Period
to 8 April 2020

The following table provides summary statistics for permanent job vacancies advertised in 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 8 April 2020 with a comparison to the same period in the previous 2 years.

High Availability
England > London
6 months to
8 Apr 2020
Same period 2019 Same period 2018
Rank 280 242 240
Rank change year-on-year -38 -2 -28
Permanent jobs citing High Availability 550 877 1,046
As % of all permanent jobs advertised in London 1.15% 1.43% 1.49%
As % of the Processes & Methodologies category 1.23% 1.54% 1.60%
Number of salaries quoted 448 761 943
Median annual salary £70,000 £66,026 £65,000
Median salary % change year-on-year +6.02% +1.58% +8.33%
10th Percentile £46,250 £42,500 £35,000
90th Percentile £100,000 £115,000 £96,250
England median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +1.94%

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 London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Permanent vacancies with a requirement for process or methodology skills 44,536 56,847 65,547
As % of all permanent IT jobs advertised in London 93.51% 92.67% 93.27%
Number of salaries quoted 35,735 45,982 53,977
Median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% -
10th Percentile £37,500 £36,250 £35,000
90th Percentile £100,000 £95,000 £92,500
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% +1.01%

High Availability
Job Vacancy Trend in London

Job postings citing High Availability as a proportion of all IT jobs advertised in London.

Job vacancy trend for High Availability in London

High Availability
Salary Trend in London

3-month moving average salary quoted in jobs citing High Availability in London.

Salary trend for High Availability in London

High Availability
Salary Histogram in London

Salary distribution for jobs citing High Availability in London over the 6 months to 8 April 2020.

Salary histogram for High Availability in London

High Availability
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing High Availability within the London region over the 6 months to 8 April 2020. 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 +30 105 £77,500 +3.33% 18
West London +21 32 £65,000 +15.56% 5
South London -18 18 £60,000 +14.29% 8
East London -5 2 £82,500 +57.14% 6
High Availability
England

For the 6 months to 8 April 2020, IT jobs citing High Availability 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 High Availability.

1 209 (38.00%) DevOps
2 192 (34.91%) Agile Software Development
3 178 (32.36%) AWS
4 168 (30.55%) Linux
5 159 (28.91%) SQL
6 158 (28.73%) Finance
7 150 (27.27%) Azure
8 122 (22.18%) Java
9 119 (21.64%) SQL Server
10 107 (19.45%) Python
11 103 (18.73%) Docker
12 98 (17.82%) Ansible
13 95 (17.27%) Microsoft
14 93 (16.91%) Windows
15 92 (16.73%) Disaster Recovery
16 90 (16.36%) Continuous Integration
17 88 (16.00%) Jenkins
18 74 (13.45%) Web Services
18 74 (13.45%) ITIL
19 73 (13.27%) Oracle
20 71 (12.91%) Kubernetes
21 70 (12.73%) Microservices
22 66 (12.00%) Firewall
23 65 (11.82%) Software Engineering
24 63 (11.45%) Migration
25 60 (10.91%) Git (software)
26 59 (10.73%) Scrum
27 58 (10.55%) C#
28 57 (10.36%) Puppet
29 56 (10.18%) Bash Shell

