Period
to 22 September 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 22 September 2018 with a comparison to the same period over the previous 2 years.

Clustering
England > London
6 months to
22 Sep 2018
Same period 2017 Same period 2016
Rank 464 384 388
Rank change year-on-year -80 +4 -31
Permanent jobs citing Clustering 389 609 628
As % of all permanent IT jobs advertised in London 0.57% 0.81% 0.79%
As % of the Miscellaneous category 1.17% 1.62% 1.68%
Number of salaries quoted 345 506 548
London median annual salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.35% +4.55% -
10th Percentile £42,500 £40,000 £38,000
90th Percentile £86,250 £85,000 £72,500
England median annual salary £53,250 £50,000 £50,000
% change year-on-year +6.50% - +2.04%

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 33,243 37,686 37,304
As % of all permanent IT jobs advertised in London 48.60% 50.31% 47.22%
Number of salaries quoted 25,813 26,911 31,785
London median annual salary £62,500 £60,000 £57,500
Median salary % change year-on-year +4.17% +4.35% +4.55%
10th Percentile £35,000 £33,750 £32,500
90th Percentile £97,500 £93,750 £89,625
England median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - +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 22 September 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 22 September 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 -69 67 £60,000 - 9
South London +14 26 £57,500 +27.78% 2
West London +10 19 £55,000 - 10
East London -11 9 £70,000 - 3
Clustering
England

For the 6 months to 22 September 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.

1 231 (59.38%) SQL Server
2 229 (58.87%) SQL
3 184 (47.30%) Windows
4 171 (43.96%) High Availability
5 141 (36.25%) Active Directory
6 136 (34.96%) Microsoft Azure
7 135 (34.70%) Linux
8 127 (32.65%) Microsoft
9 121 (31.11%) VMware
10 116 (29.82%) Finance
11 108 (27.76%) Windows Server
12 103 (26.48%) Replication
13 96 (24.68%) Disaster Recovery
14 87 (22.37%) ITIL
15 84 (21.59%) PowerShell
16 83 (21.34%) Performance Tuning
17 82 (21.08%) Amazon AWS
18 81 (20.82%) T-SQL
19 79 (20.31%) SAN
20 75 (19.28%) VMware Infrastructure
21 74 (19.02%) Red Hat
21 74 (19.02%) Infrastructure Engineering
22 73 (18.77%) Red Hat Enterprise Linux
23 72 (18.51%) Python
24 71 (18.25%) SQL Server Integration Services
25 70 (17.99%) Failover Clustering
26 69 (17.74%) DevOps
27 67 (17.22%) Opscode Chef
28 66 (16.97%) Ansible
29 65 (16.71%) Oracle

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 40 (10.28%) MS Exchange
2 36 (9.25%) IIS
3 23 (5.91%) Exchange Server 2010
4 19 (4.88%) Confluence
5 18 (4.63%) SharePoint
6 17 (4.37%) Elasticsearch
7 13 (3.34%) Skype for Business
