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

6 months to
22 Dec 2025
Same period 2024 Same period 2023
Rank 180 142 179
Rank change year-on-year -38 +37 +65
Contract jobs citing High Availability 212 266 248
As % of all contract jobs in London 1.48% 1.78% 1.33%
As % of the Processes & Methodologies category 1.62% 1.98% 1.49%
Number of daily rates quoted 145 172 188
10th Percentile £375 £308 £352
25th Percentile £425 £463 £507
Median daily rate (50th Percentile) £500 £575 £600
Median % change year-on-year -13.04% -4.17% -
75th Percentile £650 £680 £681
90th Percentile £775 £775 £700
England median daily rate £500 £550 £555
% change year-on-year -9.09% -0.90% -1.33%
Number of hourly rates quoted 3 7 3
10th Percentile £23.60 £22.26 £62.00
25th Percentile £24.50 - £72.50
Median hourly rate £26.00 £23.80 £90.00
Median % change year-on-year +9.24% -73.56% +250.06%
75th Percentile - - £91.88
90th Percentile - £54.28 £93.00
England median hourly rate £69.63 £23.80 £88.50
% change year-on-year +192.55% -73.11% +244.22%

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 13,080 13,458 16,689
As % of all contract IT jobs advertised in London 91.35% 90.13% 89.33%
Number of daily rates quoted 8,615 8,640 11,962
10th Percentile £350 £350 £350
25th Percentile £425 £450 £456
Median daily rate (50th Percentile) £526 £550 £565
Median % change year-on-year -4.45% -2.57% -4.32%
75th Percentile £650 £675 £688
90th Percentile £760 £800 £788
England median daily rate £505 £525 £540
% change year-on-year -3.81% -2.78% -1.82%
Number of hourly rates quoted 235 165 235
10th Percentile £18.09 £18.04 £18.40
25th Percentile £24.61 £23.80 £21.13
Median hourly rate £30.00 £36.50 £32.69
Median % change year-on-year -17.81% +11.65% -15.64%
75th Percentile £52.19 £55.00 £60.00
90th Percentile £67.10 £80.75 £74.50
England median hourly rate £25.15 £35.00 £44.50
% change year-on-year -28.14% -21.35% +22.57%

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 22 December 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 22 December 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 -18 32 £530 -7.83% 37
West London -10 9 £375 -21.05% 4
South London - 4 - - 8
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 4 (1.89%) Apache Spark
2 3 (1.42%) Apache
2 3 (1.42%) Confluence
2 3 (1.42%) Ethereum
2 3 (1.42%) Hyperledger
2 3 (1.42%) Microsoft Exchange
3 2 (0.94%) CICS
3 2 (0.94%) nginx
3 2 (0.94%) Oracle HTTP Server
3 2 (0.94%) SAS
3 2 (0.94%) Tomcat
3 2 (0.94%) WebLogic
4 1 (0.47%) Apache Airflow
4 1 (0.47%) Drupal
4 1 (0.47%) OpenStack
4 1 (0.47%) SharePoint
4 1 (0.47%) WordPress
Applications
1 1 (0.47%) Chatbot
1 1 (0.47%) Microsoft Excel
