Period
to 28 October 2021

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 28 October 2021 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
28 Oct 2021
Same period 2020 Same period 2019
Rank 148 78 187
Rank change year-on-year -70 +109 -12
Contract jobs citing High Availability 35 41 48
As % of all contract jobs advertised in the City of London 0.89% 2.28% 0.80%
As % of the Processes & Methodologies category 0.98% 2.55% 0.89%
Number of daily rates quoted 29 32 38
10th Percentile £442 £408 £411
25th Percentile £506 £472 £500
Median daily rate (50th Percentile) £640 £520 £550
Median % change year-on-year +23.08% -5.45% -
75th Percentile £712 £638 £650
90th Percentile £797 £650 £680
Central London median daily rate £633 £520 £550
% change year-on-year +21.63% -5.45% -
Number of hourly rates quoted 0 0 1
Median hourly rate - - £52.00
Central London median hourly rate - - £52.00

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 3,565 1,606 5,405
As % of all contract IT jobs advertised in the City of London 91.13% 89.32% 90.57%
Number of daily rates quoted 2,711 1,201 4,318
10th Percentile £364 £313 £325
25th Percentile £463 £413 £425
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +3.96%
75th Percentile £650 £600 £600
90th Percentile £750 £675 £680
Central London median daily rate £550 £523 £513
% change year-on-year +5.26% +1.95% +2.50%
Number of hourly rates quoted 32 31 61
10th Percentile £15.14 £15.00 £12.00
25th Percentile £20.94 £18.75 £12.76
Median hourly rate £32.20 £32.00 £19.00
Median % change year-on-year +0.63% +68.42% +1.60%
75th Percentile £42.38 £43.00 £26.00
90th Percentile £62.65 £47.75 £49.31
Central London median hourly rate £32.45 £30.95 £20.42
% change year-on-year +4.86% +51.58% +9.17%

High Availability
Job Vacancy Trend in the City of London

Job postings citing High Availability as a proportion 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

3-month moving average daily rate quoted in jobs citing High Availability in the City of London.

Daily rate trend for High Availability in the City of London

High Availability
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing High Availability in the City of London over the 6 months to 28 October 2021.

Daily rate histogram for High Availability in the City of London

High Availability
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing High Availability in the City of London.

Hourly rate trend for High Availability in the City of London

For the 6 months to 28 October 2021, 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 13 (37.14%) Java
1 13 (37.14%) Microservices
2 11 (31.43%) Continuous Integration
2 11 (31.43%) Agile Software Development
3 10 (28.57%) Spring
3 10 (28.57%) Spring Boot
3 10 (28.57%) Low Latency
4 9 (25.71%) Banking
5 8 (22.86%) Finance
5 8 (22.86%) Windows
5 8 (22.86%) Multithreading
6 7 (20.00%) Jenkins
6 7 (20.00%) Docker
6 7 (20.00%) Kubernetes
6 7 (20.00%) Active Directory
6 7 (20.00%) Migration
7 6 (17.14%) Subversion
7 6 (17.14%) Foreign Exchange (FX)
7 6 (17.14%) OO
7 6 (17.14%) E-Commerce
7 6 (17.14%) Python
7 6 (17.14%) DevOps
7 6 (17.14%) REST
8 5 (14.29%) Non-Functional Testing
8 5 (14.29%) Hazelcast
8 5 (14.29%) BDD
8 5 (14.29%) Electronic Trading
8 5 (14.29%) Unit Testing
8 5 (14.29%) Scala
8 5 (14.29%) Azure

