High Availability Contract Job Trends in London

High Availability
England > London

The table below provides summary statistics and contractor rates for jobs advertised in London requiring High Availability skills. It covers contract job vacancies from the 6 months leading up to 30 October 2025, with comparisons to the same periods in the previous two years.

6 months to
30 Oct 2025
Same period 2024 Same period 2023
Rank 173 190 195
Rank change year-on-year +17 +5 +47
Contract jobs citing High Availability 218 209 249
As % of all contract jobs in London 1.60% 1.33% 1.22%
As % of the Processes & Methodologies category 1.73% 1.49% 1.36%
Number of daily rates quoted 156 131 188
10th Percentile £375 £286 £363
25th Percentile £450 £450 £491
Median daily rate (50th Percentile) £550 £550 £600
Median % change year-on-year - -8.33% -
75th Percentile £691 £643 £700
90th Percentile £800 £750 -
England median daily rate £500 £525 £550
% change year-on-year -4.76% -4.55% -4.35%
Number of hourly rates quoted 3 7 4
10th Percentile £23.60 £22.26 £62.22
25th Percentile £24.50 - £73.05
Median hourly rate £26.00 £23.80 £86.41
Median % change year-on-year +9.24% -72.46% +245.62%
75th Percentile - - £90.94
90th Percentile - £54.28 £92.63
England median hourly rate £69.63 £27.50 £82.81
% change year-on-year +153.19% -66.79% +231.24%

All Process and Methodology Skills
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 London.

Contract vacancies with a requirement for process or methodology skills 12,625 14,032 18,285
As % of all contract IT jobs advertised in London 92.41% 89.25% 89.76%
Number of daily rates quoted 8,294 9,046 13,184
10th Percentile £326 £350 £363
25th Percentile £425 £450 £463
Median daily rate (50th Percentile) £538 £550 £575
Median % change year-on-year -2.19% -4.35% -2.13%
75th Percentile £663 £675 £688
90th Percentile £775 £798 £800
England median daily rate £508 £525 £550
% change year-on-year -3.33% -4.55% -
Number of hourly rates quoted 251 171 232
10th Percentile £17.98 £17.50 £18.35
25th Percentile £25.09 £24.34 £21.44
Median hourly rate £31.49 £38.07 £39.92
Median % change year-on-year -17.28% -4.62% +4.03%
75th Percentile £47.25 £58.13 £63.75
90th Percentile £64.75 £80.00 £77.50
England median hourly rate £25.15 £40.00 £44.50
% change year-on-year -37.13% -10.11% +27.14%

High Availability
Job Vacancy Trend in London

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

High Availability job vacancy trend in London

High Availability
Daily Rate Trend in London

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

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

High Availability
Daily Rate Histogram in London

Daily rate distribution for jobs citing High Availability in London over the 6 months to 30 October 2025.

Daily rate histogram for High Availability in London

High Availability
Hourly Rate Trend in London

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

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

High Availability
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing High Availability within the London region over the 6 months to 30 October 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
Central London +5 37 £625 +8.70% 72
South London - 8 £738 -
West London -9 6 - - 1
East London +1 3 £263 +5.00%
High Availability
England

