The following table provides summary statistics for contract job vacancies advertised in London with a requirement for OpenGL skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited OpenGL over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

OpenGL
England / London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 403 419 413
Rank change year-on-year +16 -6  
Contract jobs citing OpenGL 9 9 9
As % of all contract IT jobs advertised in London 0.044% 0.042% 0.038%
As % of the Libraries, Frameworks & Software Standards category 0.12% 0.13% 0.12%
Number of daily rates quoted 8 8 7
Median daily rate £475 £500 £450
Median daily rate % change year-on-year -5.00% +11.11%  
90% offered a daily rate of more than £350 £500 £350
10% offered a daily rate of more than £506 £533 £575
UK excluding London median daily rate £403 £350 £325
% change year-on-year +15.21% +7.69%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £47.50 £41.25 £40.00
% change year-on-year +15.15% +3.12%  

OpenGL 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 contract job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 7322 7035 7321
As % of all contract IT job vacancies advertised in London 35.82% 32.46% 31.29%
Number of daily rates quoted 5438 5395 5313
Median daily rate £480 £450 £425
Median daily rate % change year-on-year +6.66% +5.88%  
90% offered a daily rate of more than £350 £325 £310
10% offered a daily rate of more than £600 £600 £575
UK excluding London median daily rate £398 £375 £350
% change year-on-year +6.00% +7.14%  
Number of hourly rates quoted 50 25 50
Median hourly rate £35.00 £40.00 £22.50
Median hourly rate % change year-on-year -12.50% +77.77%  
90% offered a hourly rate of more than £16.00 £20.00 £16.13
10% offered a hourly rate of more than £55.00 £190.00 £60.00
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

OpenGL
Job Vacancy Trend in London

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

Job vacancy trend for OpenGL in London

OpenGL
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing OpenGL in London.

Contractor daily rate trend for OpenGL in London

OpenGL
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing OpenGL in London over the 3 months to 24 June 2017.

Contractor daily rate histogram for OpenGL in London

OpenGL
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing OpenGL in London.

Contractor hourly rate trend for OpenGL in London

For the 6 months to 24 June 2017, IT contractor jobs citing OpenGL also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for OpenGL.

1 21 (95.45%) C++
2 15 (68.18%) Linux
3 13 (59.09%) Open Source
4 11 (50.00%) Agile Software Development
4 11 (50.00%) TDD
4 11 (50.00%) Pair Programming
4 11 (50.00%) Qt
5 10 (45.45%) Continuous Improvement
5 10 (45.45%) QA
6 9 (40.91%) Degree
7 6 (27.27%) Software Engineering
7 6 (27.27%) C
7 6 (27.27%) Android
8 5 (22.73%) Augmented Reality
8 5 (22.73%) Embedded Systems
8 5 (22.73%) Embedded Software Development
8 5 (22.73%) OpenGL ES
8 5 (22.73%) Android Development
8 5 (22.73%) GLSL
8 5 (22.73%) Electronics
8 5 (22.73%) Software Testing
9 4 (18.18%) Internet
10 3 (13.64%) Multithreading
10 3 (13.64%) Apple iOS
10 3 (13.64%) Tizen
10 3 (13.64%) Computer Vision
10 3 (13.64%) Windows
10 3 (13.64%) Java
11 2 (9.09%) Performance Optimisation
11 2 (9.09%) iOS Development

OpenGL
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:

Cloud Services
1 1 (4.55%) Google Play
Communications & Networking
1 4 (18.18%) Internet
Development Applications
1 1 (4.55%) Bugzilla
1 1 (4.55%) Git (software)
1 1 (4.55%) JIRA
1 1 (4.55%) Visual Studio
General
1 5 (22.73%) Electronics
Job Titles
1 17 (77.27%) Developer
2 12 (54.55%) C++ Developer
3 5 (22.73%) Agile Developer
4 4 (18.18%) Android Developer
4 4 (18.18%) C++ GUI Developer
4 4 (18.18%) GUI Developer
5 3 (13.64%) Android Engineer
5 3 (13.64%) Qt Developer
5 3 (13.64%) Software Developer
6 2 (9.09%) C++ Software Developer
6 2 (9.09%) Graphics Developer
6 2 (9.09%) Software Engineer
7 1 (4.55%) Android Software Engineer
7 1 (4.55%) Computer Engineer
7 1 (4.55%) Computer Vision Engineer
7 1 (4.55%) iOS Developer
7 1 (4.55%) iOS Software Engineer
7 1 (4.55%) Senior C++ Developer
7 1 (4.55%) Senior Software Developer
7 1 (4.55%) UI Developer
Libraries, Frameworks & Software Standards
1 11 (50.00%) Qt
2 5 (22.73%) OpenGL ES
3 2 (9.09%) OpenCV
4 1 (4.55%) Android NDK
4 1 (4.55%) DirectX
4 1 (4.55%) JNI
4 1 (4.55%) OpenCL
4 1 (4.55%) Unreal Engine
Miscellaneous
1 5 (22.73%) Augmented Reality
1 5 (22.73%) Embedded Systems
2 1 (4.55%) 3D Graphics
2 1 (4.55%) BBC
Operating Systems
1 15 (68.18%) Linux
2 6 (27.27%) Android
3 3 (13.64%) Apple iOS
3 3 (13.64%) Tizen
3 3 (13.64%) Windows
Processes & Methodologies
1 13 (59.09%) Open Source
2 11 (50.00%) Agile Software Development
2 11 (50.00%) Pair Programming
2 11 (50.00%) TDD
3 10 (45.45%) Continuous Improvement
4 6 (27.27%) Software Engineering
5 5 (22.73%) Android Development
5 5 (22.73%) Embedded Software Development
5 5 (22.73%) Software Testing
6 3 (13.64%) Computer Vision
6 3 (13.64%) Multithreading
7 2 (9.09%) iOS Development
7 2 (9.09%) Multithreaded Programming
7 2 (9.09%) Performance Optimisation
8 1 (4.55%) 3D Modelling
8 1 (4.55%) Image Processing
8 1 (4.55%) OO
Programming Languages
1 21 (95.45%) C++
2 6 (27.27%) C
3 5 (22.73%) GLSL
4 3 (13.64%) Java
5 2 (9.09%) Objective-C
6 1 (4.55%) Lua
6 1 (4.55%) Python
Qualifications
1 9 (40.91%) Degree
Quality Assurance & Compliance
1 10 (45.45%) QA
Vendors
1 1 (4.55%) Google