High Availability
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 20 (3.64%) Elasticsearch
2 18 (3.27%) Apache
2 18 (3.27%) IIS
3 16 (2.91%) Confluence
3 16 (2.91%) Tomcat
4 12 (2.18%) CMS
5 11 (2.00%) MS Exchange
5 11 (2.00%) WebSphere
6 10 (1.82%) Exchange Server 2010
7 8 (1.45%) Adobe Experience Manager
7 8 (1.45%) Apache Spark
8 7 (1.27%) Umbraco
9 6 (1.09%) Exchange Server 2013
9 6 (1.09%) Mule
9 6 (1.09%) WebSphere Application Server
10 5 (0.91%) SharePoint
11 4 (0.73%) Oracle SOA Suite
11 4 (0.73%) Sitecore CMS
11 4 (0.73%) WebLogic
12 3 (0.55%) OpenStack
Applications
1 3 (0.55%) Microsoft Office
Business Applications
1 8 (1.45%) SAP Hybris
2 6 (1.09%) NetSuite
3 2 (0.36%) Dynamics CRM
4 1 (0.18%) Advent Geneva
4 1 (0.18%) Remedy ITSM
4 1 (0.18%) SAP Business One
Cloud Services
1 178 (32.36%) AWS
2 150 (27.27%) Azure
3 27 (4.91%) Office 365
4 26 (4.73%) IaaS
5 25 (4.55%) GCP
6 24 (4.36%) SaaS
7 22 (4.00%) AWS CloudFormation
8 21 (3.82%) Amazon EC2
8 21 (3.82%) Amazon S3
8 21 (3.82%) AWS Lambda
8 21 (3.82%) Serverless
9 18 (3.27%) Route 53
10 17 (3.09%) PaaS
10 17 (3.09%) Virtual Private Cloud
11 14 (2.55%) AWS Elastic Beanstalk
12 13 (2.36%) Amazon ElastiCache
12 13 (2.36%) CloudFront
13 11 (2.00%) Azure ExpressRoute
13 11 (2.00%) GitHub
14 10 (1.82%) Power Platform
Communications & Networking
1 66 (12.00%) Firewall
2 40 (7.27%) WAN
3 38 (6.91%) DNS
4 37 (6.73%) LAN
4 37 (6.73%) TCP/IP
5 26 (4.73%) HTTP
6 25 (4.55%) Internet
6 25 (4.55%) SAN
7 23 (4.18%) VPN
8 20 (3.64%) Network Security
8 20 (3.64%) VLAN
9 14 (2.55%) BGP
9 14 (2.55%) OSPF
10 12 (2.18%) MPLS
10 12 (2.18%) Wi-Fi
11 11 (2.00%) RTP
12 10 (1.82%) NAS
12 10 (1.82%) SSL
12 10 (1.82%) Wireless
13 9 (1.64%) DHCP
Database & Business Intelligence
1 119 (21.64%) SQL Server
2 40 (7.27%) MySQL
3 34 (6.18%) NoSQL
3 34 (6.18%) PostgreSQL
4 33 (6.00%) Big Data
4 33 (6.00%) Relational Database
5 26 (4.73%) Amazon RDS
5 26 (4.73%) Oracle Database
6 21 (3.82%) RDBMS
6 21 (3.82%) SQL Server Integration Services
7 19 (3.45%) SQL Server 2014
7 19 (3.45%) SQL Server Reporting Services
8 18 (3.27%) Data Warehouse
9 17 (3.09%) MongoDB
10 16 (2.91%) Azure SQL Database
11 15 (2.73%) SQL Server Analysis Services
12 13 (2.36%) SQL Server 2016
13 11 (2.00%) Amazon DynamoDB
13 11 (2.00%) Blockchain
13 11 (2.00%) HBase
Development Applications
1 88 (16.00%) Jenkins
2 60 (10.91%) Git (software)
3 20 (3.64%) Atlassian Bamboo
3 20 (3.64%) JUnit
4 19 (3.45%) JIRA
4 19 (3.45%) Octopus Deploy
5 16 (2.91%) TeamCity
6 13 (2.36%) Hudson
7 12 (2.18%) GitLab
7 12 (2.18%) Mockito
7 12 (2.18%) Vagrant
8 10 (1.82%) Maven
9 9 (1.64%) Visual Studio
10 8 (1.45%) ReSharper
10 8 (1.45%) Team Foundation Server
11 7 (1.27%) Selenium
12 6 (1.09%) Cucumber
12 6 (1.09%) Jasmine
13 5 (0.91%) Bitbucket
13 5 (0.91%) IBM UrbanCode
General
1 158 (28.73%) Finance
2 56 (10.18%) Banking
