Period
to 18 September 2021

The table below looks at the prevalence of the term Clustering in permanent job vacancies. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 18 September 2021 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
18 Sep 2021
Same period 2020 Same period 2019
Rank 589 476 573
Rank change year-on-year -113 +97 -35
Permanent jobs citing Clustering 512 242 655
As % of all permanent jobs advertised in the UK 0.42% 0.48% 0.46%
As % of the Miscellaneous category 1.05% 1.33% 1.31%
Number of salaries quoted 410 203 511
10th Percentile £36,250 £34,800 £36,750
25th Percentile £41,250 £41,250 £42,500
Median annual salary (50th Percentile) £52,500 £50,000 £52,500
Median % change year-on-year +5.00% -4.76% -
75th Percentile £73,438 £60,000 £70,000
90th Percentile £91,250 £67,500 £83,750
UK excluding London median annual salary £45,000 £50,000 £47,500
% change year-on-year -10.00% +5.26% +5.56%

Clustering is in the Generic IT Skills category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for generic IT skills.

All Generic IT Skills
UK
Permanent vacancies with a requirement for generic IT skills 48,621 18,169 49,811
As % of all permanent IT jobs advertised in the UK 40.20% 35.92% 35.16%
Number of salaries quoted 29,205 14,717 38,007
10th Percentile £32,500 £32,750 £30,000
25th Percentile £42,500 £42,500 £37,500
Median annual salary (50th Percentile) £60,000 £57,500 £53,000
Median % change year-on-year +4.35% +8.49% +0.95%
75th Percentile £80,000 £77,500 £72,500
90th Percentile £97,500 £100,000 £90,000
UK excluding London median annual salary £50,000 £48,000 £45,000
% change year-on-year +4.17% +6.67% -

Clustering
Job Vacancy Trend

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

Job vacancy trend for Clustering in the UK

Clustering
Salary Trend

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

Salary trend for Clustering in the UK

Clustering
Salary Histogram

Salary distribution for jobs citing Clustering over the 6 months to 18 September 2021.

Salary histogram for Clustering in the UK

Clustering
Top 15 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Clustering within the UK over the 6 months to 18 September 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
England -91 454 £52,500 - 108
UK excluding London -129 279 £45,000 -10.00% 69
London -136 189 £65,000 +8.33% 43
Midlands -46 102 £40,000 +6.67% 18
West Midlands -23 96 £40,000 +6.67% 11
Work from Home -209 95 £70,000 +21.74% 23
South East -117 71 £57,500 +6.98% 12
South West -63 48 £50,000 - 12
North of England -157 28 £46,500 -7.00% 14
North West -98 22 £46,500 -7.00% 9
Wales -38 16 - - 1
East of England -94 9 £42,529 -21.97% 8
Yorkshire -113 8 £36,000 -40.00% 2
Scotland -84 7 £43,000 +1.18% 4
East Midlands -60 6 £42,469 -15.06% 7

For the 6 months to 18 September 2021, IT jobs citing 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 with a requirement for Clustering.

1 247 (48.24%) Microsoft
2 222 (43.36%) Azure
3 221 (43.16%) SQL Server
4 218 (42.58%) Windows
5 199 (38.87%) VMware
6 197 (38.48%) SQL
7 187 (36.52%) Active Directory
8 172 (33.59%) AWS
9 149 (29.10%) High Availability
10 148 (28.91%) Windows Server
11 131 (25.59%) PowerShell
12 129 (25.20%) Linux
12 129 (25.20%) Disaster Recovery
13 104 (20.31%) Finance
14 103 (20.12%) Microsoft 365
15 94 (18.36%) VMware Infrastructure
16 92 (17.97%) DevOps
17 90 (17.58%) Performance Tuning
18 86 (16.80%) IIS
19 79 (15.43%) Microsoft Clustering
20 76 (14.84%) Oracle
20 76 (14.84%) VMware ESXi
20 76 (14.84%) Infrastructure Engineering
21 74 (14.45%) Social Skills
21 74 (14.45%) T-SQL
22 73 (14.26%) Hyper-V
23 72 (14.06%) DNS
24 70 (13.67%) Migration
25 69 (13.48%) Java
26 68 (13.28%) Agile Software Development

