Period
to 20 September 2019

The following table provides summary statistics for permanent job vacancies advertised in Central 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 20 September 2019 with a comparison to the same period in the previous 2 years.

High Availability
London > Central London
6 months to
20 Sep 2019
Same period 2018 Same period 2017
Rank 197 228 218
Rank change year-on-year +31 -10 -44
Permanent jobs citing High Availability 200 174 162
As % of all permanent IT jobs advertised in Central London 1.55% 1.23% 1.30%
As % of the Processes & Methodologies category 1.67% 1.33% 1.41%
Number of salaries quoted 152 152 145
Central London median annual salary £65,000 £65,000 £62,500
Median salary % change year-on-year - +4.00% +13.64%
10th Percentile £48,200 £42,500 £43,950
90th Percentile £127,500 £97,250 £87,000
London median annual salary £67,500 £65,000 £61,500
% change year-on-year +3.85% +5.69% -1.60%

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 Central London with a requirement for process or methodology skills.

All Process and Methodology Skills
Central London
Permanent vacancies with a requirement for process or methodology skills 11,972 13,084 11,520
As % of all permanent IT jobs advertised in Central London 93.05% 92.80% 92.72%
Number of salaries quoted 10,548 11,665 10,411
Central London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +4.35%
10th Percentile £37,500 £36,250 £35,000
90th Percentile £95,000 £92,500 £92,500
London median annual salary £65,000 £62,500 £60,000
% change year-on-year +4.00% +4.17% +4.35%

High Availability
Job Vacancy Trend in Central London

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

Job vacancy trend for High Availability in Central London

High Availability
Salary Trend in Central London

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

Salary trend for High Availability in Central London

High Availability
Salary Histogram in Central London

The salary distribution of IT jobs citing High Availability in Central London over the 6 months to 20 September 2019.

Salary histogram for High Availability in Central London

High Availability
Job Locations in Central 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 Central London region over the 6 months to 20 September 2019. 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
City of London +18 129 £67,500 +3.85% 33
West End of London +33 32 £65,000 +4.00%
Southwark -2 3 £50,000 -13.04%
City of Westminster -9 1 £60,000 -14.29%
Camden - 1 £48,000 -
High Availability
London

For the 6 months to 20 September 2019, 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 Central London region with a requirement for High Availability.

1 72 (36.00%) Agile Software Development
2 63 (31.50%) Linux
3 57 (28.50%) Finance
4 53 (26.50%) Low Latency
5 44 (22.00%) Java
6 42 (21.00%) Windows
7 38 (19.00%) TDD
8 37 (18.50%) Docker
8 37 (18.50%) Fintech
9 35 (17.50%) AWS
10 34 (17.00%) JavaScript
11 33 (16.50%) Software Engineering
11 33 (16.50%) DevOps
12 32 (16.00%) Python
13 31 (15.50%) Firewall
14 30 (15.00%) REST
15 29 (14.50%) PostgreSQL
15 29 (14.50%) Degree
16 27 (13.50%) Disaster Recovery
17 26 (13.00%) Continuous Integration
17 26 (13.00%) Business Continuity
18 25 (12.50%) Banking
18 25 (12.50%) Scrum
19 24 (12.00%) HTTP
19 24 (12.00%) DNS
19 24 (12.00%) Microsoft
20 23 (11.50%) SQL
20 23 (11.50%) Azure
21 22 (11.00%) C++
21 22 (11.00%) Web Services