High Availability
Co-Occurring Skills & Capabilities in 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 5 (2.29%) Apache Spark
2 3 (1.38%) Apache
2 3 (1.38%) CICS
2 3 (1.38%) Confluence
2 3 (1.38%) Ethereum
2 3 (1.38%) Hyperledger
2 3 (1.38%) Microsoft Exchange
3 2 (0.92%) CMS
3 2 (0.92%) Headless CMS
3 2 (0.92%) nginx
3 2 (0.92%) Oracle HTTP Server
3 2 (0.92%) SAS
3 2 (0.92%) Tomcat
3 2 (0.92%) WebLogic
4 1 (0.46%) Apache Airflow
4 1 (0.46%) Drupal
4 1 (0.46%) SharePoint
4 1 (0.46%) WordPress
Applications
1 2 (0.92%) Microsoft Excel
2 1 (0.46%) Chatbot
2 1 (0.46%) Microsoft Office
2 1 (0.46%) Microsoft PowerPoint
Business Applications
1 10 (4.59%) SAP S/4HANA
2 1 (0.46%) Eikon
2 1 (0.46%) Eze OMS
2 1 (0.46%) Fidessa
2 1 (0.46%) SAP MDG
Cloud Services
1 56 (25.69%) AWS
2 55 (25.23%) Azure
3 25 (11.47%) GitHub
4 21 (9.63%) Amazon S3
5 20 (9.17%) Amazon CloudWatch
5 20 (9.17%) Virtual Private Cloud
6 17 (7.80%) Serverless
7 16 (7.34%) GCP
8 15 (6.88%) Amazon EC2
8 15 (6.88%) AWS Lambda
9 14 (6.42%) AWS CloudFormation
10 12 (5.50%) GitHub Actions
11 11 (5.05%) Azure DevOps
12 9 (4.13%) Akamai
12 9 (4.13%) Amazon ELB
12 9 (4.13%) PaaS
13 7 (3.21%) Amazon EKS
13 7 (3.21%) Entra ID
14 6 (2.75%) Azure AKS
14 6 (2.75%) Azure Monitor
Communications & Networking
1 43 (19.72%) Firewall
2 32 (14.68%) DNS
3 29 (13.30%) TCP/IP
4 25 (11.47%) VPN
5 17 (7.80%) Network Security
6 16 (7.34%) Multicast
7 15 (6.88%) SSL
7 15 (6.88%) Wireshark
8 14 (6.42%) WAN
9 13 (5.96%) DHCP
10 11 (5.05%) BGP
11 10 (4.59%) 4G
11 10 (4.59%) OSPF
12 9 (4.13%) HTTP
12 9 (4.13%) LAN
13 8 (3.67%) Cisco Nexus
14 7 (3.21%) Cisco ISE
14 7 (3.21%) F5 BIG-IP LTM
14 7 (3.21%) LTE
14 7 (3.21%) Radio Access Network
Database & Business Intelligence
1 16 (7.34%) PostgreSQL
2 14 (6.42%) NoSQL
2 14 (6.42%) Relational Database
3 7 (3.21%) SQL Server
4 6 (2.75%) Amazon RDS
4 6 (2.75%) Elasticsearch
4 6 (2.75%) MongoDB
4 6 (2.75%) MySQL
5 5 (2.29%) Oracle Database
6 4 (1.83%) DB2
6 4 (1.83%) DynamoDB
6 4 (1.83%) RDBMS
7 3 (1.38%) Azure SQL Database
7 3 (1.38%) Oracle Database 11g
8 2 (0.92%) Apache Cassandra
8 2 (0.92%) Hadoop
8 2 (0.92%) Oracle Exadata
8 2 (0.92%) Redis
8 2 (0.92%) SAP Data Services
8 2 (0.92%) SAP HANA
Development Applications
1 32 (14.68%) Jenkins
2 22 (10.09%) Git
3 16 (7.34%) GitLab
4 10 (4.59%) GCC
5 9 (4.13%) GDB
5 9 (4.13%) JIRA
6 4 (1.83%) Artifactory
6 4 (1.83%) Cypress.io
6 4 (1.83%) Robot Framework
6 4 (1.83%) Subversion
6 4 (1.83%) TeamCity
7 3 (1.38%) Gradle
7 3 (1.38%) Sonatype Nexus
8 2 (0.92%) Bitbucket
8 2 (0.92%) Cucumber
8 2 (0.92%) git-flow
8 2 (0.92%) JUnit
8 2 (0.92%) SonarQube
9 1 (0.46%) MLflow
9 1 (0.46%) tSQLt
General
1 77 (35.32%) Social Skills
2 57 (26.15%) Finance
3 29 (13.30%) Analytical Skills
4 27 (12.39%) Banking
5 14 (6.42%) Front Office
6 11 (5.05%) Telecoms
