Period
to 31 October 2020

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 31 October 2020 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
31 Oct 2020
Same period 2019 Same period 2018
Rank 459 550 522
Rank change year-on-year +91 -28 -91
Permanent jobs citing Clustering 235 623 887
As % of all permanent jobs advertised in the UK 0.47% 0.46% 0.54%
As % of the Miscellaneous category 1.24% 1.17% 1.37%
Number of salaries quoted 219 489 748
Median annual salary £52,500 £52,500 £52,500
10th Percentile £35,955 £36,250 £33,000
90th Percentile £77,500 £80,500 £82,500
UK excluding London median annual salary £47,500 £47,500 £44,000
% change year-on-year - +7.95% +3.53%

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 18,921 53,183 64,915
As % of all permanent IT jobs advertised in the UK 38.05% 38.90% 39.54%
Number of salaries quoted 15,258 40,286 49,608
Median annual salary £57,500 £52,500 £52,500
Median salary % change year-on-year +9.52% - +5.00%
10th Percentile £32,500 £29,750 £28,750
90th Percentile £97,500 £90,000 £86,000
UK excluding London median annual salary £48,000 £45,000 £45,000
% change year-on-year +6.67% - +5.88%

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 31 October 2020.

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 31 October 2020. 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 +97 218 £52,500 -4.55% 39
UK excluding London +112 143 £47,500 - 34
London +128 90 £60,000 -4.00% 9
North of England +162 60 £50,000 +8.11% 10
North West +123 39 £50,000 +33.33% 7
South East +119 28 £42,500 -15.00% 7
Work from Home +14 26 £57,500 -17.86% 2
Midlands +95 22 £42,500 -5.56% 7
Yorkshire +115 20 £60,000 +4.35% 2
West Midlands +81 19 £42,500 - 4
South West +89 14 £45,000 -5.26% 3
Wales +55 11 £30,000 -22.58% 4
Scotland +90 5 £42,500 -5.56%
East of England +114 3 £44,000 -2.22% 3
East Midlands +75 3 £42,500 -15.00% 3
North East +21 1 - - 1

For the 6 months to 31 October 2020, 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.

1 106 (45.11%) SQL
2 97 (41.28%) Microsoft
3 94 (40.00%) Performance Tuning
4 93 (39.57%) SQL Server
5 90 (38.30%) Windows
5 90 (38.30%) Azure
6 75 (31.91%) VMware
7 73 (31.06%) Linux
7 73 (31.06%) Active Directory
8 65 (27.66%) Replication
9 60 (25.53%) Hyper-V
10 58 (24.68%) Windows Server
11 50 (21.28%) DHCP
11 50 (21.28%) VMware Infrastructure
12 49 (20.85%) Office 365
12 49 (20.85%) DNS
12 49 (20.85%) Problem-Solving
13 48 (20.43%) PowerShell
14 46 (19.57%) Oracle
15 45 (19.15%) AWS
16 41 (17.45%) Infrastructure Engineering
17 39 (16.60%) Failover Clustering
18 36 (15.32%) LAN
18 36 (15.32%) Cisco
19 32 (13.62%) WAN
20 30 (12.77%) Agile Software Development
20 30 (12.77%) PostgreSQL
20 30 (12.77%) Firewall
20 30 (12.77%) Windows Server 2012
21 29 (12.34%) High Availability

