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 3 months to 27 April 2017 with a comparison to the same period in the previous 2 years.

High Availability
London / City of London
3 months to
27 Apr 2017
Same period 2016 Same period 2015
Rank 145 144 139
Rank change year-on-year -1 -5  
Permanent jobs citing High Availability 84 129 211
As % of all permanent IT jobs advertised in the City of London 1.60% 1.82% 2.00%
As % of the Processes & Methodologies category 1.77% 2.00% 2.26%
Number of salaries quoted 70 111 159
Median salary £65,000 £60,000 £60,000
Median salary % change year-on-year +8.33% -  
90% offered a salary of more than £42,250 £45,000 £46,200
10% offered a salary of more than £75,500 £80,000 £80,000
UK excluding London median salary £45,000 £45,000 £45,000

High Availability is in the process and methodology skills category. The next 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 and methodology skills.

Process & Methodology Skills
City of London
Permanent job vacancies with a requirement for process and methodology skills 4737 6452 9324
As % of all permanent IT job vacancies advertised in the City of London 90.07% 90.86% 88.56%
Number of salaries quoted 4290 5784 7850
Median salary £62,500 £60,000 £57,500
Median salary % change year-on-year +4.16% +4.34%  
90% offered a salary of more than £42,500 £40,000 £37,500
10% offered a salary of more than £85,000 £82,500 £83,000
UK excluding London median salary £45,000 £45,000 £44,000
% change year-on-year - +2.27%  

High Availability
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing High Availability as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

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 3 months to 27 April 2017.

Salary histogram for High Availability in the City of London

For the 6 months to 27 April 2017, 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 59 (37.82%) Finance
2 49 (31.41%) Linux
3 46 (29.49%) Microsoft
4 45 (28.85%) Windows
4 45 (28.85%) SQL Server
5 43 (27.56%) SQL
6 40 (25.64%) Agile Software Development
7 38 (24.36%) VMware
8 34 (21.79%) Disaster Recovery
8 34 (21.79%) Python
9 33 (21.15%) Java
10 32 (20.51%) Oracle
11 31 (19.87%) Clustering
11 31 (19.87%) Degree
11 31 (19.87%) VMware Infrastructure
12 30 (19.23%) Windows Server
13 27 (17.31%) Analytical Skills
13 27 (17.31%) Active Directory
14 26 (16.67%) Unix
15 25 (16.03%) Banking
15 25 (16.03%) DevOps
16 23 (14.74%) ITIL
16 23 (14.74%) SAN
16 23 (14.74%) Red Hat Enterprise Linux
17 22 (14.10%) Cisco
17 22 (14.10%) Configuration Management
18 21 (13.46%) JavaScript
18 21 (13.46%) Puppet
19 20 (12.82%) PowerShell
20 18 (11.54%) Software Engineering

