Period
to 11 April 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Failover Clustering skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Failover Clustering over the 6 months to 11 April 2021 with a comparison to the same period in the previous 2 years.

Failover Clustering (High-Availability, HA)
England > London
6 months to
11 Apr 2021
Same period 2020 Same period 2019
Rank 513 670 695
Rank change year-on-year +157 +25 +86
Permanent jobs citing Failover Clustering 41 12 88
As % of all permanent jobs advertised in London 0.13% 0.026% 0.14%
As % of the Systems Management category 0.68% 0.16% 1.03%
Number of salaries quoted 33 11 73
10th Percentile £46,500 £45,000 £45,000
25th Percentile £61,250 £48,000 £46,250
Median annual salary (50th Percentile) £70,000 £60,000 £55,000
Median % change year-on-year +16.67% +9.09% -
75th Percentile £81,000 £70,000 £65,688
90th Percentile £93,250 £75,000 £73,000
England median annual salary £55,000 £50,000 £54,500
% change year-on-year +10.00% -8.26% +14.74%

Failover Clustering is in the Systems Management category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for systems management skills.

All Systems Management Skills
London
Permanent vacancies with a requirement for systems management skills 6,055 7,666 8,544
As % of all permanent IT jobs advertised in London 19.66% 16.36% 13.98%
Number of salaries quoted 4,885 6,175 6,970
10th Percentile £47,500 £41,250 £38,750
25th Percentile £60,000 £55,000 £51,250
Median annual salary (50th Percentile) £75,000 £70,000 £70,000
Median % change year-on-year +7.14% - +7.69%
75th Percentile £90,000 £87,500 £85,000
90th Percentile £106,250 £103,750 £97,500
England median annual salary £65,000 £60,000 £60,000
% change year-on-year +8.33% - +9.09%

Failover Clustering
Job Vacancy Trend in London

Job postings citing Failover Clustering as a proportion of all IT jobs advertised in London.

Job vacancy trend for Failover Clustering in London

Failover Clustering
Salary Trend in London

3-month moving average salary quoted in jobs citing Failover Clustering in London.

Salary trend for Failover Clustering in London

Failover Clustering
Salary Histogram in London

Salary distribution for jobs citing Failover Clustering in London over the 6 months to 11 April 2021.

Salary histogram for Failover Clustering in London

Failover Clustering
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Failover Clustering within the London region over the 6 months to 11 April 2021. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +95 14 £55,000 -15.38%
West London - 3 £62,500 - 2
Failover Clustering
England

For the 6 months to 11 April 2021, IT jobs citing Failover Clustering 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 London region with a requirement for Failover Clustering.

1 36 (87.80%) Azure
2 35 (85.37%) Active Directory
3 26 (63.41%) Windows
4 25 (60.98%) AWS
5 24 (58.54%) Windows Server
5 24 (58.54%) Microsoft
5 24 (58.54%) Clustering
6 23 (56.10%) SQL
7 21 (51.22%) Migration
8 20 (48.78%) Hyper-V
9 19 (46.34%) PowerShell
10 18 (43.90%) Disaster Recovery
10 18 (43.90%) High Availability
10 18 (43.90%) Azure Active Directory
11 17 (41.46%) Azure SQL Database
11 17 (41.46%) Firewall
12 15 (36.59%) Linux
12 15 (36.59%) SCCM
13 14 (34.15%) VMware
13 14 (34.15%) Python
14 13 (31.71%) DevOps
15 12 (29.27%) DHCP
16 11 (26.83%) DNS
16 11 (26.83%) Web Services
16 11 (26.83%) ITIL
16 11 (26.83%) Jenkins
17 10 (24.39%) SaaS
17 10 (24.39%) Infrastructure as Code
17 10 (24.39%) Business Intelligence
17 10 (24.39%) Load Balancing

