The following table provides summary statistics for permanent job vacancies advertised in Chiswick with a requirement for Unix skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Unix over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

Unix
London / Chiswick
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 16 16 18
Rank change year-on-year 0 +2  
Permanent jobs citing Unix 10 7 1
As % of all permanent IT jobs advertised in Chiswick 14.71% 9.59% 1.75%
As % of the Operating Systems category 31.25% 24.14% 4.35%
Number of salaries quoted 10 6 1
Median salary £52,500 £55,000 £62,500
Median salary % change year-on-year -4.54% -12.00%  
UK excluding London median salary £45,000 £43,000 £42,500
% change year-on-year +4.65% +1.17%  

Unix 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 Chiswick with a requirement for operating system skills.

Operating System Skills
Chiswick
Permanent job vacancies with a requirement for operating system skills 32 29 23
As % of all permanent IT job vacancies advertised in Chiswick 47.06% 39.73% 40.35%
Number of salaries quoted 32 28 23
Median salary £52,500 £52,500 £45,000
Median salary % change year-on-year - +16.66%  
90% offered a salary of more than £26,000 £26,000 £24,000
10% offered a salary of more than £57,500 £45,000 £59,250
UK excluding London median salary £37,500 £37,500 £37,500

Unix
Job Vacancy Trend in Chiswick

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

Job vacancy trend for Unix in Chiswick

Unix
Salary Trend in Chiswick

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

Salary trend for Unix in Chiswick

For the 6 months to 29 March 2017, IT jobs citing Unix 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 Chiswick region with a requirement for Unix.

1 22 (100.00%) Linux
2 21 (95.45%) Python
2 21 (95.45%) MySQL
2 21 (95.45%) Agile Software Development
2 21 (95.45%) Continuous Integration
3 20 (90.91%) Unit Testing
3 20 (90.91%) Test Automation
3 20 (90.91%) RESTful
3 20 (90.91%) Software Testing
3 20 (90.91%) QA
3 20 (90.91%) Selenium
3 20 (90.91%) jMock
3 20 (90.91%) Hamcrest
3 20 (90.91%) Cucumber
3 20 (90.91%) Apache Cassandra
3 20 (90.91%) NoSQL
3 20 (90.91%) SoapUI
3 20 (90.91%) REST
3 20 (90.91%) HBase
3 20 (90.91%) SaaS
3 20 (90.91%) JMeter
3 20 (90.91%) JUnit
3 20 (90.91%) Web Services
3 20 (90.91%) Java
3 20 (90.91%) SOA
3 20 (90.91%) Continuous Delivery
4 3 (13.64%) QA Automation
5 1 (4.55%) Sonatype Nexus
5 1 (4.55%) RSA Security Analytics
5 1 (4.55%) NetWitness

Unix
Co-occurring IT Skills in Chiswick 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:

Cloud Services
1 20 (90.91%) SaaS
Communications & Networking
1 1 (4.55%) Intrusion Detection
1 1 (4.55%) TCP/IP
Database & Business Intelligence
1 21 (95.45%) MySQL
2 20 (90.91%) Apache Cassandra
2 20 (90.91%) HBase
2 20 (90.91%) NoSQL
Development Applications
1 20 (90.91%) Cucumber
1 20 (90.91%) Hamcrest
1 20 (90.91%) JMeter
1 20 (90.91%) jMock
1 20 (90.91%) JUnit
1 20 (90.91%) Selenium
1 20 (90.91%) SoapUI
2 1 (4.55%) Gradle
2 1 (4.55%) Jenkins
2 1 (4.55%) Maven
2 1 (4.55%) Sonatype Nexus
Job Titles
1 20 (90.91%) QA Tester
1 20 (90.91%) Selenium Tester
1 20 (90.91%) Tester
2 18 (81.82%) Automation Tester
2 18 (81.82%) Java Automation Tester
2 18 (81.82%) QA Automation Tester
2 18 (81.82%) Selenium Automation Tester
3 16 (72.73%) Senior QA Tester
3 16 (72.73%) Senior Tester
4 14 (63.64%) Senior Automation Tester
5 13 (59.09%) Java Engineer
5 13 (59.09%) QA Engineer
5 13 (59.09%) Senior Java Engineer
5 13 (59.09%) Senior QA Engineer
6 11 (50.00%) QA Automation Engineer
7 9 (40.91%) Linux Engineer
7 9 (40.91%) Senior Linux Engineer
8 8 (36.36%) Agile Tester
9 4 (18.18%) Senior Agile Tester
9 4 (18.18%) Web Tester
Libraries, Frameworks & Software Standards
1 20 (90.91%) REST
1 20 (90.91%) RESTful
1 20 (90.91%) Web Services
Operating Systems
1 22 (100.00%) Linux
2 1 (4.55%) Solaris
2 1 (4.55%) Windows
Processes & Methodologies
1 21 (95.45%) Agile Software Development
1 21 (95.45%) Continuous Integration
2 20 (90.91%) Continuous Delivery
2 20 (90.91%) SOA
2 20 (90.91%) Software Testing
2 20 (90.91%) Test Automation
2 20 (90.91%) Unit Testing
3 3 (13.64%) QA Automation
4 1 (4.55%) Analytics
4 1 (4.55%) Configuration Management
4 1 (4.55%) Cybersecurity
4 1 (4.55%) DevOps
4 1 (4.55%) Incident Management
4 1 (4.55%) Information Security
4 1 (4.55%) Operations Management
4 1 (4.55%) Security Monitoring
4 1 (4.55%) SIEM
Programming Languages
1 21 (95.45%) Python
2 20 (90.91%) Java
3 1 (4.55%) Perl
3 1 (4.55%) Ruby
3 1 (4.55%) SQL
Qualifications
1 1 (4.55%) CEH
1 1 (4.55%) CISSP
1 1 (4.55%) GCIA
1 1 (4.55%) GCIH
Quality Assurance & Compliance
1 20 (90.91%) QA
2 1 (4.55%) PCI DSS
2 1 (4.55%) Sarbanes-Oxley
Systems Management
1 1 (4.55%) Opscode Chef
1 1 (4.55%) Puppet
1 1 (4.55%) RSA Security Analytics
Vendors
1 1 (4.55%) Forcepoint
1 1 (4.55%) NetWitness
1 1 (4.55%) Qualys
1 1 (4.55%) Sourcefire