Period
to 17 May 2021

The table below looks at the prevalence of the term Clustering in permanent job vacancies advertised in the City of London. Included is a benchmarking guide to the salaries offered in vacancies that have cited Clustering over the 6 months to 17 May 2021 with a comparison to the same period over the previous 2 years.

Clustering
Central London > City of London
6 months to
17 May 2021
Same period 2020 Same period 2019
Rank 200 263 269
Rank change year-on-year +63 +6 +13
Permanent jobs citing Clustering 29 17 67
As % of all permanent jobs advertised in the City of London 0.58% 0.23% 0.66%
As % of the Miscellaneous category 1.62% 0.62% 1.80%
Number of salaries quoted 18 14 60
10th Percentile £45,000 £42,150 £43,625
25th Percentile £50,625 £45,781 £47,313
Median annual salary (50th Percentile) £82,500 £50,000 £60,000
Median % change year-on-year +65.00% -16.67% +9.09%
75th Percentile £115,000 £58,750 £73,750
90th Percentile £120,000 £66,750 £85,500
Central London median annual salary £82,500 £57,500 £57,500
% change year-on-year +43.48% - +4.55%

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 advertised in the City of London with a requirement for generic IT skills.

All Generic IT Skills
City of London
Permanent vacancies with a requirement for generic IT skills 1,792 2,734 3,722
As % of all permanent IT jobs advertised in the City of London 36.06% 37.58% 36.74%
Number of salaries quoted 1,574 2,403 3,326
10th Percentile £43,750 £41,250 £38,750
25th Percentile £56,250 £52,500 £51,250
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £95,000 £88,750 £83,750
90th Percentile £112,500 £112,500 £100,000
Central London median annual salary £72,500 £70,000 £65,000
% change year-on-year +3.57% +7.69% +4.00%

Clustering
Job Vacancy Trend in the City of London

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

Job vacancy trend for Clustering in the City of London

Clustering
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing Clustering in the City of London.

Salary trend for Clustering in the City of London

Clustering
Salary Histogram in the City of London

Salary distribution for jobs citing Clustering in the City of London over the 6 months to 17 May 2021.

Salary histogram for Clustering in the City of London

For the 6 months to 17 May 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 across the City of London region with a requirement for Clustering.

1 23 (79.31%) AWS
2 19 (65.52%) High Availability
3 16 (55.17%) Azure
4 15 (51.72%) Jenkins
4 15 (51.72%) Continuous Integration
5 14 (48.28%) Windows
5 14 (48.28%) PostgreSQL
6 13 (44.83%) VMware
6 13 (44.83%) VMware Infrastructure
6 13 (44.83%) PowerShell
7 12 (41.38%) SQL Server
7 12 (41.38%) Java
7 12 (41.38%) Microservices
8 11 (37.93%) SQL
8 11 (37.93%) RDBMS
8 11 (37.93%) Relational Database
9 10 (34.48%) Agile Software Development
9 10 (34.48%) T-SQL
10 8 (27.59%) Python
10 8 (27.59%) ETL
10 8 (27.59%) Configuration Management
10 8 (27.59%) Migration
10 8 (27.59%) SQL Server Reporting Services
10 8 (27.59%) Service Delivery
10 8 (27.59%) Scrum
10 8 (27.59%) Google
10 8 (27.59%) SQL Server Integration Services
10 8 (27.59%) SQL Server Analysis Services
10 8 (27.59%) Git (software)
10 8 (27.59%) Database Security

