High Availability Job Trends in the City of London

High Availability
Central London > City of London

The table below provides summary statistics and salary benchmarking for jobs advertised in the City of London requiring High Availability skills. It covers vacancies from the 6 months leading up to 13 September 2025, with comparisons to the same periods in the previous two years.

6 months to
13 Sep 2025
Same period 2024 Same period 2023
Rank 99 129 149
Rank change year-on-year +30 +20 +94
Permanent jobs citing High Availability 30 38 45
As % of all permanent jobs advertised in the City of London 1.72% 1.33% 1.28%
As % of the Processes & Methodologies category 1.80% 1.43% 1.35%
Number of salaries quoted 29 25 36
10th Percentile £62,500 £60,000 £59,375
25th Percentile £67,500 £63,750 £72,500
Median annual salary (50th Percentile) £80,000 £75,000 £85,000
Median % change year-on-year +6.67% -11.76% +3.03%
75th Percentile £100,000 £87,500 £96,250
90th Percentile £130,000 £95,000 £120,000
Central London median annual salary £80,000 £75,000 £75,000
% change year-on-year +6.67% - -10.45%

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 permanent job vacancies requiring process or methodology skills in the City of London.

Permanent vacancies with a requirement for process or methodology skills 1,671 2,649 3,338
As % of all permanent jobs advertised in the City of London 95.98% 93.05% 95.15%
Number of salaries quoted 1,321 1,859 2,989
10th Percentile £40,000 £43,125 £42,500
25th Percentile £55,000 £55,000 £55,000
Median annual salary (50th Percentile) £72,500 £75,000 £75,000
Median % change year-on-year -3.33% - +3.45%
75th Percentile £95,000 £95,000 £96,250
90th Percentile £122,500 £112,500 £115,000
Central London median annual salary £75,000 £72,500 £73,500
% change year-on-year +3.45% -1.36% +1.38%

High Availability
Job Vacancy Trend in the City of London

Job postings citing High Availability as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for High Availability in the City of London

High Availability
Salary Trend in the City of London

Salary distribution trend for jobs in the City of London citing High Availability.

Salary distribution trend for jobs in the City of London citing High Availability

High Availability
Salary Histogram in the City of London

Salary distribution for jobs citing High Availability in the City of London over the 6 months to 13 September 2025.

