The following table provides summary statistics for contract job vacancies advertised in London with a requirement for DWDM skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited DWDM over the 3 months to 29 April 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.

Dense Wave Division Multiplexing (DWDM)
England / London
3 months to
29 Apr 2017
Same period 2016 Same period 2015
Rank 399 436 421
Rank change year-on-year +37 -15  
Contract jobs citing DWDM 15 2 3
As % of all contract IT jobs advertised in London 0.073% 0.009% 0.013%
As % of the Communications & Networking category 0.63% 0.068% 0.10%
Number of daily rates quoted 10 0 2
Median daily rate £450 - £318
90% offered a daily rate of more than £200 - £284
10% offered a daily rate of more than £550 - £352
UK excluding London median daily rate £238 £363 £538
% change year-on-year -34.48% -32.55%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £52.50
UK excluding London median hourly rate £26.45 - -

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

Contract Communications & Computer Network Skills
London
Contract job vacancies with a requirement for communications and computer networking skills 2374 2945 2978
As % of all contract IT job vacancies advertised in London 11.53% 12.79% 13.27%
Number of daily rates quoted 1574 2039 1899
Median daily rate £450 £425 £375
Median daily rate % change year-on-year +5.88% +13.33%  
90% offered a daily rate of more than £250 £250 £225
10% offered a daily rate of more than £575 £556 £550
UK excluding London median daily rate £388 £365 £340
% change year-on-year +6.16% +7.35%  
Number of hourly rates quoted 68 44 83
Median hourly rate £25.00 £22.00 £23.50
Median hourly rate % change year-on-year +13.63% -6.38%  
90% offered a hourly rate of more than £17.00 £12.50 £13.46
10% offered a hourly rate of more than £50.00 £30.00 £50.00
UK excluding London median hourly rate £25.00 £30.00 £30.00
% change year-on-year -16.66% -  

DWDM
Job Vacancy Trend in London

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

Job vacancy trend for DWDM in London

DWDM
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for DWDM in London

DWDM
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing DWDM in London over the 3 months to 29 April 2017.

Contractor daily rate histogram for DWDM in London

DWDM
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for DWDM in London

For the 6 months to 29 April 2017, IT contractor jobs citing DWDM 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 DWDM.

1 12 (54.55%) Cisco
2 10 (45.45%) MPLS
2 10 (45.45%) Telecoms
3 8 (36.36%) SDH
3 8 (36.36%) WAN
4 7 (31.82%) LAN
4 7 (31.82%) Firewall
5 6 (27.27%) OSPF
5 6 (27.27%) BGP
5 6 (27.27%) Ethernet
5 6 (27.27%) VPN
5 6 (27.27%) Finance
5 6 (27.27%) Wireless
6 5 (22.73%) Juniper
6 5 (22.73%) TCP/IP
6 5 (22.73%) EIGRP
6 5 (22.73%) CheckPoint
6 5 (22.73%) Multicast
6 5 (22.73%) 802.1X
7 4 (18.18%) Cisco ISE
7 4 (18.18%) Ciena
7 4 (18.18%) Data Centre
7 4 (18.18%) Linux
7 4 (18.18%) Cisco Certification
7 4 (18.18%) Citrix
7 4 (18.18%) DNS
7 4 (18.18%) Huawei
7 4 (18.18%) Network Management
7 4 (18.18%) Cisco Nexus
8 3 (13.64%) HSRP

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:

