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 21 December 2025, with comparisons to the same periods in the previous two years.

6 months to
21 Dec 2025
Same period 2024 Same period 2023
Rank 94 75 114
Rank change year-on-year -19 +39 +33
Contract jobs citing High Availability 30 48 23
As % of all contract jobs in the City of London 1.65% 2.32% 0.91%
As % of the Processes & Methodologies category 1.82% 2.52% 1.02%
Number of daily rates quoted 20 29 17
10th Percentile £413 £406 £461
25th Percentile £420 £463 £495
Median daily rate (50th Percentile) £575 £575 £570
Median % change year-on-year - +0.88% -5.00%
75th Percentile £775 £680 £638
90th Percentile £829 £712 £707
Central London median daily rate £530 £575 £570
% change year-on-year -7.83% +0.88% -5.00%

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 1,651 1,902 2,263
As % of all contract IT jobs advertised in the City of London 90.57% 92.06% 89.31%
Number of daily rates quoted 1,165 1,162 1,616
10th Percentile £340 £363 £363
25th Percentile £421 £465 £463
Median daily rate (50th Percentile) £543 £575 £575
Median % change year-on-year -5.65% - -1.71%
75th Percentile £675 £688 £688
90th Percentile £756 £790 £800
Central London median daily rate £550 £575 £575
% change year-on-year -4.35% - -
Number of hourly rates quoted 17 15 11
10th Percentile £20.02 £15.80 £17.00
25th Percentile £20.82 £22.00 £17.97
Median hourly rate £28.00 £42.50 £25.00
Median % change year-on-year -34.12% +70.00% -41.86%
75th Percentile £41.94 £102.25 £42.38
90th Percentile £54.95 £127.30 £73.75
Central London median hourly rate £26.31 £35.00 £25.50
% change year-on-year -24.84% +37.25% -37.04%

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 21 December 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 (3.33%) CICS
1 1 (3.33%) Confluence
Business Applications
1 1 (3.33%) BASE24
1 1 (3.33%) Payment Gateway
Cloud Services
1 9 (30.00%) AWS
1 9 (30.00%) Azure
2 7 (23.33%) GitHub
3 6 (20.00%) GitHub Actions
4 4 (13.33%) AWS CloudFormation
5 2 (6.67%) Amazon CloudWatch
5 2 (6.67%) Amazon EC2
5 2 (6.67%) Amazon EKS
5 2 (6.67%) Amazon S3
5 2 (6.67%) GCP
5 2 (6.67%) Virtual Private Cloud
6 1 (3.33%) Amazon ECS
6 1 (3.33%) Amazon ELB
6 1 (3.33%) AWS CloudTrail
6 1 (3.33%) Azure AKS
6 1 (3.33%) Azure Data Factory
6 1 (3.33%) Azure DevOps
6 1 (3.33%) Azure Synapse Analytics
6 1 (3.33%) Firebase
6 1 (3.33%) Sumo Logic
Communications & Networking
1 3 (10.00%) SSL
1 3 (10.00%) TCP/IP
2 2 (6.67%) DNS
2 2 (6.67%) Firewall
2 2 (6.67%) HTTP
2 2 (6.67%) Multicast
3 1 (3.33%) BGP
3 1 (3.33%) Cisco Nexus
3 1 (3.33%) Ethernet VPN
3 1 (3.33%) IGMP