High Availability
Co-occurring IT Skills in Central 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 (6.50%) Adobe Experience Manager
1 13 (6.50%) Apache Solr
1 13 (6.50%) Elasticsearch
2 7 (3.50%) Skype for Business
3 4 (2.00%) Confluence
3 4 (2.00%) nginx
4 2 (1.00%) CMS
4 2 (1.00%) MS Exchange
4 2 (1.00%) SharePoint
5 1 (0.50%) IIS
Applications
1 1 (0.50%) Microsoft Office
Business Applications
1 13 (6.50%) SAP Hybris
2 1 (0.50%) Endur
Cloud Services
1 35 (17.50%) AWS
2 23 (11.50%) Azure
3 17 (8.50%) GitHub
4 14 (7.00%) SaaS
5 12 (6.00%) Office 365
6 10 (5.00%) Cloud Computing
7 7 (3.50%) PaaS
8 6 (3.00%) IaaS
9 3 (1.50%) Azure Active Directory
9 3 (1.50%) G Suite
9 3 (1.50%) Power Platform
10 2 (1.00%) GCP
10 2 (1.00%) Mimecast
10 2 (1.00%) Rackspace Cloud
11 1 (0.50%) AWS CloudFormation
11 1 (0.50%) Azure Functions
11 1 (0.50%) Serverless
Communications & Networking
1 31 (15.50%) Firewall
2 24 (12.00%) DNS
2 24 (12.00%) HTTP
3 14 (7.00%) LAN
4 12 (6.00%) SAN
4 12 (6.00%) WAN
5 11 (5.50%) TCP/IP
6 7 (3.50%) DHCP
6 7 (3.50%) DMZ
6 7 (3.50%) NetScaler
6 7 (3.50%) Network Security
6 7 (3.50%) Skype
6 7 (3.50%) VPN
7 6 (3.00%) SSL
8 4 (2.00%) Cisco IOS
9 3 (1.50%) MPLS
10 2 (1.00%) OpenVPN
10 2 (1.00%) VLAN
10 2 (1.00%) VoIP
11 1 (0.50%) F5 BIG-IP LTM
Database & Business Intelligence
1 29 (14.50%) PostgreSQL
2 21 (10.50%) NoSQL
3 19 (9.50%) SQL Server
4 18 (9.00%) Redis
4 18 (9.00%) Relational Database
5 12 (6.00%) SQL Server Integration Services
6 11 (5.50%) SQL Server Reporting Services
7 9 (4.50%) RDBMS
8 8 (4.00%) Data Warehouse
9 7 (3.50%) Big Data
9 7 (3.50%) MySQL
10 6 (3.00%) SQL Server 2016
10 6 (3.00%) SQL Server 2017
11 5 (2.50%) Oracle Database
11 5 (2.50%) SQL Server 2012
12 3 (1.50%) Azure SQL Database
12 3 (1.50%) Power BI
12 3 (1.50%) SQL Server 2005
12 3 (1.50%) SQL Server Analysis Services
13 2 (1.00%) SQL Server 2008
Development Applications
1 21 (10.50%) Jenkins
2 18 (9.00%) TeamCity
3 17 (8.50%) JUnit
3 17 (8.50%) Mockito
4 4 (2.00%) Bitbucket
4 4 (2.00%) CircleCI
4 4 (2.00%) Flyway
4 4 (2.00%) Gradle
4 4 (2.00%) JIRA
4 4 (2.00%) SonarQube
4 4 (2.00%) Visual Studio Team System
5 2 (1.00%) Cucumber
5 2 (1.00%) gulp
5 2 (1.00%) Jasmine
5 2 (1.00%) Karma Test Runner
5 2 (1.00%) PhantomJS
5 2 (1.00%) Selenium
6 1 (0.50%) GitLab
6 1 (0.50%) Octopus Deploy
6 1 (0.50%) SQL Server Management Studio (SSMS)
General
1 57 (28.50%) Finance
2 25 (12.50%) Banking
3 14 (7.00%) Retail
4 10 (5.00%) Law
5 8 (4.00%) Legal
6 7 (3.50%) Financial Institution
6 7 (3.50%) Investment Banking
7 5 (2.50%) Games
8 3 (1.50%) Marketing
9 2 (1.00%) Front Office
9 2 (1.00%) Public Sector
9 2 (1.00%) Publishing
10 1 (0.50%) Back Office
10 1 (0.50%) Telecoms
Job Titles
1 71 (35.50%) Developer
2 38 (19.00%) Senior Developer
3 28 (14.00%) Administrator
4 23 (11.50%) Java Developer
5 21 (10.50%) Systems Administrator
6 19 (9.50%) JavaScript Developer
7 17 (8.50%) Architect
7 17 (8.50%) Node.js Developer
7 17 (8.50%) Solutions Architect
8 14 (7.00%) AWS Developer
8 14 (7.00%) Full Stack Developer
8 14 (7.00%) Senior Java Developer
8 14 (7.00%) Software Engineer
9 13 (6.50%) E-Commerce Developer
9 13 (6.50%) Java E-Commerce Developer
9 13 (6.50%) Machine Learning Developer
9 13 (6.50%) Senior E-Commerce Developer
9 13 (6.50%) Senior Full Stack Developer
10 12 (6.00%) IT Administrator
10 12 (6.00%) IT Systems Administrator
Libraries, Frameworks & Software Standards
1 30 (15.00%) REST
2 22 (11.00%) Web Services
3 21 (10.50%) J2EE
3 21 (10.50%) Node.js
4 20 (10.00%) Spring
5 18 (9.00%) Spring Boot
6 16 (8.00%) HTML
7 14 (7.00%) CSS