1 1 (0.47%) Microsoft Office
1 1 (0.47%) Weka
Business Applications
1 6 (2.83%) SAP S/4HANA
2 3 (1.42%) BASE24
2 3 (1.42%) Payment Gateway
3 1 (0.47%) Eikon
3 1 (0.47%) Eze OMS
3 1 (0.47%) Fidessa
Cloud Services
1 62 (29.25%) AWS
2 57 (26.89%) Azure
3 27 (12.74%) GitHub
4 22 (10.38%) GCP
5 21 (9.91%) Amazon S3
6 20 (9.43%) Amazon CloudWatch
6 20 (9.43%) Serverless
7 18 (8.49%) Virtual Private Cloud
8 17 (8.02%) AWS Lambda
9 15 (7.08%) Amazon EC2
10 14 (6.60%) AWS CloudFormation
10 14 (6.60%) GitHub Actions
11 12 (5.66%) Azure DevOps
12 9 (4.25%) Amazon ECS
12 9 (4.25%) Amazon ELB
12 9 (4.25%) Datadog
13 8 (3.77%) Amazon EKS
13 8 (3.77%) Entra ID
14 7 (3.30%) Akamai
14 7 (3.30%) Google Kubernetes Engine
Communications & Networking
1 35 (16.51%) Firewall
2 29 (13.68%) DNS
3 23 (10.85%) TCP/IP
3 23 (10.85%) VPN
4 16 (7.55%) Network Security
5 15 (7.08%) SSL
6 12 (5.66%) Multicast
6 12 (5.66%) Wireshark
7 11 (5.19%) WAN
8 10 (4.72%) BGP
9 9 (4.25%) DHCP
9 9 (4.25%) HTTP
9 9 (4.25%) OSPF
10 8 (3.77%) 4G
11 7 (3.30%) 3GPP
11 7 (3.30%) LAN
11 7 (3.30%) LTE
11 7 (3.30%) Radio Access Network
12 6 (2.83%) Cisco Nexus
12 6 (2.83%) SD-WAN
Database & Business Intelligence
1 17 (8.02%) PostgreSQL
2 13 (6.13%) Relational Database
3 9 (4.25%) MySQL
3 9 (4.25%) NoSQL
4 8 (3.77%) Amazon RDS
5 7 (3.30%) Elasticsearch
5 7 (3.30%) MongoDB
5 7 (3.30%) SQL Server
6 5 (2.36%) Azure SQL Database
6 5 (2.36%) Oracle Database
7 4 (1.89%) DB2
8 3 (1.42%) Big Data
8 3 (1.42%) Data Warehouse
8 3 (1.42%) DynamoDB
8 3 (1.42%) Hadoop
8 3 (1.42%) NonStop SQL
8 3 (1.42%) OLTP
8 3 (1.42%) RDBMS
8 3 (1.42%) SQL Server Integration Services
8 3 (1.42%) SQL Server Reporting Services
Development Applications
1 38 (17.92%) Jenkins
2 29 (13.68%) Git
3 21 (9.91%) GitLab
4 9 (4.25%) JIRA
5 7 (3.30%) GCC
6 6 (2.83%) GDB
7 4 (1.89%) Cypress.io
7 4 (1.89%) Robot Framework
7 4 (1.89%) Subversion
7 4 (1.89%) TeamCity
8 3 (1.42%) MLflow
8 3 (1.42%) Sonatype Nexus
9 2 (0.94%) Artifactory
9 2 (0.94%) Bitbucket
9 2 (0.94%) IBM UrbanCode
9 2 (0.94%) JUnit
9 2 (0.94%) SonarQube
9 2 (0.94%) Team Foundation Server
10 1 (0.47%) Gradle
10 1 (0.47%) Mocha
General
1 81 (38.21%) Social Skills
2 48 (22.64%) Finance
3 30 (14.15%) Banking
4 27 (12.74%) Analytical Skills
5 17 (8.02%) Public Sector
6 9 (4.25%) Inclusion and Diversity
6 9 (4.25%) Telecoms
7 7 (3.30%) Influencing Skills
8 6 (2.83%) Financial Institution
8 6 (2.83%) Front Office
8 6 (2.83%) Retail
9 5 (2.36%) International Banking
9 5 (2.36%) Investment Banking
9 5 (2.36%) Legal
10 4 (1.89%) Documentation Skills
11 3 (1.42%) Organisational Skills
12 2 (0.94%) Digital Healthcare
12 2 (0.94%) Manufacturing