Clustering
Co-occurring IT Skills in the City of 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 4 (13.79%) SharePoint
Applications
1 4 (13.79%) Microsoft Office
Cloud Services
1 23 (79.31%) AWS
2 16 (55.17%) Azure
3 8 (27.59%) GCP
4 7 (24.14%) PaaS
4 7 (24.14%) SaaS
5 5 (17.24%) Microsoft 365
6 2 (6.90%) Amazon ECS
6 2 (6.90%) Amazon ElastiCache
6 2 (6.90%) Amazon Kinesis
6 2 (6.90%) AWS CloudFormation
Communications & Networking
1 5 (17.24%) Firewall
1 5 (17.24%) iSCSI
1 5 (17.24%) VPN
2 4 (13.79%) DHCP
2 4 (13.79%) DNS
2 4 (13.79%) NAS
2 4 (13.79%) Network Security
Database & Business Intelligence
1 14 (48.28%) PostgreSQL
2 12 (41.38%) SQL Server
3 11 (37.93%) RDBMS
3 11 (37.93%) Relational Database
4 8 (27.59%) Azure SQL Database
4 8 (27.59%) InfluxDB
4 8 (27.59%) MongoDB
4 8 (27.59%) SQL Server 2012
4 8 (27.59%) SQL Server Analysis Services
4 8 (27.59%) SQL Server Integration Services
4 8 (27.59%) SQL Server Reporting Services
5 4 (13.79%) MySQL
6 3 (10.34%) Oracle Database
6 3 (10.34%) Oracle Database 12c
6 3 (10.34%) Oracle Exadata
6 3 (10.34%) SQL Server 2014
6 3 (10.34%) SQL Server 2016
7 1 (3.45%) MariaDB
Development Applications
1 15 (51.72%) Jenkins
2 8 (27.59%) Git (software)
2 8 (27.59%) Octopus Deploy
3 5 (17.24%) JIRA
General
1 8 (27.59%) Social Skills
2 7 (24.14%) Banking
2 7 (24.14%) Finance
3 5 (17.24%) Documentation Skills
Job Titles
1 14 (48.28%) Developer
2 11 (37.93%) DBA
3 10 (34.48%) SQL Server DBA
4 8 (27.59%) Senior DBA
4 8 (27.59%) Senior SQL DBA
4 8 (27.59%) Senior SQL Server DBA
4 8 (27.59%) SQL DBA
5 7 (24.14%) AWS Developer
5 7 (24.14%) Java Developer
6 5 (17.24%) Backend Developer
6 5 (17.24%) Lead Developer
6 5 (17.24%) VMware Engineer
7 4 (13.79%) Cisco Engineer
7 4 (13.79%) Linux Engineer
7 4 (13.79%) Windows Engineer
8 3 (10.34%) Cisco Support Engineer
8 3 (10.34%) Cloud Engineer
8 3 (10.34%) MySQL DBA
8 3 (10.34%) Senior VMware Engineer
8 3 (10.34%) VMware Support Engineer
Libraries, Frameworks & Software Standards
1 7 (24.14%) REST
2 5 (17.24%) Web Services
3 2 (6.90%) HTML
3 2 (6.90%) HTML5
3 2 (6.90%) Kafka
3 2 (6.90%) Lambda Expressions
3 2 (6.90%) Redux
3 2 (6.90%) Spring
3 2 (6.90%) Spring Boot
Miscellaneous
1 7 (24.14%) Enterprise Software
2 5 (17.24%) Fixed Income
2 5 (17.24%) Replication
3 2 (6.90%) Data Structures
4 1 (3.45%) Management Information System
Operating Systems
1 14 (48.28%) Windows
2 7 (24.14%) Linux
3 5 (17.24%) Mac OS
3 5 (17.24%) Windows 10
3 5 (17.24%) Windows Server
4 4 (13.79%) Ubuntu
4 4 (13.79%) Windows Server 2008
5 1 (3.45%) Unix
Processes & Methodologies
1 19 (65.52%) High Availability
2 15 (51.72%) Continuous Integration
3 12 (41.38%) Microservices
4 10 (34.48%) Agile Software Development
5 8 (27.59%) Capacity Planning
5 8 (27.59%) Configuration Management
5 8 (27.59%) Database Security
5 8 (27.59%) DevOps
5 8 (27.59%) ETL
5 8 (27.59%) Migration
5 8 (27.59%) Open Source
5 8 (27.59%) Performance Analysis
5 8 (27.59%) Performance Monitoring
5 8 (27.59%) Performance Tuning
5 8 (27.59%) Scrum
5 8 (27.59%) Service Delivery
5 8 (27.59%) Task Automation
6 7 (24.14%) OO
6 7 (24.14%) Scalability Testing
7 5 (17.24%) ITIL
Programming Languages
1 13 (44.83%) PowerShell
2 12 (41.38%) Java
3 11 (37.93%) SQL
4 10 (34.48%) T-SQL
5 8 (27.59%) Python
6 5 (17.24%) Kotlin
6 5 (17.24%) Scala
7 2 (6.90%) JavaScript
7 2 (6.90%) Perl
7 2 (6.90%) PL/SQL
7 2 (6.90%) Shell Script
8 1 (3.45%) Bash Shell
Qualifications
1 5 (17.24%) CCNA
1 5 (17.24%) Cisco Certification
1 5 (17.24%) ITIL Certification
2 3 (10.34%) CCNP
3 1 (3.45%) SC Cleared
3 1 (3.45%) Security Cleared
Quality Assurance & Compliance
1 4 (13.79%) Cyber Essentials
1 4 (13.79%) Cyber Essentials PLUS
1 4 (13.79%) ISO/IEC 27001
System Software
1 13 (44.83%) VMware Infrastructure
2 8 (27.59%) Docker
3 5 (17.24%) Hyper-V
4 4 (13.79%) Active Directory
5 3 (10.34%) Oracle RAC
Systems Management
1 8 (27.59%) Ansible
1 8 (27.59%) Grafana
1 8 (27.59%) Terraform
2 5 (17.24%) Kubernetes
2 5 (17.24%) Microsoft Data Protection Manager
2 5 (17.24%) Microsoft Intune
2 5 (17.24%) SCDPM
3 4 (13.79%) Failover Clustering
4 3 (10.34%) Oracle RMAN
Vendors
1 13 (44.83%) VMware
2 8 (27.59%) Google
3 5 (17.24%) Microsoft
4 4 (13.79%) Aruba
4 4 (13.79%) Barracuda Networks
4 4 (13.79%) Cisco
4 4 (13.79%) HP
4 4 (13.79%) Oracle
4 4 (13.79%) Synology