Period
to 11 April 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 11 April 2021 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
11 Apr 2021
Same period 2020 Same period 2019
Rank 517 560 501
Rank change year-on-year +43 -59 -14
Permanent jobs citing Clustering 360 467 830
As % of all permanent jobs advertised in the UK 0.43% 0.41% 0.56%
As % of the Miscellaneous category 1.10% 1.07% 1.41%
Number of salaries quoted 309 348 693
10th Percentile £32,750 £34,925 £36,250
25th Percentile £40,000 £37,500 £41,750
Median annual salary (50th Percentile) £50,000 £50,000 £51,500
Median % change year-on-year - -2.91% +3.00%
75th Percentile £70,000 £61,250 £67,500
90th Percentile £90,000 £70,375 £77,500
UK excluding London median annual salary £45,000 £45,000 £46,500
% change year-on-year - -3.23% +3.33%

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 32,717 43,836 58,679
As % of all permanent IT jobs advertised in the UK 39.50% 38.59% 39.42%
Number of salaries quoted 23,312 34,125 44,860
10th Percentile £32,500 £30,750 £29,250
25th Percentile £41,250 £39,750 £37,500
Median annual salary (50th Percentile) £55,000 £55,000 £52,500
Median % change year-on-year - +4.76% +5.00%
75th Percentile £75,000 £75,000 £71,750
90th Percentile £95,000 £93,750 £87,500
UK excluding London median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% -

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 11 April 2021.

Salary histogram for Clustering in the UK

Clustering
Top 16 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 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
England +57 334 £50,500 -3.81% 68
UK excluding London +24 210 £45,000 - 48
London +129 131 £67,500 +17.39% 23
Work from Home -86 70 £60,250 -3.60% 14
North of England +21 66 £46,750 -1.04% 7
Midlands +70 64 £36,500 -18.89% 11
West Midlands +65 54 £36,000 -20.00% 6
North West +34 48 £47,500 -4.01% 7
South East +2 40 £50,000 +8.40% 18
South West -1 17 £42,500 -20.93% 8
East of England +33 15 £45,000 -10.00% 1
Yorkshire +14 13 £45,000 -16.28%
East Midlands +25 10 £43,250 +31.06% 5
North East +4 5 £47,500 +26.67%
Wales +15 4 £50,000 +33.33% 1
Scotland +13 4 £45,000 - 2

For the 6 months to 11 April 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.

1 216 (60.00%) Windows
2 171 (47.50%) Active Directory
3 170 (47.22%) Microsoft
4 169 (46.94%) VMware
5 168 (46.67%) Azure
6 166 (46.11%) SQL Server
7 152 (42.22%) Windows Server
8 120 (33.33%) SQL
9 117 (32.50%) AWS
10 100 (27.78%) PowerShell
10 100 (27.78%) Linux
11 95 (26.39%) VMware Infrastructure
12 90 (25.00%) Oracle
13 89 (24.72%) Hyper-V
13 89 (24.72%) Performance Tuning
14 87 (24.17%) Microsoft 365
15 84 (23.33%) Microsoft Clustering
16 82 (22.78%) Replication
17 73 (20.28%) Cisco
17 73 (20.28%) High Availability
18 65 (18.06%) Firewall
19 63 (17.50%) DNS
19 63 (17.50%) VMware ESXi
20 59 (16.39%) Disaster Recovery
21 58 (16.11%) Infrastructure Engineering
22 57 (15.83%) PostgreSQL
23 56 (15.56%) IIS
24 54 (15.00%) Failover Clustering
25 51 (14.17%) MySQL
25 51 (14.17%) MS Exchange