Cloud Services
1 2 (9.09%) IaaS
1 2 (9.09%) SaaS
Communications & Networking
1 10 (45.45%) MPLS
2 8 (36.36%) SDH
2 8 (36.36%) WAN
3 7 (31.82%) Firewall
3 7 (31.82%) LAN
4 6 (27.27%) BGP
4 6 (27.27%) Ethernet
4 6 (27.27%) OSPF
4 6 (27.27%) VPN
4 6 (27.27%) Wireless
5 5 (22.73%) EIGRP
5 5 (22.73%) Multicast
5 5 (22.73%) TCP/IP
6 4 (18.18%) Cisco ISE
6 4 (18.18%) Cisco Nexus
6 4 (18.18%) DNS
7 3 (13.64%) DHCP
7 3 (13.64%) SAN
7 3 (13.64%) VoIP
7 3 (13.64%) WLAN
Database & Business Intelligence
1 2 (9.09%) SQL Server
Development Applications
1 2 (9.09%) Sonatype Nexus
General
1 10 (45.45%) Telecoms
2 6 (27.27%) Finance
3 3 (13.64%) Banking
4 2 (9.09%) Financial Institution
4 2 (9.09%) Investment Banking
Job Titles
1 6 (27.27%) Network Engineer
2 4 (18.18%) Design Engineer
2 4 (18.18%) Network Support
2 4 (18.18%) Optical Engineer
3 3 (13.64%) Architect
3 3 (13.64%) Cisco Engineer
3 3 (13.64%) Cisco Network Engineer
3 3 (13.64%) IP Engineer
3 3 (13.64%) Network Support Engineer
3 3 (13.64%) Operations Engineer
3 3 (13.64%) Support Engineer
4 2 (9.09%) Data Centre Architect
4 2 (9.09%) Designer
4 2 (9.09%) Installations Engineer
4 2 (9.09%) Technical Architect
4 2 (9.09%) Telecoms Engineer
5 1 (4.55%) Cisco Security Engineer
5 1 (4.55%) Cisco Support Engineer
5 1 (4.55%) Delivery Manager
5 1 (4.55%) Enterprise Architect
Libraries, Frameworks & Software Standards
1 5 (22.73%) 802.1X
2 2 (9.09%) XMPP
Miscellaneous
1 4 (18.18%) Data Centre
2 3 (13.64%) RSA SecurID
3 2 (9.09%) Analytical Skills
3 2 (9.09%) Distributed Denial-of-Service
Operating Systems
1 4 (18.18%) Linux
2 3 (13.64%) Red Hat Enterprise Linux
2 3 (13.64%) Windows
3 1 (4.55%) Mac OS X
3 1 (4.55%) Unix
Processes & Methodologies
1 4 (18.18%) Network Management
2 3 (13.64%) Disaster Recovery
2 3 (13.64%) Fault Management
2 3 (13.64%) High Availability
2 3 (13.64%) Identity Management
2 3 (13.64%) ITIL
2 3 (13.64%) Open Source
2 3 (13.64%) Validation
3 2 (9.09%) Change Management
3 2 (9.09%) DDoS Mitigation
3 2 (9.09%) Multi-Factor Authentication
3 2 (9.09%) PRINCE2
3 2 (9.09%) Project Management
3 2 (9.09%) Two-Factor Authentication
4 1 (4.55%) Continuous Improvement
4 1 (4.55%) Investment Management
4 1 (4.55%) IT Strategy
4 1 (4.55%) Low Latency
4 1 (4.55%) Network Design
4 1 (4.55%) Service Management
Programming Languages
1 2 (9.09%) Perl
Qualifications
1 4 (18.18%) Cisco Certification
2 3 (13.64%) CCIE
2 3 (13.64%) CCNP
2 3 (13.64%) SC Cleared
2 3 (13.64%) Security Cleared
3 2 (9.09%) JNCIE
4 1 (4.55%) CCNA
4 1 (4.55%) CCSA
4 1 (4.55%) CISSP
4 1 (4.55%) JNCIP
System Software
1 3 (13.64%) VMware Infrastructure
Systems Management
1 3 (13.64%) EMC VPLEX
2 2 (9.09%) Cacti
2 2 (9.09%) Nagios
2 2 (9.09%) Opscode Chef
2 2 (9.09%) Pingdom
2 2 (9.09%) Puppet
2 2 (9.09%) WhatsUp Gold
2 2 (9.09%) ZABBIX
3 1 (4.55%) Cisco UCCE
3 1 (4.55%) Cisco UCCX
Vendors
1 12 (54.55%) Cisco
2 5 (22.73%) CheckPoint
2 5 (22.73%) Juniper
3 4 (18.18%) Ciena
3 4 (18.18%) Citrix
3 4 (18.18%) Huawei
4 3 (13.64%) EMC
4 3 (13.64%) Nortel
4 3 (13.64%) Red Hat
4 3 (13.64%) Salesforce.com
4 3 (13.64%) Tellabs
4 3 (13.64%) VMware
5 2 (9.09%) Cramer
5 2 (9.09%) MetaSolv
5 2 (9.09%) NetScout
5 2 (9.09%) Oracle
5 2 (9.09%) Splunk
6 1 (4.55%) Arista
6 1 (4.55%) F5
6 1 (4.55%) Palo Alto