Period
to 16 August 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 16 August 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
16 Aug 2018
Same period 2017 Same period 2016
Rank 186 149 127
Rank change year-on-year -37 -22 +36
Contract jobs citing High Availability 74 96 122
As % of all contract IT jobs advertised in the City of London 1.06% 1.46% 1.79%
As % of the Processes & Methodologies category 1.22% 1.64% 2.04%
Number of daily rates quoted 67 66 106
City of London median daily rate £550 £505 £475
Median daily rate % change year-on-year +8.91% +6.32% -
10th Percentile £450 £375 £363
90th Percentile £638 £678 £635
Central London median daily rate £550 £500 £475
% change year-on-year +10.00% +5.26% -4.04%
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 6,089 5,860 5,975
As % of all contract IT jobs advertised in the City of London 87.28% 88.88% 87.87%
Number of daily rates quoted 4,819 4,529 4,810
City of London median daily rate £513 £500 £475
Median daily rate % change year-on-year +2.50% +5.26% +5.56%
10th Percentile £331 £324 £313
90th Percentile £688 £675 £650
Central London median daily rate £500 £500 £473
% change year-on-year - +5.82% +5.00%
Number of hourly rates quoted 106 57 45
City of London median hourly rate £18.70 £20.50 £20.00
Median hourly rate % change year-on-year -8.78% +2.50% -4.76%
10th Percentile £13.28 £13.34 £11.25
90th Percentile £29.28 £31.05 £45.63
Central London median hourly rate £18.70 £18.70 £20.00
% change year-on-year - -6.50% -4.76%

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 16 August 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 16 August 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 40 (54.05%) Agile Software Development
1 40 (54.05%) DevOps
2 32 (43.24%) Bash Shell
2 32 (43.24%) Docker
3 31 (41.89%) Linux
4 26 (35.14%) Grafana
5 25 (33.78%) Python
6 24 (32.43%) Red Hat
6 24 (32.43%) Site Reliability Engineering
7 23 (31.08%) Java
8 22 (29.73%) Google
8 22 (29.73%) Kafka
8 22 (29.73%) Jenkins
8 22 (29.73%) MongoDB
8 22 (29.73%) CentOS
9 21 (28.38%) GitHub
9 21 (28.38%) Go
9 21 (28.38%) Ubuntu
9 21 (28.38%) Device Driver
9 21 (28.38%) Nagios
9 21 (28.38%) Immutable Infrastructure
9 21 (28.38%) Prometheus
9 21 (28.38%) Icinga
10 13 (17.57%) SQL
10 13 (17.57%) Microservices
10 13 (17.57%) Kubernetes
11 12 (16.22%) TDD
11 12 (16.22%) Test Automation
12 10 (13.51%) SQL Server
12 10 (13.51%) Low Latency

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 (6.76%) Elasticsearch
2 4 (5.41%) Apache Spark
3 2 (2.70%) IIS
3 2 (2.70%) SharePoint
4 1 (1.35%) Apache
4 1 (1.35%) Confluence
4 1 (1.35%) NServiceBus
Applications
1 1 (1.35%) Microsoft Office
Business Applications
1 1 (1.35%) Summit
Cloud Services
1 21 (28.38%) GitHub
2 9 (12.16%) Microsoft Azure
3 7 (9.46%) Amazon AWS
4 5 (6.76%) Akamai
4 5 (6.76%) AWS Elastic Beanstalk
