis
2 2 (2.78%) Spark Streaming
2 2 (2.78%) TensorFlow
3 1 (1.39%) ActiveMQ
3 1 (1.39%) CNTK
3 1 (1.39%) Kafka
3 1 (1.39%) Middleware
3 1 (1.39%) Node.js
3 1 (1.39%) Theano
Miscellaneous
1 20 (27.78%) Replication
2 11 (15.28%) Analytical Skills
3 4 (5.56%) Data Centre
4 2 (2.78%) Algorithms
4 2 (2.78%) Blackberry
4 2 (2.78%) Client/Server
4 2 (2.78%) EMC VMAX
4 2 (2.78%) EMC VNX
4 2 (2.78%) Fintech
5 1 (1.39%) CLARiiON
5 1 (1.39%) Cybercrime
5 1 (1.39%) Private Cloud
5 1 (1.39%) Symmetrix
5 1 (1.39%) VxBlock/Vblock
Operating Systems
1 28 (38.89%) Windows
2 12 (16.67%) Linux
3 8 (11.11%) Windows Server
4 5 (6.94%) Windows Server 2012
5 3 (4.17%) Windows Server 2008
6 1 (1.39%) Red Hat Enterprise Linux
6 1 (1.39%) Solaris
6 1 (1.39%) Ubuntu
6 1 (1.39%) Unix
6 1 (1.39%) VMS
6 1 (1.39%) Windows 10
6 1 (1.39%) Windows 2000 Server
6 1 (1.39%) Windows 7
6 1 (1.39%) Windows 8
Processes & Methodologies
1 24 (33.33%) ITIL
2 19 (26.39%) High Availability
3 14 (19.44%) Disaster Recovery
3 14 (19.44%) Performance Monitoring
4 13 (18.06%) Performance Tuning
5 12 (16.67%) Agile Software Development
5 12 (16.67%) Low Latency
6 9 (12.50%) Business Intelligence
7 8 (11.11%) OO
7 8 (11.11%) OOA/OOD
7 8 (11.11%) UML
8 6 (8.33%) Data Visualisation
8 6 (8.33%) Digital Marketing
8 6 (8.33%) Gradient Boosting
8 6 (8.33%) ITIL V3
8 6 (8.33%) Machine Learning
8 6 (8.33%) Programme Management
8 6 (8.33%) Random Forest
8 6 (8.33%) Visualisation
9 5 (6.94%) Incident Management
Programming Languages
1 52 (72.22%) SQL
2 20 (27.78%) VBScript
3 17 (23.61%) VB
4 14 (19.44%) JavaScript
5 13 (18.06%) T-SQL
6 11 (15.28%) PowerShell
7 10 (13.89%) Java
8 6 (8.33%) PHP
8 6 (8.33%) Python
8 6 (8.33%) Ruby
9 1 (1.39%) C
9 1 (1.39%) PL/SQL
Qualifications
1 10 (13.89%) Degree
2 5 (6.94%) Microsoft Certification
3 1 (1.39%) Computer Science Degree
3 1 (1.39%) ITIL Certification
3 1 (1.39%) MCP
3 1 (1.39%) MCSA
3 1 (1.39%) Numerate Degree
Quality Assurance & Compliance
1 2 (2.78%) QA
System Software
1 8 (11.11%) Active Directory
2 5 (6.94%) VMware Infrastructure
3 4 (5.56%) VMware ESXi
4 3 (4.17%) Hyper-V
4 3 (4.17%) XenApp
4 3 (4.17%) XenDesktop
5 2 (2.78%) Apache ZooKeeper
5 2 (2.78%) DFS Replication
5 2 (2.78%) HDFS
5 2 (2.78%) Microsoft App-V
5 2 (2.78%) vSphere
6 1 (1.39%) KVM
6 1 (1.39%) NFS
6 1 (1.39%) Terminal Services
Systems Management
1 6 (8.33%) Perfmon
2 4 (5.56%) NetBackup
3 3 (4.17%) SCCM
4 2 (2.78%) HP Data Protector
4 2 (2.78%) Microsoft Clustering
4 2 (2.78%) Opscode Chef
4 2 (2.78%) Puppet
4 2 (2.78%) SafeCom
4 2 (2.78%) SCOM
4 2 (2.78%) SCOrch
4 2 (2.78%) XenMobile
5 1 (1.39%) Ansible
5 1 (1.39%) Failover Clustering
5 1 (1.39%) vCenter Server
5 1 (1.39%) vMotion
5 1 (1.39%) vRealize
5 1 (1.39%) WSUS
Vendors
1 17 (23.61%) Siebel
2 14 (19.44%) Microsoft
2 14 (19.44%) Sybase
3 10 (13.89%) SAP
4 8 (11.11%) Oracle
5 7 (9.72%) VMware
6 6 (8.33%) Bloomberg
6 6 (8.33%) Calypso
6 6 (8.33%) Murex
6 6 (8.33%) Reuters
7 4 (5.56%) Cisco
7 4 (5.56%) HP
8 3 (4.17%) Citrix
9 2 (2.78%) AppSense
9 2 (2.78%) Clearswift
9 2 (2.78%) Dell
9 2 (2.78%) EMC
9 2 (2.78%) NetApp
9 2 (2.78%) Proofpoint
9 2 (2.78%) Veritas