Period
to 16 October 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for High Availability skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited High Availability over the 6 months to 16 October 2021 with a comparison to the same period in the previous 2 years.

High Availability
Central London > City of London
6 months to
16 Oct 2021
Same period 2020 Same period 2019
Rank 203 160 205
Rank change year-on-year -43 +45 +20
Permanent jobs citing High Availability 49 38 128
As % of all permanent jobs advertised in the City of London 0.83% 1.06% 1.27%
As % of the Processes & Methodologies category 0.88% 1.13% 1.35%
Number of salaries quoted 35 31 93
10th Percentile " £50,000 £47,500
25th Percentile £60,000 £59,375 £57,500
Median annual salary (50th Percentile) £80,000 £72,500 £67,500
Median % change year-on-year +10.34% +7.41% +3.85%
75th Percentile £95,000 £90,625 £87,500
90th Percentile £105,000 £91,250 £113,750
Central London median annual salary £77,500 £72,500 £65,000
% change year-on-year +6.90% +11.54% -

High Availability is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 5,579 3,375 9,456
As % of all permanent IT jobs advertised in the City of London 94.54% 94.22% 93.97%
Number of salaries quoted 4,971 2,967 8,336
10th Percentile £43,000 £45,000 £38,250
25th Percentile £55,000 £53,750 £51,250
Median annual salary (50th Percentile) £72,500 £70,000 £67,500
Median % change year-on-year +3.57% +3.70% +3.85%
75th Percentile £91,250 £86,250 £82,500
90th Percentile £106,250 £101,250 £97,500
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +4.00%

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

3-month moving average salary quoted in jobs citing High Availability in the City of London.

Salary trend for High Availability in the City of London

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 16 October 2021.

Salary histogram for High Availability in the City of London

For the 6 months to 16 October 2021, IT jobs citing High Availability also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for High Availability.

1 25 (51.02%) Finance
2 24 (48.98%) SQL Server
3 23 (46.94%) Oracle
4 22 (44.90%) Agile Software Development
5 21 (42.86%) Software Engineering
5 21 (42.86%) JavaScript
5 21 (42.86%) Front Office
5 21 (42.86%) React
6 19 (38.78%) AngularJS
7 18 (36.73%) Deployment Automation
7 18 (36.73%) C#
7 18 (36.73%) TDD
8 17 (34.69%) Multithreading
8 17 (34.69%) ES6
9 14 (28.57%) TypeScript
9 14 (28.57%) Linux
10 12 (24.49%) Java
11 11 (22.45%) .NET
12 10 (20.41%) Python
12 10 (20.41%) Azure
12 10 (20.41%) Performance Tuning
12 10 (20.41%) Docker
13 9 (18.37%) DevOps
13 9 (18.37%) Multithreaded Programming
13 9 (18.37%) AWS
13 9 (18.37%) SQL
14 8 (16.33%) Migration
14 8 (16.33%) Banking
15 7 (14.29%) SQL Server Integration Services
15 7 (14.29%) KDB

