Period
to 22 January 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for High Availability skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited High Availability over the 6 months to 22 January 2018 with a comparison to the same period in the previous 2 years.

High Availability
Central London > City of London
6 months to
22 Jan 2018
Same period 2017 Same period 2016
Rank 200 194 167
Rank change year-on-year -6 -27 +1
Permanent jobs citing High Availability 135 139 239
As % of all permanent IT jobs advertised in the City of London 1.29% 1.32% 1.69%
As % of the Processes & Methodologies category 1.42% 1.48% 1.88%
Number of salaries quoted 126 130 228
City of London median annual salary £65,000 £62,500 £65,000
Median salary % change year-on-year +4.00% -3.85% +13.04%
10th Percentile £49,000 £44,750 £46,250
90th Percentile £84,375 £111,375 £100,000
Central London median annual salary £62,500 £60,000 £63,500
% change year-on-year +4.17% -5.51% +10.43%

High Availability is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 9,514 9,378 12,682
As % of all permanent IT jobs advertised in the City of London 90.90% 89.20% 89.69%
Number of salaries quoted 8,468 8,536 11,165
City of London median annual salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.35% +4.55%
10th Percentile £36,250 £36,250 £35,000
90th Percentile £95,000 £92,500 £90,000
Central London median annual salary £60,000 £57,500 £57,500
% change year-on-year +4.35% - +4.55%

High Availability
Job Vacancy Trend in the City of London

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

Job vacancy trend for High Availability in the City of London

High Availability
Salary Trend in the City of London

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

Salary trend for High Availability in the City of London

High Availability
Salary Histogram in the City of London

The salary distribution of IT jobs citing High Availability in the City of London over the 6 months to 22 January 2018.

Salary histogram for High Availability in the City of London

For the 6 months to 22 January 2018, IT jobs citing High Availability 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 High Availability.

1 65 (48.15%) SQL Server
2 58 (42.96%) SQL
3 51 (37.78%) Microsoft
4 47 (34.81%) SQL Server Reporting Services
5 46 (34.07%) SQL Server Integration Services
6 37 (27.41%) Finance
7 35 (25.93%) Microsoft Azure
8 31 (22.96%) Linux
9 30 (22.22%) ITIL
10 29 (21.48%) SQL Server 2008
11 28 (20.74%) Data Management
12 27 (20.00%) DevOps
13 26 (19.26%) Microsoft Certification
14 25 (18.52%) Python
15 24 (17.78%) SQL Server 2012
16 22 (16.30%) Business Intelligence
16 22 (16.30%) Cloud Computing
17 21 (15.56%) Agile Software Development
17 21 (15.56%) IaaS
17 21 (15.56%) Analytics
17 21 (15.56%) Puppet
18 20 (14.81%) User Experience
18 20 (14.81%) SQL Server 2014
18 20 (14.81%) Disaster Recovery
19 19 (14.07%) Data Modelling
19 19 (14.07%) Performance Monitoring
20 18 (13.33%) Docker
20 18 (13.33%) Amazon AWS
20 18 (13.33%) Performance Optimisation
20 18 (13.33%) Physical Data Model