8 11 (2.83%) Exchange Server 2013
9 5 (1.29%) Apache
9 5 (1.29%) Exchange Server 2007
9 5 (1.29%) Site Server
10 4 (1.03%) OpenStack
10 4 (1.03%) Oracle Coherence
11 3 (0.77%) Apache Spark
11 3 (0.77%) CMS
11 3 (0.77%) nginx
12 2 (0.51%) BizTalk Server
13 1 (0.26%) Moodle
13 1 (0.26%) SAS
13 1 (0.26%) Tomcat
Applications
1 7 (1.80%) Microsoft Office
Business Applications
1 1 (0.26%) Distributed Ledger
1 1 (0.26%) Salesforce.com CRM
Cloud Services
1 136 (34.96%) Microsoft Azure
2 82 (21.08%) Amazon AWS
3 44 (11.31%) Office 365
4 31 (7.97%) IaaS
5 26 (6.68%) SaaS
6 25 (6.43%) AWS CloudFormation
7 24 (6.17%) Amazon EC2
8 23 (5.91%) Amazon ELB
9 21 (5.40%) GitHub
9 21 (5.40%) Google Cloud Platform
10 17 (4.37%) Amazon ElastiCache
10 17 (4.37%) Route 53
11 8 (2.06%) Azure Active Directory
11 8 (2.06%) PaaS
12 7 (1.80%) Amazon S3
13 6 (1.54%) Amazon EMR
14 5 (1.29%) Cloud Computing
15 4 (1.03%) Amazon Kinesis
15 4 (1.03%) Cloudflare
15 4 (1.03%) Mimecast
Communications & Networking
1 79 (20.31%) SAN
2 59 (15.17%) Firewall
3 52 (13.37%) DHCP
4 44 (11.31%) TCP/IP
5 43 (11.05%) DNS
6 40 (10.28%) VPN
7 37 (9.51%) NAS
8 21 (5.40%) Internet
9 20 (5.14%) HTTP
10 15 (3.86%) WAN
11 13 (3.34%) Skype
12 12 (3.08%) Cisco ASA
12 12 (3.08%) LAN
13 10 (2.57%) iSCSI
13 10 (2.57%) VLAN
14 9 (2.31%) Remote Desktop
15 8 (2.06%) Cisco Firepower
15 8 (2.06%) Cisco ISE
15 8 (2.06%) NetScaler
16 6 (1.54%) Sourcefire
Database & Business Intelligence
1 231 (59.38%) SQL Server
2 71 (18.25%) SQL Server Integration Services
3 55 (14.14%) Relational Database
4 54 (13.88%) SQL Server Reporting Services
5 53 (13.62%) SQL Server 2008
6 43 (11.05%) Oracle Database
7 39 (10.03%) SQL Server 2014
8 36 (9.25%) MySQL
8 36 (9.25%) PostgreSQL
8 36 (9.25%) SQL Server Analysis Services
9 29 (7.46%) SQL Server 2012
9 29 (7.46%) SQL Server 2016
10 21 (5.40%) NoSQL
10 21 (5.40%) Redis
11 19 (4.88%) RDBMS
12 18 (4.63%) Amazon RDS
13 17 (4.37%) Data Warehouse
13 17 (4.37%) Event Store
14 15 (3.86%) Big Data
15 13 (3.34%) MongoDB
Development Applications
1 34 (8.74%) TeamCity
2 28 (7.20%) Jenkins
3 22 (5.66%) Octopus Deploy
4 17 (4.37%) JIRA
5 16 (4.11%) Git (software)
6 12 (3.08%) Atlassian Bamboo
7 10 (2.57%) Subversion
8 7 (1.80%) Team Foundation Server
9 6 (1.54%) Visual Studio
10 4 (1.03%) Maven
11 3 (0.77%) git-flow
11 3 (0.77%) Travis CI
11 3 (0.77%) Visual Studio Team System
11 3 (0.77%) webpack
12 2 (0.51%) Cucumber
12 2 (0.51%) Mocha
12 2 (0.51%) MSI
13 1 (0.26%) Bitbucket
13 1 (0.26%) Hudson
General
1 116 (29.82%) Finance
2 35 (9.00%) Banking
3 15 (3.86%) Retail
4 7 (1.80%) Advertising
5 6 (1.54%) Marketing
6 3 (0.77%) Law
6 3 (0.77%) Legal
6 3 (0.77%) Publishing
6 3 (0.77%) Telecoms
7 2 (0.51%) Back Office
