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 29 November 2025, with comparisons to the same periods in the previous two years.

6 months to
29 Nov 2025
Same period 2024 Same period 2023
Rank 85 82 123
Rank change year-on-year -3 +41 +32
Contract jobs citing High Availability 36 47 23
As % of all contract jobs in the City of London 2.02% 2.17% 0.85%
As % of the Processes & Methodologies category 2.18% 2.37% 0.95%
Number of daily rates quoted 25 30 16
10th Percentile £413 £416 £435
25th Percentile £450 £477 £463
Median daily rate (50th Percentile) £625 £575 £533
Median % change year-on-year +8.70% +7.98% -11.25%
75th Percentile £775 £686 £628
90th Percentile £895 £762 £695
Central London median daily rate £600 £575 £525
% change year-on-year +4.35% +9.52% -12.50%

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 1,654 1,982 2,419
As % of all contract IT jobs advertised in the City of London 92.87% 91.51% 89.56%
Number of daily rates quoted 1,159 1,217 1,711
10th Percentile £339 £375 £363
25th Percentile £421 £475 £463
Median daily rate (50th Percentile) £550 £575 £575
Median % change year-on-year -4.35% - -
75th Percentile £675 £688 £694
90th Percentile £756 £788 £813
Central London median daily rate £550 £575 £575
% change year-on-year -4.35% - -
Number of hourly rates quoted 17 17 13
10th Percentile £20.02 £16.70 -
25th Percentile £25.75 £22.00 £17.00
Median hourly rate £34.00 £42.50 £27.50
Median % change year-on-year -20.00% +54.55% -47.12%
75th Percentile £47.50 £112.00 £53.00
90th Percentile £63.75 £137.50 £72.75
Central London median hourly rate £28.00 £35.00 £26.75
% change year-on-year -20.00% +30.84% -47.55%

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 29 November 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 (2.78%) CICS
1 1 (2.78%) Confluence
1 1 (2.78%) Microsoft Exchange
1 1 (2.78%) SharePoint
Cloud Services
1 13 (36.11%) Azure
2 10 (27.78%) AWS
3 7 (19.44%) GitHub
4 6 (16.67%) GitHub Actions
5 4 (11.11%) AWS CloudFormation
6 2 (5.56%) Amazon CloudWatch
6 2 (5.56%) Amazon EC2
6 2 (5.56%) Amazon EKS
6 2 (5.56%) Amazon S3
6 2 (5.56%) Azure DevOps
6 2 (5.56%) GCP
6 2 (5.56%) Virtual Private Cloud
7 1 (2.78%) Amazon ECS
7 1 (2.78%) Azure Data Factory
7 1 (2.78%) Azure Synapse Analytics
7 1 (2.78%) Datadog
7 1 (2.78%) Power Automate
7 1 (2.78%) Power Platform
7 1 (2.78%) PowerApps
7 1 (2.78%) Sumo Logic
Communications & Networking
1 3 (8.33%) Firewall
1 3 (8.33%) SSL
1 3 (8.33%) TCP/IP
2 2 (5.56%) DNS
2 2 (5.56%) HTTP
2 2 (5.56%) Multicast
3 1 (2.78%) BGP
3 1 (2.78%) Cisco Nexus
3 1 (2.78%) Ethernet VPN
3 1 (2.78%) IGMP
3 1 (2.78%) NAS
3 1 (2.78%) Network Security