High Availability
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 14 (10.37%) BizTalk Server
2 12 (8.89%) Confluence
3 10 (7.41%) Apache
4 5 (3.70%) Apache Spark
5 4 (2.96%) IIS
6 3 (2.22%) nginx
6 3 (2.22%) SharePoint
7 2 (1.48%) Exchange Server 2013
7 2 (1.48%) MS Exchange
7 2 (1.48%) Tomcat
8 1 (0.74%) Elasticsearch
8 1 (0.74%) JBoss
8 1 (0.74%) OpenStack
Business Applications
1 1 (0.74%) Dynamics CRM
1 1 (0.74%) SAP CO
1 1 (0.74%) SAP FI
1 1 (0.74%) SAP FI/CO
1 1 (0.74%) SAP Hybris
1 1 (0.74%) Summit
Cloud Services
1 35 (25.93%) Microsoft Azure
2 22 (16.30%) Cloud Computing
3 21 (15.56%) IaaS
4 18 (13.33%) Amazon AWS
5 15 (11.11%) PaaS
6 12 (8.89%) Azure Active Directory
7 10 (7.41%) Office 365
8 2 (1.48%) Google Cloud Platform
8 2 (1.48%) OpenShift
8 2 (1.48%) SaaS
9 1 (0.74%) Amazon ELB
9 1 (0.74%) GitHub
9 1 (0.74%) IBM Cloud
9 1 (0.74%) Oracle CX
9 1 (0.74%) Rackspace Cloud
9 1 (0.74%) SoftLayer
Communications & Networking
1 17 (12.59%) Firewall
1 17 (12.59%) VPN
2 15 (11.11%) DHCP
2 15 (11.11%) DNS
3 13 (9.63%) WAN
4 11 (8.15%) DMZ
5 8 (5.93%) SAN
6 5 (3.70%) BGP
6 5 (3.70%) MPLS
6 5 (3.70%) OSPF
7 4 (2.96%) Fibre Channel
7 4 (2.96%) HSRP
7 4 (2.96%) HTTP
7 4 (2.96%) iSCSI
8 3 (2.22%) Cisco Nexus
8 3 (2.22%) GLBP
8 3 (2.22%) Junos
8 3 (2.22%) SNMP
8 3 (2.22%) VLAN
8 3 (2.22%) VPLS
Database & Business Intelligence
1 65 (48.15%) SQL Server
2 47 (34.81%) SQL Server Reporting Services
3 46 (34.07%) SQL Server Integration Services
4 29 (21.48%) SQL Server 2008
5 24 (17.78%) SQL Server 2012
6 20 (14.81%) SQL Server 2014
7 12 (8.89%) Big Data
8 8 (5.93%) MySQL
8 8 (5.93%) NoSQL
9 7 (5.19%) Oracle Database
10 6 (4.44%) Oracle Database 11g
10 6 (4.44%) Oracle Database 12c
11 5 (3.70%) Hadoop
11 5 (3.70%) PostgreSQL
11 5 (3.70%) SQL Server 2016
11 5 (3.70%) Sybase ASE
12 4 (2.96%) Blockchain
12 4 (2.96%) MongoDB
12 4 (2.96%) Redis
13 3 (2.22%) SQL Server Analysis Services
Development Applications
1 13 (9.63%) Git (software)
2 12 (8.89%) JIRA
3 11 (8.15%) Atlassian Bamboo
3 11 (8.15%) Octopus Deploy
4 5 (3.70%) Jenkins
5 1 (0.74%) LINQPad
5 1 (0.74%) PostCSS
5 1 (0.74%) Vagrant
General
1 37 (27.41%) Finance
2 5 (3.70%) Retail
3 3 (2.22%) Front Office
4 2 (1.48%) Banking
4 2 (1.48%) Financial Institution
4 2 (1.48%) Law
5 1 (0.74%) Investment Banking
5 1 (0.74%) Legal
5 1 (0.74%) Telecoms
Job Titles
1 45 (33.33%) DBA
2 42 (31.11%) SQL DBA
3 29 (21.48%) Developer
3 29 (21.48%) SQL Server DBA
4 23 (17.04%) DevOps Engineer
5 22 (16.30%) Administrator
6 16 (11.85%) Cloud Engineer
6 16 (11.85%) Senior DBA
7 15 (11.11%) Senior SQL DBA
8 12 (8.89%) Django Developer
9 11 (8.15%) Azure DevOps
9 11 (8.15%) Azure DevOps Engineer
9 11 (8.15%) Azure Engineer
9 11 (8.15%) Cloud Infrastructure Engineer
9 11 (8.15%) Cloud Specialist
9 11 (8.15%) DevOps Specialist
9 11 (8.15%) Infrastructure Engineer
9 11 (8.15%) Infrastructure Specialist
9 11 (8.15%) Senior SQL Server DBA
10 8 (5.93%) Senior Developer
Libraries, Frameworks & Software Standards
1 14 (10.37%) Django
2 12 (8.89%) .NET
2 12 (8.89%) Celery
3 8 (5.93%) REST
4 6 (4.44%) Middleware
4 6 (4.44%) Web Services
5 4 (2.96%) RESTful
6 3 (2.22%) JSON
7 2 (1.48%) Elastic Stack
7 2 (1.48%) LAMP
7 2 (1.48%) LEMP Stack
7 2 (1.48%) WebSockets
8 1 (0.74%) Boost C++ Libraries
8 1 (0.74%) Entity Framework
8 1 (0.74%) FreeSWITCH
8 1 (0.74%) Memcached
8 1 (0.74%) Node.js
8 1 (0.74%) React
8 1 (0.74%) Sphinx
8 1 (0.74%) SQLAlchemy
Miscellaneous
1 20 (14.81%) User Experience
2 17 (12.59%) Replication
3 11 (8.15%) Clustering
4 8 (5.93%) Data Centre
