Period
to 16 May 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 16 May 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
16 May 2021
Same period 2020 Same period 2019
Rank 109 110 193
Rank change year-on-year +1 +83 +1
Contract jobs citing High Availability 44 45 48
As % of all contract jobs advertised in the City of London 1.59% 1.35% 0.74%
As % of the Processes & Methodologies category 1.76% 1.55% 0.83%
Number of daily rates quoted 35 32 38
10th Percentile £409 £412 £363
25th Percentile £469 £450 £425
Median daily rate (50th Percentile) £520 £513 £513
Median % change year-on-year +1.46% - -6.82%
75th Percentile £700 £650 £588
90th Percentile £727 £675 £653
Central London median daily rate £525 £525 £531
% change year-on-year - -1.18% -3.41%

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 2,504 2,901 5,808
As % of all contract IT jobs advertised in the City of London 90.76% 87.25% 89.81%
Number of daily rates quoted 1,819 2,158 4,498
10th Percentile £338 £331 £338
25th Percentile £431 £413 £425
Median daily rate (50th Percentile) £525 £515 £525
Median % change year-on-year +1.94% -1.90% +3.96%
75th Percentile £625 £603 £600
90th Percentile £701 £675 £675
Central London median daily rate £525 £500 £525
% change year-on-year +5.00% -4.76% +5.00%
Number of hourly rates quoted 26 51 53
10th Percentile £8.00 £12.42 £11.25
25th Percentile £12.09 £14.19 £13.48
Median hourly rate £20.00 £24.00 £20.00
Median % change year-on-year -16.67% +20.00% +6.95%
75th Percentile £28.38 £39.00 £37.50
90th Percentile £40.13 £52.25 £44.44
Central London median hourly rate £20.00 £24.12 £20.00
% change year-on-year -17.08% +20.60% -

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 16 May 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 16 May 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 23 (52.27%) Java
2 18 (40.91%) Linux
3 17 (38.64%) Python
3 17 (38.64%) Microservices
4 16 (36.36%) AWS
5 14 (31.82%) DevOps
5 14 (31.82%) Agile Software Development
5 14 (31.82%) Banking
5 14 (31.82%) Spring
6 13 (29.55%) Azure
7 12 (27.27%) Continuous Integration
7 12 (27.27%) Jenkins
7 12 (27.27%) Clustering
8 11 (25.00%) Disaster Recovery
8 11 (25.00%) Oracle
8 11 (25.00%) Enterprise Software
8 11 (25.00%) Low Latency
8 11 (25.00%) Performance Tuning
8 11 (25.00%) REST
9 10 (22.73%) OO
9 10 (22.73%) Finance
10 9 (20.45%) Middleware
10 9 (20.45%) Migration
10 9 (20.45%) Scrum
10 9 (20.45%) Active Directory
10 9 (20.45%) PowerShell
10 9 (20.45%) Multithreading
11 8 (18.18%) Relational Database
11 8 (18.18%) Spring Boot
11 8 (18.18%) Web Development

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 6 (13.64%) Apache
1 6 (13.64%) Red Hat Fuse
1 6 (13.64%) SharePoint
2 3 (6.82%) Confluence
3 2 (4.55%) MS Exchange
4 1 (2.27%) Elasticsearch
4 1 (2.27%) Mule
4 1 (2.27%) Mule ESB
Applications
1 1 (2.27%) Microsoft Office
Cloud Services
1 16 (36.36%) AWS
2 13 (29.55%) Azure
3 8 (18.18%) PaaS
4 6 (13.64%) GCP