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 24 (10.21%) MS Exchange
2 22 (9.36%) IIS
3 18 (7.66%) Skype for Business
4 14 (5.96%) SharePoint
5 10 (4.26%) Exchange Server 2010
6 9 (3.83%) Apache
7 8 (3.40%) Red Hat Fuse
8 7 (2.98%) WebLogic
9 6 (2.55%) Ethereum
9 6 (2.55%) Site Server
10 5 (2.13%) Adobe Experience Manager
10 5 (2.13%) CMS
11 4 (1.70%) Oracle SOA Suite
12 2 (0.85%) Confluence
12 2 (0.85%) Exchange Server 2013
12 2 (0.85%) NetWeaver
12 2 (0.85%) SharePoint 2010
13 1 (0.43%) Elasticsearch
13 1 (0.43%) OpenEdge
13 1 (0.43%) SAS
Applications
1 13 (5.53%) Microsoft Office
2 1 (0.43%) MS Visio
Business Applications
1 6 (2.55%) Quorum
2 4 (1.70%) Oracle Applications
3 1 (0.43%) Dynamics AX
3 1 (0.43%) Dynamics CRM
3 1 (0.43%) Remedy ITSM
Cloud Services
1 90 (38.30%) Azure
2 49 (20.85%) Office 365
3 45 (19.15%) AWS
4 21 (8.94%) IaaS
5 11 (4.68%) SaaS
6 9 (3.83%) Trello
7 8 (3.40%) PaaS
7 8 (3.40%) Power Platform
8 7 (2.98%) GCP
9 5 (2.13%) Azure Active Directory
10 2 (0.85%) Cloud Computing
10 2 (0.85%) Mimecast
11 1 (0.43%) Amazon EC2
11 1 (0.43%) Amazon EKS
11 1 (0.43%) AWS Lambda
11 1 (0.43%) Dynamics 365
11 1 (0.43%) G Suite
11 1 (0.43%) Logic Apps
11 1 (0.43%) OneDrive
11 1 (0.43%) Serverless
Communications & Networking
1 50 (21.28%) DHCP
2 49 (20.85%) DNS
3 36 (15.32%) LAN
4 32 (13.62%) WAN
5 30 (12.77%) Firewall
6 29 (12.34%) SAN
7 26 (11.06%) TCP/IP
8 22 (9.36%) VPN
9 20 (8.51%) Skype
9 20 (8.51%) VLAN
10 16 (6.81%) Remote Desktop
11 15 (6.38%) Wireless
12 14 (5.96%) Internet
13 12 (5.11%) iSCSI
14 10 (4.26%) Fibre Channel
15 9 (3.83%) MPLS
15 9 (3.83%) Wi-Fi
16 7 (2.98%) NetScaler
16 7 (2.98%) VSAN
17 6 (2.55%) IPv4
Database & Business Intelligence
1 93 (39.57%) SQL Server
2 30 (12.77%) PostgreSQL
3 25 (10.64%) Data Warehouse
4 23 (9.79%) SQL Server 2019
5 21 (8.94%) Snowflake Schema
5 21 (8.94%) SQL Server Integration Services
6 20 (8.51%) SQL Server Reporting Services
7 19 (8.09%) Looker
8 17 (7.23%) SQL Server Analysis Services
9 15 (6.38%) Oracle Database
10 14 (5.96%) Relational Database
11 13 (5.53%) Amazon RDS
12 11 (4.68%) MySQL
13 10 (4.26%) RDBMS
14 9 (3.83%) Oracle Database 12c
14 9 (3.83%) SQL Server 2008
14 9 (3.83%) SQL Server 2012
15 8 (3.40%) Power BI
15 8 (3.40%) SQL Server 2014
15 8 (3.40%) SQL Server 2016
Development Applications
1 22 (9.36%) JIRA
2 10 (4.26%) Git (software)
3 5 (2.13%) Jenkins
3 5 (2.13%) JUnit
4 3 (1.28%) Visual Studio Team System
5 2 (0.85%) SQL Server Management Studio (SSMS)
6 1 (0.43%) Bitbucket
6 1 (0.43%) Visual Studio
General
1 26 (11.06%) Finance
2 23 (9.79%) Law
3 18 (7.66%) Marketing
4 8 (3.40%) Public Sector
5 7 (2.98%) Banking
6 6 (2.55%) Retail
7 4 (1.70%) Automotive