3 1 (3.33%) NAS
3 1 (3.33%) Network Security
3 1 (3.33%) OSPF
3 1 (3.33%) SAN
3 1 (3.33%) Software-Defined Networking
3 1 (3.33%) VPN
3 1 (3.33%) VXLAN
Database & Business Intelligence
1 2 (6.67%) MySQL
1 2 (6.67%) PostgreSQL
1 2 (6.67%) RDBMS
1 2 (6.67%) Relational Database
1 2 (6.67%) SQL Server
2 1 (3.33%) Amazon Aurora
2 1 (3.33%) Amazon RDS
2 1 (3.33%) Apache Cassandra
2 1 (3.33%) Azure SQL Database
2 1 (3.33%) CouchDB
2 1 (3.33%) Data Warehouse
2 1 (3.33%) Metadata
2 1 (3.33%) MongoDB
2 1 (3.33%) NonStop SQL
2 1 (3.33%) NoSQL
2 1 (3.33%) OLTP
2 1 (3.33%) Oracle Database
2 1 (3.33%) Oracle Exadata
2 1 (3.33%) Redis
Development Applications
1 7 (23.33%) Git
1 7 (23.33%) Jenkins
2 2 (6.67%) Bitbucket
2 2 (6.67%) Robot Framework
3 1 (3.33%) Artifactory
3 1 (3.33%) GitLab
3 1 (3.33%) Jaeger
3 1 (3.33%) JIRA
3 1 (3.33%) JUnit
3 1 (3.33%) SonarQube
3 1 (3.33%) Sonatype Nexus
General
1 15 (50.00%) Finance
2 13 (43.33%) Social Skills
3 9 (30.00%) Analytical Skills
4 7 (23.33%) Banking
5 4 (13.33%) Financial Institution
6 2 (6.67%) Inclusion and Diversity
7 1 (3.33%) Back Office
7 1 (3.33%) Documentation Skills
7 1 (3.33%) Games
7 1 (3.33%) Investment Banking
7 1 (3.33%) Law
7 1 (3.33%) Legal
7 1 (3.33%) Public Sector
Job Titles
1 5 (16.67%) Senior
2 4 (13.33%) Network Engineer
3 3 (10.00%) Infrastructure Engineer
3 3 (10.00%) Site Reliability Engineer
4 2 (6.67%) Data Engineer
4 2 (6.67%) Developer
4 2 (6.67%) DevOps Engineer
4 2 (6.67%) Java Engineer
4 2 (6.67%) Network Infrastructure Engineer
4 2 (6.67%) Python Engineer
4 2 (6.67%) Senior Java Engineer
4 2 (6.67%) Site Engineer
5 1 (3.33%) AWS Engineer
5 1 (3.33%) Mainframe Systems Programmer
5 1 (3.33%) Monitoring Engineer
5 1 (3.33%) PostgreSQL DBA
5 1 (3.33%) PostgreSQL Specialist
5 1 (3.33%) Senior DevOps Engineer
5 1 (3.33%) VMware Engineer
5 1 (3.33%) z/OS Engineer
Libraries, Frameworks & Software Standards
1 4 (13.33%) OAuth
2 2 (6.67%) Spring
2 2 (6.67%) Spring Boot
3 1 (3.33%) AngularJS
3 1 (3.33%) Apollo GraphQL
3 1 (3.33%) GraphQL
3 1 (3.33%) Hibernate
3 1 (3.33%) JPA
3 1 (3.33%) JSON
3 1 (3.33%) Kafka
3 1 (3.33%) Loki
3 1 (3.33%) Memcached
3 1 (3.33%) OAuth2
3 1 (3.33%) React
3 1 (3.33%) React Native
3 1 (3.33%) Redux
3 1 (3.33%) REST
3 1 (3.33%) RESTful
3 1 (3.33%) Spring Batch
3 1 (3.33%) Web Services
Miscellaneous
1 3 (10.00%) Foreign Exchange (FX)
1 3 (10.00%) Replication
2 2 (6.67%) Data Centre
2 2 (6.67%) Derivative
2 2 (6.67%) Fixed Income
2 2 (6.67%) Mainframe
2 2 (6.67%) Private Cloud
3 1 (3.33%) Cloud Native
3 1 (3.33%) Clustering
3 1 (3.33%) Credit Risk
3 1 (3.33%) Digital Media
3 1 (3.33%) EMV
3 1 (3.33%) Greenfield Project
