High Availability Contract Job Trends in the City of London

High Availability
Central London > City of London

The table below provides summary statistics and contractor rates for jobs advertised in the City of London requiring High Availability skills. It covers contract job vacancies from the 6 months leading up to 18 October 2025, with comparisons to the same periods in the previous two years.

6 months to
18 Oct 2025
Same period 2024 Same period 2023
Rank 88 92 128
Rank change year-on-year +4 +36 +23
Contract jobs citing High Availability 35 31 21
As % of all contract jobs in the City of London 2.05% 1.47% 0.73%
As % of the Processes & Methodologies category 2.17% 1.60% 0.81%
Number of daily rates quoted 23 19 14
10th Percentile £415 £406 £426
25th Percentile £531 £476 £471
Median daily rate (50th Percentile) £650 £575 £533
Median % change year-on-year +13.04% +7.98% -18.08%
75th Percentile £749 £688 £640
90th Percentile £775 £780 £688
Central London median daily rate £650 £575 £525
% change year-on-year +13.04% +9.52% -19.23%

All Process and Methodology Skills
City of London

High Availability falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in the City of London.

Contract vacancies with a requirement for process or methodology skills 1,614 1,943 2,593
As % of all contract IT jobs advertised in the City of London 94.55% 91.87% 89.60%
Number of daily rates quoted 1,105 1,201 1,796
10th Percentile £325 £363 £370
25th Percentile £420 £463 £475
Median daily rate (50th Percentile) £550 £575 £600
Median % change year-on-year -4.35% -4.17% +4.35%
75th Percentile £675 £688 £700
90th Percentile £774 £788 £813
Central London median daily rate £550 £575 £588
% change year-on-year -4.35% -2.13% +2.17%
Number of hourly rates quoted 17 17 17
10th Percentile £16.85 £16.70 £14.25
25th Percentile £20.18 £23.13 £17.00
Median hourly rate £26.57 £42.50 £27.50
Median % change year-on-year -37.48% +54.55% -36.22%
75th Percentile £36.00 £112.00 £46.75
90th Percentile £63.75 £137.50 £59.30
Central London median hourly rate £27.04 £35.00 £26.75
% change year-on-year -22.76% +30.84% -37.43%

High Availability
Job Vacancy Trend in the City of London

Historical trend showing the proportion of contract IT job postings citing High Availability relative to all contract IT jobs advertised in the City of London.

High Availability job vacancy trend in the City of London

High Availability
Daily Rate Trend in the City of London

Contractor daily rate distribution trend for jobs in the City of London citing High Availability.

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

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 18 October 2025.

Daily rate histogram for High Availability in the City of London

High Availability
Hourly Rate Trend in the City of London

Contractor hourly rate distribution trend for jobs in the City of London citing High Availability.