Salary histogram for High Availability in the City of London

High Availability
Co-occurring Skills and Capabilities in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 3 (10.00%) Microsoft Exchange
2 1 (3.33%) Alfresco
2 1 (3.33%) Apache
2 1 (3.33%) Camunda
2 1 (3.33%) Oracle Workflow
Applications
1 1 (3.33%) Microsoft Excel
1 1 (3.33%) Microsoft Office
Business Applications
1 4 (13.33%) Payment Gateway
Cloud Services
1 13 (43.33%) Azure
2 12 (40.00%) AWS
3 5 (16.67%) Amazon ECS
3 5 (16.67%) AWS Lambda
3 5 (16.67%) Serverless
3 5 (16.67%) Virtual Private Cloud
4 4 (13.33%) Amazon SQS
5 3 (10.00%) AWS CodePipeline
5 3 (10.00%) Azure DevOps
5 3 (10.00%) Azure Monitor
5 3 (10.00%) Power Platform
6 2 (6.67%) Microsoft 365
6 2 (6.67%) SaaS
7 1 (3.33%) Amazon CloudWatch
7 1 (3.33%) Amazon EC2
7 1 (3.33%) Amazon S3
7 1 (3.33%) Amazon SageMaker
7 1 (3.33%) Cloud Computing
7 1 (3.33%) Dynamics 365
7 1 (3.33%) GitHub
Communications & Networking
1 5 (16.67%) Network Security
2 2 (6.67%) Firewall
2 2 (6.67%) SD-WAN
2 2 (6.67%) VLAN
3 1 (3.33%) BGP
3 1 (3.33%) Cisco Wireless
3 1 (3.33%) HSRP
3 1 (3.33%) LAN
3 1 (3.33%) OSPF
3 1 (3.33%) TCP/IP
3 1 (3.33%) VPN
3 1 (3.33%) WAN
3 1 (3.33%) Wireless
Database & Business Intelligence
1 5 (16.67%) DynamoDB
2 4 (13.33%) Data Lake
2 4 (13.33%) OLAP
2 4 (13.33%) OLTP
2 4 (13.33%) SQL Server
3 3 (10.00%) ClickHouse
3 3 (10.00%) Power BI
3 3 (10.00%) SQL Server Analysis Services
4 2 (6.67%) Amazon RDS
4 2 (6.67%) Data Hub
4 2 (6.67%) Metadata
4 2 (6.67%) SQL CLR
4 2 (6.67%) SQL Server Reporting Services
5 1 (3.33%) Data Warehouse
5 1 (3.33%) KDB
5 1 (3.33%) MySQL
5 1 (3.33%) RDBMS
5 1 (3.33%) Redis
5 1 (3.33%) Relational Database
5 1 (3.33%) SQL Server Integration Services
Development Applications
1 7 (23.33%) Jenkins
2 1 (3.33%) Git
2 1 (3.33%) Visual Studio
General
1 13 (43.33%) Finance
2 9 (30.00%) Social Skills
3 7 (23.33%) Analytical Skills
3 7 (23.33%) Banking
4 2 (6.67%) Back Office
4 2 (6.67%) Front Office
5 1 (3.33%) Automotive
5 1 (3.33%) Law
5 1 (3.33%) Legal
5 1 (3.33%) Public Sector
Job Titles
1 8 (26.67%) Developer
1 8 (26.67%) Senior
2 6 (20.00%) Lead
3 3 (10.00%) Azure Engineer
3 3 (10.00%) Infrastructure Engineer
3 3 (10.00%) Network Engineer
4 2 (6.67%) Azure Infrastructure Engineer
4 2 (6.67%) Data Engineer
4 2 (6.67%) Java Developer
4 2 (6.67%) Microsoft Developer
4 2 (6.67%) Platform Engineer
4 2 (6.67%) SaaS Developer
4 2 (6.67%) Senior Developer
4 2 (6.67%) Senior Infrastructure Engineer
4 2 (6.67%) Senior Microsoft Developer
4 2 (6.67%) Senior SQL Developer
4 2 (6.67%) SQL Developer
5 1 (3.33%) Administrator
5 1 (3.33%) DBA
5 1 (3.33%) Lead Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 5 (16.67%) Spring
2 4 (13.33%) Node.js
3 1 (3.33%) AngularJS
3 1 (3.33%) Apache NiFi
3 1 (3.33%) AWS CDK
3 1 (3.33%) Hibernate
3 1 (3.33%) HTML
3 1 (3.33%) JPA
3 1 (3.33%) Kafka
3 1 (3.33%) RabbitMQ
3 1 (3.33%) React
3 1 (3.33%) REST
