Period
to 23 November 2017

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for SDH skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited SDH over the 6 months to 23 November 2017 with a comparison to the same period in the previous 2 years.

Synchronous Digital Hierarchy (SDH)
Central London > City of London
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 320 346 407
Rank change year-on-year +26 +61 +59
Permanent jobs citing SDH 1 2 1
As % of all permanent IT jobs advertised in the City of London 0.010% 0.017% 0.006%
As % of the Communications & Networking category 0.067% 0.11% 0.041%
Number of salaries quoted 1 2 1
City of London median annual salary £43,000 £41,500 £60,000
Median salary % change year-on-year +3.61% -30.83% +4.35%
10th Percentile £41,500 £39,750 £57,500
90th Percentile £44,500 £43,250 £62,500
Central London median annual salary £43,000 £41,500 £60,000
% change year-on-year +3.61% -30.83% +9.09%

SDH is in the Communications and Computer Networking category. The following 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 communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Permanent vacancies with a requirement for communications or computer networking skills 1501 1783 2430
As % of all permanent IT jobs advertised in the City of London 14.68% 15.31% 14.30%
Number of salaries quoted 1345 1562 2085
City of London median annual salary £52,500 £55,000 £52,500
Median salary % change year-on-year -4.55% +4.76% +7.14%
10th Percentile £31,250 £30,750 £27,500
90th Percentile £80,000 £78,750 £78,750
Central London median annual salary £51,000 £52,500 £50,000
% change year-on-year -2.86% +5.00% +2.04%

SDH
Job Vacancy Trend in the City of London

Job postings citing SDH as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for SDH in the City of London

SDH
Salary Trend in the City of London

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

Salary trend for SDH in the City of London

For the 6 months to 23 November 2017, IT jobs citing SDH 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 SDH.

1 1 (100.00%) DNA
1 1 (100.00%) Ethernet
1 1 (100.00%) Cisco
1 1 (100.00%) Juniper
1 1 (100.00%) Alcatel-Lucent
1 1 (100.00%) SONET
1 1 (100.00%) DWDM
1 1 (100.00%) Telecoms
1 1 (100.00%) Huawei
1 1 (100.00%) Ciena
1 1 (100.00%) Performance Measurement

SDH
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:

Communications & Networking
1 1 (100.00%) DWDM
1 1 (100.00%) Ethernet
1 1 (100.00%) SONET
General
1 1 (100.00%) Telecoms
Processes & Methodologies
1 1 (100.00%) DNA
1 1 (100.00%) Performance Measurement
Vendors
1 1 (100.00%) Alcatel-Lucent
1 1 (100.00%) Ciena
1 1 (100.00%) Cisco
1 1 (100.00%) Huawei
1 1 (100.00%) Juniper