3 33 (6.00%) Retail
4 20 (3.64%) Telecoms
5 15 (2.73%) Legal
6 11 (2.00%) Financial Institution
7 9 (1.64%) Front Office
8 8 (1.45%) Law
9 7 (1.27%) Billing
9 7 (1.27%) Marketing
10 5 (0.91%) Investment Banking
10 5 (0.91%) Public Sector
11 4 (0.73%) Games
11 4 (0.73%) Online Betting
12 3 (0.55%) Advertising
13 1 (0.18%) Back Office
13 1 (0.18%) Digital Economy
13 1 (0.18%) Publishing
Job Titles
1 109 (19.82%) Developer
2 81 (14.73%) DevOps Engineer
3 57 (10.36%) DBA
4 44 (8.00%) Architect
5 41 (7.45%) Java Developer
6 37 (6.73%) Administrator
7 36 (6.55%) SQL DBA
8 31 (5.64%) Senior Developer
9 29 (5.27%) Network Engineer
10 26 (4.73%) SQL Server DBA
11 25 (4.55%) Senior DevOps
11 25 (4.55%) Senior DevOps Engineer
12 24 (4.36%) C# Developer
13 20 (3.64%) Cloud Architect
13 20 (3.64%) Infrastructure Engineer
14 18 (3.27%) Senior Java Developer
14 18 (3.27%) Solutions Architect
15 17 (3.09%) AWS Engineer
15 17 (3.09%) Site Reliability Engineer
15 17 (3.09%) Systems Administrator
Libraries, Frameworks & Software Standards
1 74 (13.45%) Web Services
2 56 (10.18%) .NET
3 51 (9.27%) REST
4 38 (6.91%) Node.js
5 35 (6.36%) Middleware
6 31 (5.64%) Spring Boot
7 30 (5.45%) CSS
7 30 (5.45%) HTML
8 29 (5.27%) Spring
9 22 (4.00%) AngularJS
9 22 (4.00%) J2EE
10 20 (3.64%) React
11 19 (3.45%) .NET Framework
12 16 (2.91%) HTML5
13 12 (2.18%) ASP.NET
13 12 (2.18%) ASP.NET MVC
13 12 (2.18%) CSS3
14 11 (2.00%) JSON
14 11 (2.00%) Kafka
15 10 (1.82%) ASP.NET Web API
Miscellaneous
1 47 (8.55%) Analytical Skills
2 40 (7.27%) Public Cloud
3 37 (6.73%) Data Centre
4 30 (5.45%) Clustering
5 22 (4.00%) Greenfield Project
6 20 (3.64%) Hybrid Cloud
7 19 (3.45%) Management Information System
8 18 (3.27%) Replication
9 13 (2.36%) Enterprise Software
9 13 (2.36%) PKI
10 12 (2.18%) Foreign Exchange (FX)
10 12 (2.18%) Hedge funds
11 11 (2.00%) Enterprise Cloud
11 11 (2.00%) Fat Client
11 11 (2.00%) Thin Client
12 10 (1.82%) Distributed Denial-of-Service
12 10 (1.82%) Enterprise Storage
12 10 (1.82%) Linux Command Line
12 10 (1.82%) Private Cloud
13 9 (1.64%) Bitcoin
Operating Systems
1 168 (30.55%) Linux
2 93 (16.91%) Windows
3 34 (6.18%) Windows Server
4 33 (6.00%) Unix
5 29 (5.27%) Red Hat Enterprise Linux
6 18 (3.27%) CentOS
6 18 (3.27%) Windows Server 2012
7 10 (1.82%) Windows Server 2008
8 8 (1.45%) Oracle Linux
8 8 (1.45%) Ubuntu
9 7 (1.27%) Fedora
10 4 (0.73%) Windows Server 2016
11 3 (0.55%) AIX
11 3 (0.55%) SUSE
11 3 (0.55%) Windows 7
11 3 (0.55%) Windows 8
12 2 (0.36%) Solaris
12 2 (0.36%) SUSE Linux Enterprise Server
12 2 (0.36%) Windows Server 2019
13 1 (0.18%) Debian
Processes & Methodologies
1 209 (38.00%) DevOps
2 192 (34.91%) Agile Software Development
3 92 (16.73%) Disaster Recovery
4 90 (16.36%) Continuous Integration
5 74 (13.45%) ITIL
6 70 (12.73%) Microservices
7 65 (11.82%) Software Engineering