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 4 (11.43%) SharePoint
2 3 (8.57%) Confluence
3 1 (2.86%) Elasticsearch
3 1 (2.86%) MS Exchange
Cloud Services
1 5 (14.29%) AWS
1 5 (14.29%) Azure
2 4 (11.43%) GitHub
2 4 (11.43%) PaaS
2 4 (11.43%) SaaS
3 3 (8.57%) Amazon ECS
4 2 (5.71%) AWS CloudFormation
4 2 (5.71%) GCP
4 2 (5.71%) IaaS
5 1 (2.86%) AWS Fargate
5 1 (2.86%) Azure Active Directory
5 1 (2.86%) Cloud Computing
5 1 (2.86%) Microsoft 365
5 1 (2.86%) Mimecast
5 1 (2.86%) Serverless
Communications & Networking
1 5 (14.29%) TCP/IP
2 4 (11.43%) DNS
2 4 (11.43%) Kerberos
3 1 (2.86%) DHCP
3 1 (2.86%) Radio Access Network
Database & Business Intelligence
1 5 (14.29%) Hazelcast
2 3 (8.57%) MongoDB
2 3 (8.57%) SQL Server
3 2 (5.71%) NoSQL
4 1 (2.86%) Data Mart
4 1 (2.86%) Oracle Database
4 1 (2.86%) Oracle Database 11g
4 1 (2.86%) Oracle Database 12c
Development Applications
1 7 (20.00%) Jenkins
2 6 (17.14%) Subversion
3 5 (14.29%) Gatling
4 4 (11.43%) Git (software)
4 4 (11.43%) Maven
5 3 (8.57%) JIRA
5 3 (8.57%) TeamCity
6 1 (2.86%) Artifactory
6 1 (2.86%) CMake
6 1 (2.86%) Serena SBM
General
1 9 (25.71%) Banking
2 8 (22.86%) Finance
3 4 (11.43%) International Banking
4 2 (5.71%) Investment Banking
4 2 (5.71%) Law
4 2 (5.71%) Social Skills
5 1 (2.86%) Billing
5 1 (2.86%) Public Sector
5 1 (2.86%) Telecoms
Job Titles
1 14 (40.00%) Developer
2 7 (20.00%) Java Developer
3 5 (14.29%) E-Commerce Developer
3 5 (14.29%) Java E-Commerce Developer
3 5 (14.29%) Low Latency Java Developer
3 5 (14.29%) Scala Developer
4 3 (8.57%) Architect
4 3 (8.57%) Java Engineer
4 3 (8.57%) Site Engineer
4 3 (8.57%) Site Reliability Engineer
5 2 (5.71%) Designer
5 2 (5.71%) Head of Technology
5 2 (5.71%) Infrastructure Architect
5 2 (5.71%) Infrastructure Manager
5 2 (5.71%) Infrastructure Project Manager
5 2 (5.71%) IT Infrastructure Manager
5 2 (5.71%) IT Infrastructure Project Manager
5 2 (5.71%) IT Manager
5 2 (5.71%) IT Project Manager
5 2 (5.71%) Project Manager
Libraries, Frameworks & Software Standards
1 10 (28.57%) Spring
1 10 (28.57%) Spring Boot
2 6 (17.14%) REST
3 4 (11.43%) LDAP
4 3 (8.57%) JMS
4 3 (8.57%) Kafka
4 3 (8.57%) Middleware
4 3 (8.57%) React
4 3 (8.57%) RESTful
5 2 (5.71%) .NET
5 2 (5.71%) HTML
5 2 (5.71%) HTML5
5 2 (5.71%) Redux
5 2 (5.71%) Web Services
6 1 (2.86%) JSON
6 1 (2.86%) Murex MxML
6 1 (2.86%) Node.js
6 1 (2.86%) SAML
6 1 (2.86%) XML
6 1 (2.86%) XSLT
Miscellaneous
1 6 (17.14%) Foreign Exchange (FX)
2 5 (14.29%) Clustering
2 5 (14.29%) Management Information System
3 3 (8.57%) Data Structures
3 3 (8.57%) Replication
4 2 (5.71%) Enterprise Software
4 2 (5.71%) Legacy Systems