5 3 (4.05%) Azure Active Directory
5 3 (4.05%) IaaS
5 3 (4.05%) Office 365
5 3 (4.05%) PaaS
6 1 (1.35%) Amazon CloudWatch
6 1 (1.35%) Google Cloud Platform
Communications & Networking
1 5 (6.76%) SAN
2 4 (5.41%) DNS
3 3 (4.05%) DHCP
3 3 (4.05%) Firewall
3 3 (4.05%) NAS
3 3 (4.05%) WAN
4 2 (2.70%) LAN
4 2 (2.70%) TCP/IP
5 1 (1.35%) HTTP
5 1 (1.35%) Internet
5 1 (1.35%) IPsec
5 1 (1.35%) Unified Communications
5 1 (1.35%) VLAN
5 1 (1.35%) VPN
Database & Business Intelligence
1 22 (29.73%) MongoDB
2 10 (13.51%) SQL Server
3 9 (12.16%) NoSQL
4 5 (6.76%) Couchbase
4 5 (6.76%) Hadoop
4 5 (6.76%) Redis
5 4 (5.41%) Big Data
5 4 (5.41%) Data Warehouse
5 4 (5.41%) SQL Server Integration Services
6 3 (4.05%) Azure SQL Database
6 3 (4.05%) PostgreSQL
7 2 (2.70%) Apache Kudu
7 2 (2.70%) Power BI
7 2 (2.70%) Relational Database
7 2 (2.70%) SQL Server 2008
7 2 (2.70%) SQL Server 2012
7 2 (2.70%) SQL Server Reporting Services
8 1 (1.35%) Blockchain
8 1 (1.35%) SQL Server 2005
8 1 (1.35%) SQL Server 2016
Development Applications
1 22 (29.73%) Jenkins
2 6 (8.11%) Cucumber
2 6 (8.11%) Git (software)
2 6 (8.11%) TeamCity
3 5 (6.76%) IntelliJ
3 5 (6.76%) JUnit
3 5 (6.76%) Mockito
4 2 (2.70%) JIRA
5 1 (1.35%) Capybara
5 1 (1.35%) git-flow
5 1 (1.35%) JMeter
5 1 (1.35%) Octopus Deploy
5 1 (1.35%) Selenium
5 1 (1.35%) Subversion
5 1 (1.35%) Team Foundation Server
5 1 (1.35%) Visual Studio Team System
5 1 (1.35%) WebDriver
General
1 5 (6.76%) Finance
2 3 (4.05%) Banking
3 2 (2.70%) Retail
4 1 (1.35%) French Language
4 1 (1.35%) Games
4 1 (1.35%) Legal
Job Titles
1 29 (39.19%) DevOps Engineer
2 17 (22.97%) Developer
3 11 (14.86%) Java Developer
4 7 (9.46%) Java Engineer
5 5 (6.76%) DBA
5 5 (6.76%) SQL DBA
6 3 (4.05%) Architect
6 3 (4.05%) Consultant
6 3 (4.05%) Solutions Architect
6 3 (4.05%) SQL Developer
6 3 (4.05%) SQL Server Consultant
7 2 (2.70%) Azure DevOps
7 2 (2.70%) Cloud Architect
7 2 (2.70%) Cloud Solutions Architect
7 2 (2.70%) Database Developer
7 2 (2.70%) Database Engineer
7 2 (2.70%) Infrastructure Engineer
7 2 (2.70%) Site Engineer
7 2 (2.70%) Site Reliability Engineer
7 2 (2.70%) SQL Database Developer
Libraries, Frameworks & Software Standards
1 22 (29.73%) Kafka
2 8 (10.81%) RESTful
3 6 (8.11%) Node.js
3 6 (8.11%) Spring
4 5 (6.76%) Dropwizard
4 5 (6.76%) Elastic Stack
5 3 (4.05%) .NET
5 3 (4.05%) AngularJS
5 3 (4.05%) Grails
5 3 (4.05%) JSON
5 3 (4.05%) Web Services
6 2 (2.70%) CSS
6 2 (2.70%) HTML
6 2 (2.70%) Middleware
6 2 (2.70%) REST
7 1 (1.35%) ASP.NET Web API
7 1 (1.35%) CSS3
7 1 (1.35%) Gherkin
7 1 (1.35%) React
7 1 (1.35%) Spring Boot
Miscellaneous
1 21 (28.38%) Device Driver
2 7 (9.46%) Fixed Income
2 7 (9.46%) Foreign Exchange (FX)
3 5 (6.76%) Data Centre
3 5 (6.76%) Greenfield Project
4 3 (4.05%) Data Structures
4 3 (4.05%) Fintech
4 3 (4.05%) Public Cloud
5 2 (2.70%) Algorithms
