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

Comprehensive Perl Archive Network (CPAN)
England / London
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 608 634 650
Rank change year-on-year +26 +16  
Permanent jobs citing CPAN 4 10 19
As % of all permanent IT jobs advertised in London 0.011% 0.025% 0.043%
As % of the Libraries, Frameworks & Software Standards category 0.027% 0.062% 0.11%
Number of salaries quoted 4 9 13
Median salary £53,250 £50,000 £50,000
Median salary % change year-on-year +6.50% -  
UK excluding London median salary £32,159 - £52,500

CPAN is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 14727 16185 16787
As % of all permanent IT job vacancies advertised in London 40.18% 40.41% 37.93%
Number of salaries quoted 12154 14301 14459
Median salary £58,000 £55,000 £55,000
Median salary % change year-on-year +5.45% -  
90% offered a salary of more than £40,000 £37,995 £35,000
10% offered a salary of more than £80,000 £75,000 £77,500
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year +6.25% -  

CPAN
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing CPAN as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for CPAN in London

CPAN
Salary Trend in London

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

Salary trend for CPAN in London

CPAN
Salary Histogram in London

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

Salary histogram for CPAN in London

For the 6 months to 28 June 2017, IT jobs citing CPAN 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 London region with a requirement for CPAN.

1 13 (100.00%) Perl
1 13 (100.00%) SQL
1 13 (100.00%) MySQL
1 13 (100.00%) Linux
1 13 (100.00%) E-Commerce
1 13 (100.00%) RDBMS
1 13 (100.00%) PostgreSQL
1 13 (100.00%) Scrum
1 13 (100.00%) Agile Software Development
1 13 (100.00%) TDD
1 13 (100.00%) ActiveMQ
1 13 (100.00%) Kanban
1 13 (100.00%) Git (software)
1 13 (100.00%) Refactoring
1 13 (100.00%) Scala
1 13 (100.00%) Jenkins
1 13 (100.00%) Relational Database
1 13 (100.00%) Catalyst
1 13 (100.00%) DBIx::Class
1 13 (100.00%) Moose
1 13 (100.00%) Plack
1 13 (100.00%) Continuous Delivery
1 13 (100.00%) High Availability
1 13 (100.00%) OpenStack
2 11 (84.62%) Cucumber
2 11 (84.62%) Apache Flex
2 11 (84.62%) Ruby
2 11 (84.62%) Java
2 11 (84.62%) SOA
3 3 (23.08%) jQuery

CPAN
Co-occurring IT Skills in 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 13 (100.00%) OpenStack
Communications & Networking
1 2 (15.38%) HTTP
Database & Business Intelligence
1 13 (100.00%) MySQL
1 13 (100.00%) PostgreSQL
1 13 (100.00%) RDBMS
1 13 (100.00%) Relational Database
Development Applications
1 13 (100.00%) Git (software)
1 13 (100.00%) Jenkins
2 11 (84.62%) Cucumber
Job Titles
1 13 (100.00%) Developer
1 13 (100.00%) Perl Developer
2 10 (76.92%) E-Commerce Developer
3 5 (38.46%) Scala Developer
4 1 (7.69%) Principal Developer
4 1 (7.69%) Senior Developer
4 1 (7.69%) Senior Perl Developer
Libraries, Frameworks & Software Standards
1 13 (100.00%) ActiveMQ
1 13 (100.00%) Catalyst
1 13 (100.00%) DBIx::Class
1 13 (100.00%) Moose
1 13 (100.00%) Plack
2 11 (84.62%) Apache Flex
3 3 (23.08%) jQuery
4 2 (15.38%) JSON
4 2 (15.38%) Node.js
Miscellaneous
1 2 (15.38%) Greenfield Project
Operating Systems
1 13 (100.00%) Linux
Processes & Methodologies
1 13 (100.00%) Agile Software Development
1 13 (100.00%) Continuous Delivery
1 13 (100.00%) E-Commerce
1 13 (100.00%) High Availability
1 13 (100.00%) Kanban
1 13 (100.00%) Refactoring
1 13 (100.00%) Scrum
1 13 (100.00%) TDD
2 11 (84.62%) SOA
3 2 (15.38%) DevOps
3 2 (15.38%) Mentoring
3 2 (15.38%) Test Automation
Programming Languages
1 13 (100.00%) Perl
1 13 (100.00%) Scala
1 13 (100.00%) SQL
2 11 (84.62%) Java
2 11 (84.62%) Ruby
3 3 (23.08%) JavaScript