The following table provides summary statistics for permanent job vacancies advertised in Twickenham with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 3 months to 28 June 2017 with a comparison to the same period in the previous 2 years.

Linux
London / Twickenham
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 16 5 23
Rank change year-on-year -11 +18  
Permanent jobs citing Linux 8 9 6
As % of all permanent IT jobs advertised in Twickenham 10.00% 15.00% 6.59%
As % of the Operating Systems category 36.36% 56.25% 25.00%
Number of salaries quoted 8 5 1
Median salary £53,750 £60,000 £37,500
Median salary % change year-on-year -10.41% +60.00%  
UK excluding London median salary £42,500 £42,500 £42,500

Linux is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Twickenham with a requirement for operating system skills.

Operating System Skills
Twickenham
Permanent job vacancies with a requirement for operating system skills 22 16 24
As % of all permanent IT job vacancies advertised in Twickenham 27.50% 26.67% 26.37%
Number of salaries quoted 21 12 19
Median salary £47,500 £42,500 £42,500
Median salary % change year-on-year +11.76% -  
90% offered a salary of more than £28,500 £30,000 £35,000
10% offered a salary of more than £60,000 £50,000 £60,000
UK excluding London median salary £37,500 £37,500 £37,500

Linux
Job Vacancy Trend in Twickenham

The job posting trend of jobs advertised in Twickenham citing Linux as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for Linux in Twickenham

Linux
Salary Trend in Twickenham

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Linux in Twickenham.

Salary trend for Linux in Twickenham

Linux
Salary Histogram in Twickenham

The salary distribution of IT jobs citing Linux in Twickenham over the 3 months to 28 June 2017.

Salary histogram for Linux in Twickenham

For the 6 months to 28 June 2017, IT jobs citing Linux also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Twickenham region with a requirement for Linux.

1 8 (100.00%) Oracle
2 5 (62.50%) SQL
3 4 (50.00%) ITIL
3 4 (50.00%) Windows
3 4 (50.00%) Windows Server
4 3 (37.50%) Virtual Servers
4 3 (37.50%) VMware Infrastructure
4 3 (37.50%) Windows Server 2008
4 3 (37.50%) AWS CloudFormation
4 3 (37.50%) Virtual Private Cloud
4 3 (37.50%) XenApp
4 3 (37.50%) Amazon EC2
4 3 (37.50%) Amazon S3
4 3 (37.50%) Amazon AWS
4 3 (37.50%) vSphere
4 3 (37.50%) Fibre Channel
4 3 (37.50%) Oracle Linux
4 3 (37.50%) Windows Server 2012
4 3 (37.50%) Amazon ELB
4 3 (37.50%) Amazon RDS
4 3 (37.50%) Amazon CloudWatch
4 3 (37.50%) vCenter Server
4 3 (37.50%) MCSE
4 3 (37.50%) MCSA
4 3 (37.50%) MCP
4 3 (37.50%) SAS
4 3 (37.50%) SLA
4 3 (37.50%) Active Directory
4 3 (37.50%) HP
4 3 (37.50%) Citrix

Linux
Co-occurring IT Skills in Twickenham 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 3 (37.50%) SAS
Cloud Services
1 3 (37.50%) Amazon AWS
1 3 (37.50%) Amazon CloudWatch
1 3 (37.50%) Amazon EC2
1 3 (37.50%) Amazon ELB
1 3 (37.50%) Amazon S3
1 3 (37.50%) AWS CloudFormation
1 3 (37.50%) Virtual Private Cloud
Communications & Networking
1 3 (37.50%) Fibre Channel
1 3 (37.50%) SAN
Database & Business Intelligence
1 3 (37.50%) Amazon RDS
2 1 (12.50%) Oracle Database
2 1 (12.50%) Oracle Database 10g
2 1 (12.50%) Oracle Database 11g
2 1 (12.50%) Oracle Database 12c
2 1 (12.50%) Oracle8/8i Database
Job Titles
1 5 (62.50%) DBA
1 5 (62.50%) Oracle DBA
2 4 (50.00%) Database Specialist
2 4 (50.00%) Linux Specialist
2 4 (50.00%) Oracle Specialist
2 4 (50.00%) SQL DBA
3 3 (37.50%) 3rd Line Engineer
3 3 (37.50%) 3rd Line Server Engineer
3 3 (37.50%) IT Engineer
3 3 (37.50%) Server Engineer
3 3 (37.50%) Systems Engineer
Operating Systems
1 4 (50.00%) Windows
1 4 (50.00%) Windows Server
2 3 (37.50%) Oracle Linux
2 3 (37.50%) Windows Server 2003
2 3 (37.50%) Windows Server 2008
2 3 (37.50%) Windows Server 2012
Processes & Methodologies
1 4 (50.00%) ITIL
2 1 (12.50%) Data Modelling
2 1 (12.50%) ITSM
2 1 (12.50%) Performance Tuning
2 1 (12.50%) Service Management
Programming Languages
1 5 (62.50%) SQL
2 1 (12.50%) PL/SQL
Qualifications
1 3 (37.50%) ITIL Certification
1 3 (37.50%) MCP
1 3 (37.50%) MCSA
1 3 (37.50%) MCSE
1 3 (37.50%) Microsoft Certification
1 3 (37.50%) VMware Certified Professional (VCP)
2 1 (12.50%) OCA
2 1 (12.50%) OCP
2 1 (12.50%) Oracle Certification
Quality Assurance & Compliance
1 3 (37.50%) SLA
System Software
1 3 (37.50%) Active Directory
1 3 (37.50%) Virtual Servers
1 3 (37.50%) VMware Infrastructure
1 3 (37.50%) vSphere
1 3 (37.50%) XenApp
2 1 (12.50%) Oracle Clusterware
2 1 (12.50%) Oracle RAC
Systems Management
1 3 (37.50%) vCenter Server
2 1 (12.50%) Data Guard
2 1 (12.50%) Enterprise Manager Cloud Control
2 1 (12.50%) Oracle Enterprise Manager
2 1 (12.50%) Oracle RMAN
Vendors
1 8 (100.00%) Oracle
2 3 (37.50%) Citrix
2 3 (37.50%) HP
2 3 (37.50%) VMware