3 1 (2.78%) OSPF
3 1 (2.78%) SAN
3 1 (2.78%) Software-Defined Networking
3 1 (2.78%) VPN
3 1 (2.78%) VXLAN
Database & Business Intelligence
1 3 (8.33%) PostgreSQL
1 3 (8.33%) SQL Server
2 2 (5.56%) MySQL
2 2 (5.56%) Oracle Database
2 2 (5.56%) Oracle Exadata
2 2 (5.56%) RDBMS
2 2 (5.56%) Relational Database
3 1 (2.78%) Amazon Aurora
3 1 (2.78%) Amazon RDS
3 1 (2.78%) Apache Cassandra
3 1 (2.78%) Azure SQL Database
3 1 (2.78%) CouchDB
3 1 (2.78%) Data Warehouse
3 1 (2.78%) Metadata
3 1 (2.78%) MongoDB
3 1 (2.78%) NoSQL
3 1 (2.78%) Redis
Development Applications
1 7 (19.44%) Git
1 7 (19.44%) Jenkins
2 2 (5.56%) Bitbucket
2 2 (5.56%) Robot Framework
3 1 (2.78%) Artifactory
3 1 (2.78%) GitLab
3 1 (2.78%) Jaeger
3 1 (2.78%) JIRA
3 1 (2.78%) JUnit
3 1 (2.78%) SonarQube
3 1 (2.78%) Sonatype Nexus
General
1 19 (52.78%) Finance
2 18 (50.00%) Social Skills
3 11 (30.56%) Analytical Skills
4 7 (19.44%) Banking
5 4 (11.11%) Financial Institution
6 2 (5.56%) Inclusion and Diversity
7 1 (2.78%) Back Office
7 1 (2.78%) Documentation Skills
7 1 (2.78%) Games
7 1 (2.78%) Investment Banking
7 1 (2.78%) Law
7 1 (2.78%) Legal
7 1 (2.78%) Public Sector
Job Titles
1 6 (16.67%) Senior
2 4 (11.11%) Lead
2 4 (11.11%) Network Engineer
3 3 (8.33%) Infrastructure Engineer
3 3 (8.33%) Site Reliability Engineer
4 2 (5.56%) Administrator
4 2 (5.56%) Analyst
4 2 (5.56%) Data Engineer
4 2 (5.56%) Database Specialist
4 2 (5.56%) DBA
4 2 (5.56%) DevOps Engineer
4 2 (5.56%) Java Engineer
4 2 (5.56%) Network Infrastructure Engineer
4 2 (5.56%) PostgreSQL DBA
4 2 (5.56%) PostgreSQL Specialist
4 2 (5.56%) Python Engineer
4 2 (5.56%) Senior Java Engineer
4 2 (5.56%) Site Engineer
4 2 (5.56%) Technical Analyst
5 1 (2.78%) Systems Support
Libraries, Frameworks & Software Standards
1 4 (11.11%) OAuth
2 2 (5.56%) .NET
2 2 (5.56%) JSON
2 2 (5.56%) Spring
2 2 (5.56%) Spring Boot
3 1 (2.78%) Apollo GraphQL
3 1 (2.78%) ARM Templates
3 1 (2.78%) GraphQL
3 1 (2.78%) Hibernate
3 1 (2.78%) JPA
3 1 (2.78%) JWT
3 1 (2.78%) Loki
3 1 (2.78%) Memcached
3 1 (2.78%) OpenTelemetry
3 1 (2.78%) React Native
3 1 (2.78%) Redux
3 1 (2.78%) REST
3 1 (2.78%) RESTful
3 1 (2.78%) Web Services
3 1 (2.78%) Zustand
Miscellaneous
1 4 (11.11%) Replication
2 3 (8.33%) Data Centre
2 3 (8.33%) Foreign Exchange (FX)
3 2 (5.56%) Clustering
3 2 (5.56%) Derivative
3 2 (5.56%) Distributed Systems
3 2 (5.56%) Fixed Income
3 2 (5.56%) Mainframe
3 2 (5.56%) Private Cloud
4 1 (2.78%) Cloud Native
4 1 (2.78%) Credit Risk
4 1 (2.78%) Digital Media
4 1 (2.78%) Greenfield Project
4 1 (2.78%) IPTV
4 1 (2.78%) Media Streaming
4 1 (2.78%) Mobile App
4 1 (2.78%) New Media
4 1 (2.78%) Online Games