3 1 (3.33%) Spring Boot
3 1 (3.33%) Ultra Messaging
3 1 (3.33%) Web Services
Miscellaneous
1 6 (20.00%) Cloud Native
2 3 (10.00%) Private Cloud
3 2 (6.67%) Derivative
3 2 (6.67%) Equities
3 2 (6.67%) Foreign Exchange (FX)
4 1 (3.33%) Algorithms
4 1 (3.33%) Clustering
4 1 (3.33%) Data Centre
4 1 (3.33%) Distributed Systems
4 1 (3.33%) Fixed Income
4 1 (3.33%) Hedge funds
4 1 (3.33%) Industrial Internet of Things
4 1 (3.33%) Management Information System
4 1 (3.33%) Onboarding
4 1 (3.33%) Operational Technology
4 1 (3.33%) SCADA
4 1 (3.33%) Security Posture
Operating Systems
1 6 (20.00%) Linux
2 4 (13.33%) Unix
3 3 (10.00%) Windows
4 2 (6.67%) Windows Server
5 1 (3.33%) Windows Server 2016
5 1 (3.33%) Windows Server 2019
Processes & Methodologies
1 13 (43.33%) CI/CD
1 13 (43.33%) DevOps
2 9 (30.00%) Infrastructure as Code
3 8 (26.67%) Fintech
3 8 (26.67%) Problem-Solving
4 7 (23.33%) Agile
4 7 (23.33%) Project Management
5 5 (16.67%) Decision-Making
5 5 (16.67%) Incident Management
5 5 (16.67%) Infrastructure Engineering
5 5 (16.67%) Mentoring
5 5 (16.67%) Migration
5 5 (16.67%) Observability
5 5 (16.67%) Risk Management
5 5 (16.67%) Software Engineering
6 4 (13.33%) BDD
6 4 (13.33%) CQRS
6 4 (13.33%) Data-Driven Decision Making
6 4 (13.33%) Performance Optimisation
6 4 (13.33%) Stress Testing
Programming Languages
1 8 (26.67%) SQL
2 6 (20.00%) Java
3 5 (16.67%) Python
4 4 (13.33%) TypeScript
5 3 (10.00%) C++
5 3 (10.00%) T-SQL
6 2 (6.67%) C#
6 2 (6.67%) PowerShell
7 1 (3.33%) Bash
Qualifications
1 3 (10.00%) Degree
2 2 (6.67%) AWS Certification
2 2 (6.67%) CCNP
2 2 (6.67%) Cisco Certification
2 2 (6.67%) Computer Science Degree
2 2 (6.67%) SC Cleared
2 2 (6.67%) Security Cleared
3 1 (3.33%) Azure Certification
3 1 (3.33%) CCIE
3 1 (3.33%) DV Cleared
3 1 (3.33%) JNCIP
3 1 (3.33%) Master's Degree
3 1 (3.33%) MCSE
3 1 (3.33%) Microsoft Certification
3 1 (3.33%) PMI Certification
3 1 (3.33%) PMP
3 1 (3.33%) SnowPro
Quality Assurance & Compliance
1 4 (13.33%) GDPR
1 4 (13.33%) PCI DSS
1 4 (13.33%) QA
1 4 (13.33%) SLA
2 1 (3.33%) Data Quality
2 1 (3.33%) ISO/IEC 27001
2 1 (3.33%) NIST
System Software
1 3 (10.00%) Active Directory
1 3 (10.00%) VMware Infrastructure
2 1 (3.33%) Apache ZooKeeper
2 1 (3.33%) Docker
2 1 (3.33%) Hyper-V
Systems Management
1 6 (20.00%) Terraform
2 5 (16.67%) Ansible
3 4 (13.33%) Prometheus
4 3 (10.00%) Grafana
4 3 (10.00%) Kubernetes
4 3 (10.00%) SCOM
5 2 (6.67%) Failover Clustering
6 1 (3.33%) Argo
6 1 (3.33%) Istio
6 1 (3.33%) Microsoft Clustering
6 1 (3.33%) Microsoft Intune
6 1 (3.33%) NetBackup
Vendors
1 4 (13.33%) Google
1 4 (13.33%) Microsoft
1 4 (13.33%) VMware
2 3 (10.00%) SolarWinds
3 2 (6.67%) Cisco
4 1 (3.33%) Aderant
4 1 (3.33%) EMC
4 1 (3.33%) Fortinet
4 1 (3.33%) iManage
4 1 (3.33%) Intapp
4 1 (3.33%) Juniper
4 1 (3.33%) NetApp
4 1 (3.33%) Oracle
4 1 (3.33%) Palo Alto
4 1 (3.33%) RedGate
4 1 (3.33%) SAP
4 1 (3.33%) ServiceNow
4 1 (3.33%) Solace