Period
to 15 December 2018

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 15 December 2018 with a comparison to the same period over the previous 2 years.

Clustering
Central London > City of London
6 months to
15 Dec 2018
Same period 2017 Same period 2016
Rank 280 260 253
Rank change year-on-year -20 -7 -9
Permanent jobs citing Clustering 62 71 89
As % of all permanent IT jobs advertised in the City of London 0.59% 0.68% 0.79%
As % of the Miscellaneous category 1.28% 1.49% 1.71%
Number of salaries quoted 54 69 79
City of London median annual salary £58,750 £59,000 £57,500
Median salary % change year-on-year -0.42% +2.61% -
10th Percentile £41,250 £46,850 £36,500
90th Percentile £86,750 £92,500 £76,750
Central London median annual salary £52,500 £57,000 £55,000
% change year-on-year -7.89% +3.64% -2.22%

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 4,851 4,753 5,201
As % of all permanent IT jobs advertised in the City of London 45.90% 45.70% 45.94%
Number of salaries quoted 4,346 4,262 4,741
City of London median annual salary £65,000 £60,000 £57,500
Median salary % change year-on-year +8.33% +4.35% -
10th Percentile £40,750 £36,250 £33,750
90th Percentile £95,000 £97,500 £92,500
Central London median annual salary £65,000 £60,000 £57,500
% change year-on-year +8.33% +4.35% -

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 15 December 2018.

Salary histogram for Clustering in the City of London

Clustering
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clustering within the City of London region over the 6 months to 15 December 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
London Bridge - 1 £57,500 -
Clustering
Central London

For the 6 months to 15 December 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 City of London region with a requirement for Clustering.

1 31 (50.00%) Windows
2 23 (37.10%) Finance
3 21 (33.87%) SQL
4 20 (32.26%) Linux
4 20 (32.26%) DevOps
5 17 (27.42%) Python
5 17 (27.42%) Microsoft
5 17 (27.42%) VMware
6 16 (25.81%) Active Directory
6 16 (25.81%) SAN
6 16 (25.81%) VMware Infrastructure
6 16 (25.81%) Amazon AWS
6 16 (25.81%) Docker
7 15 (24.19%) Windows Server
7 15 (24.19%) Microsoft Azure
7 15 (24.19%) SQL Server
8 14 (22.58%) Java
9 13 (20.97%) DNS
10 12 (19.35%) TCP/IP
10 12 (19.35%) ITIL
10 12 (19.35%) PowerShell
11 11 (17.74%) VLAN
11 11 (17.74%) Ruby
11 11 (17.74%) Load Balancing
11 11 (17.74%) Amazon RDS
11 11 (17.74%) HP
11 11 (17.74%) Backup Exec
11 11 (17.74%) Infrastructure Engineering
12 10 (16.13%) Replication
12 10 (16.13%) Configuration Management