12 2 (0.94%) Military
12 2 (0.94%) Presentation Skills
Job Titles
1 26 (12.26%) Developer
1 26 (12.26%) Senior
2 21 (9.91%) DevOps Engineer
3 17 (8.02%) Architect
4 16 (7.55%) Network Engineer
5 15 (7.08%) Lead
6 12 (5.66%) Infrastructure Engineer
7 9 (4.25%) Administrator
7 9 (4.25%) Consultant
7 9 (4.25%) Senior DevOps
7 9 (4.25%) Senior DevOps Engineer
8 8 (3.77%) Java Engineer
8 8 (3.77%) Network Specialist
9 7 (3.30%) DBA
9 7 (3.30%) Network Design Specialist
9 7 (3.30%) Performance Specialist
9 7 (3.30%) Site Reliability Engineer
9 7 (3.30%) Support Engineer
10 6 (2.83%) C++ Developer
10 6 (2.83%) Linux Administrator
Libraries, Frameworks & Software Standards
1 17 (8.02%) RESTful
2 16 (7.55%) Spring
3 15 (7.08%) REST
4 12 (5.66%) Kafka
4 12 (5.66%) Spring Boot
5 11 (5.19%) OAuth
6 10 (4.72%) FIX Protocol
6 10 (4.72%) JSON
6 10 (4.72%) Middleware
6 10 (4.72%) XML
7 9 (4.25%) Elastic Stack
8 8 (3.77%) .NET
9 7 (3.30%) Node.js
10 6 (2.83%) ARM Templates
10 6 (2.83%) Boost C++ Libraries
10 6 (2.83%) OAuth2
10 6 (2.83%) STL
11 5 (2.36%) AngularJS
11 5 (2.36%) Ultra Messaging
12 4 (1.89%) JPA
Miscellaneous
1 35 (16.51%) Cloud Native
2 22 (10.38%) Replication
3 15 (7.08%) Distributed Systems
4 14 (6.60%) Hybrid Cloud
5 12 (5.66%) Foreign Exchange (FX)
6 11 (5.19%) Data Centre
7 9 (4.25%) Clustering
7 9 (4.25%) Mainframe
7 9 (4.25%) Onboarding
8 7 (3.30%) Distributed Architecture
9 5 (2.36%) Private Cloud
9 5 (2.36%) Product Ownership
10 4 (1.89%) Algorithms
10 4 (1.89%) Data Protection Act
10 4 (1.89%) Fixed Income
10 4 (1.89%) Public Cloud
10 4 (1.89%) Self-Motivation
11 3 (1.42%) DataPower
11 3 (1.42%) EMV
11 3 (1.42%) Tandem
Operating Systems
1 49 (23.11%) Linux
2 19 (8.96%) Windows
3 14 (6.60%) Red Hat Enterprise Linux
4 10 (4.72%) Unix
5 8 (3.77%) VMS
5 8 (3.77%) Windows Server
6 6 (2.83%) CentOS
6 6 (2.83%) Ubuntu
7 5 (2.36%) Solaris
8 4 (1.89%) zOS
9 3 (1.42%) Android
10 2 (0.94%) Apple iOS
10 2 (0.94%) Windows Server 2016
11 1 (0.47%) AIX
11 1 (0.47%) Windows 10
11 1 (0.47%) Windows Server 2019
Processes & Methodologies
1 93 (43.87%) DevOps
2 87 (41.04%) CI/CD
3 57 (26.89%) Problem-Solving
4 55 (25.94%) Infrastructure as Code
5 47 (22.17%) Containerisation
6 40 (18.87%) Agile
7 36 (16.98%) Microservices
8 33 (15.57%) Root Cause Analysis
9 32 (15.09%) Observability
10 31 (14.62%) Continuous Improvement
10 31 (14.62%) Low Latency
11 29 (13.68%) Disaster Recovery
12 28 (13.21%) Performance Tuning
13 24 (11.32%) Incident Response
14 21 (9.91%) Infrastructure Automation
14 21 (9.91%) Migration
14 21 (9.91%) Test Automation
15 20 (9.43%) Infrastructure Engineering
15 20 (9.43%) ITIL
15 20 (9.43%) Stakeholder Management