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 56 (15.56%) IIS
2 51 (14.17%) MS Exchange
3 25 (6.94%) SharePoint
4 20 (5.56%) Skype for Business
5 10 (2.78%) Exchange Server 2010
6 9 (2.50%) Exchange Server 2013
7 8 (2.22%) Apache
8 7 (1.94%) JBoss
9 6 (1.67%) Confluence
9 6 (1.67%) OpenEdge
10 4 (1.11%) Elasticsearch
11 3 (0.83%) Ethereum
12 2 (0.56%) Red Hat Fuse
12 2 (0.56%) SharePoint 2010
13 1 (0.28%) Adobe Experience Manager
13 1 (0.28%) MS Project Server
13 1 (0.28%) nginx
13 1 (0.28%) Oracle Coherence
13 1 (0.28%) SAS
13 1 (0.28%) WebSphere
Applications
1 15 (4.17%) Microsoft Office
2 1 (0.28%) Gephi
2 1 (0.28%) Microsoft Excel
2 1 (0.28%) Microsoft PowerPoint
Business Applications
1 3 (0.83%) Quorum
1 3 (0.83%) Remedy ITSM
2 2 (0.56%) Oracle EBS R12
2 2 (0.56%) Sage 200
3 1 (0.28%) Dynamics AX
3 1 (0.28%) Dynamics CRM
Cloud Services
1 168 (46.67%) Azure
2 117 (32.50%) AWS
3 87 (24.17%) Microsoft 365
4 36 (10.00%) Azure Active Directory
5 27 (7.50%) GCP
6 23 (6.39%) IaaS
6 23 (6.39%) PaaS
7 19 (5.28%) Power Platform
8 17 (4.72%) SaaS
9 11 (3.06%) Trello
10 7 (1.94%) Mimecast
11 6 (1.67%) Google Data Studio
12 4 (1.11%) Amazon ECS
12 4 (1.11%) Amazon ElastiCache
12 4 (1.11%) Amazon Kinesis
12 4 (1.11%) AWS CloudFormation
13 3 (0.83%) Amazon S3
13 3 (0.83%) Cloud Computing
14 1 (0.28%) Amazon EC2
14 1 (0.28%) Serverless
Communications & Networking
1 65 (18.06%) Firewall
2 63 (17.50%) DNS
3 47 (13.06%) DHCP
4 38 (10.56%) TCP/IP
5 36 (10.00%) SAN
6 31 (8.61%) WAN
7 26 (7.22%) LAN
8 24 (6.67%) Skype
9 23 (6.39%) VLAN
10 21 (5.83%) iSCSI
11 19 (5.28%) Remote Desktop
12 17 (4.72%) VPN
13 16 (4.44%) MPLS
14 14 (3.89%) PBX
14 14 (3.89%) Unified Communications
15 13 (3.61%) VoIP
15 13 (3.61%) WebEx
16 12 (3.33%) Fibre Channel
17 11 (3.06%) Internet
18 10 (2.78%) Wireless
Database & Business Intelligence
1 166 (46.11%) SQL Server
2 57 (15.83%) PostgreSQL
3 51 (14.17%) MySQL
4 34 (9.44%) SQL Server Integration Services
5 30 (8.33%) SQL Server Reporting Services
6 27 (7.50%) Relational Database
7 25 (6.94%) SQL Server 2016
8 23 (6.39%) RDBMS
9 22 (6.11%) Oracle Database
10 21 (5.83%) SQL Server 2014
11 20 (5.56%) MariaDB
12 18 (5.00%) Power BI
12 18 (5.00%) SQL Server 2019
12 18 (5.00%) SQL Server Analysis Services
13 16 (4.44%) Azure SQL Database
13 16 (4.44%) Oracle Database 12c
13 16 (4.44%) Oracle Exadata
14 14 (3.89%) Data Warehouse
15 13 (3.61%) MongoDB
16 12 (3.33%) SQL Server 2012
Development Applications
1 28 (7.78%) JIRA
2 27 (7.50%) Jenkins
3 5 (1.39%) Git (software)
3 5 (1.39%) Octopus Deploy
4 3 (0.83%) Gradle
4 3 (0.83%) Visual Studio
5 2 (0.56%) JUnit
6 1 (0.28%) GitLab
6 1 (0.28%) Maven
6 1 (0.28%) Sonatype Nexus
General
1 29 (8.06%) Finance
2 18 (5.00%) Law
3 16 (4.44%) Banking
3 16 (4.44%) Public Sector
4 7 (1.94%) Investment Banking