7 4 (1.70%) Military
7 4 (1.70%) Publishing
8 3 (1.28%) Back Office
9 2 (0.85%) Front Office
9 2 (0.85%) Investment Banking
10 1 (0.43%) Aerospace
10 1 (0.43%) Financial Institution
10 1 (0.43%) Local Government
Job Titles
1 69 (29.36%) DBA
2 51 (21.70%) SQL DBA
3 28 (11.91%) Infrastructure Engineer
3 28 (11.91%) SQL Server DBA
4 22 (9.36%) Administrator
5 18 (7.66%) Analyst
6 17 (7.23%) Developer
7 15 (6.38%) Architect
7 15 (6.38%) Data Warehouse Developer
8 13 (5.53%) Consultant
8 13 (5.53%) Infrastructure Analyst
8 13 (5.53%) Linux Engineer
9 12 (5.11%) Support Engineer
10 10 (4.26%) 2nd Line Engineer
10 10 (4.26%) 3rd Line Engineer
10 10 (4.26%) IT Engineer
10 10 (4.26%) Network Engineer
10 10 (4.26%) SQL Developer
11 9 (3.83%) Systems Administrator
11 9 (3.83%) Systems Engineer
Libraries, Frameworks & Software Standards
1 13 (5.53%) Middleware
2 9 (3.83%) Ajax
2 9 (3.83%) AngularJS
2 9 (3.83%) Hibernate
2 9 (3.83%) HTML
2 9 (3.83%) OSGi
2 9 (3.83%) Spring
3 5 (2.13%) Apache Felix
3 5 (2.13%) Apache Sling
3 5 (2.13%) CSS
3 5 (2.13%) J2EE
3 5 (2.13%) Servlets
3 5 (2.13%) Struts
4 4 (1.70%) Apache Camel
4 4 (1.70%) GWT
4 4 (1.70%) HTML5
4 4 (1.70%) jQuery
4 4 (1.70%) JSF
4 4 (1.70%) REST
4 4 (1.70%) Web Services
Miscellaneous
1 65 (27.66%) Replication
2 26 (11.06%) Data Centre
3 20 (8.51%) Analytical Skills
4 12 (5.11%) Greenfield Project
5 7 (2.98%) Virtual Team
6 6 (2.55%) Enterprise Software
6 6 (2.55%) Management Information System
6 6 (2.55%) Social Media
7 4 (1.70%) Client/Server
7 4 (1.70%) FMCG
7 4 (1.70%) PKI
7 4 (1.70%) Video Conferencing
8 3 (1.28%) Analytical Mindset
8 3 (1.28%) Fat Client
8 3 (1.28%) Hybrid Cloud
8 3 (1.28%) Smartphone
8 3 (1.28%) Thin Client
9 2 (0.85%) Private Cloud
9 2 (0.85%) Public Cloud
10 1 (0.43%) LIMS
Operating Systems
1 90 (38.30%) Windows
2 73 (31.06%) Linux
3 58 (24.68%) Windows Server
4 30 (12.77%) Windows Server 2012
5 28 (11.91%) Windows Server 2008
6 23 (9.79%) Windows Server 2016
7 22 (9.36%) Red Hat Enterprise Linux
8 16 (6.81%) Windows 10
9 14 (5.96%) Windows Server 2019
10 11 (4.68%) CentOS
11 10 (4.26%) Windows 7
12 9 (3.83%) Unix
13 7 (2.98%) Oracle Linux
13 7 (2.98%) Ubuntu
14 5 (2.13%) Windows 8
15 4 (1.70%) Solaris
15 4 (1.70%) SUSE
16 2 (0.85%) AIX
17 1 (0.43%) Mac OS
Processes & Methodologies
1 94 (40.00%) Performance Tuning
2 49 (20.85%) Problem-Solving
3 41 (17.45%) Infrastructure Engineering
4 30 (12.77%) Agile Software Development
5 29 (12.34%) High Availability
5 29 (12.34%) Mentoring
6 27 (11.49%) Migration
7 26 (11.06%) Business Intelligence
8 25 (10.64%) ITIL
9 24 (10.21%) Data Architecture
9 24 (10.21%) Data Science
10 23 (9.79%) Analytics
10 23 (9.79%) Continuous Integration