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

High Availability
Co-Occurring Skills & Capabilities in the City of London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 1 (2.86%) CICS
1 1 (2.86%) Confluence
1 1 (2.86%) Microsoft Exchange
1 1 (2.86%) SharePoint
Cloud Services
1 11 (31.43%) AWS
1 11 (31.43%) Azure
2 6 (17.14%) AWS CloudFormation
2 6 (17.14%) GitHub
3 5 (14.29%) GitHub Actions
4 4 (11.43%) Virtual Private Cloud
5 3 (8.57%) Azure DevOps
6 2 (5.71%) Amazon CloudWatch
6 2 (5.71%) Amazon EC2
6 2 (5.71%) Amazon EKS
6 2 (5.71%) Amazon S3
6 2 (5.71%) Azure AKS
6 2 (5.71%) GCP
6 2 (5.71%) Microsoft 365
6 2 (5.71%) Power Automate
6 2 (5.71%) Power Platform
7 1 (2.86%) Amazon ECS
7 1 (2.86%) Azure Monitor
7 1 (2.86%) Azure Storage
7 1 (2.86%) Azure Table
Communications & Networking
1 5 (14.29%) Firewall
2 4 (11.43%) DNS
3 3 (8.57%) SSL
3 3 (8.57%) TCP/IP
3 3 (8.57%) VPN
4 2 (5.71%) HTTP
4 2 (5.71%) Multicast
5 1 (2.86%) BGP
5 1 (2.86%) Cisco Nexus
5 1 (2.86%) Ethernet VPN
5 1 (2.86%) IGMP
5 1 (2.86%) LAN
5 1 (2.86%) Network Security
5 1 (2.86%) OSPF
5 1 (2.86%) VXLAN
5 1 (2.86%) WAN
5 1 (2.86%) Wi-Fi
Database & Business Intelligence
1 3 (8.57%) PostgreSQL
1 3 (8.57%) SQL Server
2 2 (5.71%) MySQL
2 2 (5.71%) Oracle Database
2 2 (5.71%) Oracle Exadata
2 2 (5.71%) RDBMS
2 2 (5.71%) Relational Database
3 1 (2.86%) Amazon Aurora
3 1 (2.86%) Amazon RDS
3 1 (2.86%) Apache Cassandra
3 1 (2.86%) Azure SQL Database
3 1 (2.86%) CouchDB
3 1 (2.86%) MongoDB
3 1 (2.86%) NoSQL
3 1 (2.86%) Power BI
3 1 (2.86%) Redis
Development Applications
1 7 (20.00%) Jenkins
2 4 (11.43%) Git
3 2 (5.71%) Atlassian Bamboo
3 2 (5.71%) Bitbucket
3 2 (5.71%) Robot Framework
4 1 (2.86%) Artifactory
4 1 (2.86%) GitLab
4 1 (2.86%) JIRA
4 1 (2.86%) JUnit
4 1 (2.86%) SonarQube
4 1 (2.86%) Sonatype Nexus
General
1 19 (54.29%) Finance
2 15 (42.86%) Social Skills
3 11 (31.43%) Analytical Skills
4 4 (11.43%) Banking
5 2 (5.71%) Financial Institution
6 1 (2.86%) Back Office
6 1 (2.86%) Documentation Skills
6 1 (2.86%) Inclusion and Diversity
6 1 (2.86%) Law
6 1 (2.86%) Legal
6 1 (2.86%) Manufacturing
6 1 (2.86%) Public Sector
Job Titles
1 6 (17.14%) Senior
2 5 (14.29%) Lead
3 3 (8.57%) Azure Engineer
3 3 (8.57%) DevOps Engineer
3 3 (8.57%) Infrastructure Engineer
3 3 (8.57%) Network Engineer
3 3 (8.57%) Site Engineer
3 3 (8.57%) Site Reliability Engineer
4 2 (5.71%) Administrator
4 2 (5.71%) Analyst
4 2 (5.71%) Architect
4 2 (5.71%) Database Specialist
4 2 (5.71%) DBA
4 2 (5.71%) DevOps Specialist
4 2 (5.71%) Infrastructure Specialist
4 2 (5.71%) Java Engineer
4 2 (5.71%) Network Infrastructure Engineer
4 2 (5.71%) Platform Engineer
4 2 (5.71%) PostgreSQL DBA
4 2 (5.71%) Senior Java Engineer
Libraries, Frameworks & Software Standards
1 3 (8.57%) .NET
2 2 (5.71%) ARM Templates
2 2 (5.71%) JSON
2 2 (5.71%) OAuth
2 2 (5.71%) RESTful
2 2 (5.71%) Spring
2 2 (5.71%) Spring Boot
3 1 (2.86%) .NET Core
3 1 (2.86%) AngularJS
3 1 (2.86%) Apollo GraphQL
3 1 (2.86%) GraphQL
3 1 (2.86%) Kafka
3 1 (2.86%) Memcached
3 1 (2.86%) OAuth2
3 1 (2.86%) React
3 1 (2.86%) React Native
3 1 (2.86%) Redux
3 1 (2.86%) REST
3 1 (2.86%) Spring Batch
3 1 (2.86%) Zustand
Miscellaneous
1 4 (11.43%) Distributed Systems