5 4 (1.11%) Telecoms
6 3 (0.83%) Legal
6 3 (0.83%) Military
7 2 (0.56%) Marketing
8 1 (0.28%) Aerospace
8 1 (0.28%) Automotive
8 1 (0.28%) Front Office
8 1 (0.28%) Police
8 1 (0.28%) Retail
Job Titles
1 93 (25.83%) DBA
2 55 (15.28%) SQL DBA
3 45 (12.50%) Infrastructure Engineer
4 36 (10.00%) IT Engineer
5 33 (9.17%) Administrator
5 33 (9.17%) VMware Engineer
6 28 (7.78%) Azure Engineer
6 28 (7.78%) MySQL DBA
7 27 (7.50%) Architect
8 26 (7.22%) SQL Server DBA
9 25 (6.94%) Developer
10 21 (5.83%) 3rd Line Engineer
10 21 (5.83%) Project Engineer
10 21 (5.83%) Support Engineer
11 17 (4.72%) Active Directory Engineer
12 16 (4.44%) Windows Engineer
13 14 (3.89%) Applications Engineer
14 13 (3.61%) Consultant
15 12 (3.33%) Linux Engineer
15 12 (3.33%) VMware Support Engineer
Libraries, Frameworks & Software Standards
1 32 (8.89%) Web Services
2 11 (3.06%) REST
3 10 (2.78%) 802.1X
4 9 (2.50%) Spring
5 8 (2.22%) Middleware
6 6 (1.67%) .NET
6 6 (1.67%) HTML
6 6 (1.67%) Spring Boot
7 5 (1.39%) Kafka
8 4 (1.11%) AngularJS
8 4 (1.11%) FIX Protocol
8 4 (1.11%) Lambda Expressions
8 4 (1.11%) POSIX
9 3 (0.83%) Ajax
9 3 (0.83%) CSS
9 3 (0.83%) Hibernate
9 3 (0.83%) JMS
9 3 (0.83%) LAMP
9 3 (0.83%) SOAP
9 3 (0.83%) WSH
Miscellaneous
1 82 (22.78%) Replication
2 40 (11.11%) Analytical Skills
3 24 (6.67%) Data Centre
4 16 (4.44%) Management Information System
5 13 (3.61%) BYOD
6 12 (3.33%) Enterprise Software
6 12 (3.33%) Public Cloud
7 11 (3.06%) Hybrid Cloud
8 10 (2.78%) Virtual Team
9 8 (2.22%) Greenfield Project
10 6 (1.67%) Video Conferencing
11 5 (1.39%) Fixed Income
11 5 (1.39%) Linux Command Line
11 5 (1.39%) Self-Motivation
12 4 (1.11%) Enterprise Storage
12 4 (1.11%) Social Media
13 3 (0.83%) Driving Licence
13 3 (0.83%) LIMS
13 3 (0.83%) PKI
14 2 (0.56%) EMC VNX
Operating Systems
1 216 (60.00%) Windows
2 152 (42.22%) Windows Server
3 100 (27.78%) Linux
4 35 (9.72%) Windows Server 2008
5 34 (9.44%) Windows Server 2012
6 22 (6.11%) Windows 10
6 22 (6.11%) Windows Server 2016
7 16 (4.44%) Ubuntu
7 16 (4.44%) Unix
7 16 (4.44%) Windows Server 2019
8 14 (3.89%) CentOS
8 14 (3.89%) Red Hat Enterprise Linux
9 12 (3.33%) Mac OS
10 11 (3.06%) Solaris
11 9 (2.50%) Windows Server 2003
12 8 (2.22%) Windows 7
13 5 (1.39%) Debian
14 3 (0.83%) Fedora
14 3 (0.83%) SUSE
15 2 (0.56%) Apple iOS
Processes & Methodologies
1 89 (24.72%) Performance Tuning
2 73 (20.28%) High Availability
3 59 (16.39%) Disaster Recovery
4 58 (16.11%) Infrastructure Engineering
5 45 (12.50%) Migration
6 38 (10.56%) DevOps
7 37 (10.28%) Agile Software Development
7 37 (10.28%) Problem-Solving
8 35 (9.72%) ITIL
9 28 (7.78%) Business Intelligence
10 22 (6.11%) ETL
11 21 (5.83%) Fintech
12 20 (5.56%) Load Balancing
12 20 (5.56%) Service Management
12 20 (5.56%) Time Management
