Period
to 21 May 2018

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for High Availability skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited High Availability over the 6 months to 21 May 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

High Availability
Central London > City of London
6 months to
21 May 2018
Same period 2017 Same period 2016
Rank 188 123 143
Rank change year-on-year -65 +20 +5
Contract jobs citing High Availability 67 109 87
As % of all contract IT jobs advertised in the City of London 0.97% 1.78% 1.35%
As % of the Processes & Methodologies category 1.11% 2.04% 1.53%
Number of daily rates quoted 60 80 67
City of London median daily rate £550 £525 £475
Median daily rate % change year-on-year +4.76% +10.53% +10.47%
10th Percentile £425 £386 £305
90th Percentile £680 £682 £638
Central London median daily rate £550 £500 £475
% change year-on-year +10.00% +5.26% +9.83%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

High Availability is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 6,059 5,334 5,683
As % of all contract IT jobs advertised in the City of London 87.56% 87.26% 87.86%
Number of daily rates quoted 4,790 4,118 4,556
City of London median daily rate £505 £500 £475
Median daily rate % change year-on-year +1.00% +5.26% +5.56%
10th Percentile £338 £313 £306
90th Percentile £688 £675 £650
Central London median daily rate £500 £475 £464
% change year-on-year +5.26% +2.48% +3.00%
Number of hourly rates quoted 94 43 59
City of London median hourly rate £18.70 £18.70 £20.00
Median hourly rate % change year-on-year - -6.50% -2.18%
10th Percentile £12.01 £12.90 £11.50
90th Percentile £38.10 £29.77 £54.50
Central London median hourly rate £19.50 £16.92 £20.50
% change year-on-year +15.25% -17.46% +0.27%

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
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing High Availability in the City of London.

Contractor daily rate trend for High Availability in the City of London

High Availability
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing High Availability in the City of London over the 6 months to 21 May 2018.

Contractor daily rate histogram for High Availability in the City of London

High Availability
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for High Availability in the City of London

For the 6 months to 21 May 2018, IT contractor 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 contract job ads across the City of London region with a requirement for High Availability.

1 28 (41.79%) Linux
2 27 (40.30%) DevOps
3 26 (38.81%) Agile Software Development
4 22 (32.84%) Java
5 21 (31.34%) Python
6 20 (29.85%) Bash Shell
7 18 (26.87%) Docker
8 17 (25.37%) Grafana
8 17 (25.37%) MongoDB
8 17 (25.37%) Jenkins
8 17 (25.37%) Red Hat
9 16 (23.88%) Kafka
9 16 (23.88%) Google
9 16 (23.88%) Immutable Infrastructure
10 15 (22.39%) Ubuntu
10 15 (22.39%) CentOS
10 15 (22.39%) Low Latency
11 14 (20.90%) Go
11 14 (20.90%) GitHub
11 14 (20.90%) Nagios
11 14 (20.90%) Device Driver
11 14 (20.90%) Prometheus
11 14 (20.90%) Icinga
12 13 (19.40%) SQL
13 12 (17.91%) Windows
14 10 (14.93%) Microsoft Azure
14 10 (14.93%) Microservices
15 9 (13.43%) Multithreading
15 9 (13.43%) Electronic Trading
15 9 (13.43%) TDD