8 63 (11.45%) Migration
9 59 (10.73%) Scrum
10 53 (9.64%) TDD
11 46 (8.36%) Performance Tuning
12 45 (8.18%) Problem-Solving
13 40 (7.27%) Open Source
14 39 (7.09%) SDLC
15 38 (6.91%) Analytics
15 38 (6.91%) Configuration Management
15 38 (6.91%) OO
15 38 (6.91%) Technical Leadership
16 37 (6.73%) Infrastructure as Code
16 37 (6.73%) Low Latency
Programming Languages
1 159 (28.91%) SQL
2 122 (22.18%) Java
3 107 (19.45%) Python
4 58 (10.55%) C#
5 56 (10.18%) Bash Shell
5 56 (10.18%) JavaScript
6 52 (9.45%) PowerShell
7 41 (7.45%) Go
8 38 (6.91%) C++
9 33 (6.00%) Ruby
10 30 (5.45%) T-SQL
11 17 (3.09%) Java 8
12 12 (2.18%) C
13 11 (2.00%) Scala
14 9 (1.64%) ES6
14 9 (1.64%) Perl
15 8 (1.45%) Java 9
16 7 (1.27%) Shell Script
17 5 (0.91%) Erlang
17 5 (0.91%) PL/SQL
Qualifications
1 50 (9.09%) Degree
2 35 (6.36%) Cisco Certification
3 23 (4.18%) Microsoft Certification
4 22 (4.00%) Computer Science Degree
5 19 (3.45%) CCNP
6 18 (3.27%) CCNA
7 15 (2.73%) AWS Certification
8 14 (2.55%) CISSP
9 11 (2.00%) MCSE
9 11 (2.00%) Security Cleared
10 10 (1.82%) CCIE
10 10 (1.82%) MCSA
11 9 (1.64%) DV Cleared
12 7 (1.27%) CISM
12 7 (1.27%) GIAC
12 7 (1.27%) Linux+ Certification
12 7 (1.27%) MCP
12 7 (1.27%) Network+ Certification
12 7 (1.27%) PRINCE2 Practitioner
12 7 (1.27%) SSCP
Quality Assurance & Compliance
1 13 (2.36%) PCI DSS
1 13 (2.36%) SLA
2 10 (1.82%) QA
3 7 (1.27%) ISO/IEC 27001
4 6 (1.09%) GDPR
5 3 (0.55%) Cyber Essentials
6 2 (0.36%) Data Quality
7 1 (0.18%) Cyber Essentials PLUS
System Software
1 103 (18.73%) Docker
2 46 (8.36%) Active Directory
3 36 (6.55%) VMware Infrastructure
4 16 (2.91%) Firmware
5 15 (2.73%) VMware ESXi
6 10 (1.82%) vSphere
7 9 (1.64%) Hyper-V
7 9 (1.64%) Samba
7 9 (1.64%) Xen
8 7 (1.27%) NFS
8 7 (1.27%) VirtualBox
8 7 (1.27%) XenApp
9 6 (1.09%) Kamailio
9 6 (1.09%) Virtual Machines
10 4 (0.73%) HDFS
10 4 (0.73%) OpenAM
10 4 (0.73%) Virtual Desktop
10 4 (0.73%) XenDesktop
11 3 (0.55%) Oracle RAC
12 2 (0.36%) vCloud
Systems Management
1 98 (17.82%) Ansible
2 71 (12.91%) Kubernetes
3 57 (10.36%) Puppet
4 53 (9.64%) Terraform
5 52 (9.45%) Opscode Chef
6 22 (4.00%) Nagios
7 19 (3.45%) Docker Swarm
7 19 (3.45%) SCCM
8 16 (2.91%) Grafana
8 16 (2.91%) ZABBIX
9 14 (2.55%) Packer
10 13 (2.36%) Consul
11 12 (2.18%) vCenter Server
12 10 (1.82%) Failover Clustering
13 9 (1.64%) Salt
14 8 (1.45%) Prometheus
15 7 (1.27%) Data Guard
15 7 (1.27%) Graphite
15 7 (1.27%) OpenNMS
15 7 (1.27%) Opsview
Vendors
1 95 (17.27%) Microsoft
2 73 (13.27%) Oracle
3 51 (9.27%) VMware
4 40 (7.27%) Cisco
5 34 (6.18%) Red Hat
6 30 (5.45%) Google
7 25 (4.55%) WorldPay
8 20 (3.64%) FIS
8 20 (3.64%) SAP
9 17 (3.09%) SolarWinds
10 16 (2.91%) IBM
11 15 (2.73%) Dell
12 11 (2.00%) EMC
12 11 (2.00%) Juniper
12 11 (2.00%) Splunk
13 10 (1.82%) Citrix
13 10 (1.82%) F5
13 10 (1.82%) NetApp
14 9 (1.64%) Salesforce.com
14 9 (1.64%) Sybase