Period
to 28 November 2020

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 November 2020 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 Nov 2020
Same period 2019 Same period 2018
Rank 82 176 191
Rank change year-on-year +94 +15 -18
Contract jobs citing High Availability 43 48 72
As % of all contract jobs advertised in the City of London 2.19% 0.83% 1.02%
As % of the Processes & Methodologies category 2.50% 0.93% 1.16%
Number of daily rates quoted 24 37 61
Median daily rate £500 £550 £518
Median daily rate % change year-on-year -9.09% +6.28% -1.43%
10th Percentile £407 £393 £383
90th Percentile £622 £698 £625
Central London median daily rate £500 £550 £550
% change year-on-year -9.09% - +4.76%
Number of hourly rates quoted 0 1 0
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 1,718 5,171 6,208
As % of all contract IT jobs advertised in the City of London 87.65% 89.60% 87.71%
Number of daily rates quoted 1,218 4,035 4,941
Median daily rate £525 £520 £511
Median daily rate % change year-on-year +0.96% +1.76% +0.20%
10th Percentile £313 £325 £325
90th Percentile £688 £688 £675
Central London median daily rate £520 £513 £510
% change year-on-year +1.46% +0.49% +2.00%
Number of hourly rates quoted 28 54 95
Median hourly rate £32.00 £20.42 £18.70
Median hourly rate % change year-on-year +56.75% +9.17% -6.50%
10th Percentile £14.59 £12.04 £13.31
90th Percentile £46.53 £53.30 £34.20
Median hourly rate £32.00 £21.00 £19.00
% change year-on-year +52.38% +10.53% -7.32%

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 November 2020.

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 November 2020, 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 25 (58.14%) Finance
1 25 (58.14%) Banking
2 22 (51.16%) AWS
3 21 (48.84%) Agile Software Development
4 19 (44.19%) Clustering
4 19 (44.19%) Oracle
4 19 (44.19%) Performance Tuning
5 18 (41.86%) Java
6 17 (39.53%) Enterprise Software
6 17 (39.53%) Continuous Integration
7 15 (34.88%) Microservices
7 15 (34.88%) Jenkins
8 14 (32.56%) PaaS
9 13 (30.23%) SaaS
9 13 (30.23%) Relational Database
9 13 (30.23%) JavaScript
9 13 (30.23%) HTML
9 13 (30.23%) SQL Server
9 13 (30.23%) Linux
9 13 (30.23%) Python
10 12 (27.91%) Spring
10 12 (27.91%) Web Development
10 12 (27.91%) REST
10 12 (27.91%) HTML5
10 12 (27.91%) Scalability Testing
11 11 (25.58%) Azure
12 10 (23.26%) PostgreSQL
12 10 (23.26%) Disaster Recovery
12 10 (23.26%) Open Source
12 10 (23.26%) IaaS

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 7 (16.28%) Apache
1 7 (16.28%) Red Hat Fuse
2 3 (6.98%) SharePoint
3 2 (4.65%) Confluence
4 1 (2.33%) Apache Spark
4 1 (2.33%) CMS
4 1 (2.33%) Elasticsearch
4 1 (2.33%) Exchange Server 2010
4 1 (2.33%) IIS
4 1 (2.33%) MS Exchange
4 1 (2.33%) Tomcat
4 1 (2.33%) WebLogic
Cloud Services
1 22 (51.16%) AWS
2 14 (32.56%) PaaS
3 13 (30.23%) SaaS
4 11 (25.58%) Azure
5 10 (23.26%) IaaS
6 8 (18.60%) GCP
7 7 (16.28%) Amazon ECS
8 6 (13.95%) Amazon EC2
8 6 (13.95%) Amazon ElastiCache
8 6 (13.95%) GitHub
