The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for GSM skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited GSM over the 3 months to 27 March 2017 with a comparison to the same period in the previous 2 years.

Global System for Mobile Communications (GSM)
England / London
3 months to
27 Mar 2017
Same period 2016 Same period 2015
Rank 561 638 638
Rank change year-on-year +77 0  
Permanent jobs citing GSM 15 15 24
As % of all permanent IT jobs advertised in London 0.045% 0.036% 0.056%
As % of the Communications & Networking category 0.28% 0.23% 0.31%
Number of salaries quoted 15 11 23
Median salary £65,000 £60,000 £65,000
Median salary % change year-on-year +8.33% -7.69%  
90% offered a salary of more than £60,000 £45,000 £46,000
10% offered a salary of more than £67,500 £75,000 £100,000
UK excluding London median salary £40,000 £40,000 £42,500
% change year-on-year - -5.88%  

GSM is in the communications and computer networking 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 communications and computer networking skills.

Communications & Computer Network Skills
London
Permanent job vacancies with a requirement for communications and computer networking skills 5264 6618 7703
As % of all permanent IT job vacancies advertised in London 15.73% 15.77% 17.97%
Number of salaries quoted 4449 5583 6436
Median salary £52,500 £51,000 £51,500
Median salary % change year-on-year +2.94% -0.97%  
90% offered a salary of more than £30,922 £31,000 £30,000
10% offered a salary of more than £75,000 £75,000 £72,500
UK excluding London median salary £40,000 £42,500 £41,500
% change year-on-year -5.88% +2.40%  

GSM
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing GSM as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for GSM in London

GSM
Salary Trend in London

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

Salary trend for GSM in London

GSM
Salary Histogram in London

The salary distribution of IT jobs citing GSM in London over the 3 months to 27 March 2017.

Salary histogram for GSM in London

GSM
Top 30 Co-occurring IT Skills in London

For the 6 months to 27 March 2017, IT jobs citing GSM 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 GSM.

1 37 (90.24%) Telecoms
2 36 (87.80%) C
2 36 (87.80%) C++
3 35 (85.37%) Linux
3 35 (85.37%) 3G
3 35 (85.37%) VMware
3 35 (85.37%) Multithreading
3 35 (85.37%) VMware Infrastructure
3 35 (85.37%) Puppet
3 35 (85.37%) 4G
3 35 (85.37%) Opscode Chef
3 35 (85.37%) OpenFlow
3 35 (85.37%) KVM
3 35 (85.37%) Ansible
4 34 (82.93%) Boost C++ Libraries
5 28 (68.29%) Translating Business Requirements
6 15 (36.59%) TCP/IP
7 11 (26.83%) Software Engineering
8 7 (17.07%) Finance
8 7 (17.07%) Banking
9 6 (14.63%) C#
10 4 (9.76%) Degree
11 2 (4.88%) Polycom
11 2 (4.88%) AirWatch
11 2 (4.88%) Mobile Payment
11 2 (4.88%) Skype for Business
11 2 (4.88%) Application Packaging
11 2 (4.88%) NFC
11 2 (4.88%) SCCM
11 2 (4.88%) Cryptography

GSM
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 2 (4.88%) Skype for Business
Communications & Networking
1 35 (85.37%) 3G
1 35 (85.37%) 4G
1 35 (85.37%) OpenFlow
2 15 (36.59%) TCP/IP
3 2 (4.88%) NFC
3 2 (4.88%) UMTS
3 2 (4.88%) Wi-Fi
4 1 (2.44%) GPRS
4 1 (2.44%) Wireless
General
1 37 (90.24%) Telecoms
2 7 (17.07%) Banking
2 7 (17.07%) Finance
3 2 (4.88%) Electronics
4 1 (2.44%) Marketing
Job Titles
1 27 (65.85%) C++ Developer
1 27 (65.85%) Developer
2 15 (36.59%) Linux Developer
3 14 (34.15%) Lead Developer
4 13 (31.71%) Telecoms Developer
5 10 (24.39%) Senior C++ Developer
5 10 (24.39%) Senior Developer
6 9 (21.95%) C Developer
6 9 (21.95%) C/C++ Developer
7 8 (19.51%) C++ Software Engineer
7 8 (19.51%) Senior C++ Software Engineer
7 8 (19.51%) Senior Software Engineer
7 8 (19.51%) Software Engineer
8 5 (12.20%) Senior C Developer
9 4 (9.76%) Principal Developer
10 2 (4.88%) Mac Engineer
11 1 (2.44%) Chief Technology Officer
11 1 (2.44%) Principal Engineer
11 1 (2.44%) Security Project Manager
11 1 (2.44%) Senior Architect
Libraries, Frameworks & Software Standards
1 34 (82.93%) Boost C++ Libraries
Miscellaneous
1 2 (4.88%) Mobile Payment
1 2 (4.88%) Smartcard
Operating Systems
1 35 (85.37%) Linux
2 2 (4.88%) Windows
2 2 (4.88%) Windows 10
Processes & Methodologies
1 35 (85.37%) Multithreading
2 28 (68.29%) Translating Business Requirements
3 11 (26.83%) Software Engineering
4 2 (4.88%) Application Packaging
4 2 (4.88%) Cryptography
4 2 (4.88%) Incident Management
5 1 (2.44%) PRINCE
5 1 (2.44%) PRINCE2
5 1 (2.44%) Validation
Programming Languages
1 36 (87.80%) C
1 36 (87.80%) C++
2 6 (14.63%) C#
3 1 (2.44%) Python
Qualifications
1 4 (9.76%) Degree
2 1 (2.44%) MBA
System Software
1 35 (85.37%) KVM
1 35 (85.37%) VMware Infrastructure
2 2 (4.88%) Firmware
Systems Management
1 35 (85.37%) Ansible
1 35 (85.37%) Opscode Chef
1 35 (85.37%) Puppet
2 2 (4.88%) AirWatch
2 2 (4.88%) SCCM
Vendors
1 35 (85.37%) VMware
2 2 (4.88%) Cognizant
2 2 (4.88%) Polycom
3 1 (2.44%) EMC
Croydon
Computer Futures
Salary: £40000 - £60000 per annum + competitive benefits package
Posted: 25 days ago
Croydon
Computer Futures
Salary: £50000 - £65000 per annum + competitive benefits package
Posted: 25 days ago
London Bridge with flexibility across sites
GSM London
Salary: £0 - £37,000 per year
Posted: 20 days ago