Period
to 25 January 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 25 January 2021 with a comparison to the same period over the previous 2 years.

Clustering
UK
6 months to
25 Jan 2021
Same period 2020 Same period 2019
Rank 484 549 494
Rank change year-on-year +65 -55 -49
Permanent jobs citing Clustering 308 554 884
As % of all permanent jobs advertised in the UK 0.48% 0.44% 0.58%
As % of the Miscellaneous category 1.24% 1.15% 1.47%
Number of salaries quoted 306 443 805
Median annual salary £50,000 £52,500 £50,000
Median salary % change year-on-year -4.76% +5.00% 0.00%
10th Percentile £33,750 £35,250 £35,000
90th Percentile £87,500 £76,250 £80,000
UK excluding London median annual salary £45,000 £47,500 £44,500
% change year-on-year -5.26% +6.74% -1.11%

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 24,808 48,114 60,069
As % of all permanent IT jobs advertised in the UK 38.54% 38.52% 39.58%
Number of salaries quoted 19,260 37,405 46,331
Median annual salary £55,000 £55,000 £52,500
Median salary % change year-on-year - +4.76% +5.00%
10th Percentile £32,500 £30,000 £29,250
90th Percentile £95,000 £93,750 £87,500
UK excluding London median annual salary £48,000 £45,000 £45,000
% change year-on-year +6.67% - +4.65%

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 25 January 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 25 January 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 +64 279 £51,000 -2.86% 71
UK excluding London +63 182 £45,000 -5.26% 37
London +150 117 £65,000 +8.33% 36
North of England +87 72 £50,000 - 10
Work from Home -50 51 £57,500 -16.36% 6
North West +75 47 £50,000 +11.11% 9
South East +43 34 £45,000 -6.25% 11
Midlands +75 29 £35,000 -22.22% 12
West Midlands +63 24 £35,000 -20.00% 10
Yorkshire +40 21 £60,000 +14.29%
South West +51 19 £45,000 -5.26% 1
Wales +41 11 £50,000 +33.33%
Scotland +36 9 £45,000 -14.29% 1
East of England +61 8 £37,500 -11.76% 1
East Midlands +58 5 £45,000 -10.00% 2
North East +20 4 £50,000 +1.05% 1

For the 6 months to 25 January 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.

1 145 (47.08%) Windows
2 132 (42.86%) SQL
2 132 (42.86%) SQL Server
3 126 (40.91%) Azure
4 124 (40.26%) Microsoft
5 121 (39.29%) VMware
6 118 (38.31%) Performance Tuning
7 108 (35.06%) Windows Server
8 106 (34.42%) Active Directory
9 100 (32.47%) Linux
10 84 (27.27%) Replication
10 84 (27.27%) Hyper-V
11 83 (26.95%) Oracle
12 82 (26.62%) AWS
13 79 (25.65%) VMware Infrastructure
14 68 (22.08%) PowerShell
15 59 (19.16%) Cisco
16 57 (18.51%) Infrastructure Engineering
17 55 (17.86%) Office 365
18 53 (17.21%) Failover Clustering
19 50 (16.23%) DNS
20 48 (15.58%) Firewall
20 48 (15.58%) Microsoft Clustering
21 47 (15.26%) Migration
22 45 (14.61%) Problem-Solving
