Period
to 17 November 2017

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 17 November 2017 with a comparison to the same period in the previous 2 years.

Dense Wave Division Multiplexing (DWDM)
East of England > Hertfordshire
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 198 211 233
Rank change year-on-year +13 +22 -1
Permanent jobs citing DWDM 19 4 7
As % of all permanent IT jobs advertised in Hertfordshire 0.43% 0.089% 0.13%
As % of the Communications & Networking category 2.04% 0.49% 0.66%
Number of salaries quoted 16 4 7
Hertfordshire median annual salary £67,500 £35,500 £34,000
Median salary % change year-on-year +90.14% +4.41% +58.14%
10th Percentile £48,125 £25,375 £31,700
90th Percentile £71,875 £51,850 £55,250
East of England median annual salary £67,500 £45,000 £49,000
% change year-on-year +50.00% -8.16% -2.00%

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 930 818 1060
As % of all permanent IT jobs advertised in Hertfordshire 21.18% 18.26% 19.68%
Number of salaries quoted 777 643 763
Hertfordshire median annual salary £45,000 £45,000 £45,000
10th Percentile £25,000 £23,050 £26,250
90th Percentile £68,300 £65,000 £63,750
East of England median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% -

DWDM
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for DWDM in Hertfordshire

DWDM
Salary Trend in Hertfordshire

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

Salary trend for DWDM in Hertfordshire

DWDM
Salary Histogram in Hertfordshire

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

Salary histogram for DWDM in Hertfordshire

DWDM
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing DWDM within the Hertfordshire 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
Watford -6 2 £45,000 -8.16%
Welwyn Garden City - 2 - - 1
Stevenage - 1 - -
DWDM
East of 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 Hertfordshire region with a requirement for DWDM.

1 17 (89.47%) LAN
1 17 (89.47%) VPN
1 17 (89.47%) Cisco
1 17 (89.47%) OSPF
1 17 (89.47%) BGP
1 17 (89.47%) NetScaler
2 16 (84.21%) GLBP
2 16 (84.21%) F5
2 16 (84.21%) Data Centre
2 16 (84.21%) Palo Alto
2 16 (84.21%) Arista
2 16 (84.21%) EIGRP
2 16 (84.21%) IGRP
2 16 (84.21%) Citrix
2 16 (84.21%) CheckPoint
2 16 (84.21%) Firewall
2 16 (84.21%) WAN
2 16 (84.21%) HTTP
2 16 (84.21%) HTML
2 16 (84.21%) XML
2 16 (84.21%) MPLS
2 16 (84.21%) Cisco IOS
2 16 (84.21%) Cisco ASA
3 15 (78.95%) Fortinet
3 15 (78.95%) VMware
4 14 (73.68%) E-Commerce
4 14 (73.68%) Analytical Skills
5 4 (21.05%) Network Security
6 3 (15.79%) DHCP
6 3 (15.79%) CCNP

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 2 (10.53%) Akamai
Communications & Networking
1 17 (89.47%) BGP
1 17 (89.47%) LAN
1 17 (89.47%) NetScaler
1 17 (89.47%) OSPF
1 17 (89.47%) VPN
2 16 (84.21%) Cisco ASA
2 16 (84.21%) Cisco IOS
2 16 (84.21%) EIGRP
2 16 (84.21%) Firewall
2 16 (84.21%) GLBP
2 16 (84.21%) HTTP
2 16 (84.21%) IGRP
2 16 (84.21%) MPLS
2 16 (84.21%) WAN
3 4 (21.05%) Network Security
4 3 (15.79%) DHCP
4 3 (15.79%) DNS
4 3 (15.79%) Multicast
5 2 (10.53%) DMVPN
5 2 (10.53%) HTTPS
Development Applications
1 2 (10.53%) Git (software)
General
1 2 (10.53%) Electronics
1 2 (10.53%) Finance
1 2 (10.53%) Manufacturing
1 2 (10.53%) Telecoms
Job Titles
1 12 (63.16%) Network Engineer
1 12 (63.16%) Senior Network Engineer
2 2 (10.53%) Architect
2 2 (10.53%) Design Engineer
2 2 (10.53%) Network Architect
2 2 (10.53%) Network Security Architect
2 2 (10.53%) Network Systems Engineer
2 2 (10.53%) RF Design Engineer
2 2 (10.53%) RF Engineer
2 2 (10.53%) Security Architect
2 2 (10.53%) Senior Systems Engineer
2 2 (10.53%) Systems Engineer
3 1 (5.26%) Technical Leader
3 1 (5.26%) Technical Team Leader
Libraries, Frameworks & Software Standards
1 16 (84.21%) HTML
1 16 (84.21%) XML
2 2 (10.53%) 802.1X
Miscellaneous
1 16 (84.21%) Data Centre
2 14 (73.68%) Analytical Skills
3 2 (10.53%) Optoelectronics
3 2 (10.53%) Public Cloud
Operating Systems
1 2 (10.53%) Linux
1 2 (10.53%) Unix
Processes & Methodologies
1 14 (73.68%) E-Commerce
2 3 (15.79%) Network Management
3 2 (10.53%) DevOps
3 2 (10.53%) Load Balancing
3 2 (10.53%) Mentoring
3 2 (10.53%) Multi-Factor Authentication
3 2 (10.53%) Physics
3 2 (10.53%) Software Engineering
3 2 (10.53%) The Twelve-Factor App
3 2 (10.53%) Two-Factor Authentication
3 2 (10.53%) WAN Optimisation
4 1 (5.26%) Migration
4 1 (5.26%) Service Delivery
4 1 (5.26%) Target Operating Model
Programming Languages
1 2 (10.53%) PowerShell
1 2 (10.53%) Python
Qualifications
1 3 (15.79%) CCNP
1 3 (15.79%) Cisco Certification
2 2 (10.53%) Degree
3 1 (5.26%) CCDP
3 1 (5.26%) DV Cleared
3 1 (5.26%) JNCIS
3 1 (5.26%) SC Cleared
3 1 (5.26%) Security Cleared
System Software
1 2 (10.53%) VMware NSX
2 1 (5.26%) Active Directory
2 1 (5.26%) VMware ESXi
2 1 (5.26%) VMware Infrastructure
Systems Management
1 2 (10.53%) Opscode Chef
1 2 (10.53%) Puppet
1 2 (10.53%) vCenter Server
1 2 (10.53%) vRealize
Vendors
1 17 (89.47%) Cisco
2 16 (84.21%) Arista
2 16 (84.21%) CheckPoint
2 16 (84.21%) Citrix
2 16 (84.21%) F5
2 16 (84.21%) Palo Alto
3 15 (78.95%) Fortinet
3 15 (78.95%) VMware
4 3 (15.79%) Juniper
5 2 (10.53%) Aruba
5 2 (10.53%) Blue Coat
5 2 (10.53%) Meraki
5 2 (10.53%) Riverbed
5 2 (10.53%) Tufin
6 1 (5.26%) Brocade
6 1 (5.26%) Fujitsu