5 2 (2.70%) Cloud Native
5 2 (2.70%) Clustering
5 2 (2.70%) Replication
5 2 (2.70%) User Experience
6 1 (1.35%) BYOD
6 1 (1.35%) Credit Risk
6 1 (1.35%) Market Risk
6 1 (1.35%) RIA
6 1 (1.35%) Self-Motivation
6 1 (1.35%) SWIFT
6 1 (1.35%) Video on Demand
Operating Systems
1 31 (41.89%) Linux
2 22 (29.73%) CentOS
3 21 (28.38%) Ubuntu
4 7 (9.46%) Windows
5 6 (8.11%) Unix
6 5 (6.76%) Windows Server
7 2 (2.70%) DC/OS
7 2 (2.70%) Red Hat Enterprise Linux
8 1 (1.35%) Mac OS
8 1 (1.35%) Oracle Linux
8 1 (1.35%) Solaris
8 1 (1.35%) Windows 10
8 1 (1.35%) Windows 7
8 1 (1.35%) Windows 8
8 1 (1.35%) Windows Server 2008
Processes & Methodologies
1 40 (54.05%) Agile Software Development
1 40 (54.05%) DevOps
2 24 (32.43%) Site Reliability Engineering
3 21 (28.38%) Immutable Infrastructure
4 13 (17.57%) Microservices
5 12 (16.22%) TDD
5 12 (16.22%) Test Automation
6 10 (13.51%) Low Latency
7 9 (12.16%) BDD
8 8 (10.81%) Continuous Integration
8 8 (10.81%) Multithreading
8 8 (10.81%) Pair Programming
9 7 (9.46%) Analytics
9 7 (9.46%) Electronic Trading
9 7 (9.46%) Open Source
10 6 (8.11%) Kanban
10 6 (8.11%) Migration
10 6 (8.11%) Performance Tuning
10 6 (8.11%) Scrum
11 5 (6.76%) ETL
Programming Languages
1 32 (43.24%) Bash Shell
2 25 (33.78%) Python
3 23 (31.08%) Java
4 21 (28.38%) Go
5 13 (17.57%) SQL
6 8 (10.81%) Groovy
6 8 (10.81%) Scala
7 5 (6.76%) PowerShell
7 5 (6.76%) Shell Script
8 3 (4.05%) JavaScript
8 3 (4.05%) T-SQL
9 2 (2.70%) C#
9 2 (2.70%) Ruby
10 1 (1.35%) C++
10 1 (1.35%) ES6
10 1 (1.35%) Java 8
Qualifications
1 3 (4.05%) Cisco Certification
2 2 (2.70%) MCSA
2 2 (2.70%) Microsoft Certification
3 1 (1.35%) CCNA
3 1 (1.35%) Degree
3 1 (1.35%) ITIL Certification
Quality Assurance & Compliance
1 2 (2.70%) Data Quality
2 1 (1.35%) QA
System Software
1 32 (43.24%) Docker
2 8 (10.81%) Active Directory
3 5 (6.76%) Varnish
3 5 (6.76%) VMware Infrastructure
4 3 (4.05%) HDFS
5 2 (2.70%) Hyper-V
5 2 (2.70%) vSphere
6 1 (1.35%) VMware ESXi
Systems Management
1 26 (35.14%) Grafana
2 21 (28.38%) Icinga
2 21 (28.38%) Nagios
2 21 (28.38%) Prometheus
3 13 (17.57%) Kubernetes
4 5 (6.76%) Kibana
4 5 (6.76%) logstash
5 2 (2.70%) Mesos
5 2 (2.70%) Microsoft Clustering
5 2 (2.70%) SCCM
5 2 (2.70%) SCOM
6 1 (1.35%) Ansible
6 1 (1.35%) Cisco CUCM
6 1 (1.35%) Hadoop YARN
6 1 (1.35%) Microsoft Intune
6 1 (1.35%) NetBackup
6 1 (1.35%) SCSM
6 1 (1.35%) SCVMM
6 1 (1.35%) vCenter Server
6 1 (1.35%) ZABBIX
Vendors
1 24 (32.43%) Red Hat
2 22 (29.73%) Google
3 8 (10.81%) Microsoft
4 6 (8.11%) New Relic
4 6 (8.11%) Splunk
5 5 (6.76%) AppDynamics
5 5 (6.76%) VMware
6 4 (5.41%) Cisco
7 2 (2.70%) Citrix
7 2 (2.70%) Oracle
8 1 (1.35%) Dell
8 1 (1.35%) F5
8 1 (1.35%) HP
8 1 (1.35%) Juniper
8 1 (1.35%) NetApp
8 1 (1.35%) PagerDuty
8 1 (1.35%) Ruckus Wireless
8 1 (1.35%) SolarWinds
8 1 (1.35%) Symantec
8 1 (1.35%) Veritas