7 2 (0.51%) Games
8 1 (0.26%) Financial Institution
8 1 (0.26%) Investment Banking
Job Titles
1 168 (43.19%) DBA
2 129 (33.16%) SQL DBA
3 97 (24.94%) Administrator
4 78 (20.05%) SQL Server DBA
5 62 (15.94%) Infrastructure Engineer
6 46 (11.83%) Senior DBA
7 26 (6.68%) Senior SQL DBA
8 24 (6.17%) Oracle DBA
9 21 (5.40%) DevOps Engineer
9 21 (5.40%) Support Engineer
10 20 (5.14%) AWS DevOps
10 20 (5.14%) Azure Engineer
10 20 (5.14%) Systems Engineer
11 19 (4.88%) PostgreSQL DBA
11 19 (4.88%) Senior Oracle DBA
12 18 (4.63%) Microsoft Infrastructure Engineer
13 17 (4.37%) Microsoft Engineer
14 16 (4.11%) Architect
15 15 (3.86%) Senior Infrastructure Engineer
16 14 (3.60%) 3rd Line Engineer
Libraries, Frameworks & Software Standards
1 25 (6.43%) RabbitMQ
2 22 (5.66%) .NET
3 20 (5.14%) ASP.NET
3 20 (5.14%) HTML
4 19 (4.88%) Ajax
5 18 (4.63%) REST
6 17 (4.37%) .NET Framework
6 17 (4.37%) Elastic Stack
7 11 (2.83%) Flash
7 11 (2.83%) Web Services
8 9 (2.31%) Kafka
9 8 (2.06%) 802.1X
10 7 (1.80%) Middleware
11 6 (1.54%) ActiveMQ
12 5 (1.29%) Spring
13 4 (1.03%) Akka
13 4 (1.03%) CSS
13 4 (1.03%) LAMP
13 4 (1.03%) Memcached
13 4 (1.03%) TensorFlow
Miscellaneous
1 103 (26.48%) Replication
2 39 (10.03%) Data Centre
3 27 (6.94%) Analytical Skills
4 12 (3.08%) Computer Science
5 9 (2.31%) Hedge funds
5 9 (2.31%) Private Cloud
6 8 (2.06%) Fintech
7 7 (1.80%) Linux Command Line
7 7 (1.80%) Public Cloud
7 7 (1.80%) Self-Motivation
8 6 (1.54%) EMC VMAX
8 6 (1.54%) EMC VNX
9 5 (1.29%) Algorithms
9 5 (1.29%) Greenfield Project
10 4 (1.03%) iPhone
10 4 (1.03%) Management Information System
10 4 (1.03%) PKI
11 3 (0.77%) Enterprise Software
11 3 (0.77%) N-Tier
11 3 (0.77%) VxBlock/Vblock
Operating Systems
1 184 (47.30%) Windows
2 135 (34.70%) Linux
3 108 (27.76%) Windows Server
4 73 (18.77%) Red Hat Enterprise Linux
5 57 (14.65%) Windows Server 2008
6 44 (11.31%) Windows Server 2012
7 25 (6.43%) CentOS
8 20 (5.14%) Ubuntu
9 16 (4.11%) Windows 10
10 15 (3.86%) Unix
11 14 (3.60%) Oracle Linux
12 9 (2.31%) Windows 7
13 7 (1.80%) Solaris
14 6 (1.54%) Windows Server 2003
15 5 (1.29%) VMS
15 5 (1.29%) Windows 8
16 3 (0.77%) SUSE
17 2 (0.51%) Apple iOS
17 2 (0.51%) Debian
18 1 (0.26%) FreeBSD
Processes & Methodologies
1 171 (43.96%) High Availability
2 96 (24.68%) Disaster Recovery
3 87 (22.37%) ITIL
4 83 (21.34%) Performance Tuning
5 74 (19.02%) Infrastructure Engineering
6 69 (17.74%) DevOps
7 60 (15.42%) Capacity Planning
8 53 (13.62%) Agile Software Development
9 52 (13.37%) Continuous Integration
10 44 (11.31%) Performance Optimisation
11 42 (10.80%) Migration
12 41 (10.54%) Runbook
13 39 (10.03%) Change Control
14 35 (9.00%) Database Security
14 35 (9.00%) Load Balancing