23 44 (14.29%) PostgreSQL
23 44 (14.29%) High Availability
24 43 (13.96%) DHCP
25 41 (13.31%) Disaster Recovery
26 39 (12.66%) Business Intelligence

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 31 (10.06%) MS Exchange
2 30 (9.74%) IIS
3 21 (6.82%) Skype for Business
4 13 (4.22%) Exchange Server 2010
4 13 (4.22%) SharePoint
5 8 (2.60%) Red Hat Fuse
6 7 (2.27%) WebLogic
7 6 (1.95%) Apache
7 6 (1.95%) Ethereum
7 6 (1.95%) Site Server
8 5 (1.62%) Adobe Experience Manager
8 5 (1.62%) CMS
8 5 (1.62%) Elasticsearch
8 5 (1.62%) OpenEdge
9 4 (1.30%) Confluence
9 4 (1.30%) Oracle SOA Suite
10 2 (0.65%) Exchange Server 2013
10 2 (0.65%) SharePoint 2010
11 1 (0.32%) BizTalk Server
11 1 (0.32%) SAS
Applications
1 14 (4.55%) Microsoft Office
Business Applications
1 6 (1.95%) Quorum
2 4 (1.30%) Oracle Applications
2 4 (1.30%) Remedy ITSM
3 2 (0.65%) Oracle EBS R12
4 1 (0.32%) Dynamics AX
4 1 (0.32%) Dynamics CRM
Cloud Services
1 126 (40.91%) Azure
2 82 (26.62%) AWS
3 55 (17.86%) Office 365
4 26 (8.44%) IaaS
5 21 (6.82%) Power Platform
6 17 (5.52%) SaaS
7 16 (5.19%) Azure Active Directory
7 16 (5.19%) Trello
8 14 (4.55%) GCP
8 14 (4.55%) PaaS
9 6 (1.95%) Mimecast
10 3 (0.97%) Amazon S3
11 2 (0.65%) Cloud Computing
12 1 (0.32%) Amazon EC2
12 1 (0.32%) Amazon ElastiCache
12 1 (0.32%) Amazon Kinesis
12 1 (0.32%) AWS CloudFormation
12 1 (0.32%) AWS Lambda
12 1 (0.32%) Dynamics 365
12 1 (0.32%) G Suite
Communications & Networking
1 50 (16.23%) DNS
2 48 (15.58%) Firewall
3 43 (13.96%) DHCP
4 30 (9.74%) SAN
5 28 (9.09%) WAN
6 27 (8.77%) LAN
6 27 (8.77%) VLAN
7 26 (8.44%) TCP/IP
8 23 (7.47%) iSCSI
8 23 (7.47%) Skype
9 20 (6.49%) VPN
10 18 (5.84%) MPLS
10 18 (5.84%) Remote Desktop
11 13 (4.22%) Fibre Channel
11 13 (4.22%) VoIP
12 11 (3.57%) Internet
12 11 (3.57%) Wireless
13 9 (2.92%) PBX
13 9 (2.92%) Unified Communications
13 9 (2.92%) WebEx
Database & Business Intelligence
1 132 (42.86%) SQL Server
2 44 (14.29%) PostgreSQL
3 35 (11.36%) SQL Server Integration Services
3 35 (11.36%) SQL Server Reporting Services
4 30 (9.74%) MySQL
5 29 (9.42%) Data Warehouse
6 24 (7.79%) Snowflake Schema
6 24 (7.79%) SQL Server 2019
6 24 (7.79%) SQL Server Analysis Services
7 22 (7.14%) Looker
8 21 (6.82%) Power BI
9 18 (5.84%) MariaDB
10 16 (5.19%) Relational Database
11 15 (4.87%) Oracle Database
11 15 (4.87%) SQL Server 2008
11 15 (4.87%) SQL Server 2016
12 13 (4.22%) SQL Server 2012
13 12 (3.90%) SQL Server 2014
14 10 (3.25%) Azure SQL Database
14 10 (3.25%) RDBMS
Development Applications
1 33 (10.71%) JIRA
2 8 (2.60%) Jenkins
3 6 (1.95%) Git (software)
4 5 (1.62%) JUnit
5 3 (0.97%) Visual Studio Team System
6 2 (0.65%) SQL Server Management Studio (SSMS)
7 1 (0.32%) Gradle
7 1 (0.32%) Visual Studio
General
1 21 (6.82%) Law
2 18 (5.84%) Finance