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 5 (7.46%) Apache Spark
2 4 (5.97%) SharePoint
3 3 (4.48%) Apache
3 3 (4.48%) Elasticsearch
4 2 (2.99%) JBoss
4 2 (2.99%) Skype for Business
4 2 (2.99%) Tomcat
5 1 (1.49%) Exchange Server 2003
5 1 (1.49%) Exchange Server 2007
5 1 (1.49%) Exchange Server 2010
5 1 (1.49%) IIS
5 1 (1.49%) MS Exchange
5 1 (1.49%) NServiceBus
5 1 (1.49%) WebLogic
Cloud Services
1 14 (20.90%) GitHub
2 10 (14.93%) Microsoft Azure
3 7 (10.45%) Amazon AWS
4 2 (2.99%) Google Cloud Platform
4 2 (2.99%) Office 365
5 1 (1.49%) Akamai
5 1 (1.49%) AWS Elastic Beanstalk
5 1 (1.49%) Cloud Computing
5 1 (1.49%) SaaS
Communications & Networking
1 6 (8.96%) DNS
1 6 (8.96%) Firewall
2 5 (7.46%) DHCP
3 4 (5.97%) WAN
4 3 (4.48%) Internet
4 3 (4.48%) IPsec
4 3 (4.48%) LAN
4 3 (4.48%) SAN
4 3 (4.48%) TCP/IP
5 2 (2.99%) ADSL
5 2 (2.99%) Cisco Nexus
5 2 (2.99%) Ethernet
5 2 (2.99%) HSRP
5 2 (2.99%) ICMP
5 2 (2.99%) ISDN
5 2 (2.99%) MPLS
5 2 (2.99%) PSTN
5 2 (2.99%) SSL
5 2 (2.99%) VPN
5 2 (2.99%) X.25
Database & Business Intelligence
1 17 (25.37%) MongoDB
2 7 (10.45%) Big Data
2 7 (10.45%) Hadoop
3 6 (8.96%) NoSQL
3 6 (8.96%) SQL Server
4 4 (5.97%) PostgreSQL
5 3 (4.48%) Apache Kudu
5 3 (4.48%) Couchbase
5 3 (4.48%) SQL Server 2008
5 3 (4.48%) SQL Server 2012
5 3 (4.48%) SQL Server Integration Services
5 3 (4.48%) SQL Server Reporting Services
6 2 (2.99%) Apache Hive
6 2 (2.99%) SQL Server 2014
6 2 (2.99%) SQL Server 2016
6 2 (2.99%) SQL Server Analysis Services
7 1 (1.49%) Amazon RDS
7 1 (1.49%) Azure SQL Database
7 1 (1.49%) Oracle Database
7 1 (1.49%) Redis
Development Applications
1 17 (25.37%) Jenkins
2 3 (4.48%) Cucumber
2 3 (4.48%) IntelliJ
2 3 (4.48%) JUnit
2 3 (4.48%) Mockito
3 2 (2.99%) Maven
3 2 (2.99%) TeamCity
3 2 (2.99%) Travis CI
4 1 (1.49%) Git (software)
4 1 (1.49%) Octopus Deploy
4 1 (1.49%) Team Foundation Server
General
1 3 (4.48%) Finance
2 1 (1.49%) Banking
2 1 (1.49%) Digital Economy
2 1 (1.49%) Financial Institution
2 1 (1.49%) French Language
2 1 (1.49%) Legal
2 1 (1.49%) Marketing
2 1 (1.49%) Retail
2 1 (1.49%) Spanish Language
Job Titles
1 21 (31.34%) DevOps Engineer
2 12 (17.91%) Developer
3 10 (14.93%) Java Engineer
4 6 (8.96%) Java Developer
5 5 (7.46%) Architect
6 4 (5.97%) DBA
6 4 (5.97%) Front End Developer (Client-Side Developer)
6 4 (5.97%) Senior DevOps
6 4 (5.97%) Senior DevOps Engineer
6 4 (5.97%) SQL DBA
7 3 (4.48%) Data Centre Engineer
7 3 (4.48%) Infrastructure Engineer
7 3 (4.48%) JavaScript Developer
7 3 (4.48%) React Developer
7 3 (4.48%) SQL Server DBA
8 2 (2.99%) Cisco Engineer
8 2 (2.99%) Cisco Network Engineer
8 2 (2.99%) Consultant
8 2 (2.99%) Enterprise Architect
8 2 (2.99%) Solutions Architect
Libraries, Frameworks & Software Standards
1 16 (23.88%) Kafka
2 8 (11.94%) RESTful
3 5 (7.46%) CSS
3 5 (7.46%) HTML
3 5 (7.46%) Spring
4 4 (5.97%) AngularJS
4 4 (5.97%) Web Services
5 3 (4.48%) Dropwizard
5 3 (4.48%) Elastic Stack
5 3 (4.48%) React
6 2 (2.99%) 802.1X
6 2 (2.99%) REST
6 2 (2.99%) Sensu
7 1 (1.49%) ASP.NET MVC
7 1 (1.49%) ASP.NET Web API
7 1 (1.49%) CSS3
7 1 (1.49%) HTML5
7 1 (1.49%) Node.js
7 1 (1.49%) RabbitMQ
7 1 (1.49%) Ruby on Rails
Miscellaneous
1 14 (20.90%) Device Driver
2 9 (13.43%) Fixed Income
2 9 (13.43%) Foreign Exchange (FX)