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 13 (8.33%) MS Exchange
2 11 (7.05%) Apache
3 9 (5.77%) Exchange Server 2013
4 8 (5.13%) IIS
5 7 (4.49%) Confluence
5 7 (4.49%) IPython
5 7 (4.49%) SharePoint
6 6 (3.85%) WebLogic
7 5 (3.21%) OpenStack
8 4 (2.56%) nginx
8 4 (2.56%) Tomcat
9 3 (1.92%) Exchange Server 2010
9 3 (1.92%) JBoss
10 2 (1.28%) Apache ServiceMix
10 2 (1.28%) Elasticsearch
10 2 (1.28%) Umbraco
11 1 (0.64%) Cloud Foundry
11 1 (0.64%) Jetty
11 1 (0.64%) SAS
11 1 (0.64%) Skype for Business
Applications
1 4 (2.56%) Microsoft PowerPoint
2 3 (1.92%) Microsoft Excel
2 3 (1.92%) Microsoft Project
2 3 (1.92%) MS Visio
3 2 (1.28%) Microsoft Office
Business Applications
1 4 (2.56%) SAP BPC
2 1 (0.64%) Cognos Business Intelligence
2 1 (0.64%) Dynamics AX
2 1 (0.64%) SAP Oil and Gas
Cloud Services
1 16 (10.26%) Amazon AWS
2 14 (8.97%) Microsoft Azure
3 6 (3.85%) Google Cloud Platform
4 5 (3.21%) PaaS
5 4 (2.56%) AWS CloudFormation
5 4 (2.56%) AWS Elastic Beanstalk
5 4 (2.56%) SaaS
6 3 (1.92%) Rackspace Cloud
7 2 (1.28%) Cloud Computing
7 2 (1.28%) Heroku
7 2 (1.28%) IaaS
7 2 (1.28%) Office 365
7 2 (1.28%) Virtual Private Cloud
8 1 (0.64%) Datadog
8 1 (0.64%) Google Compute Engine
Communications & Networking
1 23 (14.74%) SAN
2 15 (9.62%) Firewall
3 14 (8.97%) VPN
4 13 (8.33%) VoIP
5 10 (6.41%) Network Security
6 9 (5.77%) DNS
7 7 (4.49%) SSL
8 5 (3.21%) SMTP
8 5 (3.21%) VLAN
9 4 (2.56%) Cisco ASA
9 4 (2.56%) DHCP
9 4 (2.56%) TCP/IP
9 4 (2.56%) WAN
10 3 (1.92%) BGP
10 3 (1.92%) DMZ
10 3 (1.92%) Internet
10 3 (1.92%) LDAP
10 3 (1.92%) OSPF
10 3 (1.92%) TACACS
10 3 (1.92%) Wireless
Database & Business Intelligence
1 45 (28.85%) SQL Server
2 17 (10.90%) NoSQL
2 17 (10.90%) SQL Server 2008
3 13 (8.33%) Relational Database
3 13 (8.33%) SQL Server 2005
3 13 (8.33%) SQL Server Integration Services
3 13 (8.33%) SQL Server Reporting Services
4 12 (7.69%) Oracle Database
5 10 (6.41%) RDBMS
6 9 (5.77%) MySQL
7 8 (5.13%) Oracle Database 11g
8 7 (4.49%) MongoDB
9 6 (3.85%) Oracle Database 10g
9 6 (3.85%) SQL Server Analysis Services
10 5 (3.21%) Redis
11 4 (2.56%) BusinessObjects
11 4 (2.56%) Data Warehouse
11 4 (2.56%) PostgreSQL
12 3 (1.92%) InterSystems Cache
12 3 (1.92%) Power BI
Development Applications
1 16 (10.26%) Jenkins
2 9 (5.77%) JIRA
3 7 (4.49%) Git (software)
4 6 (3.85%) Atlassian Bamboo
5 4 (2.56%) JUnit
5 4 (2.56%) Maven
5 4 (2.56%) Subversion
5 4 (2.56%) Visual Studio
6 3 (1.92%) Ant
6 3 (1.92%) Bitbucket
6 3 (1.92%) Eclipse
6 3 (1.92%) FishEye
6 3 (1.92%) IntelliJ
6 3 (1.92%) VSS/SourceSafe
7 2 (1.28%) Cucumber
7 2 (1.28%) Jasmine
7 2 (1.28%) Mockito
7 2 (1.28%) Moq
7 2 (1.28%) Selenium
7 2 (1.28%) WebDriver
General
1 59 (37.82%) Finance
2 25 (16.03%) Banking
3 7 (4.49%) Front Office
4 6 (3.85%) Retail
5 5 (3.21%) Investment Banking
6 4 (2.56%) Law
6 4 (2.56%) Marketing
7 3 (1.92%) Legal
8 2 (1.28%) Financial Institution
8 2 (1.28%) Games
9 1 (0.64%) Advertising
9 1 (0.64%) Back Office
9 1 (0.64%) Electronics
9 1 (0.64%) Manufacturing
9 1 (0.64%) Telecoms
Job Titles
1 40 (25.64%) Developer
2 17 (10.90%) Systems Engineer