Clustering
Co-occurring IT Skills 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 86 (16.80%) IIS
2 56 (10.94%) MS Exchange
3 23 (4.49%) Apache
4 18 (3.52%) SharePoint
5 17 (3.32%) nginx
6 13 (2.54%) Confluence
6 13 (2.54%) Tomcat
7 11 (2.15%) Exchange Server 2013
7 11 (2.15%) Skype for Business
8 7 (1.37%) WebSphere
9 6 (1.17%) Elasticsearch
9 6 (1.17%) Traefik
10 5 (0.98%) Exchange Server 2010
11 4 (0.78%) Apache Spark
11 4 (0.78%) JBoss
12 3 (0.59%) Blackberry Enterprise Server
12 3 (0.59%) SharePoint Server
13 2 (0.39%) Adobe Experience Manager
13 2 (0.39%) CMS
13 2 (0.39%) Mule
Applications
1 16 (3.13%) Microsoft Office
2 4 (0.78%) Microsoft Excel
3 1 (0.20%) Gephi
Business Applications
1 16 (3.13%) Remedy ITSM
2 9 (1.76%) Dynamics CRM
3 3 (0.59%) Maximo
3 3 (0.59%) Sentinel
4 2 (0.39%) Sage 200
5 1 (0.20%) Dynamics AX
5 1 (0.20%) Dynamics GP
Cloud Services
1 222 (43.36%) Azure
2 172 (33.59%) AWS
3 103 (20.12%) Microsoft 365
4 47 (9.18%) Azure Active Directory
5 43 (8.40%) PaaS
6 42 (8.20%) IaaS
7 33 (6.45%) Power Platform
8 32 (6.25%) GCP
9 25 (4.88%) SaaS
10 22 (4.30%) AWS CloudFormation
11 21 (4.10%) GitHub
12 16 (3.13%) Azure Stack
13 11 (2.15%) Amazon CloudWatch
13 11 (2.15%) Amazon EC2
14 9 (1.76%) Amazon ECS
14 9 (1.76%) Cloud Computing
15 8 (1.56%) Amazon ElastiCache
15 8 (1.56%) Amazon Kinesis
16 7 (1.37%) Azure App Service
16 7 (1.37%) Azure Logic Apps
Communications & Networking
1 72 (14.06%) DNS
2 65 (12.70%) Firewall
3 49 (9.57%) DHCP
4 47 (9.18%) LAN
4 47 (9.18%) SAN
5 45 (8.79%) TCP/IP
6 40 (7.81%) WAN
7 39 (7.62%) VLAN
8 35 (6.84%) SSL
9 26 (5.08%) HTTP
9 26 (5.08%) VPN
10 20 (3.91%) iSCSI
11 17 (3.32%) Internet
12 15 (2.93%) Broadband
13 13 (2.54%) Fibre Channel
13 13 (2.54%) Network Security
14 11 (2.15%) Skype
15 10 (1.95%) IPsec
15 10 (1.95%) Remote Desktop
15 10 (1.95%) Wi-Fi
Database & Business Intelligence
1 221 (43.16%) SQL Server
2 67 (13.09%) SQL Server Reporting Services
3 58 (11.33%) SQL Server Integration Services
4 55 (10.74%) MySQL
5 46 (8.98%) Data Warehouse
6 44 (8.59%) Relational Database
7 41 (8.01%) PostgreSQL
8 35 (6.84%) SQL Server Analysis Services
9 33 (6.45%) Power BI
10 29 (5.66%) RDBMS
10 29 (5.66%) SQL Server 2012
11 26 (5.08%) Oracle Database
12 21 (4.10%) Redis
13 20 (3.91%) MongoDB
14 18 (3.52%) Azure SQL Database
15 13 (2.54%) MariaDB
15 13 (2.54%) NoSQL
16 11 (2.15%) Crystal Reports
17 10 (1.95%) SQL Server 2016
17 10 (1.95%) Tableau
Development Applications
1 37 (7.23%) Jenkins
2 30 (5.86%) Git (software)
3 23 (4.49%) JIRA
4 20 (3.91%) Team Foundation Server
5 17 (3.32%) Octopus Deploy
6 6 (1.17%) git-flow
6 6 (1.17%) Gradle
7 1 (0.20%) GitLab
7 1 (0.20%) GoCD
7 1 (0.20%) JUnit
7 1 (0.20%) TeamCity
7 1 (0.20%) Visual Studio
General
1 104 (20.31%) Finance
2 74 (14.45%) Social Skills
3 54 (10.55%) Banking
4 27 (5.27%) Analytical Skills
5 22 (4.30%) Law
6 16 (3.13%) Inclusion and Diversity
6 16 (3.13%) Telecoms