3 6 (8.96%) Data Centre
4 4 (5.97%) Greenfield Project
5 3 (4.48%) Algorithms
5 3 (4.48%) Analytical Skills
5 3 (4.48%) Replication
5 3 (4.48%) RIA
6 2 (2.99%) Cloud Native
6 2 (2.99%) Computer Science
6 2 (2.99%) Fintech
6 2 (2.99%) Public Cloud
7 1 (1.49%) Clustering
7 1 (1.49%) Credit Risk
7 1 (1.49%) Data Structures
7 1 (1.49%) Enterprise Software
7 1 (1.49%) Management Information System
7 1 (1.49%) Self-Motivation
7 1 (1.49%) Virtual Team
Operating Systems
1 28 (41.79%) Linux
2 15 (22.39%) CentOS
2 15 (22.39%) Ubuntu
3 12 (17.91%) Windows
4 6 (8.96%) Windows Server
5 5 (7.46%) Unix
6 3 (4.48%) DC/OS
6 3 (4.48%) Red Hat Enterprise Linux
6 3 (4.48%) Windows Server 2008
7 2 (2.99%) Solaris
7 2 (2.99%) Windows Server 2003
8 1 (1.49%) Windows 10
8 1 (1.49%) Windows Server 2012
Processes & Methodologies
1 27 (40.30%) DevOps
2 26 (38.81%) Agile Software Development
3 16 (23.88%) Immutable Infrastructure
4 15 (22.39%) Low Latency
5 10 (14.93%) Microservices
6 9 (13.43%) Electronic Trading
6 9 (13.43%) Multithreading
6 9 (13.43%) TDD
7 7 (10.45%) Analytics
7 7 (10.45%) Open Source
7 7 (10.45%) Performance Tuning
8 5 (7.46%) Continuous Integration
8 5 (7.46%) Disaster Recovery
8 5 (7.46%) Migration
9 4 (5.97%) BDD
9 4 (5.97%) Domain-Driven Design
9 4 (5.97%) Pair Programming
9 4 (5.97%) Software Engineering
9 4 (5.97%) Test Automation
9 4 (5.97%) Unit Testing
Programming Languages
1 22 (32.84%) Java
2 21 (31.34%) Python
3 20 (29.85%) Bash Shell
4 14 (20.90%) Go
5 13 (19.40%) SQL
6 7 (10.45%) JavaScript
7 6 (8.96%) Scala
8 4 (5.97%) Groovy
8 4 (5.97%) Shell Script
9 3 (4.48%) ES6
9 3 (4.48%) Ruby
10 2 (2.99%) C#
10 2 (2.99%) Perl
10 2 (2.99%) PowerShell
11 1 (1.49%) C++
11 1 (1.49%) Java 8
11 1 (1.49%) PL/SQL
11 1 (1.49%) T-SQL
11 1 (1.49%) TypeScript
Qualifications
1 2 (2.99%) Cisco Certification
1 2 (2.99%) Degree
1 2 (2.99%) MCSA
1 2 (2.99%) Microsoft Certification
2 1 (1.49%) CCNA
2 1 (1.49%) CCNP
2 1 (1.49%) ITIL Certification
2 1 (1.49%) Security Cleared
Quality Assurance & Compliance
1 1 (1.49%) Data Quality
1 1 (1.49%) Sarbanes-Oxley
System Software
1 18 (26.87%) Docker
2 6 (8.96%) Active Directory
3 3 (4.48%) HDFS
3 3 (4.48%) VMware Infrastructure
4 2 (2.99%) Hyper-V
4 2 (2.99%) vSphere
5 1 (1.49%) BitLocker
5 1 (1.49%) Microsoft App-V
5 1 (1.49%) Varnish
5 1 (1.49%) vCloud
5 1 (1.49%) Virtual Machines
5 1 (1.49%) VMware ESXi
Systems Management
1 17 (25.37%) Grafana
2 14 (20.90%) Icinga
2 14 (20.90%) Nagios
2 14 (20.90%) Prometheus
3 7 (10.45%) Kubernetes
4 3 (4.48%) Ansible
4 3 (4.48%) Kibana
4 3 (4.48%) logstash
4 3 (4.48%) Mesos
4 3 (4.48%) Opscode Chef
4 3 (4.48%) Puppet
5 2 (2.99%) Capistrano
5 2 (2.99%) Hadoop YARN
5 2 (2.99%) SCCM
5 2 (2.99%) SCOM
6 1 (1.49%) Microsoft Intune
6 1 (1.49%) vCenter Server
6 1 (1.49%) vRealize
6 1 (1.49%) WSUS
6 1 (1.49%) ZABBIX
Vendors
1 17 (25.37%) Red Hat
2 16 (23.88%) Google
3 7 (10.45%) Splunk
4 6 (8.96%) Cisco
4 6 (8.96%) Microsoft
4 6 (8.96%) VMware
5 3 (4.48%) AppDynamics
5 3 (4.48%) F5
5 3 (4.48%) New Relic
6 2 (2.99%) Fortinet
6 2 (2.99%) IDERA
6 2 (2.99%) Veeam
7 1 (1.49%) Dell
7 1 (1.49%) EqualLogic
7 1 (1.49%) HP
7 1 (1.49%) Ivanti
7 1 (1.49%) Juniper
7 1 (1.49%) Oracle
7 1 (1.49%) Ruckus Wireless
7 1 (1.49%) SolarWinds