10 23 (9.79%) Patch Management
11 22 (9.36%) Disaster Recovery
12 16 (6.81%) Data Engineering
12 16 (6.81%) ETL
13 15 (6.38%) Security Patching
14 14 (5.96%) DevOps
14 14 (5.96%) Software Engineering
Programming Languages
1 106 (45.11%) SQL
2 48 (20.43%) PowerShell
3 27 (11.49%) T-SQL
4 22 (9.36%) Python
5 14 (5.96%) Shell Script
6 13 (5.53%) Bash Shell
7 12 (5.11%) PL/SQL
8 11 (4.68%) C
8 11 (4.68%) C#
9 10 (4.26%) Java
10 9 (3.83%) JavaScript
11 4 (1.70%) Perl
11 4 (1.70%) Ruby
12 3 (1.28%) C++
12 3 (1.28%) Java 8
12 3 (1.28%) VBScript
13 2 (0.85%) Korn
14 1 (0.43%) PHP
Qualifications
1 20 (8.51%) Microsoft Certification
2 15 (6.38%) VMware Certified Professional (VCP)
3 13 (5.53%) MCSE
3 13 (5.53%) Security Cleared
4 12 (5.11%) SC Cleared
5 9 (3.83%) MCSA
6 6 (2.55%) Degree
7 4 (1.70%) Cisco Certification
7 4 (1.70%) MCITP
8 3 (1.28%) CCNA
8 3 (1.28%) ITIL Certification
9 2 (0.85%) Computer Science Degree
9 2 (0.85%) DV Cleared
9 2 (0.85%) MCP
10 1 (0.43%) CCDA
10 1 (0.43%) CCVP
10 1 (0.43%) Linux+ Certification
10 1 (0.43%) Master's Degree
10 1 (0.43%) RHCSA
10 1 (0.43%) VCDX
Quality Assurance & Compliance
1 21 (8.94%) SLA
2 6 (2.55%) ISO/IEC 27001
2 6 (2.55%) PCI DSS
3 5 (2.13%) GDPR
3 5 (2.13%) QA
4 1 (0.43%) DICOM
4 1 (0.43%) HL7
4 1 (0.43%) MiFID
System Software
1 73 (31.06%) Active Directory
2 60 (25.53%) Hyper-V
3 50 (21.28%) VMware Infrastructure
4 23 (9.79%) vSphere
5 19 (8.09%) Virtual Machines
6 18 (7.66%) VMware ESXi
7 13 (5.53%) Docker
8 9 (3.83%) Oracle RAC
9 7 (2.98%) Btrfs
9 7 (2.98%) Ceph
9 7 (2.98%) DRBD
9 7 (2.98%) KVM
9 7 (2.98%) Xen
10 6 (2.55%) XenApp
11 4 (1.70%) Virtual Servers
12 2 (0.85%) Microsoft Virtual Server
12 2 (0.85%) NFS
13 1 (0.43%) Firmware
13 1 (0.43%) ProxySG
13 1 (0.43%) Terminal Server
Systems Management
1 39 (16.60%) Failover Clustering
2 26 (11.06%) Microsoft Clustering
3 18 (7.66%) Ansible
4 15 (6.38%) SCCM
5 12 (5.11%) Oracle RMAN
5 12 (5.11%) Terraform
6 11 (4.68%) SCVMM
7 10 (4.26%) Kubernetes
8 9 (3.83%) vCenter Server
9 8 (3.40%) Data Guard
10 7 (2.98%) Oracle Enterprise Manager
10 7 (2.98%) Oracle ZFS
11 6 (2.55%) SCOM
12 4 (1.70%) Check_MK
12 4 (1.70%) Microsoft Data Protection Manager
12 4 (1.70%) Nagios
12 4 (1.70%) NetBackup
12 4 (1.70%) SCOrch
12 4 (1.70%) WSUS
13 3 (1.28%) Opscode Chef
Vendors
1 97 (41.28%) Microsoft
2 75 (31.91%) VMware
3 46 (19.57%) Oracle
4 36 (15.32%) Cisco
5 28 (11.91%) Red Hat
6 23 (9.79%) Citrix
7 22 (9.36%) Veeam
8 15 (6.38%) HP
9 11 (4.68%) Dell
9 11 (4.68%) McAfee
10 10 (4.26%) Google
11 9 (3.83%) CommVault
11 9 (3.83%) Meraki
12 7 (2.98%) Sophos
13 6 (2.55%) EMC
13 6 (2.55%) LogicMonitor
13 6 (2.55%) Nimble Storage
14 5 (2.13%) Adobe
15 4 (1.70%) IronPort
15 4 (1.70%) ServiceNow