7 11 (2.15%) Investment Banking
8 9 (1.76%) Documentation Skills
9 7 (1.37%) Marketing
10 6 (1.17%) Games
10 6 (1.17%) Public Sector
10 6 (1.17%) Retail
11 4 (0.78%) Legal
12 3 (0.59%) Back Office
13 2 (0.39%) Aerospace
13 2 (0.39%) Local Government
13 2 (0.39%) Military
13 2 (0.39%) Presentation Skills
13 2 (0.39%) Publishing
Job Titles
1 122 (23.83%) DBA
2 78 (15.23%) SQL DBA
3 66 (12.89%) Administrator
4 59 (11.52%) Infrastructure Engineer
5 54 (10.55%) IT Engineer
6 47 (9.18%) 3rd Line Engineer
7 46 (8.98%) Developer
8 44 (8.59%) SQL Server DBA
9 41 (8.01%) Cloud Engineer
10 39 (7.62%) Support Engineer
11 35 (6.84%) VMware Engineer
12 32 (6.25%) Architect
12 32 (6.25%) Project Engineer
13 27 (5.27%) Senior DBA
14 24 (4.69%) Windows Engineer
15 23 (4.49%) 3rd Line Infrastructure Engineer
15 23 (4.49%) 3rd Line Support
15 23 (4.49%) 3rd Line Support Engineer
15 23 (4.49%) Active Directory Engineer
15 23 (4.49%) Consultant
Libraries, Frameworks & Software Standards
1 63 (12.30%) Web Services
2 32 (6.25%) REST
3 27 (5.27%) Elastic Stack
4 23 (4.49%) Spring
5 17 (3.32%) LAMP
6 16 (3.13%) LDAP
6 16 (3.13%) LEMP Stack
7 15 (2.93%) React
8 14 (2.73%) Middleware
9 13 (2.54%) 802.1X
10 12 (2.34%) HTML
10 12 (2.34%) Kafka
11 11 (2.15%) .NET
11 11 (2.15%) AngularJS
11 11 (2.15%) Spring Boot
12 10 (1.95%) J2EE
12 10 (1.95%) LAPP Stack
12 10 (1.95%) Node.js
12 10 (1.95%) Struts
13 9 (1.76%) Velocity
Miscellaneous
1 56 (10.94%) Replication
2 40 (7.81%) Data Centre
3 30 (5.86%) PKI
4 22 (4.30%) Management Information System
4 22 (4.30%) Public Cloud
5 20 (3.91%) Enterprise Software
6 16 (3.13%) Enterprise Storage
6 16 (3.13%) Virtual Team
7 12 (2.34%) Legacy Systems
8 10 (1.95%) AS400
8 10 (1.95%) Hybrid Cloud
9 9 (1.76%) Online Banking
9 9 (1.76%) Self-Motivation
10 7 (1.37%) BYOD
11 6 (1.17%) Algorithms
11 6 (1.17%) Data Structures
12 5 (0.98%) Hedge funds
12 5 (0.98%) Mainframe
12 5 (0.98%) Social Media
12 5 (0.98%) Video Conferencing
Operating Systems
1 218 (42.58%) Windows
2 148 (28.91%) Windows Server
3 129 (25.20%) Linux
4 37 (7.23%) Red Hat Enterprise Linux
5 36 (7.03%) Unix
6 29 (5.66%) Windows Server 2019
7 28 (5.47%) Windows Server 2012
8 25 (4.88%) CentOS
9 22 (4.30%) Windows Server 2008
10 21 (4.10%) Windows 10
11 17 (3.32%) Windows Server 2016
12 10 (1.95%) Solaris
13 7 (1.37%) AIX
13 7 (1.37%) Ubuntu
14 5 (0.98%) zOS
15 4 (0.78%) Windows 7
16 3 (0.59%) Apple iOS
17 1 (0.20%) Mac OS
17 1 (0.20%) Oracle Linux
17 1 (0.20%) Windows Server 2003
Processes & Methodologies
1 149 (29.10%) High Availability
2 129 (25.20%) Disaster Recovery
3 92 (17.97%) DevOps
4 90 (17.58%) Performance Tuning
5 76 (14.84%) Infrastructure Engineering
6 70 (13.67%) Migration
7 68 (13.28%) Agile Software Development
8 67 (13.09%) Problem-Solving
9 61 (11.91%) Business Intelligence
9 61 (11.91%) Change Management
10 51 (9.96%) Load Balancing
11 46 (8.98%) ETL
12 44 (8.59%) Microservices