4 6 (13.64%) GitHub
4 6 (13.64%) IaaS
4 6 (13.64%) SaaS
5 4 (9.09%) Amazon ECS
5 4 (9.09%) AWS CloudFormation
6 3 (6.82%) Amazon ElastiCache
6 3 (6.82%) Azure Active Directory
6 3 (6.82%) Microsoft 365
7 2 (4.55%) Amazon EC2
7 2 (4.55%) Amazon Kinesis
7 2 (4.55%) Amazon S3
7 2 (4.55%) AWS Lambda
7 2 (4.55%) Datadog
7 2 (4.55%) Serverless
7 2 (4.55%) Virtual Private Cloud
8 1 (2.27%) Azure ExpressRoute
Communications & Networking
1 6 (13.64%) TCP/IP
2 3 (6.82%) DNS
2 3 (6.82%) Kerberos
3 2 (4.55%) Firewall
3 2 (4.55%) Multicast
3 2 (4.55%) Network Security
4 1 (2.27%) HTTPS
4 1 (2.27%) NetScaler
4 1 (2.27%) Software-Defined Networking
4 1 (2.27%) VLAN
4 1 (2.27%) VPN
4 1 (2.27%) Wireless
Database & Business Intelligence
1 8 (18.18%) Relational Database
2 5 (11.36%) SQL Server
3 4 (9.09%) Hazelcast
3 4 (9.09%) PostgreSQL
4 2 (4.55%) Amazon RDS
4 2 (4.55%) Data Warehouse
4 2 (4.55%) MySQL
4 2 (4.55%) Oracle Database
4 2 (4.55%) RDBMS
5 1 (2.27%) Amazon Aurora
5 1 (2.27%) Amazon Redshift
5 1 (2.27%) Big Data
5 1 (2.27%) Geospatial Data
5 1 (2.27%) GIS
5 1 (2.27%) MongoDB
5 1 (2.27%) NoSQL
5 1 (2.27%) Oracle Database 11g
5 1 (2.27%) Oracle Database 12c
5 1 (2.27%) Redis
5 1 (2.27%) SQLPlus
Development Applications
1 12 (27.27%) Jenkins
2 6 (13.64%) Git (software)
3 5 (11.36%) JIRA
4 4 (9.09%) Maven
5 3 (6.82%) Subversion
5 3 (6.82%) TeamCity
6 2 (4.55%) Atlassian Bamboo
6 2 (4.55%) Bitbucket
6 2 (4.55%) GCC
6 2 (4.55%) GDB
6 2 (4.55%) Gerrit
6 2 (4.55%) GitLab
7 1 (2.27%) Eclipse
7 1 (2.27%) Gradle
7 1 (2.27%) IntelliJ
7 1 (2.27%) JUnit
General
1 14 (31.82%) Banking
2 10 (22.73%) Finance
3 5 (11.36%) Law
4 4 (9.09%) Social Skills
5 2 (4.55%) Investment Banking
5 2 (4.55%) Legal
5 2 (4.55%) Retail
6 1 (2.27%) Analytical Skills
Job Titles
1 12 (27.27%) Developer
2 10 (22.73%) Architect
3 9 (20.45%) DevOps Engineer
4 8 (18.18%) Java Developer
5 6 (13.64%) Java Architect
5 6 (13.64%) Java Solutions Architect
5 6 (13.64%) Solutions Architect
6 4 (9.09%) Administrator
6 4 (9.09%) Azure Engineer
6 4 (9.09%) E-Commerce Developer
6 4 (9.09%) Java E-Commerce Developer
6 4 (9.09%) Low Latency Java Developer
7 3 (6.82%) Azure DevOps Engineer
7 3 (6.82%) Infrastructure Architect
7 3 (6.82%) Systems Administrator
8 2 (4.55%) C++ Pricing Developer
8 2 (4.55%) DBA
8 2 (4.55%) DevSecOps Engineer
8 2 (4.55%) Migration Engineer
8 2 (4.55%) Pricing Developer
Libraries, Frameworks & Software Standards
1 14 (31.82%) Spring
2 11 (25.00%) REST
3 9 (20.45%) Middleware
4 8 (18.18%) HTML
4 8 (18.18%) HTML5
4 8 (18.18%) JMS
4 8 (18.18%) Spring Boot
5 6 (13.64%) Ajax
5 6 (13.64%) AngularJS
5 6 (13.64%) Apache Camel
5 6 (13.64%) GWT
5 6 (13.64%) Hibernate
5 6 (13.64%) JDBC
5 6 (13.64%) jQuery
5 6 (13.64%) JSF
5 6 (13.64%) OSGi
6 4 (9.09%) Kafka
7 3 (6.82%) LDAP
7 3 (6.82%) Web Services
8 2 (4.55%) FIX Protocol
Miscellaneous
1 12 (27.27%) Clustering
2 11 (25.00%) Enterprise Software
3 6 (13.64%) Foreign Exchange (FX)