13 18 (5.00%) Change Control
13 18 (5.00%) Microservices
13 18 (5.00%) Problem Management
14 17 (4.72%) Performance Monitoring
14 17 (4.72%) Server Building
Programming Languages
1 120 (33.33%) SQL
2 100 (27.78%) PowerShell
3 46 (12.78%) T-SQL
4 31 (8.61%) Bash Shell
5 29 (8.06%) Java
6 26 (7.22%) Shell Script
7 24 (6.67%) Perl
7 24 (6.67%) Python
8 19 (5.28%) PL/SQL
9 15 (4.17%) C
10 10 (2.78%) Ruby
11 7 (1.94%) JavaScript
11 7 (1.94%) VBScript
12 4 (1.11%) Kotlin
12 4 (1.11%) Scala
13 3 (0.83%) C#
13 3 (0.83%) Java 8
14 2 (0.56%) VB
15 1 (0.28%) Go
15 1 (0.28%) R
Qualifications
1 42 (11.67%) Microsoft Certification
2 38 (10.56%) Security Cleared
3 35 (9.72%) SC Cleared
4 32 (8.89%) MCSE
5 28 (7.78%) MCSA
6 18 (5.00%) VMware Certified Professional (VCP)
7 16 (4.44%) MCP
8 15 (4.17%) MCITP
9 13 (3.61%) MCTS
10 10 (2.78%) CCNA
10 10 (2.78%) Cisco Certification
11 9 (2.50%) ITIL Certification
12 6 (1.67%) Degree
13 4 (1.11%) AWS Certification
14 3 (0.83%) CCNP
15 2 (0.56%) Computer Science Degree
15 2 (0.56%) MCDBA
16 1 (0.28%) DBS Check
16 1 (0.28%) ITIL Foundation Certificate
16 1 (0.28%) Master's Degree
Quality Assurance & Compliance
1 27 (7.50%) SLA
2 10 (2.78%) GDPR
3 9 (2.50%) ISO/IEC 27001
3 9 (2.50%) QA
4 4 (1.11%) Cyber Essentials
4 4 (1.11%) Cyber Essentials PLUS
4 4 (1.11%) ISO 9001
5 1 (0.28%) PCI DSS
System Software
1 171 (47.50%) Active Directory
2 95 (26.39%) VMware Infrastructure
3 89 (24.72%) Hyper-V
4 63 (17.50%) VMware ESXi
5 31 (8.61%) vSphere
6 19 (5.28%) Oracle RAC
7 15 (4.17%) Docker
8 13 (3.61%) XenApp
9 11 (3.06%) Virtual Machines
10 8 (2.22%) Veritas Volume Manager
11 7 (1.94%) KVM
12 6 (1.67%) Btrfs
12 6 (1.67%) Ceph
12 6 (1.67%) DRBD
12 6 (1.67%) Xen
13 5 (1.39%) Firmware
13 5 (1.39%) vCloud
14 4 (1.11%) Virtual Servers
15 3 (0.83%) Samba
15 3 (0.83%) Terminal Services
Systems Management
1 84 (23.33%) Microsoft Clustering
2 54 (15.00%) Failover Clustering
3 44 (12.22%) SCCM
4 27 (7.50%) vCenter Server
5 25 (6.94%) Microsoft Intune
6 17 (4.72%) Ansible
7 16 (4.44%) Kubernetes
8 14 (3.89%) Oracle RMAN
9 13 (3.61%) NetBackup
9 13 (3.61%) Terraform
10 11 (3.06%) McAfee ePO
11 9 (2.50%) SCOM
11 9 (2.50%) WSUS
12 6 (1.67%) HP Data Protector
12 6 (1.67%) Oracle ZFS
13 5 (1.39%) Grafana
13 5 (1.39%) Microsoft Data Protection Manager
13 5 (1.39%) SCDPM
14 4 (1.11%) Data Guard
14 4 (1.11%) Red Hat Satellite
Vendors
1 170 (47.22%) Microsoft
2 169 (46.94%) VMware
3 90 (25.00%) Oracle
4 73 (20.28%) Cisco
5 38 (10.56%) Citrix
6 34 (9.44%) HP
7 30 (8.33%) Google
8 27 (7.50%) Red Hat
9 21 (5.83%) Veeam
10 19 (5.28%) Dell
11 17 (4.72%) Veritas
12 15 (4.17%) McAfee
13 14 (3.89%) Brocade
13 14 (3.89%) Symantec
14 13 (3.61%) Acme Packet
14 13 (3.61%) Polycom
14 13 (3.61%) Yealink
15 9 (2.50%) 3PAR
15 9 (2.50%) Avaya
15 9 (2.50%) Lumension