13 36 (7.03%) Continuous Integration
14 35 (6.84%) ITIL
15 33 (6.45%) Software Engineering
16 32 (6.25%) Data Security
17 31 (6.05%) Database Mirroring
18 29 (5.66%) Capacity Management
19 28 (5.47%) Site Reliability Engineering
Programming Languages
1 197 (38.48%) SQL
2 131 (25.59%) PowerShell
3 74 (14.45%) T-SQL
4 69 (13.48%) Java
5 65 (12.70%) Python
6 33 (6.45%) Bash Shell
7 27 (5.27%) Shell Script
8 21 (4.10%) JavaScript
9 14 (2.73%) Go
9 14 (2.73%) Scala
10 13 (2.54%) Perl
11 12 (2.34%) Kotlin
12 11 (2.15%) C
12 11 (2.15%) C#
13 6 (1.17%) VBScript
14 3 (0.59%) C++
14 3 (0.59%) Java 8
14 3 (0.59%) PL/SQL
15 2 (0.39%) HLASM
15 2 (0.39%) LookML
Qualifications
1 44 (8.59%) Degree
2 33 (6.45%) Security Cleared
3 26 (5.08%) SC Cleared
4 24 (4.69%) Microsoft Certification
5 17 (3.32%) MCSE
6 15 (2.93%) MCSA
7 10 (1.95%) MCITP
8 9 (1.76%) MCTS
9 8 (1.56%) MCP
10 7 (1.37%) DV Cleared
11 6 (1.17%) CISSP
12 5 (0.98%) CCNA
12 5 (0.98%) CEH
12 5 (0.98%) CISA
12 5 (0.98%) Cisco Certification
12 5 (0.98%) CISMP
12 5 (0.98%) CompTIA Security+
12 5 (0.98%) ITIL Certification
12 5 (0.98%) SSCP
13 3 (0.59%) AWS Certification
Quality Assurance & Compliance
1 51 (9.96%) SLA
2 25 (4.88%) GDPR
3 13 (2.54%) QA
4 9 (1.76%) ISO/IEC 27001
4 9 (1.76%) PMO
5 8 (1.56%) Data Quality
6 5 (0.98%) Accessibility
6 5 (0.98%) NIST
7 2 (0.39%) HL7
7 2 (0.39%) Sarbanes-Oxley
8 1 (0.20%) ISO 15022
8 1 (0.20%) ISO 20022
8 1 (0.20%) PCI DSS
System Software
1 187 (36.52%) Active Directory
2 94 (18.36%) VMware Infrastructure
3 76 (14.84%) VMware ESXi
4 73 (14.26%) Hyper-V
5 33 (6.45%) vSphere
6 30 (5.86%) Docker
7 12 (2.34%) NFS
8 10 (1.95%) iptables
8 10 (1.95%) Terminal Services
9 7 (1.37%) Oracle RAC
9 7 (1.37%) Virtual Machines
10 5 (0.98%) Veritas Cluster Server
10 5 (0.98%) XenApp
11 4 (0.78%) ProxySG
11 4 (0.78%) XenDesktop
12 3 (0.59%) Citrix Hypervisor
12 3 (0.59%) DFS Replication
12 3 (0.59%) KVM
12 3 (0.59%) vCloud
12 3 (0.59%) Virtual Desktop
Systems Management
1 79 (15.43%) Microsoft Clustering
2 53 (10.35%) Ansible
3 50 (9.77%) SCCM
4 47 (9.18%) Kubernetes
5 42 (8.20%) Failover Clustering
6 29 (5.66%) Microsoft Intune
7 28 (5.47%) vCenter Server
8 26 (5.08%) Puppet
9 24 (4.69%) Terraform
10 21 (4.10%) Active Directory Federation Services
11 18 (3.52%) Grafana
12 17 (3.32%) Opscode Chef
13 15 (2.93%) WSUS
14 13 (2.54%) SCOM
15 12 (2.34%) Prometheus
16 11 (2.15%) Single Sign-On
17 8 (1.56%) Data Guard
18 7 (1.37%) Red Hat Satellite
19 6 (1.17%) FortiGate
19 6 (1.17%) Rancher
Vendors
1 247 (48.24%) Microsoft
2 199 (38.87%) VMware
3 76 (14.84%) Oracle
4 58 (11.33%) Cisco
5 49 (9.57%) Red Hat
6 38 (7.42%) Google
7 22 (4.30%) 3PAR
8 21 (4.10%) Citrix
9 19 (3.71%) Apple
10 17 (3.32%) Remedy
11 15 (2.93%) Scality
12 14 (2.73%) IBM
13 13 (2.54%) NetApp
13 13 (2.54%) Veeam
14 12 (2.34%) Brocade
14 12 (2.34%) EMC
14 12 (2.34%) HP
15 11 (2.15%) F5
15 11 (2.15%) Veritas
16 10 (1.95%) Atlassian