3 14 (4.55%) Public Sector
4 12 (3.90%) Marketing
5 6 (1.95%) Retail
6 5 (1.62%) Automotive
7 4 (1.30%) Banking
7 4 (1.30%) Publishing
8 3 (0.97%) Military
9 1 (0.32%) Aerospace
9 1 (0.32%) Financial Institution
9 1 (0.32%) Front Office
9 1 (0.32%) Local Government
9 1 (0.32%) Police
Job Titles
1 93 (30.19%) DBA
2 60 (19.48%) SQL DBA
3 40 (12.99%) Infrastructure Engineer
4 30 (9.74%) Administrator
5 23 (7.47%) VMware Engineer
6 22 (7.14%) Support Engineer
7 20 (6.49%) Developer
7 20 (6.49%) IT Engineer
7 20 (6.49%) SQL Server DBA
8 19 (6.17%) Linux Engineer
8 19 (6.17%) MySQL DBA
9 18 (5.84%) Azure Engineer
10 17 (5.52%) 3rd Line Engineer
10 17 (5.52%) Analyst
10 17 (5.52%) Architect
11 16 (5.19%) Consultant
11 16 (5.19%) Data Warehouse Developer
12 15 (4.87%) 3rd Line Support
13 12 (3.90%) Applications Engineer
13 12 (3.90%) Infrastructure Analyst
Libraries, Frameworks & Software Standards
1 18 (5.84%) Middleware
1 18 (5.84%) Web Services
2 10 (3.25%) AngularJS
2 10 (3.25%) HTML
2 10 (3.25%) Spring
3 9 (2.92%) Ajax
3 9 (2.92%) Hibernate
3 9 (2.92%) OSGi
4 6 (1.95%) REST
5 5 (1.62%) Apache Felix
5 5 (1.62%) Apache Sling
5 5 (1.62%) CSS
5 5 (1.62%) HTML5
5 5 (1.62%) J2EE
5 5 (1.62%) Servlets
5 5 (1.62%) Struts
6 4 (1.30%) COM
6 4 (1.30%) JDBC
6 4 (1.30%) JMS
6 4 (1.30%) JSF
Miscellaneous
1 84 (27.27%) Replication
2 31 (10.06%) Analytical Skills
3 19 (6.17%) Data Centre
4 14 (4.55%) Greenfield Project
5 10 (3.25%) Video Conferencing
5 10 (3.25%) Virtual Team
6 9 (2.92%) BYOD
7 8 (2.60%) Management Information System
7 8 (2.60%) Social Media
8 7 (2.27%) Enterprise Software
9 6 (1.95%) Public Cloud
10 5 (1.62%) Hybrid Cloud
11 4 (1.30%) FMCG
11 4 (1.30%) LIMS
12 3 (0.97%) Client/Server
12 3 (0.97%) Driving Licence
12 3 (0.97%) Fat Client
12 3 (0.97%) Linux Command Line
12 3 (0.97%) Smartphone
12 3 (0.97%) Thin Client
Operating Systems
1 145 (47.08%) Windows
2 108 (35.06%) Windows Server
3 100 (32.47%) Linux
4 25 (8.12%) Windows Server 2008
5 24 (7.79%) Windows Server 2012
6 20 (6.49%) Red Hat Enterprise Linux
7 18 (5.84%) Windows Server 2016
8 15 (4.87%) Windows 10
9 14 (4.55%) CentOS
10 11 (3.57%) Ubuntu
10 11 (3.57%) Unix
11 10 (3.25%) Mac OS
12 8 (2.60%) Windows Server 2019
13 7 (2.27%) Windows 7
14 5 (1.62%) Debian
14 5 (1.62%) Solaris
14 5 (1.62%) SUSE
15 4 (1.30%) Oracle Linux
16 3 (0.97%) Fedora
16 3 (0.97%) Windows 8
Processes & Methodologies
1 118 (38.31%) Performance Tuning
2 57 (18.51%) Infrastructure Engineering
3 47 (15.26%) Migration
4 45 (14.61%) Problem-Solving
5 44 (14.29%) High Availability
6 41 (13.31%) Disaster Recovery
7 39 (12.66%) Business Intelligence
8 35 (11.36%) Agile Software Development
9 28 (9.09%) Data Science
10 26 (8.44%) ETL
11 24 (7.79%) Data Architecture
12 22 (7.14%) ITIL