15 34 (8.74%) Problem-Solving
16 33 (8.48%) Proactive Monitoring
17 32 (8.23%) Configuration Management
18 31 (7.97%) Capacity Management
19 29 (7.46%) Trend Analysis
Programming Languages
1 229 (58.87%) SQL
2 84 (21.59%) PowerShell
3 81 (20.82%) T-SQL
4 72 (18.51%) Python
5 37 (9.51%) C#
6 29 (7.46%) JavaScript
7 27 (6.94%) Bash Shell
7 27 (6.94%) Java
8 20 (5.14%) Perl
9 14 (3.60%) Bourne shell
9 14 (3.60%) Korn
10 11 (2.83%) Go
11 9 (2.31%) Ruby
12 6 (1.54%) PHP
12 6 (1.54%) Scala
13 5 (1.29%) PL/SQL
13 5 (1.29%) Shell Script
14 4 (1.03%) Java 8
14 4 (1.03%) VB
15 3 (0.77%) Haskell
Qualifications
1 29 (7.46%) Microsoft Certification
2 22 (5.66%) MCSE
3 20 (5.14%) Degree
4 17 (4.37%) MCSA
5 13 (3.34%) VMware Certified Professional (VCP)
6 12 (3.08%) Cisco Certification
7 10 (2.57%) Computer Science Degree
8 9 (2.31%) AWS Certification
8 9 (2.31%) CCNP
8 9 (2.31%) MCP
9 7 (1.80%) ITIL Certification
10 5 (1.29%) MCITP
10 5 (1.29%) VCP5
11 4 (1.03%) CCNA
11 4 (1.03%) Security Cleared
12 3 (0.77%) RHCE
13 2 (0.51%) CCIE
13 2 (0.51%) DV Cleared
13 2 (0.51%) Linux+ Certification
13 2 (0.51%) MCTS
Quality Assurance & Compliance
1 23 (5.91%) QA
2 8 (2.06%) SLA
3 5 (1.29%) GDPR
4 2 (0.51%) PSD2
5 1 (0.26%) Data Quality
5 1 (0.26%) ISO 9001
5 1 (0.26%) Sarbanes-Oxley
System Software
1 141 (36.25%) Active Directory
2 75 (19.28%) VMware Infrastructure
3 45 (11.57%) Hyper-V
4 39 (10.03%) Docker
5 22 (5.66%) VMware ESXi
6 20 (5.14%) Oracle RAC
7 17 (4.37%) vSphere
8 15 (3.86%) XenApp
9 11 (2.83%) Firmware
10 9 (2.31%) Veritas Cluster Server
10 9 (2.31%) XenDesktop
11 8 (2.06%) Virtual Machines
12 4 (1.03%) Virtual Servers
13 3 (0.77%) NFS
13 3 (0.77%) vCloud
14 2 (0.51%) BitLocker
14 2 (0.51%) DFS Replication
14 2 (0.51%) Microsoft App-V
14 2 (0.51%) Microsoft Virtual Server
15 1 (0.26%) HDFS
Systems Management
1 70 (17.99%) Failover Clustering
2 67 (17.22%) Opscode Chef
3 66 (16.97%) Ansible
4 60 (15.42%) Microsoft Clustering
5 41 (10.54%) SCOM
6 36 (9.25%) SCCM
7 31 (7.97%) Puppet
8 17 (4.37%) Kibana
8 17 (4.37%) logstash
8 17 (4.37%) Packer
9 15 (3.86%) Data Guard
9 15 (3.86%) Kubernetes
9 15 (3.86%) Terraform
10 11 (2.83%) Prometheus
10 11 (2.83%) SCOrch
11 9 (2.31%) Docker Swarm
11 9 (2.31%) Nagios
12 7 (1.80%) WSUS
13 6 (1.54%) Backup Exec
13 6 (1.54%) ZABBIX
Vendors
1 127 (32.65%) Microsoft
2 121 (31.11%) VMware
3 74 (19.02%) Red Hat
4 65 (16.71%) Oracle
5 41 (10.54%) Cisco
6 39 (10.03%) HP
7 31 (7.97%) Citrix
8 19 (4.88%) CommVault
9 17 (4.37%) Google
10 14 (3.60%) Veeam
11 13 (3.34%) SAP
12 12 (3.08%) RedGate
12 12 (3.08%) Symantec
13 11 (2.83%) EMC
14 8 (2.06%) NetApp
15 7 (1.80%) IBM
15 7 (1.80%) SolarWinds
16 6 (1.54%) ScanSafe
17 5 (1.29%) Splunk
17 5 (1.29%) WatchGuard