Period
to 17 November 2017

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for DWDM skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited DWDM over the 6 months to 17 November 2017 with a comparison to the same period in the previous 2 years.

Dense Wave Division Multiplexing (DWDM)
England > London
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 786 826 887
Rank change year-on-year +40 +61 -21
Permanent jobs citing DWDM 54 31 41
As % of all permanent IT jobs advertised in London 0.072% 0.041% 0.046%
As % of the Communications & Networking category 0.49% 0.26% 0.29%
Number of salaries quoted 25 21 22
London median annual salary £52,500 £52,500 £47,500
Median salary % change year-on-year - +10.53% -19.49%
10th Percentile £33,300 £40,000 £34,075
90th Percentile £77,500 £70,000 £90,000
England median annual salary £52,500 £45,000 £50,000
% change year-on-year +16.67% -10.00% -11.50%

DWDM 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 London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
London
Permanent vacancies with a requirement for communications or computer networking skills 10944 12127 14270
As % of all permanent IT jobs advertised in London 14.49% 15.94% 15.96%
Number of salaries quoted 8923 10378 12092
London median annual salary £54,500 £53,000 £50,000
Median salary % change year-on-year +2.83% +6.00% -
10th Percentile £30,000 £30,000 £27,500
90th Percentile £80,000 £80,000 £78,750
England median annual salary £45,000 £45,000 £45,000

DWDM
Job Vacancy Trend in London

Job postings citing DWDM as a percentage of all IT jobs advertised in London.

Job vacancy trend for DWDM in London

DWDM
Salary Trend in London

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

Salary trend for DWDM in London

DWDM
Salary Histogram in London

The salary distribution of IT jobs citing DWDM in London over the 6 months to 17 November 2017.

Salary histogram for DWDM in London

DWDM
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing DWDM within the London region over the 6 months to 17 November 2017. 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
Job
Vacancies
East London +1 2 - - 1
Central London - 2 £43,000 -
DWDM
England

For the 6 months to 17 November 2017, IT jobs citing DWDM 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 DWDM.

1 36 (66.67%) Finance
2 31 (57.41%) Data Centre
3 29 (53.70%) VPN
4 26 (48.15%) LAN
4 26 (48.15%) WAN
4 26 (48.15%) MPLS
4 26 (48.15%) Statistics
5 24 (44.44%) Firewall
5 24 (44.44%) Wireless
6 23 (42.59%) Palo Alto
7 22 (40.74%) Telecoms
7 22 (40.74%) Cisco Certification
7 22 (40.74%) CCNP
8 20 (37.04%) CCIE
8 20 (37.04%) CheckPoint
8 20 (37.04%) Network Security
8 20 (37.04%) Video Conferencing
8 20 (37.04%) Unified Communications
8 20 (37.04%) Network Virtualisation
9 16 (29.63%) SDH
10 14 (25.93%) Ethernet
10 14 (25.93%) Cisco
11 9 (16.67%) Network Design
11 9 (16.67%) Degree
12 8 (14.81%) SONET
12 8 (14.81%) C
13 7 (12.96%) GIS
14 6 (11.11%) ESRI
14 6 (11.11%) Smallworld
14 6 (11.11%) Mapinfo