5 1 (2.86%) User Experience
Operating Systems
1 8 (22.86%) Windows
2 4 (11.43%) Windows Server 2012
2 4 (11.43%) Windows Server 2016
2 4 (11.43%) Windows Server 2019
3 3 (8.57%) Linux
3 3 (8.57%) Unix
3 3 (8.57%) Windows Server
3 3 (8.57%) Windows Server 2008
4 2 (5.71%) Solaris
5 1 (2.86%) Red Hat Enterprise Linux
Processes & Methodologies
1 13 (37.14%) Microservices
2 11 (31.43%) Agile Software Development
2 11 (31.43%) Continuous Integration
3 10 (28.57%) Low Latency
4 8 (22.86%) Multithreading
5 7 (20.00%) Migration
6 6 (17.14%) DevOps
6 6 (17.14%) E-Commerce
6 6 (17.14%) OO
7 5 (14.29%) Acceptance Criteria
7 5 (14.29%) BDD
7 5 (14.29%) Electronic Trading
7 5 (14.29%) Non-Functional Testing
7 5 (14.29%) Pair Programming
7 5 (14.29%) Release Management
7 5 (14.29%) Software Delivery
7 5 (14.29%) TDD
7 5 (14.29%) Unit Testing
8 4 (11.43%) Configuration Management
8 4 (11.43%) OOP
Programming Languages
1 13 (37.14%) Java
2 6 (17.14%) Python
3 5 (14.29%) Scala
4 3 (8.57%) JavaScript
4 3 (8.57%) PowerShell
4 3 (8.57%) SQL
5 2 (5.71%) C
5 2 (5.71%) C++
6 1 (2.86%) Bash Shell
6 1 (2.86%) C#
6 1 (2.86%) Perl
6 1 (2.86%) PL/SQL
6 1 (2.86%) Ruby
6 1 (2.86%) Shell Script
6 1 (2.86%) VBA
Qualifications
1 3 (8.57%) Degree
2 2 (5.71%) CCNA
2 2 (5.71%) Cisco Certification
2 2 (5.71%) CISSP
2 2 (5.71%) MCSE
2 2 (5.71%) Microsoft Certification
3 1 (2.86%) Computer Science Degree
3 1 (2.86%) Master's Degree
Quality Assurance & Compliance
1 2 (5.71%) QA
2 1 (2.86%) GDPR
2 1 (2.86%) Sarbanes-Oxley
System Software
1 7 (20.00%) Active Directory
1 7 (20.00%) Docker
2 4 (11.43%) VMware ESXi
2 4 (11.43%) VMware Infrastructure
3 2 (5.71%) XenApp
3 2 (5.71%) XenDesktop
4 1 (2.86%) NFS
4 1 (2.86%) Oracle RAC
4 1 (2.86%) Veritas File System
4 1 (2.86%) Veritas Volume Manager
Systems Management
1 7 (20.00%) Kubernetes
2 5 (14.29%) Ansible
2 5 (14.29%) Grafana
2 5 (14.29%) Prometheus
3 3 (8.57%) Control-M
3 3 (8.57%) EMC NetWorker
3 3 (8.57%) Netcool
3 3 (8.57%) QRadar
3 3 (8.57%) Terraform
3 3 (8.57%) Tivoli
3 3 (8.57%) Tivoli Storage Manager
4 2 (5.71%) Microsoft Clustering
4 2 (5.71%) Opscode Chef
4 2 (5.71%) Puppet
4 2 (5.71%) Red Hat Satellite
4 2 (5.71%) SCCM
4 2 (5.71%) SCOM
5 1 (2.86%) Data Guard
5 1 (2.86%) Icinga
5 1 (2.86%) ITRS Geneos
Vendors
1 5 (14.29%) Microsoft
1 5 (14.29%) Oracle
2 4 (11.43%) VMware
3 3 (8.57%) BMC
3 3 (8.57%) Cisco
3 3 (8.57%) Citrix
3 3 (8.57%) CyberArk
3 3 (8.57%) EMC
3 3 (8.57%) IBM
3 3 (8.57%) Qualys
3 3 (8.57%) SaltStack
3 3 (8.57%) ServiceNow
3 3 (8.57%) Splunk
4 2 (5.71%) Altiris
4 2 (5.71%) Red Hat
4 2 (5.71%) SolarWinds
5 1 (2.86%) Ivanti
5 1 (2.86%) McAfee
5 1 (2.86%) Serena
5 1 (2.86%) Symantec