The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Tcl skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Tcl over the 3 months to 22 June 2017 with a comparison to the same period in the previous 2 years.

Tool Command Language (Tcl)
London / City of London
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 234 258 312
Rank change year-on-year +24 +54  
Permanent jobs citing Tcl 3 1 6
As % of all permanent IT jobs advertised in the City of London 0.058% 0.016% 0.058%
As % of the Programming Languages category 0.10% 0.027% 0.11%
Number of salaries quoted 2 1 6
Median salary £63,750 £49,000 £52,750
Median salary % change year-on-year +30.10% -7.10%  
90% offered a salary of more than £50,750 £49,000 £45,750
10% offered a salary of more than £76,750 £49,000 £63,750
UK excluding London median salary £45,000 £50,000 £50,000
% change year-on-year -10.00% -  

Tcl is in the programming language skills category. The next 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 programming language skills.

Programming Language Skills
City of London
Permanent job vacancies with a requirement for programming language skills 2940 3664 5381
As % of all permanent IT job vacancies advertised in the City of London 56.61% 57.44% 51.81%
Number of salaries quoted 2643 3359 4763
Median salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.34% +4.54%  
90% offered a salary of more than £40,000 £40,000 £37,500
10% offered a salary of more than £90,000 £80,000 £80,000
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year +3.65% +2.50%  

Tcl
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Tcl as a proportion of all permanent or contract IT jobs with a match in the Programming Languages category.

Job vacancy trend for Tcl in the City of London

Tcl
Salary Trend in the City of London

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

Salary trend for Tcl in the City of London

Tcl
Salary Histogram in the City of London

The salary distribution of IT jobs citing Tcl in the City of London over the 3 months to 22 June 2017.

Salary histogram for Tcl in the City of London

For the 6 months to 22 June 2017, IT jobs citing Tcl 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 City of London region with a requirement for Tcl.

1 2 (66.67%) Linux
1 2 (66.67%) SQL
1 2 (66.67%) Java
1 2 (66.67%) XML
1 2 (66.67%) Unix
2 1 (33.33%) Windows
2 1 (33.33%) ITIL
2 1 (33.33%) Perl
2 1 (33.33%) Oracle
2 1 (33.33%) Microsoft Office
2 1 (33.33%) Web Services
2 1 (33.33%) Python
2 1 (33.33%) Microsoft
2 1 (33.33%) ITIL Certification
2 1 (33.33%) NHS
2 1 (33.33%) BizTalk Server
2 1 (33.33%) Middleware
2 1 (33.33%) 3G
2 1 (33.33%) Front Office
2 1 (33.33%) Telecoms
2 1 (33.33%) Finance
2 1 (33.33%) ION Trading
2 1 (33.33%) Billing
2 1 (33.33%) Ruby
2 1 (33.33%) HL7
2 1 (33.33%) System Testing
2 1 (33.33%) 4G
2 1 (33.33%) Rational Rhapsody
2 1 (33.33%) Enterprise Software
2 1 (33.33%) WebSphere Cast Iron

Tcl
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 1 (33.33%) BizTalk Server
Applications
1 1 (33.33%) Microsoft Office
Communications & Networking
1 1 (33.33%) 3G
1 1 (33.33%) 4G
Development Applications
1 1 (33.33%) Rational Rhapsody
General
1 1 (33.33%) Billing
1 1 (33.33%) Finance
1 1 (33.33%) Front Office
1 1 (33.33%) Telecoms
Job Titles
1 1 (33.33%) Analyst
1 1 (33.33%) Developer
1 1 (33.33%) Integration Specialist
1 1 (33.33%) Senior Analyst
Libraries, Frameworks & Software Standards
1 2 (66.67%) XML
2 1 (33.33%) Middleware
2 1 (33.33%) Web Services
Miscellaneous
1 1 (33.33%) Enterprise Software
1 1 (33.33%) NHS
Operating Systems
1 2 (66.67%) Linux
1 2 (66.67%) Unix
2 1 (33.33%) Windows
Processes & Methodologies
1 1 (33.33%) ITIL
1 1 (33.33%) System Testing
Programming Languages
1 2 (66.67%) Java
1 2 (66.67%) SQL
2 1 (33.33%) Perl
2 1 (33.33%) Python
2 1 (33.33%) Ruby
Qualifications
1 1 (33.33%) ITIL Certification
Quality Assurance & Compliance
1 1 (33.33%) HL7
Systems Management
1 1 (33.33%) WebSphere Cast Iron
Vendors
1 1 (33.33%) ION Trading
1 1 (33.33%) Microsoft
1 1 (33.33%) Oracle