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

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

Application Platforms
1 2 (4.08%) MS Exchange
2 1 (2.04%) Apache
2 1 (2.04%) Red Hat Fuse
2 1 (2.04%) SharePoint
2 1 (2.04%) Traefik
Applications
1 1 (2.04%) Microsoft Excel
Cloud Services
1 10 (20.41%) Azure
2 9 (18.37%) AWS
3 6 (12.24%) Amazon ECS
4 4 (8.16%) PaaS
4 4 (8.16%) Power Platform
5 3 (6.12%) AWS CloudFormation
5 3 (6.12%) SaaS
5 3 (6.12%) Serverless
6 2 (4.08%) Amazon ElastiCache
6 2 (4.08%) Amazon Kinesis
6 2 (4.08%) AWS CodeBuild
6 2 (4.08%) AWS CodePipeline
6 2 (4.08%) AWS Fargate
6 2 (4.08%) AWS Lambda
6 2 (4.08%) IaaS
6 2 (4.08%) Microsoft 365
7 1 (2.04%) Amazon EKS
7 1 (2.04%) Datadog
7 1 (2.04%) GitHub
7 1 (2.04%) Route 53
Communications & Networking
1 3 (6.12%) 5G
1 3 (6.12%) Broadband
1 3 (6.12%) DWDM
1 3 (6.12%) SDH
2 2 (4.08%) Cisco ASA
2 2 (4.08%) Firewall
2 2 (4.08%) LAN
2 2 (4.08%) SAN
2 2 (4.08%) WAN
3 1 (2.04%) FTP
3 1 (2.04%) PuTTY
3 1 (2.04%) WinSCP
Database & Business Intelligence
1 24 (48.98%) SQL Server
2 7 (14.29%) KDB
2 7 (14.29%) SQL Server Integration Services
3 6 (12.24%) SQL Server Reporting Services
4 5 (10.20%) PostgreSQL
5 4 (8.16%) Power BI
5 4 (8.16%) RDBMS
5 4 (8.16%) Relational Database
6 3 (6.12%) Azure SQL Database
6 3 (6.12%) Oracle Database
6 3 (6.12%) SQL Server Analysis Services
7 2 (4.08%) InfluxDB
7 2 (4.08%) MongoDB
7 2 (4.08%) SQL Server 2012
8 1 (2.04%) Amazon DynamoDB
8 1 (2.04%) Amazon RDS
8 1 (2.04%) Apache Cassandra
8 1 (2.04%) Data Warehouse
8 1 (2.04%) DTS
8 1 (2.04%) Redis
Development Applications
1 5 (10.20%) Jenkins
2 2 (4.08%) Git (software)
2 2 (4.08%) Octopus Deploy
3 1 (2.04%) Team Foundation Server
General
1 25 (51.02%) Finance
2 21 (42.86%) Front Office
3 8 (16.33%) Banking
4 6 (12.24%) Investment Banking
5 4 (8.16%) Social Skills
6 3 (6.12%) Telecoms
7 1 (2.04%) Public Sector
Job Titles
1 25 (51.02%) Developer
2 11 (22.45%) Senior Developer
3 9 (18.37%) Software Engineer
4 7 (14.29%) Software Developer
5 6 (12.24%) KDB Developer
6 5 (10.20%) .NET Software Engineer
6 5 (10.20%) DBA
6 5 (10.20%) Java Developer
6 5 (10.20%) SQL DBA
7 4 (8.16%) Consultant
7 4 (8.16%) Full Stack Developer
7 4 (8.16%) Senior Full Stack Developer
7 4 (8.16%) SQL Server DBA
8 3 (6.12%) AWS Developer
8 3 (6.12%) DevOps Engineer
8 3 (6.12%) Lead DevOps
8 3 (6.12%) Network Engineer
8 3 (6.12%) Senior Network Engineer
8 3 (6.12%) Senior Software Developer
8 3 (6.12%) Support Consultant
Libraries, Frameworks & Software Standards
1 21 (42.86%) React
2 19 (38.78%) AngularJS
3 11 (22.45%) .NET
4 5 (10.20%) .NET Core
4 5 (10.20%) Node.js
5 4 (8.16%) HTML
5 4 (8.16%) HTML5
5 4 (8.16%) REST
5 4 (8.16%) Spring
6 3 (6.12%) Redux
6 3 (6.12%) Spring Boot
7 2 (4.08%) Kafka
7 2 (4.08%) Lambda Expressions
8 1 (2.04%) Ajax
8 1 (2.04%) Apache Camel
8 1 (2.04%) GWT
8 1 (2.04%) Java Concurrency
8 1 (2.04%) jQuery
8 1 (2.04%) JSF
8 1 (2.04%) OSGi
Miscellaneous
1 7 (14.29%) Clustering
1 7 (14.29%) Fixed Income
2 5 (10.20%) Enterprise Software
2 5 (10.20%) Greenfield Project
3 4 (8.16%) Replication
4 3 (6.12%) Data Structures
4 3 (6.12%) Legacy Systems
4 3 (6.12%) Over-the-Top Content
4 3 (6.12%) Social Media
5 2 (4.08%) Data Centre
5 2 (4.08%) Management Information System
5 2 (4.08%) Video Conferencing
6 1 (2.04%) Cloud Native
6 1 (2.04%) Public Cloud
6 1 (2.04%) Self-Motivation
6 1 (2.04%) Wiki
Operating Systems
1 14 (28.57%) Linux
2 6 (12.24%) Unix
2 6 (12.24%) Windows
3 3 (6.12%) Windows Server
4 1 (2.04%) Windows Server 2012
Processes & Methodologies
1 22 (44.90%) Agile Software Development
2 21 (42.86%) Software Engineering
3 18 (36.73%) Deployment Automation
3 18 (36.73%) TDD
4 17 (34.69%) Multithreading
5 10 (20.41%) Performance Tuning
6 9 (18.37%) DevOps
6 9 (18.37%) Multithreaded Programming
7 8 (16.33%) Migration
8 6 (12.24%) Artificial Intelligence
8 6 (12.24%) Configuration Management
8 6 (12.24%) Continuous Integration
8 6 (12.24%) ETL
8 6 (12.24%) Low Latency
8 6 (12.24%) Machine Learning
8 6 (12.24%) Microservices
9 5 (10.20%) Analytics
9 5 (10.20%) OO
9 5 (10.20%) Open Source
9 5 (10.20%) Scalability Testing
Programming Languages
1 21 (42.86%) JavaScript
2 18 (36.73%) C#
3 17 (34.69%) ES6
4 14 (28.57%) TypeScript
5 12 (24.49%) Java
6 10 (20.41%) Python
7 9 (18.37%) SQL
8 6 (12.24%) Perl
8 6 (12.24%) Shell Script
9 5 (10.20%) PowerShell
10 4 (8.16%) T-SQL
11 1 (2.04%) C++
11 1 (2.04%) Go
11 1 (2.04%) Java 8
11 1 (2.04%) PL/SQL
11 1 (2.04%) Ruby
11 1 (2.04%) VBA
Qualifications
1 1 (2.04%) AWS Certification
1 1 (2.04%) SC Cleared
1 1 (2.04%) Security Cleared
Quality Assurance & Compliance
1 3 (6.12%) Data Quality
2 1 (2.04%) PCI DSS
2 1 (2.04%) SLA
System Software
1 10 (20.41%) Docker
2 4 (8.16%) VMware Infrastructure
3 2 (4.08%) Active Directory
Systems Management
1 7 (14.29%) Ansible
1 7 (14.29%) Terraform
2 3 (6.12%) Grafana
3 2 (4.08%) Kubernetes
4 1 (2.04%) Opscode Chef
4 1 (2.04%) Prometheus
4 1 (2.04%) Puppet
Vendors
1 23 (46.94%) Oracle
2 7 (14.29%) Microsoft
3 4 (8.16%) VMware
4 2 (4.08%) BeyondTrust
4 2 (4.08%) Cisco
4 2 (4.08%) CommVault
4 2 (4.08%) IronPort
4 2 (4.08%) NetApp
4 2 (4.08%) Rapid7
4 2 (4.08%) SonicWALL
5 1 (2.04%) Google
5 1 (2.04%) Red Hat
5 1 (2.04%) RedGate
5 1 (2.04%) Splunk