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 permanent job vacancies from the 6 months leading up to 6 November 2025, with comparisons to the same periods in the previous two years.

6 months to
6 Nov 2025
Same period 2024 Same period 2023
Rank 98 106 123
Rank change year-on-year +8 +17 +124
Permanent jobs citing High Availability 28 63 50
As % of all permanent jobs in the City of London 1.74% 2.29% 1.65%
As % of the Processes & Methodologies category 1.83% 2.43% 1.74%
Number of salaries quoted 27 39 44
10th Percentile £62,500 £60,000 £61,625
25th Percentile £67,500 £72,500 £73,750
Median annual salary (50th Percentile) £80,000 £77,500 £83,750
Median % change year-on-year +3.23% -7.46% -1.47%
75th Percentile £96,250 £104,375 £91,250
90th Percentile £127,000 £137,500 £120,000
Central London median annual salary £80,000 £77,500 £77,500
% change year-on-year +3.23% - -8.82%

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 1,531 2,592 2,880
As % of all permanent jobs advertised in the City of London 95.33% 94.08% 95.02%
Number of salaries quoted 1,191 1,699 2,597
10th Percentile £40,000 £46,250 £41,250
25th Percentile £57,250 £55,000 £55,000
Median annual salary (50th Percentile) £75,000 £75,000 £75,000
75th Percentile £97,500 £95,000 £96,250
90th Percentile £122,500 £115,000 £115,000
Central London median annual salary £75,000 £75,000 £72,500
% change year-on-year - +3.45% -3.33%

High Availability
Job Vacancy Trend in the City of London

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

High Availability job vacancy trend 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 6 November 2025.