7 9 (4.13%) Public Sector
8 8 (3.67%) International Banking
9 7 (3.21%) Inclusion and Diversity
10 6 (2.75%) Financial Institution
10 6 (2.75%) Influencing Skills
10 6 (2.75%) Retail
11 4 (1.83%) Investment Banking
12 3 (1.38%) Digital Healthcare
12 3 (1.38%) Documentation Skills
12 3 (1.38%) French Language
12 3 (1.38%) Legal
12 3 (1.38%) Organisational Skills
12 3 (1.38%) Presentation Skills
13 2 (0.92%) Publishing
Job Titles
1 30 (13.76%) Senior
2 28 (12.84%) Developer
3 20 (9.17%) DevOps Engineer
4 18 (8.26%) Architect
5 17 (7.80%) Network Engineer
6 16 (7.34%) Lead
7 14 (6.42%) Infrastructure Engineer
8 10 (4.59%) Consultant
9 9 (4.13%) Senior DevOps
9 9 (4.13%) Senior DevOps Engineer
10 8 (3.67%) Administrator
10 8 (3.67%) C++ Developer
10 8 (3.67%) DBA
10 8 (3.67%) Network Specialist
11 7 (3.21%) AWS Engineer
11 7 (3.21%) Cloud Engineer
11 7 (3.21%) Network Design Specialist
11 7 (3.21%) Performance Specialist
11 7 (3.21%) Project Manager
12 6 (2.75%) Site Reliability Engineer
Libraries, Frameworks & Software Standards
1 18 (8.26%) FIX Protocol
1 18 (8.26%) Middleware
2 14 (6.42%) REST
3 12 (5.50%) Kafka
3 12 (5.50%) OAuth
4 10 (4.59%) .NET
5 9 (4.13%) Boost C++ Libraries
5 9 (4.13%) JSON
5 9 (4.13%) RESTful
5 9 (4.13%) STL
6 8 (3.67%) Elastic Stack
6 8 (3.67%) OAuth2
6 8 (3.67%) Spring
6 8 (3.67%) XML
7 7 (3.21%) ARM Templates
8 5 (2.29%) FpML
8 5 (2.29%) Node.js
8 5 (2.29%) OpenID
8 5 (2.29%) Spring Boot
8 5 (2.29%) Ultra Messaging
Miscellaneous
1 41 (18.81%) Cloud Native
2 21 (9.63%) Replication
3 19 (8.72%) Data Centre
4 18 (8.26%) Foreign Exchange (FX)
5 14 (6.42%) Clustering
6 12 (5.50%) Distributed Architecture
6 12 (5.50%) Hybrid Cloud
7 11 (5.05%) Distributed Systems
8 10 (4.59%) Onboarding
9 9 (4.13%) Algorithms
10 8 (3.67%) Mainframe
11 7 (3.21%) Fixed Income
11 7 (3.21%) Product Ownership
12 6 (2.75%) Data Structures
12 6 (2.75%) Self-Motivation
13 5 (2.29%) Derivative
13 5 (2.29%) Public Cloud
14 4 (1.83%) Data Protection Act
14 4 (1.83%) Private Cloud
15 3 (1.38%) Security Operations Centre
Operating Systems
1 50 (22.94%) Linux
2 24 (11.01%) Windows
3 16 (7.34%) Red Hat Enterprise Linux
4 9 (4.13%) Unix
4 9 (4.13%) Windows Server
5 5 (2.29%) CentOS
5 5 (2.29%) Solaris
5 5 (2.29%) Ubuntu
5 5 (2.29%) zOS
6 3 (1.38%) Android
6 3 (1.38%) VMS
7 2 (0.92%) Apple iOS
7 2 (0.92%) Windows Server 2016
8 1 (0.46%) AIX
8 1 (0.46%) Windows 10
8 1 (0.46%) Windows Server 2019
Processes & Methodologies
1 79 (36.24%) CI/CD
2 78 (35.78%) DevOps
3 56 (25.69%) Infrastructure as Code
4 50 (22.94%) Problem-Solving
5 37 (16.97%) Agile
6 34 (15.60%) Containerisation
7 30 (13.76%) Low Latency
8 26 (11.93%) Observability
8 26 (11.93%) Root Cause Analysis
9 25 (11.47%) Continuous Improvement
9 25 (11.47%) Disaster Recovery
9 25 (11.47%) Mentoring
9 25 (11.47%) Stakeholder Management