4 1 (2.78%) Product Ownership
4 1 (2.78%) Public Cloud
Operating Systems
1 7 (19.44%) Linux
2 5 (13.89%) Unix
3 3 (8.33%) Red Hat Enterprise Linux
4 2 (5.56%) Windows
4 2 (5.56%) zOS
5 1 (2.78%) Android
5 1 (2.78%) Apple iOS
5 1 (2.78%) VMS
Processes & Methodologies
1 15 (41.67%) CI/CD
2 14 (38.89%) DevOps
3 10 (27.78%) Infrastructure as Code
3 10 (27.78%) Problem-Solving
4 8 (22.22%) Containerisation
5 7 (19.44%) Low Latency
6 6 (16.67%) Agile
6 6 (16.67%) Microservices
7 5 (13.89%) Data Governance
7 5 (13.89%) Infrastructure Engineering
7 5 (13.89%) Platform Engineering
7 5 (13.89%) Stakeholder Management
8 4 (11.11%) Configuration Management
8 4 (11.11%) Observability
8 4 (11.11%) Performance Tuning
8 4 (11.11%) Proactive Monitoring
8 4 (11.11%) SDLC
8 4 (11.11%) Site Reliability Engineering
8 4 (11.11%) Software Engineering
8 4 (11.11%) Technical Leadership
Programming Languages
1 16 (44.44%) Python
2 9 (25.00%) SQL
3 6 (16.67%) Bash
4 5 (13.89%) Java
5 4 (11.11%) Perl
6 3 (8.33%) C#
6 3 (8.33%) Go
7 2 (5.56%) AWK
7 2 (5.56%) PowerShell
7 2 (5.56%) PromQL
7 2 (5.56%) sed
7 2 (5.56%) TypeScript
8 1 (2.78%) Assembly Language
8 1 (2.78%) C
8 1 (2.78%) C++
8 1 (2.78%) Kotlin
8 1 (2.78%) Objective-C
8 1 (2.78%) PHP
8 1 (2.78%) REXX
8 1 (2.78%) Swift
Qualifications
1 2 (5.56%) SC Cleared
1 2 (5.56%) Security Cleared
2 1 (2.78%) Azure Certification
2 1 (2.78%) CCIE
2 1 (2.78%) CCNP
2 1 (2.78%) Cisco Certification
2 1 (2.78%) VCAP
2 1 (2.78%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 1 (2.78%) Data Quality
1 1 (2.78%) GDPR
1 1 (2.78%) HIPAA
1 1 (2.78%) QA
System Software
1 4 (11.11%) Docker
2 2 (5.56%) GPFS
2 2 (5.56%) NFS
3 1 (2.78%) Active Directory
3 1 (2.78%) RACF
3 1 (2.78%) Virtual Machines
3 1 (2.78%) VMware ESXi
3 1 (2.78%) VMware Infrastructure
3 1 (2.78%) VMware NSX
3 1 (2.78%) vSphere
Systems Management
1 13 (36.11%) Terraform
2 12 (33.33%) Ansible
3 5 (13.89%) Kubernetes
4 4 (11.11%) Grafana
4 4 (11.11%) Prometheus
5 3 (8.33%) ITRS Geneos
6 2 (5.56%) Oracle Enterprise Manager
7 1 (2.78%) Istio
7 1 (2.78%) Microsoft Intune
7 1 (2.78%) OMEGAMON
7 1 (2.78%) PowerCLI
7 1 (2.78%) Puppet
7 1 (2.78%) Single Sign-On
7 1 (2.78%) vCenter Server
7 1 (2.78%) ZABBIX
Vendors
1 6 (16.67%) Splunk
2 4 (11.11%) Databricks
2 4 (11.11%) F5
3 3 (8.33%) Oracle
3 3 (8.33%) Red Hat
4 2 (5.56%) AppDynamics
4 2 (5.56%) Bloomberg
4 2 (5.56%) MarketAxess
4 2 (5.56%) Microsoft
4 2 (5.56%) Palo Alto
4 2 (5.56%) Tradeweb
5 1 (2.78%) Arista
5 1 (2.78%) Atlassian
5 1 (2.78%) Dynatrace
5 1 (2.78%) Fortinet
5 1 (2.78%) LogicMonitor
5 1 (2.78%) MobileIron
5 1 (2.78%) SolarWinds
5 1 (2.78%) Tenable
5 1 (2.78%) VMware