9 5 (11.63%) Amazon Kinesis
9 5 (11.63%) Amazon S3
9 5 (11.63%) AWS CloudFormation
9 5 (11.63%) AWS Lambda
9 5 (11.63%) Cloud Computing
9 5 (11.63%) Serverless
9 5 (11.63%) Virtual Private Cloud
10 2 (4.65%) AWS Elastic Beanstalk
10 2 (4.65%) Datadog
10 2 (4.65%) npm
Communications & Networking
1 7 (16.28%) TCP/IP
2 6 (13.95%) Kerberos
3 4 (9.30%) DNS
4 3 (6.98%) DHCP
5 2 (4.65%) Firewall
6 1 (2.33%) BGP
6 1 (2.33%) Cisco ASA
6 1 (2.33%) F5 BIG-IP LTM
6 1 (2.33%) IPv4
6 1 (2.33%) NetScaler
6 1 (2.33%) NetScreen
6 1 (2.33%) SAN
6 1 (2.33%) SSL
Database & Business Intelligence
1 13 (30.23%) Relational Database
1 13 (30.23%) SQL Server
2 10 (23.26%) PostgreSQL
3 9 (20.93%) RDBMS
4 6 (13.95%) Amazon RDS
4 6 (13.95%) MySQL
5 5 (11.63%) Data Warehouse
6 4 (9.30%) Amazon Aurora
6 4 (9.30%) Oracle Database
6 4 (9.30%) Oracle Database 12c
7 2 (4.65%) NoSQL
8 1 (2.33%) Amazon DynamoDB
8 1 (2.33%) Enterprise Data Warehouse
8 1 (2.33%) Redis
8 1 (2.33%) SQL Server Integration Services
8 1 (2.33%) SQL Server Reporting Services
Development Applications
1 15 (34.88%) Jenkins
2 6 (13.95%) Git (software)
3 4 (9.30%) Subversion
4 3 (6.98%) GitLab
5 2 (4.65%) Bitbucket
5 2 (4.65%) Gerrit
5 2 (4.65%) Gradle
5 2 (4.65%) JIRA
5 2 (4.65%) Maven
6 1 (2.33%) Cucumber
6 1 (2.33%) Gatling
6 1 (2.33%) JUnit
6 1 (2.33%) Mockito
6 1 (2.33%) Serena SBM
6 1 (2.33%) TeamCity
General
1 25 (58.14%) Banking
1 25 (58.14%) Finance
2 5 (11.63%) Retail
3 4 (9.30%) Investment Banking
4 1 (2.33%) Financial Institution
4 1 (2.33%) International Banking
4 1 (2.33%) Marketing
4 1 (2.33%) Public Sector
Job Titles
1 11 (25.58%) Developer
2 9 (20.93%) Java Developer
3 5 (11.63%) Administrator
3 5 (11.63%) Architect
3 5 (11.63%) DBA
3 5 (11.63%) DevOps Engineer
4 4 (9.30%) Java Architect
4 4 (9.30%) Java Solutions Architect
4 4 (9.30%) Oracle DBA
4 4 (9.30%) Solutions Architect
5 3 (6.98%) Applications Developer
5 3 (6.98%) AWS Developer
5 3 (6.98%) Cloud Engineer
5 3 (6.98%) Java Applications Developer
5 3 (6.98%) Network Engineer
5 3 (6.98%) Virtualisation Engineer
6 2 (4.65%) Azure Engineer
6 2 (4.65%) Consultant
6 2 (4.65%) Infrastructure Consultant
6 2 (4.65%) Linux Engineer
Libraries, Frameworks & Software Standards
1 13 (30.23%) HTML
2 12 (27.91%) HTML5
2 12 (27.91%) REST
2 12 (27.91%) Spring
3 7 (16.28%) Ajax
3 7 (16.28%) AngularJS
3 7 (16.28%) Apache Camel
3 7 (16.28%) GWT
3 7 (16.28%) Hibernate
3 7 (16.28%) JDBC
3 7 (16.28%) JMS
3 7 (16.28%) jQuery
3 7 (16.28%) JSF
3 7 (16.28%) Middleware
3 7 (16.28%) OSGi
4 6 (13.95%) Kafka
4 6 (13.95%) LDAP
5 5 (11.63%) Lambda Expressions
5 5 (11.63%) Redux
5 5 (11.63%) Spring Boot
Miscellaneous
1 19 (44.19%) Clustering
2 17 (39.53%) Enterprise Software
3 8 (18.60%) Replication
4 3 (6.98%) Analytical Skills
4 3 (6.98%) Data Centre
5 2 (4.65%) Fixed Income
5 2 (4.65%) Management Information System
5 2 (4.65%) Private Cloud
6 1 (2.33%) Blackberry
6 1 (2.33%) CMDB
6 1 (2.33%) Data Structures
6 1 (2.33%) Derivative
6 1 (2.33%) Greenfield Project