3 1 (3.33%) IPTV
3 1 (3.33%) Media Streaming
3 1 (3.33%) Mobile App
3 1 (3.33%) New Media
3 1 (3.33%) Online Games
3 1 (3.33%) Public Cloud
3 1 (3.33%) Tandem
Operating Systems
1 6 (20.00%) Linux
2 5 (16.67%) Unix
3 2 (6.67%) Red Hat Enterprise Linux
3 2 (6.67%) Windows
3 2 (6.67%) zOS
4 1 (3.33%) Android
4 1 (3.33%) Apple iOS
4 1 (3.33%) VMS
Processes & Methodologies
1 14 (46.67%) CI/CD
2 13 (43.33%) DevOps
3 10 (33.33%) Problem-Solving
4 9 (30.00%) Infrastructure as Code
5 8 (26.67%) Containerisation
6 7 (23.33%) Low Latency
7 5 (16.67%) Data Governance
7 5 (16.67%) Infrastructure Engineering
7 5 (16.67%) Platform Engineering
8 4 (13.33%) Agile
8 4 (13.33%) Configuration Management
8 4 (13.33%) Microservices
8 4 (13.33%) Observability
8 4 (13.33%) Performance Tuning
8 4 (13.33%) SDLC
8 4 (13.33%) Site Reliability Engineering
9 3 (10.00%) AI
9 3 (10.00%) Change Management
9 3 (10.00%) Electronic Trading
9 3 (10.00%) Problem Management
Programming Languages
1 15 (50.00%) Python
2 9 (30.00%) SQL
3 5 (16.67%) Bash
4 4 (13.33%) Java
4 4 (13.33%) Perl
5 3 (10.00%) Go
6 2 (6.67%) C
6 2 (6.67%) PromQL
7 1 (3.33%) Assembly Language
7 1 (3.33%) AWK
7 1 (3.33%) C#
7 1 (3.33%) C++
7 1 (3.33%) COBOL
7 1 (3.33%) Kotlin
7 1 (3.33%) Objective-C
7 1 (3.33%) PHP
7 1 (3.33%) PowerShell
7 1 (3.33%) REXX
7 1 (3.33%) Swift
7 1 (3.33%) TypeScript
Qualifications
1 2 (6.67%) SC Cleared
1 2 (6.67%) Security Cleared
2 1 (3.33%) CCIE
2 1 (3.33%) CCNP
2 1 (3.33%) Cisco Certification
2 1 (3.33%) VCAP
2 1 (3.33%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 1 (3.33%) Data Quality
1 1 (3.33%) GDPR
1 1 (3.33%) HIPAA
1 1 (3.33%) ISO 8583
1 1 (3.33%) QA
System Software
1 4 (13.33%) Docker
2 1 (3.33%) GPFS
2 1 (3.33%) NFS
2 1 (3.33%) RACF
2 1 (3.33%) Virtual Machines
2 1 (3.33%) VMware ESXi
2 1 (3.33%) VMware Infrastructure
2 1 (3.33%) VMware NSX
2 1 (3.33%) vSphere
Systems Management
1 12 (40.00%) Ansible
1 12 (40.00%) Terraform
2 5 (16.67%) Kubernetes
3 4 (13.33%) Grafana
3 4 (13.33%) Prometheus
4 3 (10.00%) ITRS Geneos
5 1 (3.33%) Istio
5 1 (3.33%) OMEGAMON
5 1 (3.33%) Oracle Enterprise Manager
5 1 (3.33%) PowerCLI
5 1 (3.33%) Puppet
5 1 (3.33%) vCenter Server
5 1 (3.33%) ZABBIX
Vendors
1 6 (20.00%) Splunk
2 4 (13.33%) Databricks
2 4 (13.33%) F5
3 2 (6.67%) AppDynamics
3 2 (6.67%) Bloomberg
3 2 (6.67%) MarketAxess
3 2 (6.67%) Microsoft
3 2 (6.67%) Oracle
3 2 (6.67%) Palo Alto
3 2 (6.67%) Red Hat
3 2 (6.67%) Tradeweb
4 1 (3.33%) Atlassian
4 1 (3.33%) CheckPoint
4 1 (3.33%) Cisco
4 1 (3.33%) Dynatrace
4 1 (3.33%) Fortinet
4 1 (3.33%) HP
4 1 (3.33%) SAP
4 1 (3.33%) SolarWinds
4 1 (3.33%) VMware