Salary histogram for High Availability in the City of London

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 (3.57%) Apache Spark
1 1 (3.57%) Microsoft Exchange
1 1 (3.57%) Oracle Workflow
1 1 (3.57%) SharePoint
Applications
1 1 (3.57%) Microsoft Excel
1 1 (3.57%) Microsoft Office
Business Applications
1 2 (7.14%) Payment Gateway
Cloud Services
1 13 (46.43%) AWS
1 13 (46.43%) Azure
2 5 (17.86%) Amazon ECS
2 5 (17.86%) AWS Lambda
2 5 (17.86%) Serverless
3 4 (14.29%) Azure DevOps
3 4 (14.29%) Azure Monitor
3 4 (14.29%) Virtual Private Cloud
4 3 (10.71%) Amazon EC2
4 3 (10.71%) Amazon S3
4 3 (10.71%) AWS CloudFormation
4 3 (10.71%) AWS CodePipeline
4 3 (10.71%) Snowflake
5 2 (7.14%) Amazon EKS
5 2 (7.14%) Amazon SQS
5 2 (7.14%) AWS Step Functions
5 2 (7.14%) GitHub Actions
5 2 (7.14%) Microsoft 365
5 2 (7.14%) Power Platform
5 2 (7.14%) SaaS
Communications & Networking
1 5 (17.86%) Network Security
2 2 (7.14%) Firewall
2 2 (7.14%) SD-WAN
2 2 (7.14%) VLAN
3 1 (3.57%) BGP
3 1 (3.57%) Cisco Wireless
3 1 (3.57%) HSRP
3 1 (3.57%) Kerberos
3 1 (3.57%) LAN
3 1 (3.57%) OSPF
3 1 (3.57%) TCP/IP
3 1 (3.57%) VPN
3 1 (3.57%) WAN
3 1 (3.57%) Wireless
Database & Business Intelligence
1 4 (14.29%) DynamoDB
2 3 (10.71%) Amazon RDS
2 3 (10.71%) Data Lake
2 3 (10.71%) Data Warehouse
3 2 (7.14%) Amazon Redshift
3 2 (7.14%) OLAP
3 2 (7.14%) OLTP
3 2 (7.14%) Power BI
3 2 (7.14%) SQL Server
3 2 (7.14%) SQL Server Analysis Services
4 1 (3.57%) Apache Hive
4 1 (3.57%) Big Data
4 1 (3.57%) Hadoop
4 1 (3.57%) KDB
4 1 (3.57%) Kdb+
4 1 (3.57%) RDBMS
4 1 (3.57%) Relational Database
4 1 (3.57%) SQL CLR
4 1 (3.57%) SQL Server Integration Services
4 1 (3.57%) SQL Server Reporting Services
Development Applications
1 5 (17.86%) Jenkins
2 1 (3.57%) Bitbucket
2 1 (3.57%) Git
2 1 (3.57%) Visual Studio
General
1 10 (35.71%) Social Skills
2 8 (28.57%) Finance
3 5 (17.86%) Analytical Skills
4 4 (14.29%) Banking
5 2 (7.14%) Front Office
6 1 (3.57%) Automotive
6 1 (3.57%) Back Office
6 1 (3.57%) Investment Banking
6 1 (3.57%) Law
6 1 (3.57%) Legal
6 1 (3.57%) Public Sector
Job Titles
1 9 (32.14%) Senior
2 7 (25.00%) Lead
3 4 (14.29%) Developer
4 3 (10.71%) Azure Engineer
4 3 (10.71%) Infrastructure Engineer
4 3 (10.71%) Network Engineer
4 3 (10.71%) Senior Infrastructure Engineer
5 2 (7.14%) Architect
5 2 (7.14%) Azure Infrastructure Engineer
5 2 (7.14%) Data Engineer
5 2 (7.14%) DevOps Engineer
5 2 (7.14%) Senior Data Engineer
6 1 (3.57%) Algorithmic Trading Developer
6 1 (3.57%) Java Developer - Algorithmic Trading
6 1 (3.57%) KDB Developer
6 1 (3.57%) Lead DevOps
6 1 (3.57%) SaaS Developer
6 1 (3.57%) Site Reliability Engineer
6 1 (3.57%) Snowflake Data Engineer
6 1 (3.57%) Snowflake Engineer
Libraries, Frameworks & Software Standards
1 2 (7.14%) Node.js
1 2 (7.14%) Spring
2 1 (3.57%) ARM Templates
2 1 (3.57%) AWS CDK
2 1 (3.57%) JDBC
2 1 (3.57%) Kafka
2 1 (3.57%) LDAP
2 1 (3.57%) OAuth
2 1 (3.57%) OAuth2
2 1 (3.57%) ODBC
2 1 (3.57%) OpenTelemetry
2 1 (3.57%) RESTful
2 1 (3.57%) Semantic Kernel
2 1 (3.57%) Ultra Messaging
2 1 (3.57%) Web Services
Miscellaneous
1 5 (17.86%) Cloud Native
2 2 (7.14%) Private Cloud
3 1 (3.57%) Algorithms
3 1 (3.57%) Clustering
3 1 (3.57%) Data Centre
3 1 (3.57%) Derivative
3 1 (3.57%) Distributed Architecture
3 1 (3.57%) Distributed Systems
3 1 (3.57%) Enterprise Software
3 1 (3.57%) Equities
3 1 (3.57%) Foreign Exchange (FX)
3 1 (3.57%) Industrial Internet of Things
3 1 (3.57%) Onboarding
3 1 (3.57%) Operational Technology
3 1 (3.57%) Product Ownership
3 1 (3.57%) Reinsurance
3 1 (3.57%) SCADA
3 1 (3.57%) Security Posture
Operating Systems
1 3 (10.71%) Linux
1 3 (10.71%) Unix
1 3 (10.71%) Windows
2 1 (3.57%) Windows Server
Processes & Methodologies
1 12 (42.86%) CI/CD
2 11 (39.29%) Infrastructure as Code
3 10 (35.71%) DevOps
4 6 (21.43%) Observability
4 6 (21.43%) Problem-Solving
5 5 (17.86%) Agile
5 5 (17.86%) Analytics
5 5 (17.86%) Mentoring
6 4 (14.29%) AI
6 4 (14.29%) Computer Science
6 4 (14.29%) Cybersecurity
6 4 (14.29%) Disaster Recovery
6 4 (14.29%) Fintech
6 4 (14.29%) Identity Access Management
6 4 (14.29%) Infrastructure Engineering
6 4 (14.29%) Project Management
7 3 (10.71%) Data Pipeline
7 3 (10.71%) Data Protection
7 3 (10.71%) Performance Management
7 3 (10.71%) Roadmaps
Programming Languages
1 7 (25.00%) Python
2 6 (21.43%) SQL
3 4 (14.29%) Java
4 2 (7.14%) Bash
4 2 (7.14%) PowerShell
4 2 (7.14%) T-SQL
4 2 (7.14%) TypeScript
5 1 (3.57%) Bicep
5 1 (3.57%) C#
5 1 (3.57%) C++
Qualifications
1 5 (17.86%) Degree
2 3 (10.71%) Computer Science Degree
3 2 (7.14%) AWS Certification
3 2 (7.14%) CCNP
3 2 (7.14%) Cisco Certification
4 1 (3.57%) Azure Certification
4 1 (3.57%) CCIE
4 1 (3.57%) DV Cleared
4 1 (3.57%) JNCIP
4 1 (3.57%) Master's Degree
4 1 (3.57%) MCSE
4 1 (3.57%) Microsoft Certification
4 1 (3.57%) PMI Certification
4 1 (3.57%) PMP
4 1 (3.57%) SC Cleared
4 1 (3.57%) Security Cleared
4 1 (3.57%) SnowPro
Quality Assurance & Compliance
1 3 (10.71%) GDPR
1 3 (10.71%) ISO/IEC 27001
2 2 (7.14%) PCI DSS
2 2 (7.14%) QA
2 2 (7.14%) SLA
3 1 (3.57%) Data Quality
3 1 (3.57%) NIST
3 1 (3.57%) SOC 2
System Software
1 3 (10.71%) Active Directory
2 2 (7.14%) VMware Infrastructure
3 1 (3.57%) Docker
3 1 (3.57%) Hyper-V
Systems Management
1 7 (25.00%) Terraform
2 5 (17.86%) Kubernetes
3 4 (14.29%) Prometheus
4 3 (10.71%) Ansible
4 3 (10.71%) Grafana
4 3 (10.71%) SCOM
5 2 (7.14%) Argo
6 1 (3.57%) Failover Clustering
6 1 (3.57%) Microsoft Clustering
6 1 (3.57%) Microsoft Intune
Vendors
1 4 (14.29%) Microsoft
2 3 (10.71%) Cisco
2 3 (10.71%) SolarWinds
3 2 (7.14%) Google
3 2 (7.14%) VMware
4 1 (3.57%) Aderant
4 1 (3.57%) Databricks
4 1 (3.57%) Dell
4 1 (3.57%) Fortinet
4 1 (3.57%) iManage
4 1 (3.57%) Intapp
4 1 (3.57%) Juniper
4 1 (3.57%) Meraki
4 1 (3.57%) Oracle
4 1 (3.57%) Palo Alto
4 1 (3.57%) RedGate
4 1 (3.57%) SAP
4 1 (3.57%) ServiceNow
4 1 (3.57%) Solace