Programming Languages
1 84 (39.62%) Python
2 41 (19.34%) Bash
3 36 (16.98%) SQL
4 29 (13.68%) Java
5 24 (11.32%) PowerShell
6 13 (6.13%) Perl
7 10 (4.72%) JavaScript
8 8 (3.77%) C#
9 7 (3.30%) C++
9 7 (3.30%) Shell Script
10 5 (2.36%) Go
11 4 (1.89%) Bicep
11 4 (1.89%) C
11 4 (1.89%) COBOL
11 4 (1.89%) REXX
12 3 (1.42%) Assembly Language
12 3 (1.42%) PHP
12 3 (1.42%) PromQL
13 2 (0.94%) PL/1
13 2 (0.94%) T-SQL
Qualifications
1 31 (14.62%) Security Cleared
2 23 (10.85%) SC Cleared
3 9 (4.25%) AWS Certification
4 7 (3.30%) Cisco Certification
4 7 (3.30%) Degree
5 6 (2.83%) AWS Certified Solutions Architect
5 6 (2.83%) Computer Science Degree
6 5 (2.36%) Azure Certification
6 5 (2.36%) CCNA
6 5 (2.36%) CCNP
6 5 (2.36%) ITIL Certification
7 4 (1.89%) DV Cleared
8 3 (1.42%) AWS Certified DevOps Engineer
8 3 (1.42%) CCIE
9 2 (0.94%) OCP
9 2 (0.94%) Oracle Certification
9 2 (0.94%) PMI Certification
9 2 (0.94%) PMP
9 2 (0.94%) RHCE
10 1 (0.47%) Microsoft Certification
Quality Assurance & Compliance
1 9 (4.25%) GDPR
2 7 (3.30%) QA
3 5 (2.36%) Sarbanes-Oxley
4 3 (1.42%) ISO 8583
4 3 (1.42%) PCI DSS
5 2 (0.94%) Data Quality
5 2 (0.94%) HIPAA
6 1 (0.47%) Accessibility
6 1 (0.47%) California Consumer Privacy Act
6 1 (0.47%) NCSC
6 1 (0.47%) NIST
6 1 (0.47%) SLA
System Software
1 51 (24.06%) Docker
2 15 (7.08%) VMware Infrastructure
3 10 (4.72%) Active Directory
4 7 (3.30%) VMware ESXi
5 6 (2.83%) vSphere
6 5 (2.36%) NFS
6 5 (2.36%) Virtual Machines
7 4 (1.89%) Veritas File System
7 4 (1.89%) Veritas Volume Manager
7 4 (1.89%) VMware NSX
8 2 (0.94%) GPFS
8 2 (0.94%) Hyper-V
8 2 (0.94%) RACF
8 2 (0.94%) Virtual Desktop
9 1 (0.47%) Apache ZooKeeper
9 1 (0.47%) HDFS
9 1 (0.47%) Lustre
9 1 (0.47%) Microsoft App-V
9 1 (0.47%) Oracle RAC
9 1 (0.47%) Slurm Workload Manager
Systems Management
1 66 (31.13%) Terraform
2 56 (26.42%) Kubernetes
3 51 (24.06%) Ansible
4 21 (9.91%) Grafana
5 19 (8.96%) Prometheus
6 12 (5.66%) ITRS Geneos
7 8 (3.77%) FortiGate
7 8 (3.77%) Kibana
8 5 (2.36%) logstash
8 5 (2.36%) Puppet
8 5 (2.36%) Red Hat Satellite
8 5 (2.36%) vCenter Server
9 4 (1.89%) QRadar
10 3 (1.42%) Argo
10 3 (1.42%) Microsoft Intune
10 3 (1.42%) OMEGAMON
11 2 (0.94%) Kubeflow
11 2 (0.94%) Nagios
11 2 (0.94%) SCCM
11 2 (0.94%) ZABBIX
Vendors
1 23 (10.85%) Splunk
2 18 (8.49%) F5
2 18 (8.49%) Microsoft
3 16 (7.55%) Red Hat
3 16 (7.55%) VMware
4 14 (6.60%) Cisco
4 14 (6.60%) Palo Alto
5 10 (4.72%) Oracle
5 10 (4.72%) Solace
6 9 (4.25%) CheckPoint
6 9 (4.25%) Nokia
7 8 (3.77%) Ericsson
7 8 (3.77%) Fortinet
8 7 (3.30%) Actix
8 7 (3.30%) Databricks
8 7 (3.30%) SAP
9 6 (2.83%) Google
10 5 (2.36%) IBM
10 5 (2.36%) SolarWinds
10 5 (2.36%) TIBCO