3 15 (9.62%) Administrator
3 15 (9.62%) DBA
4 14 (8.97%) SQL DBA
5 12 (7.69%) Analyst
5 12 (7.69%) Infrastructure Engineer
6 11 (7.05%) Linux Engineer
6 11 (7.05%) VMware Engineer
7 10 (6.41%) Architect
7 10 (6.41%) Infrastructure Specialist
8 9 (5.77%) Applications Support
8 9 (5.77%) DevOps Engineer
8 9 (5.77%) Solutions Architect
8 9 (5.77%) Windows Engineer
9 7 (4.49%) Python Developer
9 7 (4.49%) Senior Developer
9 7 (4.49%) Support Analyst
9 7 (4.49%) VMware Specialist
9 7 (4.49%) Windows Systems Engineer
Libraries, Frameworks & Software Standards
1 13 (8.33%) .NET
1 13 (8.33%) AngularJS
2 12 (7.69%) HTML
3 10 (6.41%) CSS
3 10 (6.41%) React
4 9 (5.77%) Spring
4 9 (5.77%) Web Services
5 7 (4.49%) NumPy
5 7 (4.49%) Pandas
5 7 (4.49%) RESTful
5 7 (4.49%) SciPy
6 6 (3.85%) JMS
7 5 (3.21%) HTML5
7 5 (3.21%) REST
8 4 (2.56%) ASP.NET
8 4 (2.56%) Backbone.js
8 4 (2.56%) LAMP
8 4 (2.56%) Middleware
8 4 (2.56%) Node.js
8 4 (2.56%) RabbitMQ
Miscellaneous
1 31 (19.87%) Clustering
2 27 (17.31%) Analytical Skills
3 15 (9.62%) Greenfield Project
4 12 (7.69%) Data Centre
5 9 (5.77%) Replication
6 7 (4.49%) Computer Science
7 6 (3.85%) User Experience
8 5 (3.21%) Enterprise Software
8 5 (3.21%) PKI
9 4 (2.56%) Client/Server
9 4 (2.56%) Fintech
9 4 (2.56%) Smartphone
10 3 (1.92%) Fixed Income
10 3 (1.92%) Foreign Exchange (FX)
10 3 (1.92%) Grid Computing
10 3 (1.92%) N-Tier
11 2 (1.28%) Cloud Native
11 2 (1.28%) HP Storage
11 2 (1.28%) Linux Command Line
11 2 (1.28%) SWIFT
Operating Systems
1 49 (31.41%) Linux
2 45 (28.85%) Windows
3 30 (19.23%) Windows Server
4 26 (16.67%) Unix
5 23 (14.74%) Red Hat Enterprise Linux
6 14 (8.97%) Windows Server 2008
7 13 (8.33%) Windows Server 2012
8 10 (6.41%) Windows Server 2003
9 8 (5.13%) Solaris
10 5 (3.21%) CentOS
11 4 (2.56%) Android
12 3 (1.92%) Ubuntu
13 2 (1.28%) AIX
13 2 (1.28%) Apple iOS
13 2 (1.28%) CoreOS
13 2 (1.28%) HPUX
14 1 (0.64%) SUSE
14 1 (0.64%) SUSE Linux Enterprise Server
14 1 (0.64%) Windows 2000 Server
14 1 (0.64%) Windows 7
Processes & Methodologies
1 40 (25.64%) Agile Software Development
2 34 (21.79%) Disaster Recovery
3 25 (16.03%) DevOps
4 23 (14.74%) ITIL
5 22 (14.10%) Configuration Management
6 18 (11.54%) Software Engineering
7 16 (10.26%) E-Commerce
7 16 (10.26%) Multithreading
7 16 (10.26%) Performance Tuning
8 15 (9.62%) Problem Management
9 14 (8.97%) Change Management
10 13 (8.33%) Low Latency
10 13 (8.33%) Open Source
11 12 (7.69%) Continuous Integration
12 11 (7.05%) ETL
12 11 (7.05%) Migration
12 11 (7.05%) Scrum
13 10 (6.41%) Multithreaded Programming
13 10 (6.41%) Service Delivery
13 10 (6.41%) Time Management
Programming Languages
1 43 (27.56%) SQL
2 34 (21.79%) Python
3 33 (21.15%) Java
4 21 (13.46%) JavaScript
5 20 (12.82%) PowerShell
6 18 (11.54%) C
7 16 (10.26%) C++
8 13 (8.33%) C#
9 12 (7.69%) Bash Shell
9 12 (7.69%) Ruby
10 8 (5.13%) Shell Script
11 7 (4.49%) T-SQL
12 6 (3.85%) Go
12 6 (3.85%) Perl
13 4 (2.56%) PHP
14 3 (1.92%) VBScript
15 2 (1.28%) ES6
15 2 (1.28%) PL/SQL
15 2 (1.28%) TypeScript
16 1 (0.64%) Groovy
Qualifications
1 31 (19.87%) Degree