5 5 (3.70%) Computer Science
6 4 (2.96%) Analytical Skills
6 4 (2.96%) Bitcoin
7 3 (2.22%) Hybrid Cloud
8 2 (1.48%) Mainframe
8 2 (1.48%) Management Information System
8 2 (1.48%) Public Cloud
9 1 (0.74%) Blog
9 1 (0.74%) CLARiiON
9 1 (0.74%) Client/Server
9 1 (0.74%) Credit Risk
9 1 (0.74%) Foreign Exchange (FX)
9 1 (0.74%) Market Risk
9 1 (0.74%) N-Tier
9 1 (0.74%) Private Cloud
9 1 (0.74%) RSA SecurID
Operating Systems
1 31 (22.96%) Linux
2 11 (8.15%) Unix
2 11 (8.15%) Windows
3 10 (7.41%) Apple iOS
4 4 (2.96%) Red Hat Enterprise Linux
4 4 (2.96%) Windows Server
5 3 (2.22%) CentOS
6 2 (1.48%) AIX
6 2 (1.48%) Solaris
6 2 (1.48%) Windows Server 2008
6 2 (1.48%) Windows Server 2012
7 1 (0.74%) Data ONTAP
7 1 (0.74%) DC/OS
7 1 (0.74%) Mac OS
7 1 (0.74%) VMS
7 1 (0.74%) Windows 10
7 1 (0.74%) Windows 7
7 1 (0.74%) Windows Server 2003
Processes & Methodologies
1 30 (22.22%) ITIL
2 28 (20.74%) Data Management
3 27 (20.00%) DevOps
4 22 (16.30%) Business Intelligence
5 21 (15.56%) Agile Software Development
5 21 (15.56%) Analytics
6 20 (14.81%) Disaster Recovery
7 19 (14.07%) Data Modelling
7 19 (14.07%) Performance Monitoring
8 18 (13.33%) Performance Optimisation
8 18 (13.33%) Physical Data Model
9 16 (11.85%) Continuous Integration
10 14 (10.37%) ETL
10 14 (10.37%) Proactive Management
11 12 (8.89%) Performance Tuning
12 11 (8.15%) BDD
12 11 (8.15%) Continuous Delivery
12 11 (8.15%) TDD
13 10 (7.41%) Change Management
13 10 (7.41%) Mentoring
Programming Languages
1 58 (42.96%) SQL
2 25 (18.52%) Python
3 17 (12.59%) Java
4 12 (8.89%) JavaScript
5 11 (8.15%) Bash Shell
6 9 (6.67%) T-SQL
7 8 (5.93%) Apple Swift
7 8 (5.93%) Objective-C
7 8 (5.93%) Perl
8 6 (4.44%) PowerShell
9 5 (3.70%) Ruby
10 3 (2.22%) C
10 3 (2.22%) C++
11 2 (1.48%) C#
11 2 (1.48%) Go
11 2 (1.48%) PHP
12 1 (0.74%) ES7
12 1 (0.74%) Scala
12 1 (0.74%) Shell Script
12 1 (0.74%) VB
Qualifications
1 26 (19.26%) Microsoft Certification
2 18 (13.33%) MCITP
3 8 (5.93%) Degree
4 4 (2.96%) Computer Science Degree
5 3 (2.22%) ITIL Certification
6 2 (1.48%) Master's Degree
7 1 (0.74%) AWS Certification
7 1 (0.74%) CCDP
7 1 (0.74%) CCNP
7 1 (0.74%) Cisco Certification
7 1 (0.74%) Numerate Degree
Quality Assurance & Compliance
1 5 (3.70%) SLA
2 3 (2.22%) QA
3 1 (0.74%) PCI DSS
System Software
1 18 (13.33%) Docker
2 16 (11.85%) Active Directory
3 5 (3.70%) VMware Infrastructure
4 3 (2.22%) Virtual Machines
4 3 (2.22%) XenDesktop
5 2 (1.48%) Firmware
5 2 (1.48%) Hyper-V
5 2 (1.48%) NFS
5 2 (1.48%) PowerHA
5 2 (1.48%) vSphere
6 1 (0.74%) Apache ZooKeeper
6 1 (0.74%) BitLocker
6 1 (0.74%) HDFS
6 1 (0.74%) iptables
6 1 (0.74%) Kamailio
6 1 (0.74%) KVM
6 1 (0.74%) Varnish
6 1 (0.74%) VMware ESXi
6 1 (0.74%) XenApp
Systems Management
1 21 (15.56%) Puppet
2 12 (8.89%) Ansible
3 7 (5.19%) Opscode Chef
4 4 (2.96%) Failover Clustering
4 4 (2.96%) Kubernetes
5 3 (2.22%) HAProxy
6 2 (1.48%) Grafana
6 2 (1.48%) NetBackup
7 1 (0.74%) Graphite
7 1 (0.74%) HP Data Protector
7 1 (0.74%) Mesos
7 1 (0.74%) Nagios
7 1 (0.74%) Packer
7 1 (0.74%) Riemann
7 1 (0.74%) SCCM
7 1 (0.74%) SCOM
7 1 (0.74%) Simpana
7 1 (0.74%) Systems Management Server (SMS)
7 1 (0.74%) Terraform
7 1 (0.74%) vMotion
Vendors
1 51 (37.78%) Microsoft
2 13 (9.63%) IBM
3 11 (8.15%) Splunk
4 9 (6.67%) Oracle
5 8 (5.93%) Cisco
5 8 (5.93%) SAP
5 8 (5.93%) Sybase
5 8 (5.93%) VMware
6 5 (3.70%) Citrix
6 5 (3.70%) Juniper
6 5 (3.70%) Red Hat
7 3 (2.22%) HP
7 3 (2.22%) NetApp
8 2 (1.48%) Brocade
8 2 (1.48%) Dell
8 2 (1.48%) Google
8 2 (1.48%) Infoblox
8 2 (1.48%) Rackspace
8 2 (1.48%) Veritas
9 1 (0.74%) hybris