Failover Clustering
Co-occurring IT Skills in 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 9 (21.95%) IIS
2 5 (12.20%) SharePoint
3 4 (9.76%) MS Exchange
4 3 (7.32%) Apache
4 3 (7.32%) Ethereum
4 3 (7.32%) Skype for Business
Applications
1 4 (9.76%) Microsoft Office
Business Applications
1 3 (7.32%) Quorum
Cloud Services
1 36 (87.80%) Azure
2 25 (60.98%) AWS
3 18 (43.90%) Azure Active Directory
4 10 (24.39%) SaaS
5 9 (21.95%) Power Platform
6 8 (19.51%) Amazon EC2
6 8 (19.51%) Amazon S3
6 8 (19.51%) AWS CloudFormation
6 8 (19.51%) AWS Lambda
6 8 (19.51%) Azure Data Factory
6 8 (19.51%) Azure Functions
6 8 (19.51%) Serverless
7 7 (17.07%) Microsoft 365
8 5 (12.20%) IaaS
9 2 (4.88%) Amazon ECS
9 2 (4.88%) AWS Fargate
9 2 (4.88%) PaaS
10 1 (2.44%) GCP
10 1 (2.44%) Logic Apps
Communications & Networking
1 17 (41.46%) Firewall
2 12 (29.27%) DHCP
3 11 (26.83%) DNS
4 7 (17.07%) NAS
5 5 (12.20%) SAN
6 4 (9.76%) iSCSI
6 4 (9.76%) Network Security
6 4 (9.76%) VoIP
6 4 (9.76%) VPN
6 4 (9.76%) Wireless
7 3 (7.32%) FTP
7 3 (7.32%) Skype
7 3 (7.32%) SSL
Database & Business Intelligence
1 17 (41.46%) Azure SQL Database
2 9 (21.95%) Power BI
3 8 (19.51%) Amazon RDS
3 8 (19.51%) Amazon Redshift
3 8 (19.51%) PostgreSQL
4 7 (17.07%) SQL Server
5 6 (14.63%) Data Warehouse
6 2 (4.88%) SQL Server Integration Services
7 1 (2.44%) Apache Hive
7 1 (2.44%) Big Data
7 1 (2.44%) Data Lake
7 1 (2.44%) NoSQL
7 1 (2.44%) SQL Server 2008
7 1 (2.44%) SQL Server Analysis Services
7 1 (2.44%) SQL Server Reporting Services
Development Applications
1 11 (26.83%) Jenkins
2 8 (19.51%) TeamCity
3 5 (12.20%) Team Foundation Server
4 4 (9.76%) JIRA
5 1 (2.44%) Git (software)
5 1 (2.44%) GitLab
General
1 2 (4.88%) Law
2 1 (2.44%) Finance
2 1 (2.44%) Retail
Job Titles
1 6 (14.63%) DBA
1 6 (14.63%) DevOps Engineer
1 6 (14.63%) Team Leader
2 5 (12.20%) Administrator
2 5 (12.20%) Infrastructure Engineer
2 5 (12.20%) Linux Engineer
2 5 (12.20%) Windows Engineer
3 4 (9.76%) Cisco Engineer
3 4 (9.76%) VMware Engineer
4 3 (7.32%) AWS DevOps
4 3 (7.32%) Azure Engineer
4 3 (7.32%) Cisco Support
4 3 (7.32%) Cisco Support Engineer
4 3 (7.32%) Cloud Engineer
4 3 (7.32%) Linux Support Engineer
4 3 (7.32%) Senior Support Engineer
4 3 (7.32%) Senior VMware Engineer
4 3 (7.32%) Senior Windows Engineer
4 3 (7.32%) VMware Support Engineer
4 3 (7.32%) Windows Support Engineer
Libraries, Frameworks & Software Standards
1 11 (26.83%) Web Services
2 4 (9.76%) POSIX
3 3 (7.32%) LDAP
4 1 (2.44%) Kafka
Miscellaneous
1 24 (58.54%) Clustering
2 7 (17.07%) Linux Command Line
3 5 (12.20%) Data Centre
3 5 (12.20%) Replication
4 3 (7.32%) Device Driver
4 3 (7.32%) Greenfield Project