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 (12.90%) Exchange Server 2013
2 7 (11.29%) MS Exchange
3 6 (9.68%) Exchange Server 2010
4 5 (8.06%) SharePoint
5 4 (6.45%) Apache Spark
6 3 (4.84%) Apache
6 3 (4.84%) IIS
6 3 (4.84%) SharePoint 2013
7 2 (3.23%) Office Communications Server
7 2 (3.23%) Skype for Business
8 1 (1.61%) Apache Solr
8 1 (1.61%) Elasticsearch
8 1 (1.61%) nginx
8 1 (1.61%) Tomcat
Cloud Services
1 16 (25.81%) Amazon AWS
2 15 (24.19%) Microsoft Azure
3 7 (11.29%) Office 365
4 6 (9.68%) Mimecast
5 5 (8.06%) Amazon EC2
5 5 (8.06%) Amazon ELB
5 5 (8.06%) Amazon EMR
5 5 (8.06%) Amazon S3
6 4 (6.45%) IaaS
7 2 (3.23%) PaaS
8 1 (1.61%) Google Cloud Platform
Communications & Networking
1 16 (25.81%) SAN
2 13 (20.97%) DNS
3 12 (19.35%) TCP/IP
4 11 (17.74%) VLAN
5 10 (16.13%) DHCP
6 9 (14.52%) Firewall
6 9 (14.52%) LAN
6 9 (14.52%) VPN
6 9 (14.52%) WAN
7 7 (11.29%) NetScaler
7 7 (11.29%) Remote Desktop
8 6 (9.68%) DKIM
8 6 (9.68%) Internet
8 6 (9.68%) IPsec
9 5 (8.06%) MPLS
10 4 (6.45%) iSCSI
11 3 (4.84%) Intranet
11 3 (4.84%) Wireless
12 2 (3.23%) PBX
12 2 (3.23%) SSL
Database & Business Intelligence
1 15 (24.19%) SQL Server
2 11 (17.74%) Amazon RDS
3 9 (14.52%) MySQL
4 7 (11.29%) MongoDB
5 6 (9.68%) MariaDB
5 6 (9.68%) NoSQL
5 6 (9.68%) Relational Database
5 6 (9.68%) SQL Server Analysis Services
6 5 (8.06%) SQL Server Reporting Services
7 4 (6.45%) Big Data
7 4 (6.45%) Oracle BI EE
8 3 (4.84%) SQL Server Integration Services
8 3 (4.84%) Text Mining
9 2 (3.23%) Hadoop
9 2 (3.23%) InfluxDB
9 2 (3.23%) OpenTSDB
9 2 (3.23%) PostgreSQL
9 2 (3.23%) RDBMS
9 2 (3.23%) SQL Server 2012
9 2 (3.23%) SQL Server 2016
Development Applications
1 7 (11.29%) Git (software)
2 6 (9.68%) Jenkins
3 5 (8.06%) Subversion
4 2 (3.23%) Octopus Deploy
4 2 (3.23%) Team Foundation Server
4 2 (3.23%) TeamCity
5 1 (1.61%) JIRA
5 1 (1.61%) JMeter
5 1 (1.61%) Mercurial
5 1 (1.61%) Xdebug
General
1 23 (37.10%) Finance
2 6 (9.68%) Banking
3 3 (4.84%) Law
4 1 (1.61%) Advertising
4 1 (1.61%) Financial Institution
4 1 (1.61%) German Language
4 1 (1.61%) Marketing
4 1 (1.61%) Spanish Language
Job Titles
1 9 (14.52%) DevOps Engineer
2 7 (11.29%) DBA
2 7 (11.29%) Security Engineer
3 6 (9.68%) 3rd Line Engineer
3 6 (9.68%) Administrator
3 6 (9.68%) Developer
3 6 (9.68%) IT Engineer
3 6 (9.68%) IT Security Engineer
3 6 (9.68%) Linux Engineer
3 6 (9.68%) SQL DBA
3 6 (9.68%) SQL Server DBA
3 6 (9.68%) Support Engineer
4 5 (8.06%) 3rd Line Support
4 5 (8.06%) 3rd Line Support Engineer
4 5 (8.06%) Architect
4 5 (8.06%) Data Scientist
4 5 (8.06%) Field Engineer
4 5 (8.06%) Lead DevOps
4 5 (8.06%) Lead DevOps Engineer
4 5 (8.06%) Linux Scripter
Libraries, Frameworks & Software Standards
1 6 (9.68%) RabbitMQ
1 6 (9.68%) TensorFlow
2 5 (8.06%) .NET
2 5 (8.06%) ActiveMQ
2 5 (8.06%) Kafka
3 4 (6.45%) XGBoost
4 3 (4.84%) Akka
4 3 (4.84%) LDAP
4 3 (4.84%) Natural Language Processing
4 3 (4.84%) RxJava
5 2 (3.23%) ASP.NET
5 2 (3.23%) CoreNLP
6 1 (1.61%) 802.1X
6 1 (1.61%) Apache Camel
6 1 (1.61%) beanstalkd
6 1 (1.61%) CSS
6 1 (1.61%) Keras
6 1 (1.61%) LEMP Stack
6 1 (1.61%) PySpark
6 1 (1.61%) scikit-learn
Miscellaneous
1 10 (16.13%) Replication
2 9 (14.52%) Data Centre