10 24 (11.01%) Infrastructure Automation
10 24 (11.01%) Microservices
11 20 (9.17%) Infrastructure Engineering
11 20 (9.17%) Performance Tuning
11 20 (9.17%) Test Automation
12 19 (8.72%) Incident Response
13 18 (8.26%) Data Protection
Programming Languages
1 84 (38.53%) Python
2 39 (17.89%) SQL
3 35 (16.06%) Bash
4 26 (11.93%) PowerShell
5 24 (11.01%) Java
6 14 (6.42%) C#
6 14 (6.42%) C++
7 11 (5.05%) Perl
8 7 (3.21%) JavaScript
9 5 (2.29%) Go
9 5 (2.29%) Shell Script
10 4 (1.83%) Bicep
10 4 (1.83%) REXX
10 4 (1.83%) T-SQL
11 3 (1.38%) Assembly Language
11 3 (1.38%) PromQL
11 3 (1.38%) TypeScript
12 2 (0.92%) PL/1
12 2 (0.92%) Scala
12 2 (0.92%) sed
Qualifications
1 23 (10.55%) Security Cleared
2 18 (8.26%) SC Cleared
3 16 (7.34%) Degree
4 13 (5.96%) Computer Science Degree
5 9 (4.13%) AWS Certification
6 7 (3.21%) AWS Certified Solutions Architect
6 7 (3.21%) Cisco Certification
7 6 (2.75%) CCNP
8 5 (2.29%) Azure Certification
8 5 (2.29%) ITIL Certification
9 3 (1.38%) BPSS Clearance
9 3 (1.38%) CCIE
9 3 (1.38%) CCNA
10 2 (0.92%) AWS Certified DevOps Engineer
10 2 (0.92%) CCDP
10 2 (0.92%) Microsoft Certification
10 2 (0.92%) RHCE
11 1 (0.46%) AWS Certified Developer
11 1 (0.46%) AWS Certified SysOps Administrator
11 1 (0.46%) Master's Degree
Quality Assurance & Compliance
1 7 (3.21%) GDPR
2 4 (1.83%) Sarbanes-Oxley
3 3 (1.38%) PCI DSS
3 3 (1.38%) SLA
4 2 (0.92%) HIPAA
4 2 (0.92%) QA
5 1 (0.46%) Accessibility
5 1 (0.46%) Data Quality
5 1 (0.46%) HL7
5 1 (0.46%) NIST
System Software
1 43 (19.72%) Docker
2 17 (7.80%) VMware Infrastructure
3 12 (5.50%) Active Directory
4 6 (2.75%) NFS
4 6 (2.75%) VMware ESXi
5 4 (1.83%) Hyper-V
5 4 (1.83%) Veritas File System
5 4 (1.83%) Veritas Volume Manager
6 3 (1.38%) Oracle RAC
6 3 (1.38%) RACF
6 3 (1.38%) VMware NSX
7 2 (0.92%) Firmware
7 2 (0.92%) GPFS
7 2 (0.92%) Virtual Desktop
7 2 (0.92%) Virtual Machines
7 2 (0.92%) vSphere
8 1 (0.46%) Microsoft App-V
Systems Management
1 66 (30.28%) Terraform
2 51 (23.39%) Ansible
3 46 (21.10%) Kubernetes
4 15 (6.88%) Grafana
4 15 (6.88%) Prometheus
5 12 (5.50%) FortiGate
6 7 (3.21%) ITRS Geneos
6 7 (3.21%) Kibana
7 6 (2.75%) Red Hat Satellite
8 5 (2.29%) Puppet
9 4 (1.83%) logstash
9 4 (1.83%) Microsoft Intune
9 4 (1.83%) OMEGAMON
9 4 (1.83%) QRadar
10 3 (1.38%) Rancher
10 3 (1.38%) Single Sign-On
11 2 (0.92%) Argo
11 2 (0.92%) Istio
11 2 (0.92%) vCenter Server
11 2 (0.92%) vMotion
Vendors
1 21 (9.63%) F5
2 19 (8.72%) Microsoft
2 19 (8.72%) VMware
3 18 (8.26%) Cisco
4 15 (6.88%) Red Hat
4 15 (6.88%) Splunk
5 13 (5.96%) Palo Alto
5 13 (5.96%) Solace
6 11 (5.05%) Nokia
6 11 (5.05%) SAP
7 9 (4.13%) CheckPoint
7 9 (4.13%) Fortinet
8 8 (3.67%) Ericsson
8 8 (3.67%) Oracle
8 8 (3.67%) SolarWinds
9 7 (3.21%) Actix
9 7 (3.21%) Juniper
10 6 (2.75%) Databricks
10 6 (2.75%) Google
11 5 (2.29%) Zscaler