5 2 (4.88%) Management Information System
6 1 (2.44%) Analytical Skills
6 1 (2.44%) Cloud Native
6 1 (2.44%) Enterprise Storage
6 1 (2.44%) PKI
Operating Systems
1 26 (63.41%) Windows
2 24 (58.54%) Windows Server
3 15 (36.59%) Linux
4 8 (19.51%) Mac OS
5 4 (9.76%) Ubuntu
5 4 (9.76%) Windows 10
5 4 (9.76%) Windows 7
5 4 (9.76%) Windows Server 2008
5 4 (9.76%) Windows Server 2016
6 3 (7.32%) Red Hat Enterprise Linux
6 3 (7.32%) Unix
6 3 (7.32%) VMS
Processes & Methodologies
1 21 (51.22%) Migration
2 18 (43.90%) Disaster Recovery
2 18 (43.90%) High Availability
3 13 (31.71%) DevOps
4 11 (26.83%) ITIL
5 10 (24.39%) Business Intelligence
5 10 (24.39%) Infrastructure as Code
5 10 (24.39%) Load Balancing
6 9 (21.95%) Configuration Management
6 9 (21.95%) Information Security
7 8 (19.51%) Continuous Delivery
7 8 (19.51%) Continuous Integration
7 8 (19.51%) Deployment Automation
8 7 (17.07%) Cybersecurity
9 6 (14.63%) Database Security
9 6 (14.63%) Infrastructure Engineering
10 5 (12.20%) Agile Software Development
10 5 (12.20%) Database Optimisation
11 4 (9.76%) Problem-Solving
12 3 (7.32%) Fintech
Programming Languages
1 23 (56.10%) SQL
2 19 (46.34%) PowerShell
3 14 (34.15%) Python
4 9 (21.95%) C#
5 8 (19.51%) Ruby
6 7 (17.07%) Bash Shell
7 3 (7.32%) AWK
7 3 (7.32%) C
7 3 (7.32%) Perl
7 3 (7.32%) sed
8 1 (2.44%) T-SQL
Qualifications
1 7 (17.07%) ITIL Certification
2 4 (9.76%) CCNA
2 4 (9.76%) Cisco Certification
2 4 (9.76%) Microsoft Certification
3 3 (7.32%) CCNP
3 3 (7.32%) RHCE
3 3 (7.32%) RHCSA
Quality Assurance & Compliance
1 8 (19.51%) QA
2 4 (9.76%) SLA
3 3 (7.32%) Cyber Essentials
3 3 (7.32%) Cyber Essentials PLUS
3 3 (7.32%) ISO/IEC 27001
System Software
1 35 (85.37%) Active Directory
2 20 (48.78%) Hyper-V
3 6 (14.63%) VMware Infrastructure
4 3 (7.32%) Docker
4 3 (7.32%) Firmware
4 3 (7.32%) KVM
4 3 (7.32%) OCFS2
4 3 (7.32%) Oracle RAC
4 3 (7.32%) Postfix
4 3 (7.32%) qmail
4 3 (7.32%) Samba
4 3 (7.32%) Sendmail
4 3 (7.32%) Veritas Cluster Server
4 3 (7.32%) Veritas Volume Manager
4 3 (7.32%) Virtual Machines
4 3 (7.32%) Xen
Systems Management
1 15 (36.59%) SCCM
2 8 (19.51%) Opscode Chef
2 8 (19.51%) Puppet
3 4 (9.76%) Microsoft Data Protection Manager
3 4 (9.76%) Microsoft Intune
3 4 (9.76%) SCDPM
4 3 (7.32%) Jamf Pro
4 3 (7.32%) Microsoft Clustering
4 3 (7.32%) SELinux
5 2 (4.88%) Kubernetes
5 2 (4.88%) Terraform
6 1 (2.44%) SCSM
Vendors
1 24 (58.54%) Microsoft
2 14 (34.15%) VMware
3 8 (19.51%) Cisco
4 7 (17.07%) HP
5 6 (14.63%) Red Hat
6 4 (9.76%) Aruba
6 4 (9.76%) Barracuda Networks
6 4 (9.76%) Brocade
6 4 (9.76%) Meraki
6 4 (9.76%) SonicWALL
6 4 (9.76%) Synology
6 4 (9.76%) Ubiquiti
7 3 (7.32%) Apple
7 3 (7.32%) Oracle
8 2 (4.88%) 3PAR