8 13 (6.50%) jQuery
9 12 (6.00%) .NET
10 9 (4.50%) JSON
10 9 (4.50%) WebSockets
11 8 (4.00%) SAML
12 7 (3.50%) LDAP
12 7 (3.50%) RESTful
13 5 (2.50%) gRPC
14 4 (2.00%) AngularJS
14 4 (2.00%) Elastic Stack
14 4 (2.00%) Hibernate
14 4 (2.00%) libvirt
Miscellaneous
1 16 (8.00%) Derivative
2 13 (6.50%) iPad
3 12 (6.00%) Analytical Skills
3 12 (6.00%) Clustering
4 10 (5.00%) Data Centre
5 7 (3.50%) Cyberthreat
5 7 (3.50%) Equities
6 6 (3.00%) Cloud Native
7 5 (2.50%) Algorithms
7 5 (2.50%) Data Structures
7 5 (2.50%) Public Cloud
8 4 (2.00%) Management Information System
8 4 (2.00%) Self-Motivation
9 3 (1.50%) Digital Media
9 3 (1.50%) Hybrid Cloud
10 2 (1.00%) Distributed Denial-of-Service
10 2 (1.00%) Enterprise Storage
10 2 (1.00%) Greenfield Project
10 2 (1.00%) Replication
10 2 (1.00%) User Experience
Operating Systems
1 63 (31.50%) Linux
2 42 (21.00%) Windows
3 13 (6.50%) Windows Server
4 8 (4.00%) Red Hat Enterprise Linux
5 6 (3.00%) Android
5 6 (3.00%) Windows 10
6 5 (2.50%) CentOS
6 5 (2.50%) CoreOS
6 5 (2.50%) Ubuntu
6 5 (2.50%) Unix
6 5 (2.50%) Windows Server 2012
7 4 (2.00%) Mac OS
8 3 (1.50%) Windows 7
9 2 (1.00%) Mac OS X
9 2 (1.00%) Solaris
9 2 (1.00%) Windows 8
Processes & Methodologies
1 72 (36.00%) Agile Software Development
2 53 (26.50%) Low Latency
3 38 (19.00%) TDD
4 37 (18.50%) Fintech
5 33 (16.50%) DevOps
5 33 (16.50%) Software Engineering
6 27 (13.50%) Disaster Recovery
7 26 (13.00%) Business Continuity
7 26 (13.00%) Continuous Integration
8 25 (12.50%) Scrum
9 21 (10.50%) Data Protection
9 21 (10.50%) Machine Learning
10 19 (9.50%) OO
11 18 (9.00%) Due Diligence
12 17 (8.50%) Computer Science
12 17 (8.50%) Continuous Improvement
12 17 (8.50%) Cybersecurity
12 17 (8.50%) Kanban
12 17 (8.50%) Mentoring
12 17 (8.50%) Stakeholder Management
Programming Languages
1 44 (22.00%) Java
2 34 (17.00%) JavaScript
3 32 (16.00%) Python
4 23 (11.50%) SQL
5 22 (11.00%) C++
6 21 (10.50%) C#
7 20 (10.00%) Bash Shell
8 17 (8.50%) ES6
9 14 (7.00%) Java 8
10 13 (6.50%) Java 9
11 12 (6.00%) Go
12 11 (5.50%) Kotlin
13 9 (4.50%) T-SQL
14 7 (3.50%) TypeScript
15 5 (2.50%) PowerShell
16 4 (2.00%) Ruby
17 1 (0.50%) Perl
17 1 (0.50%) PHP
17 1 (0.50%) VBA
Qualifications
1 29 (14.50%) Degree
2 17 (8.50%) Computer Science Degree
3 5 (2.50%) Master's Degree
4 3 (1.50%) MBA
5 2 (1.00%) CCNA
5 2 (1.00%) CCNP
5 2 (1.00%) Cisco Certification
5 2 (1.00%) MCP
5 2 (1.00%) Microsoft Certification
5 2 (1.00%) Sun Certification
6 1 (0.50%) JNCIP
6 1 (0.50%) JNCIS
Quality Assurance & Compliance
1 18 (9.00%) QA
2 6 (3.00%) ISO/IEC 27001
3 5 (2.50%) SLA
4 2 (1.00%) PCI DSS
5 1 (0.50%) GDPR
System Software
1 37 (18.50%) Docker
2 20 (10.00%) Active Directory
3 9 (4.50%) Hyper-V
4 7 (3.50%) VMware ESXi
5 6 (3.00%) VMware Infrastructure
6 5 (2.50%) etcd
7 4 (2.00%) KVM
7 4 (2.00%) oVirt
7 4 (2.00%) QEMU
8 3 (1.50%) Firmware
9 2 (1.00%) vSphere
Systems Management
1 13 (6.50%) Kubernetes
2 11 (5.50%) Ansible
3 9 (4.50%) Prometheus
4 8 (4.00%) Opscode Chef
4 8 (4.00%) Puppet
5 4 (2.00%) Grafana
5 4 (2.00%) Kibana
6 3 (1.50%) Data Guard
6 3 (1.50%) Failover Clustering
7 2 (1.00%) Terraform
8 1 (0.50%) Automic
8 1 (0.50%) Perfmon
8 1 (0.50%) vCenter Server
Vendors
1 24 (12.00%) Microsoft
2 17 (8.50%) Cisco
3 16 (8.00%) Reuters
4 14 (7.00%) VMware
5 13 (6.50%) Adobe
5 13 (6.50%) Demandware
5 13 (6.50%) hybris
5 13 (6.50%) Salesforce.com
5 13 (6.50%) SAP
6 12 (6.00%) Red Hat
7 10 (5.00%) Oracle
8 8 (4.00%) IBM
8 8 (4.00%) MuleSoft
8 8 (4.00%) TIBCO
9 7 (3.50%) F5
10 6 (3.00%) Apple
10 6 (3.00%) Meraki
10 6 (3.00%) Palo Alto
10 6 (3.00%) Riverbed
11 2 (1.00%) CheckPoint