DWDM
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 6 (11.11%) Smallworld
Applications
1 2 (3.70%) Microsoft Excel
2 1 (1.85%) Microsoft Office
2 1 (1.85%) Microsoft PowerPoint
Cloud Services
1 4 (7.41%) Amazon AWS
2 1 (1.85%) Microsoft Azure
2 1 (1.85%) Virtual Private Cloud
Communications & Networking
1 29 (53.70%) VPN
2 26 (48.15%) LAN
2 26 (48.15%) MPLS
2 26 (48.15%) WAN
3 24 (44.44%) Firewall
3 24 (44.44%) Wireless
4 20 (37.04%) Network Security
4 20 (37.04%) Unified Communications
5 16 (29.63%) SDH
6 14 (25.93%) Ethernet
7 8 (14.81%) SONET
8 6 (11.11%) GPON
9 5 (9.26%) BGP
9 5 (9.26%) OSPF
10 4 (7.41%) IPsec
10 4 (7.41%) Multicast
11 3 (5.56%) Anycast
11 3 (5.56%) DHCP
11 3 (5.56%) DNS
11 3 (5.56%) SSL
Database & Business Intelligence
1 7 (12.96%) GIS
Development Applications
1 3 (5.56%) Git (software)
2 1 (1.85%) VSS/SourceSafe
General
1 36 (66.67%) Finance
2 22 (40.74%) Telecoms
3 3 (5.56%) French Language
4 2 (3.70%) Marketing
Job Titles
1 16 (29.63%) Engineering Manager
2 14 (25.93%) Communications Manager
3 8 (14.81%) Network Engineer
4 6 (11.11%) Infrastructure Manager
4 6 (11.11%) Operations Manager
4 6 (11.11%) Planning Manager
5 5 (9.26%) Data Centre Engineer
5 5 (9.26%) Unix Engineer
6 4 (7.41%) Technical Manager
6 4 (7.41%) Technical Operations Manager
7 3 (5.56%) Network Engineering Manager
7 3 (5.56%) Network Manager
7 3 (5.56%) Network Operations Manager
7 3 (5.56%) Network Security Manager
7 3 (5.56%) Network Support
7 3 (5.56%) Operational Security Manager
7 3 (5.56%) Product Manager
7 3 (5.56%) Security Manager
7 3 (5.56%) Security Operations Manager
7 3 (5.56%) Telecoms Manager
Libraries, Frameworks & Software Standards
1 4 (7.41%) 802.1X
2 3 (5.56%) JSON
2 3 (5.56%) REST
Miscellaneous
1 31 (57.41%) Data Centre
2 20 (37.04%) Video Conferencing
3 6 (11.11%) Computer Science
3 6 (11.11%) Hedge funds
4 3 (5.56%) Tandem
5 1 (1.85%) CCTV
5 1 (1.85%) FlexPod
5 1 (1.85%) PKI
5 1 (1.85%) Video\Live Streaming
5 1 (1.85%) Virtual Team
Operating Systems
1 6 (11.11%) Linux
1 6 (11.11%) Unix
1 6 (11.11%) Windows
Processes & Methodologies
1 26 (48.15%) Statistics
2 20 (37.04%) Network Virtualisation
3 9 (16.67%) Network Design
4 6 (11.11%) Network Planning
4 6 (11.11%) Performance Management
4 6 (11.11%) Proprietary Trading
5 5 (9.26%) Product Management
6 4 (7.41%) DNA
6 4 (7.41%) Network Monitoring
6 4 (7.41%) Performance Measurement
7 3 (5.56%) Anomaly Detection
7 3 (5.56%) Load Balancing
7 3 (5.56%) Network Architecture
7 3 (5.56%) Network Management
7 3 (5.56%) Performance Tuning
8 2 (3.70%) Project Management
9 1 (1.85%) Migration
9 1 (1.85%) PRINCE2
9 1 (1.85%) Product Marketing
9 1 (1.85%) Technical Architecture
Programming Languages
1 8 (14.81%) C
2 3 (5.56%) Python
Qualifications
1 22 (40.74%) CCNP
1 22 (40.74%) Cisco Certification
2 20 (37.04%) CCIE
3 9 (16.67%) Degree
4 6 (11.11%) Computer Science Degree
5 4 (7.41%) Security Cleared
6 3 (5.56%) DV Cleared
6 3 (5.56%) SC Cleared
7 1 (1.85%) HND
7 1 (1.85%) MBA
7 1 (1.85%) NVQ Level 3
Quality Assurance & Compliance
1 6 (11.11%) ISO 9001
1 6 (11.11%) NEBOSH
1 6 (11.11%) QA
2 2 (3.70%) SLA
System Software
1 6 (11.11%) Firmware
2 3 (5.56%) KVM
3 1 (1.85%) VMware Infrastructure
Systems Management
1 3 (5.56%) OpenNebula
1 3 (5.56%) Opscode Chef
1 3 (5.56%) Puppet
Vendors
1 23 (42.59%) Palo Alto
2 20 (37.04%) CheckPoint
3 14 (25.93%) Cisco
4 6 (11.11%) Dell
4 6 (11.11%) ESRI
4 6 (11.11%) Juniper
4 6 (11.11%) Mapinfo
5 5 (9.26%) Alcatel-Lucent
5 5 (9.26%) Ciena
5 5 (9.26%) Google
5 5 (9.26%) Huawei
6 4 (7.41%) Microsoft
7 3 (5.56%) Arista
8 1 (1.85%) Nokia
8 1 (1.85%) Salesforce.com
8 1 (1.85%) SolarWinds
8 1 (1.85%) VMware