12 22 (7.14%) Mentoring
13 21 (6.82%) Analytics
14 19 (6.17%) DevOps
15 18 (5.84%) Actionable Insight
16 17 (5.52%) Continuous Integration
17 16 (5.19%) Data Ingestion
17 16 (5.19%) Sprint Planning
18 14 (4.55%) Patch Management
Programming Languages
1 132 (42.86%) SQL
2 68 (22.08%) PowerShell
3 36 (11.69%) T-SQL
4 30 (9.74%) Bash Shell
5 23 (7.47%) Python
6 21 (6.82%) PL/SQL
7 18 (5.84%) C
8 14 (4.55%) Shell Script
9 12 (3.90%) Java
10 11 (3.57%) JavaScript
11 8 (2.60%) C#
12 7 (2.27%) Perl
13 5 (1.62%) Ruby
14 4 (1.30%) VBScript
15 3 (0.97%) C++
15 3 (0.97%) Java 8
16 2 (0.65%) Korn
17 1 (0.32%) Kotlin
17 1 (0.32%) Scala
Qualifications
1 32 (10.39%) Microsoft Certification
2 24 (7.79%) Security Cleared
3 22 (7.14%) SC Cleared
4 19 (6.17%) MCSA
4 19 (6.17%) MCSE
4 19 (6.17%) VMware Certified Professional (VCP)
5 13 (4.22%) MCP
6 12 (3.90%) MCITP
7 11 (3.57%) CCNA
7 11 (3.57%) Cisco Certification
8 9 (2.92%) MCTS
9 7 (2.27%) ITIL Certification
10 4 (1.30%) Degree
11 3 (0.97%) CCNP
12 2 (0.65%) Computer Science Degree
12 2 (0.65%) Master's Degree
13 1 (0.32%) A+ Certification
13 1 (0.32%) AWS Certification
13 1 (0.32%) Network+ Certification
Quality Assurance & Compliance
1 25 (8.12%) SLA
2 14 (4.55%) GDPR
3 9 (2.92%) QA
4 4 (1.30%) ISO/IEC 27001
5 3 (0.97%) Cyber Essentials
5 3 (0.97%) Cyber Essentials PLUS
System Software
1 106 (34.42%) Active Directory
2 84 (27.27%) Hyper-V
3 79 (25.65%) VMware Infrastructure
4 33 (10.71%) VMware ESXi
5 26 (8.44%) vSphere
6 16 (5.19%) Oracle RAC
7 13 (4.22%) Docker
8 12 (3.90%) Virtual Machines
9 9 (2.92%) XenApp
10 8 (2.60%) Btrfs
10 8 (2.60%) Ceph
10 8 (2.60%) DRBD
10 8 (2.60%) KVM
10 8 (2.60%) Xen
11 6 (1.95%) Firmware
12 4 (1.30%) vCloud
12 4 (1.30%) Virtual Servers
13 3 (0.97%) Samba
14 2 (0.65%) NFS
15 1 (0.32%) Terminal Server
Systems Management
1 53 (17.21%) Failover Clustering
2 48 (15.58%) Microsoft Clustering
3 31 (10.06%) SCCM
4 17 (5.52%) Ansible
5 14 (4.55%) Kubernetes
5 14 (4.55%) Terraform
6 12 (3.90%) Data Guard
6 12 (3.90%) Oracle RMAN
7 10 (3.25%) vCenter Server
8 8 (2.60%) Oracle ZFS
9 6 (1.95%) Microsoft Intune
10 5 (1.62%) Oracle Enterprise Manager
11 4 (1.30%) Microsoft Data Protection Manager
11 4 (1.30%) SCDPM
11 4 (1.30%) SCOM
11 4 (1.30%) SCVMM
12 2 (0.65%) Galera Cluster
12 2 (0.65%) Perfmon
12 2 (0.65%) SnapMirror
12 2 (0.65%) WSUS
Vendors
1 124 (40.26%) Microsoft
2 121 (39.29%) VMware
3 83 (26.95%) Oracle
4 59 (19.16%) Cisco
5 30 (9.74%) HP
5 30 (9.74%) Red Hat
6 27 (8.77%) Citrix
7 22 (7.14%) Google
8 21 (6.82%) Veeam
9 12 (3.90%) Dell
9 12 (3.90%) Sophos
10 10 (3.25%) McAfee
11 9 (2.92%) Acme Packet
11 9 (2.92%) Polycom
11 9 (2.92%) Yealink
12 7 (2.27%) Meraki
13 6 (1.95%) Avaya
14 5 (1.62%) Adobe
14 5 (1.62%) Brocade
14 5 (1.62%) CommVault