1 4 (11.43%) Replication
2 3 (8.57%) Cloud Native
2 3 (8.57%) Clustering
2 3 (8.57%) Data Centre
3 2 (5.71%) Distributed Applications
3 2 (5.71%) Distributed Architecture
3 2 (5.71%) Mainframe
3 2 (5.71%) Private Cloud
3 2 (5.71%) Virtual Team
4 1 (2.86%) Credit Risk
4 1 (2.86%) Digital Media
4 1 (2.86%) Foreign Exchange (FX)
4 1 (2.86%) Greenfield Project
4 1 (2.86%) IPTV
4 1 (2.86%) Mobile App
4 1 (2.86%) New Media
4 1 (2.86%) Product Ownership
4 1 (2.86%) Public Cloud
4 1 (2.86%) Self-Motivation
Operating Systems
1 7 (20.00%) Linux
2 5 (14.29%) Unix
3 3 (8.57%) Red Hat Enterprise Linux
4 2 (5.71%) Windows
4 2 (5.71%) zOS
5 1 (2.86%) Android
5 1 (2.86%) Apple iOS
Processes & Methodologies
1 16 (45.71%) DevOps
2 15 (42.86%) CI/CD
3 11 (31.43%) Infrastructure as Code
4 10 (28.57%) Containerisation
5 8 (22.86%) Microservices
5 8 (22.86%) Problem-Solving
6 7 (20.00%) Agile
7 6 (17.14%) Configuration Management
8 5 (14.29%) Stakeholder Management
9 4 (11.43%) Continuous Improvement
9 4 (11.43%) Infrastructure Automation
9 4 (11.43%) Infrastructure Engineering
9 4 (11.43%) Low Latency
9 4 (11.43%) Observability
9 4 (11.43%) Proactive Monitoring
9 4 (11.43%) Project Management
9 4 (11.43%) Runbook
9 4 (11.43%) Site Reliability Engineering
9 4 (11.43%) Technical Leadership
10 3 (8.57%) Full-Stack Development
Programming Languages
1 15 (42.86%) Python
2 7 (20.00%) Bash
2 7 (20.00%) SQL
3 6 (17.14%) Java
4 4 (11.43%) C#
5 3 (8.57%) Go
5 3 (8.57%) PowerShell
6 2 (5.71%) AWK
6 2 (5.71%) Perl
6 2 (5.71%) PromQL
6 2 (5.71%) sed
6 2 (5.71%) Shell Script
6 2 (5.71%) TypeScript
7 1 (2.86%) Assembly Language
7 1 (2.86%) C
7 1 (2.86%) C++
7 1 (2.86%) Objective-C
7 1 (2.86%) PHP
7 1 (2.86%) REXX
7 1 (2.86%) Swift
Qualifications
1 2 (5.71%) AWS Certification
1 2 (5.71%) AWS Certified Developer
1 2 (5.71%) AWS Certified DevOps Engineer
1 2 (5.71%) AWS Certified Solutions Architect
1 2 (5.71%) AWS Certified SysOps Administrator
1 2 (5.71%) Azure Certification
2 1 (2.86%) CCIE
2 1 (2.86%) CCNP
2 1 (2.86%) Cisco Certification
2 1 (2.86%) Microsoft Certification
2 1 (2.86%) SC Cleared
2 1 (2.86%) Security Cleared
Quality Assurance & Compliance
1 1 (2.86%) GDPR
1 1 (2.86%) HIPAA
1 1 (2.86%) QA
System Software
1 5 (14.29%) Docker
2 2 (5.71%) GPFS
2 2 (5.71%) NFS
3 1 (2.86%) Active Directory
3 1 (2.86%) Firmware
3 1 (2.86%) RACF
3 1 (2.86%) VMware ESXi
3 1 (2.86%) VMware Infrastructure
Systems Management
1 14 (40.00%) Terraform
2 9 (25.71%) Ansible
3 7 (20.00%) Kubernetes
4 4 (11.43%) Grafana
4 4 (11.43%) Prometheus
5 3 (8.57%) Puppet
6 2 (5.71%) Istio
6 2 (5.71%) Oracle Enterprise Manager
6 2 (5.71%) Progress Chef
7 1 (2.86%) ITRS Geneos
7 1 (2.86%) Microsoft Intune
7 1 (2.86%) OMEGAMON
7 1 (2.86%) Single Sign-On
7 1 (2.86%) vCenter Server
7 1 (2.86%) vMotion
7 1 (2.86%) ZABBIX
Vendors
1 4 (11.43%) F5
1 4 (11.43%) Microsoft
2 3 (8.57%) Oracle
2 3 (8.57%) Red Hat
2 3 (8.57%) Splunk
3 2 (5.71%) Cisco
3 2 (5.71%) Palo Alto
4 1 (2.86%) Arista
4 1 (2.86%) Atlassian
4 1 (2.86%) CheckPoint
4 1 (2.86%) Databricks
4 1 (2.86%) Dynatrace
4 1 (2.86%) Fortinet
4 1 (2.86%) LogicMonitor
4 1 (2.86%) MobileIron
4 1 (2.86%) SAP
4 1 (2.86%) SolarWinds
4 1 (2.86%) Tenable
4 1 (2.86%) VMware