3 5 (8.06%) Linux Command Line
4 3 (4.84%) Algorithms
4 3 (4.84%) Analytical Skills
4 3 (4.84%) EMC VNX
4 3 (4.84%) Hedge funds
5 2 (3.23%) HP StoreVirtual
5 2 (3.23%) Public Cloud
6 1 (1.61%) Enterprise Software
6 1 (1.61%) Fintech
6 1 (1.61%) Hybrid Cloud
6 1 (1.61%) Management Information System
6 1 (1.61%) Private Cloud
6 1 (1.61%) Self-Motivation
Operating Systems
1 31 (50.00%) Windows
2 20 (32.26%) Linux
3 15 (24.19%) Windows Server
4 7 (11.29%) Windows 10
4 7 (11.29%) Windows Server 2008
4 7 (11.29%) Windows Server 2012
5 6 (9.68%) Windows 7
5 6 (9.68%) Windows 8
6 2 (3.23%) CentOS
6 2 (3.23%) Unix
7 1 (1.61%) Red Hat Enterprise Linux
7 1 (1.61%) Solaris
Processes & Methodologies
1 20 (32.26%) DevOps
2 12 (19.35%) ITIL
3 11 (17.74%) Infrastructure Engineering
3 11 (17.74%) Load Balancing
4 10 (16.13%) Configuration Management
4 10 (16.13%) High Availability
5 8 (12.90%) Service Management
5 8 (12.90%) Task Automation
6 7 (11.29%) Data Science
6 7 (11.29%) Deep Learning
6 7 (11.29%) Kalman Filter
6 7 (11.29%) Machine Learning
6 7 (11.29%) Performance Monitoring
6 7 (11.29%) Performance Tuning
7 6 (9.68%) Capacity Planning
7 6 (9.68%) Cybersecurity
7 6 (9.68%) Network Load Balancing
7 6 (9.68%) SQL Optimisation
8 5 (8.06%) Computer Science
8 5 (8.06%) Time Management
Programming Languages
1 21 (33.87%) SQL
2 17 (27.42%) Python
3 14 (22.58%) Java
4 12 (19.35%) PowerShell
5 11 (17.74%) Ruby
6 9 (14.52%) Bash Shell
7 6 (9.68%) JavaScript
7 6 (9.68%) Scala
8 5 (8.06%) Go
9 4 (6.45%) T-SQL
9 4 (6.45%) VBScript
10 2 (3.23%) C#
10 2 (3.23%) Haskell
10 2 (3.23%) PHP
10 2 (3.23%) VB
11 1 (1.61%) Perl
Qualifications
1 8 (12.90%) Degree
2 5 (8.06%) HND
3 4 (6.45%) Microsoft Certification
4 3 (4.84%) Computer Science Degree
4 3 (4.84%) RHCSA
5 2 (3.23%) Linux+ Certification
5 2 (3.23%) MCP
5 2 (3.23%) PhD
5 2 (3.23%) VMware Certified Professional (VCP)
6 1 (1.61%) CCNA
6 1 (1.61%) Cisco Certification
6 1 (1.61%) Citrix Certification
6 1 (1.61%) MCSA
6 1 (1.61%) MCSE
6 1 (1.61%) RHCE
Quality Assurance & Compliance
1 1 (1.61%) ISO/IEC 27001
System Software
1 16 (25.81%) Active Directory
1 16 (25.81%) Docker
1 16 (25.81%) VMware Infrastructure
2 9 (14.52%) Hyper-V
3 3 (4.84%) XenApp
4 2 (3.23%) LXC
4 2 (3.23%) Virtual Machines
4 2 (3.23%) VMware ESXi
5 1 (1.61%) Veritas Cluster Server
5 1 (1.61%) XenDesktop
5 1 (1.61%) XenServer
Systems Management
1 11 (17.74%) Backup Exec
2 9 (14.52%) Puppet
3 8 (12.90%) Nagios
3 8 (12.90%) SCOM
4 7 (11.29%) Kubernetes
4 7 (11.29%) Opscode Chef
4 7 (11.29%) Prometheus
5 6 (9.68%) Microsoft Clustering
5 6 (9.68%) SCCM
5 6 (9.68%) Single Sign-On
6 5 (8.06%) Ansible
6 5 (8.06%) Docker Swarm
6 5 (8.06%) Terraform
6 5 (8.06%) ZABBIX
7 2 (3.23%) Grafana
7 2 (3.23%) SCOrch
7 2 (3.23%) Symantec Enterprise Vault
7 2 (3.23%) vCenter Server
8 1 (1.61%) Red Hat Satellite
8 1 (1.61%) Red Hat Spacewalk
Vendors
1 17 (27.42%) Microsoft
1 17 (27.42%) VMware
2 11 (17.74%) HP
3 9 (14.52%) Citrix
4 6 (9.68%) Nimble Storage
5 4 (6.45%) Red Hat
5 4 (6.45%) Siebel
5 4 (6.45%) Symantec
6 3 (4.84%) Cisco
6 3 (4.84%) EMC
6 3 (4.84%) SolarWinds
6 3 (4.84%) Veeam
7 2 (3.23%) Oracle
8 1 (1.61%) Google
8 1 (1.61%) Remedy
8 1 (1.61%) Veritas
8 1 (1.61%) Zend