3 6 (13.64%) Replication
4 2 (4.55%) Management Information System
5 1 (2.27%) Blackberry
5 1 (2.27%) Data Centre
5 1 (2.27%) Data Structures
5 1 (2.27%) RIA
Operating Systems
1 18 (40.91%) Linux
2 8 (18.18%) Windows
3 5 (11.36%) Windows Server
3 5 (11.36%) Windows Server 2012
3 5 (11.36%) Windows Server 2016
3 5 (11.36%) Windows Server 2019
4 4 (9.09%) Unix
5 2 (4.55%) Red Hat Enterprise Linux
5 2 (4.55%) Solaris
5 2 (4.55%) Windows Server 2008
Processes & Methodologies
1 17 (38.64%) Microservices
2 14 (31.82%) Agile Software Development
2 14 (31.82%) DevOps
3 12 (27.27%) Continuous Integration
4 11 (25.00%) Disaster Recovery
4 11 (25.00%) Low Latency
4 11 (25.00%) Performance Tuning
5 10 (22.73%) OO
6 9 (20.45%) Migration
6 9 (20.45%) Multithreading
6 9 (20.45%) Scrum
7 8 (18.18%) Capacity Planning
7 8 (18.18%) Configuration Management
7 8 (18.18%) Scalability Testing
7 8 (18.18%) Web Development
8 7 (15.91%) Infrastructure Engineering
8 7 (15.91%) Open Source
9 6 (13.64%) Continuous Improvement
9 6 (13.64%) Root Cause Analysis
9 6 (13.64%) RUP
Programming Languages
1 23 (52.27%) Java
2 17 (38.64%) Python
3 9 (20.45%) PowerShell
4 8 (18.18%) JavaScript
5 6 (13.64%) Bash Shell
5 6 (13.64%) Java 8
6 3 (6.82%) Go
6 3 (6.82%) Ruby
6 3 (6.82%) Shell Script
7 2 (4.55%) C#
7 2 (4.55%) C++
7 2 (4.55%) Perl
7 2 (4.55%) Scala
7 2 (4.55%) SQL
8 1 (2.27%) Korn
8 1 (2.27%) PL/SQL
Qualifications
1 5 (11.36%) MCSE
1 5 (11.36%) Microsoft Certification
2 3 (6.82%) CCNA
2 3 (6.82%) Cisco Certification
2 3 (6.82%) CISSP
3 1 (2.27%) CCSA
3 1 (2.27%) Check Point Certification
3 1 (2.27%) SC Cleared
3 1 (2.27%) Security Cleared
Quality Assurance & Compliance
1 3 (6.82%) QA
2 2 (4.55%) GDPR
2 2 (4.55%) Sarbanes-Oxley
System Software
1 9 (20.45%) Active Directory
2 7 (15.91%) Docker
2 7 (15.91%) VMware Infrastructure
3 5 (11.36%) VMware ESXi
4 3 (6.82%) XenApp
4 3 (6.82%) XenDesktop
5 2 (4.55%) Hyper-V
5 2 (4.55%) NFS
5 2 (4.55%) Oracle RAC
5 2 (4.55%) Veritas File System
5 2 (4.55%) Veritas Volume Manager
5 2 (4.55%) Virtual Machines
5 2 (4.55%) Virtual Servers
Systems Management
1 7 (15.91%) Ansible
2 6 (13.64%) Terraform
3 5 (11.36%) Kubernetes
3 5 (11.36%) SCOM
4 4 (9.09%) SCCM
5 3 (6.82%) Control-M
5 3 (6.82%) EMC NetWorker
5 3 (6.82%) Netcool
5 3 (6.82%) QRadar
5 3 (6.82%) Tivoli
5 3 (6.82%) Tivoli Storage Manager
6 2 (4.55%) Failover Clustering
6 2 (4.55%) Grafana
6 2 (4.55%) Opscode Chef
6 2 (4.55%) Prometheus
6 2 (4.55%) Puppet
6 2 (4.55%) Red Hat Satellite
6 2 (4.55%) Salt
7 1 (2.27%) Icinga
7 1 (2.27%) Microsoft Clustering
Vendors
1 11 (25.00%) Oracle
2 7 (15.91%) VMware
3 6 (13.64%) Cisco
4 5 (11.36%) IBM
5 4 (9.09%) Citrix
5 4 (9.09%) Microsoft
5 4 (9.09%) Red Hat
6 3 (6.82%) BMC
6 3 (6.82%) CyberArk
6 3 (6.82%) EMC
6 3 (6.82%) Qualys
6 3 (6.82%) SolarWinds
6 3 (6.82%) Splunk
7 2 (4.55%) Dell
7 2 (4.55%) Juniper
7 2 (4.55%) SaltStack
7 2 (4.55%) Solace
8 1 (2.27%) Arista
8 1 (2.27%) CheckPoint
8 1 (2.27%) Symantec