Tool Command Language (Tcl)
UK

The table below provides summary statistics for permanent job vacancies requiring Tcl skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited Tcl over the 6 months leading up to 30 April 2025, comparing them to the same period in the previous two years.

6 months to
30 Apr 2025
Same period 2024 Same period 2023
Rank 670 840 903
Rank change year-on-year +170 +63 +271
Permanent jobs citing Tcl 14 45 84
As % of all permanent jobs advertised in the UK 0.027% 0.046% 0.081%
As % of the Programming Languages category 0.089% 0.14% 0.19%
Number of salaries quoted 5 10 24
10th Percentile £45,500 £53,175 £51,250
25th Percentile £65,000 £65,000 £56,563
Median annual salary (50th Percentile) £70,000 £78,750 £65,000
Median % change year-on-year -11.11% +21.15% -
75th Percentile £75,000 £103,750 £110,000
90th Percentile £100,500 £110,000 £120,000
UK excluding London median annual salary £75,000 £80,000 £60,000
% change year-on-year -6.25% +33.33% -9.43%

All Programming Languages
UK

Tcl falls under the Programming Languages category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring coding skills.

Permanent vacancies with a requirement for coding skills 15,664 33,221 45,157
As % of all permanent jobs advertised in the UK 30.03% 33.78% 43.42%
Number of salaries quoted 11,561 25,021 28,803
10th Percentile £37,500 £35,000 £38,750
25th Percentile £47,683 £45,000 £49,500
Median annual salary (50th Percentile) £60,000 £60,000 £65,000
Median % change year-on-year - -7.69% +4.00%
75th Percentile £82,500 £77,500 £86,250
90th Percentile £106,250 £100,000 £106,250
UK excluding London median annual salary £55,000 £53,500 £55,000
% change year-on-year +2.80% -2.73% +2.33%

Tcl
Job Vacancy Trend

Job postings citing Tcl as a proportion of all IT jobs advertised.

Job vacancy trend for Tcl in the UK

Tcl
Salary Trend

3-month moving average salary quoted in jobs citing Tcl.

Salary trend for Tcl in the UK

Tcl
Salary Histogram

Salary distribution for jobs citing Tcl over the 6 months to 30 April 2025.

Salary histogram for Tcl in the UK

Tcl
Top 5 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Tcl within the UK over the 6 months to 30 April 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
UK excluding London +174 11 £75,000 -6.25% 54
England +156 11 £75,000 -6.25% 54
South West +104 9 £35,000 - 9
South East +106 1 £115,000 +43.75% 18
East of England +45 1 - - 19

Tcl
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Communications & Networking
1 1 (7.14%) SpaceWire
1 1 (7.14%) Wideband
Development Applications
1 4 (28.57%) Git
1 4 (28.57%) Subversion
General
1 9 (64.29%) Social Skills
2 8 (57.14%) Analytical Skills
2 8 (57.14%) Electronics
Job Titles
1 11 (78.57%) FPGA Engineer
2 8 (57.14%) Senior
2 8 (57.14%) Senior FPGA Engineer
2 8 (57.14%) Senior VHDL Engineer
2 8 (57.14%) VHDL Engineer
3 1 (7.14%) Electrical Engineer
3 1 (7.14%) Graduate
3 1 (7.14%) Radio Engineer
3 1 (7.14%) RF Engineer
3 1 (7.14%) Systems Engineer
3 1 (7.14%) Verification Engineer
Miscellaneous
1 12 (85.71%) FPGA
2 11 (78.57%) VHDL
3 8 (57.14%) GNSS
3 8 (57.14%) MicroBlaze
3 8 (57.14%) Satnav
4 4 (28.57%) NVMe
5 3 (21.43%) Verilog
6 1 (7.14%) ASIC
6 1 (7.14%) ASIC Verification
6 1 (7.14%) Data Centre
6 1 (7.14%) PCIe
6 1 (7.14%) Self-Motivation
Operating Systems
1 12 (85.71%) Linux
2 9 (64.29%) Windows
3 3 (21.43%) Red Hat Enterprise Linux
4 1 (7.14%) Unix
Processes & Methodologies
1 11 (78.57%) FPGA Design
2 9 (64.29%) Computer Science
2 9 (64.29%) Signal Processing
3 8 (57.14%) B2B
3 8 (57.14%) Creative Thinking
3 8 (57.14%) Defect Tracking
3 8 (57.14%) Innovative Thinking
3 8 (57.14%) Problem-Solving
3 8 (57.14%) Requirements Analysis
4 4 (28.57%) UVM
5 1 (7.14%) Agile
5 1 (7.14%) Collaborative Working
5 1 (7.14%) Data Acquisition
5 1 (7.14%) Electronic Design Automation
5 1 (7.14%) Functional Testing
5 1 (7.14%) Mathematics
5 1 (7.14%) Physics
5 1 (7.14%) System Testing
5 1 (7.14%) Technical Leadership
5 1 (7.14%) TestOps
Programming Languages
1 10 (71.43%) C
2 9 (64.29%) C++
2 9 (64.29%) Perl
3 8 (57.14%) MATLAB
3 8 (57.14%) VB
4 4 (28.57%) SystemVerilog
5 3 (21.43%) Python
6 1 (7.14%) Bash
6 1 (7.14%) Embedded C
6 1 (7.14%) Embedded C++
6 1 (7.14%) Java
6 1 (7.14%) VBA
Qualifications
1 11 (78.57%) Degree
2 3 (21.43%) SC Cleared
2 3 (21.43%) Security Cleared
3 1 (7.14%) Master's Degree
3 1 (7.14%) PhD
System Software
1 8 (57.14%) Embedded Firmware
1 8 (57.14%) Firmware
Vendors
1 9 (64.29%) Xilinx
2 8 (57.14%) Altera
2 8 (57.14%) Green Hills
3 3 (21.43%) Red Hat
4 1 (7.14%) Cadence
4 1 (7.14%) EMC
4 1 (7.14%) Siemens
4 1 (7.14%) Synopsys