6 1 (2.33%) HP StoreVirtual
6 1 (2.33%) Market Risk
6 1 (2.33%) Mobile App
6 1 (2.33%) Virtual Team
Operating Systems
1 13 (30.23%) Linux
2 9 (20.93%) Windows
2 9 (20.93%) Windows Server
3 6 (13.95%) Windows Server 2008
4 5 (11.63%) Windows Server 2012
4 5 (11.63%) Windows Server 2016
5 4 (9.30%) Unix
5 4 (9.30%) Windows Server 2019
6 3 (6.98%) Red Hat Enterprise Linux
7 1 (2.33%) Android
7 1 (2.33%) Windows 10
Processes & Methodologies
1 21 (48.84%) Agile Software Development
2 19 (44.19%) Performance Tuning
3 17 (39.53%) Continuous Integration
4 15 (34.88%) Microservices
5 12 (27.91%) Scalability Testing
5 12 (27.91%) Web Development
6 10 (23.26%) Disaster Recovery
6 10 (23.26%) Open Source
7 9 (20.93%) Migration
7 9 (20.93%) OO
8 8 (18.60%) Capacity Planning
8 8 (18.60%) Configuration Management
8 8 (18.60%) DevOps
8 8 (18.60%) Multithreaded Programming
8 8 (18.60%) Multithreading
9 6 (13.95%) Infrastructure Engineering
9 6 (13.95%) SDLC
9 6 (13.95%) Task Automation
10 5 (11.63%) Security Hardening
10 5 (11.63%) Unit Testing
Programming Languages
1 18 (41.86%) Java
2 13 (30.23%) JavaScript
2 13 (30.23%) Python
3 7 (16.28%) SQL
4 5 (11.63%) Java 8
4 5 (11.63%) Scala
5 4 (9.30%) Go
5 4 (9.30%) PowerShell
5 4 (9.30%) Ruby
6 3 (6.98%) Bash Shell
7 2 (4.65%) C
7 2 (4.65%) C#
7 2 (4.65%) Perl
8 1 (2.33%) T-SQL
Qualifications
1 1 (2.33%) AWS Certification
1 1 (2.33%) CCNP
1 1 (2.33%) Cisco Certification
1 1 (2.33%) Computer Science Degree
1 1 (2.33%) Degree
1 1 (2.33%) DV Cleared
1 1 (2.33%) SC Cleared
1 1 (2.33%) Security Cleared
Quality Assurance & Compliance
1 3 (6.98%) MiFID
2 1 (2.33%) GDPR
2 1 (2.33%) Government Security Classifications
2 1 (2.33%) ISO/IEC 20000
2 1 (2.33%) NCSC
2 1 (2.33%) Sarbanes-Oxley
2 1 (2.33%) SLA
System Software
1 9 (20.93%) Active Directory
1 9 (20.93%) Docker
2 7 (16.28%) VMware Infrastructure
3 5 (11.63%) VMware ESXi
4 4 (9.30%) Oracle RAC
5 1 (2.33%) Hyper-V
5 1 (2.33%) Microsoft App-V
5 1 (2.33%) Veritas Cluster Server
5 1 (2.33%) Virtual Machines
5 1 (2.33%) VMware NSX
5 1 (2.33%) XenApp
5 1 (2.33%) XenDesktop
Systems Management
1 9 (20.93%) Terraform
2 7 (16.28%) Ansible
2 7 (16.28%) Opscode Chef
2 7 (16.28%) Puppet
3 6 (13.95%) Kubernetes
4 4 (9.30%) Enterprise Manager Cloud Control
4 4 (9.30%) Foglight
4 4 (9.30%) Microsoft Clustering
4 4 (9.30%) Salt
5 2 (4.65%) Grafana
5 2 (4.65%) Nagios
5 2 (4.65%) Prometheus
5 2 (4.65%) SCOM
5 2 (4.65%) Tivoli Storage Manager
6 1 (2.33%) Control-M
6 1 (2.33%) FortiGate
6 1 (2.33%) Microsoft Intune
6 1 (2.33%) Netcool
6 1 (2.33%) Norton AntiVirus
6 1 (2.33%) Tivoli
Vendors
1 19 (44.19%) Oracle
2 7 (16.28%) VMware
3 5 (11.63%) SaltStack
4 4 (9.30%) Cisco
4 4 (9.30%) Microsoft
5 3 (6.98%) Citrix
5 3 (6.98%) HP
5 3 (6.98%) Red Hat
6 2 (4.65%) Google
6 2 (4.65%) Juniper
6 2 (4.65%) ServiceNow
6 2 (4.65%) Splunk
6 2 (4.65%) Symantec
7 1 (2.33%) Altiris
7 1 (2.33%) BMC
7 1 (2.33%) CyberArk
7 1 (2.33%) Lumension
7 1 (2.33%) MobileIron
7 1 (2.33%) Palo Alto
7 1 (2.33%) Serena