Period
to 3 April 2020

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire 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 3 April 2020 with a comparison to the same period in the previous 2 years.

Dense Wave Division Multiplexing (DWDM)
East of England > Hertfordshire
6 months to
3 Apr 2020
Same period 2019 Same period 2018
Rank 138 - 194
Rank change year-on-year - +194 +9
Permanent jobs citing DWDM 1 0 38
As % of all permanent jobs advertised in Hertfordshire 0.052% - 0.76%
As % of the Communications & Networking category 0.24% - 3.71%
Number of salaries quoted 1 0 25
Median annual salary £67,500 - £67,500
10th Percentile £63,750 - £50,500
90th Percentile £71,250 - £71,250
East of England median annual salary £38,750 £32,500 £67,500
% change year-on-year +19.23% -51.85% +42.11%

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 Hertfordshire with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
Hertfordshire
Permanent vacancies with a requirement for communications or computer networking skills 424 693 1,023
As % of all permanent IT jobs advertised in Hertfordshire 22.16% 21.69% 20.52%
Number of salaries quoted 339 537 826
Median annual salary £42,500 £45,000 £49,250
Median salary % change year-on-year -5.56% -8.63% +13.22%
10th Percentile £25,500 £25,500 £23,625
90th Percentile £65,000 £67,500 £71,250
East of England median annual salary £42,500 £42,500 £45,000
% change year-on-year - -5.56% -

DWDM
Job Vacancy Trend in Hertfordshire

Job postings citing DWDM as a proportion of all IT jobs advertised in Hertfordshire.

Job vacancy trend for DWDM in Hertfordshire

DWDM
Salary Trend in Hertfordshire

3-month moving average salary quoted in jobs citing DWDM in Hertfordshire.

Salary trend for DWDM in Hertfordshire

For the 6 months to 3 April 2020, IT jobs citing DWDM also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Hertfordshire region with a requirement for DWDM.

1 1 (100.00%) HTML
1 1 (100.00%) XML
1 1 (100.00%) Unix
1 1 (100.00%) Linux
1 1 (100.00%) Python
1 1 (100.00%) LAN
1 1 (100.00%) WAN
1 1 (100.00%) DHCP
1 1 (100.00%) HTTP
1 1 (100.00%) SNMP
1 1 (100.00%) VPN
1 1 (100.00%) DNS
1 1 (100.00%) HTTPS
1 1 (100.00%) SSL
1 1 (100.00%) Cisco
1 1 (100.00%) CCNP
1 1 (100.00%) Citrix
1 1 (100.00%) Cisco Certification
1 1 (100.00%) Juniper
1 1 (100.00%) CheckPoint
1 1 (100.00%) Internet
1 1 (100.00%) 802.11
1 1 (100.00%) MPLS
1 1 (100.00%) OSPF
1 1 (100.00%) BGP
1 1 (100.00%) EIGRP
1 1 (100.00%) IGRP
1 1 (100.00%) Firewall
1 1 (100.00%) Wi-Fi
1 1 (100.00%) IPsec

DWDM
Co-occurring IT Skills in Hertfordshire 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 (100.00%) Akamai
Communications & Networking
1 1 (100.00%) 802.11
1 1 (100.00%) BGP
1 1 (100.00%) Cisco IOS
1 1 (100.00%) DHCP
1 1 (100.00%) DNS
1 1 (100.00%) EIGRP
1 1 (100.00%) Firewall
1 1 (100.00%) HTTP
1 1 (100.00%) HTTPS
1 1 (100.00%) IGRP
1 1 (100.00%) Internet
1 1 (100.00%) IPsec
1 1 (100.00%) LAN
1 1 (100.00%) MPLS
1 1 (100.00%) OSPF
1 1 (100.00%) SNMP
1 1 (100.00%) SSL
1 1 (100.00%) VPN
1 1 (100.00%) WAN
1 1 (100.00%) Wi-Fi
Development Applications
1 1 (100.00%) Git (software)
General
1 1 (100.00%) Finance
Job Titles
1 1 (100.00%) Network Engineer
1 1 (100.00%) Network Security Engineer
1 1 (100.00%) Security Engineer
Libraries, Frameworks & Software Standards
1 1 (100.00%) 802.1X
1 1 (100.00%) HTML
1 1 (100.00%) XML
Miscellaneous
1 1 (100.00%) Analytical Skills
Operating Systems
1 1 (100.00%) Linux
1 1 (100.00%) Unix
Processes & Methodologies
1 1 (100.00%) DevOps
1 1 (100.00%) Load Balancing
1 1 (100.00%) Mentoring
1 1 (100.00%) Multi-Factor Authentication
1 1 (100.00%) Network Management
1 1 (100.00%) Technical Leadership
1 1 (100.00%) Technology Roadmap
1 1 (100.00%) Two-Factor Authentication
1 1 (100.00%) WAN Optimisation
Programming Languages
1 1 (100.00%) PowerShell
1 1 (100.00%) Python
Qualifications
1 1 (100.00%) CCNP
1 1 (100.00%) Cisco Certification
System Software
1 1 (100.00%) VMware NSX
Systems Management
1 1 (100.00%) Opscode Chef
1 1 (100.00%) Puppet
1 1 (100.00%) vCenter Server
1 1 (100.00%) vRealize
Vendors
1 1 (100.00%) Arista
1 1 (100.00%) Aruba
1 1 (100.00%) Blue Coat
1 1 (100.00%) CheckPoint
1 1 (100.00%) Cisco
1 1 (100.00%) Citrix
1 1 (100.00%) F5
1 1 (100.00%) Fortinet
1 1 (100.00%) Juniper
1 1 (100.00%) Meraki
1 1 (100.00%) Palo Alto
1 1 (100.00%) Riverbed
1 1 (100.00%) Tufin
1 1 (100.00%) VMware
1 1 (100.00%) Zscaler