2 7 (4.49%) Cisco Certification
3 6 (3.85%) CCNP
4 5 (3.21%) Microsoft Certification
5 4 (2.56%) CCNA
5 4 (2.56%) RHCE
5 4 (2.56%) SAP Certification
6 3 (1.92%) SC Cleared
6 3 (1.92%) Security Cleared
7 1 (0.64%) CCAA
7 1 (0.64%) Citrix Certification
7 1 (0.64%) ITIL Certification
7 1 (0.64%) MCSE
7 1 (0.64%) RHCA
Quality Assurance & Compliance
1 7 (4.49%) QA
2 3 (1.92%) SLA
3 2 (1.28%) Data Quality
4 1 (0.64%) GCP
4 1 (0.64%) ISAE 3402
4 1 (0.64%) PCI DSS
System Software
1 31 (19.87%) VMware Infrastructure
2 27 (17.31%) Active Directory
3 13 (8.33%) Docker
4 9 (5.77%) VMware ESX
5 5 (3.21%) Virtual Machines
6 3 (1.92%) Hyper-V
6 3 (1.92%) Varnish
6 3 (1.92%) vSphere
7 2 (1.28%) Oracle RAC
8 1 (0.64%) BitLocker
8 1 (0.64%) NFS
8 1 (0.64%) Veritas Cluster Server
8 1 (0.64%) Virtual Servers
8 1 (0.64%) VMware ESXi
8 1 (0.64%) XenApp
Systems Management
1 21 (13.46%) Puppet
2 17 (10.90%) Ansible
3 13 (8.33%) vCenter Server
4 12 (7.69%) Opscode Chef
5 7 (4.49%) Control-M
5 7 (4.49%) Terraform
6 5 (3.21%) Microsoft Clustering
7 3 (1.92%) HAProxy
7 3 (1.92%) Kubernetes
8 2 (1.28%) Nagios
8 2 (1.28%) Prometheus
8 2 (1.28%) SCCM
9 1 (0.64%) Data Guard
9 1 (0.64%) Ganglia
9 1 (0.64%) McAfee ePO
9 1 (0.64%) SCOM
9 1 (0.64%) Tivoli
9 1 (0.64%) Tivoli Storage Manager
9 1 (0.64%) WSUS
9 1 (0.64%) ZABBIX
Vendors
1 46 (29.49%) Microsoft
2 38 (24.36%) VMware
3 32 (20.51%) Oracle
4 22 (14.10%) Cisco
5 14 (8.97%) NetApp
5 14 (8.97%) Red Hat
6 12 (7.69%) Citrix
7 8 (5.13%) SAP
8 7 (4.49%) HP
8 7 (4.49%) Juniper
9 6 (3.85%) AppDynamics
9 6 (3.85%) Atlassian
9 6 (3.85%) Dell
9 6 (3.85%) Palo Alto
10 5 (3.21%) CheckPoint
10 5 (3.21%) Google
11 4 (2.56%) 3PAR
11 4 (2.56%) Brocade
11 4 (2.56%) F5
11 4 (2.56%) New Relic
City, London
Premier IT
Salary: £70000.00 - £80000 per annum
Posted: 2 days ago
City, London
Client Server
Salary: £70k to £85k + bonus + benefits
Posted: 2 days ago
City, London
Client Server
Salary: £90k to £120k + bonus + benefits
Posted: 2 days ago
City, London
Total Recruitment Specialists Limited / TRG / Total recruitment group
Salary: £80000 - £100000 Per Annum
Posted: 2 days ago
City, London
Client Server
Salary: £50k to £50k + bonus + benefits
Posted: 2 days ago
City, London
Cititec
Salary: £11000 - £80000 per annum + benefits
Posted: 3 days ago
City of London
Streamline Connections Ltd
Salary: £45000 - £55000 per annum + Bonus, Benefits
Posted: 6 days ago
City, London
Pro-Quest Resourcing Ltd
Salary: £45000 - £60000 Per Annum + bens
Posted: 6 days ago
City, London
Charles Taylor plc
Salary: Market related
Posted: 8 days ago
City, London
Digital Gurus
Salary: £65000 Per Annum
Posted: 16 days ago
City of London
Michael Page Technology
Salary: £40000 - £60000 per annum
Posted: 20 days ago
City of London
Hays London City Cheapside
Salary: £65000.00 - £70000.00 per annum + Benefits + Bonus
Posted: 8 days ago
City, London
Workshop IT Ltd.
Salary: £25,000 per annum plus travel, pension, overtime, laptop and phone
Posted: 17 days ago
City of London
Venturi
Salary: £65000.00 - £80000.00 per annum + bonus and benefits
Posted: 14 days ago