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 3 months to 25 June 2017 with a comparison to the same period in the previous 2 years.

Dense Wave Division Multiplexing (DWDM)
East of England / Hertfordshire
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 139 140 167
Rank change year-on-year +1 +27  
Permanent jobs citing DWDM 10 4 8
As % of all permanent IT jobs advertised in Hertfordshire 0.48% 0.18% 0.28%
As % of the Communications & Networking category 2.60% 0.89% 1.11%
Number of salaries quoted 10 4 8
Median salary £68,750 £40,000 £34,000
Median salary % change year-on-year +71.87% +17.64%  
UK excluding London median salary £45,000 £45,000 £47,500
% change year-on-year - -5.26%  

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 permanent job vacancies advertised in Hertfordshire with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
Hertfordshire
Permanent job vacancies with a requirement for communications and computer networking skills 385 451 720
As % of all permanent IT job vacancies advertised in Hertfordshire 18.49% 19.87% 25.03%
Number of salaries quoted 321 353 496
Median salary £50,000 £44,500 £43,000
Median salary % change year-on-year +12.35% +3.48%  
90% offered a salary of more than £26,000 £26,000 £27,500
10% offered a salary of more than £70,000 £60,000 £60,000
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

DWDM
Job Vacancy Trend in Hertfordshire

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

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 3 months to 25 June 2017.

Salary histogram for DWDM in Hertfordshire

For the 6 months to 25 June 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 18 (100.00%) LAN
1 18 (100.00%) WAN
1 18 (100.00%) Cisco
1 18 (100.00%) MPLS
2 16 (88.89%) NetScaler
3 15 (83.33%) BGP
3 15 (83.33%) EIGRP
4 14 (77.78%) CheckPoint
4 14 (77.78%) Firewall
4 14 (77.78%) F5
4 14 (77.78%) Cisco IOS
5 10 (55.56%) Cisco ASA
5 10 (55.56%) GLBP
5 10 (55.56%) Data Centre
5 10 (55.56%) Palo Alto
5 10 (55.56%) Arista
5 10 (55.56%) Fortinet
5 10 (55.56%) OSPF
5 10 (55.56%) IGRP
5 10 (55.56%) Citrix
5 10 (55.56%) HTTP
5 10 (55.56%) VPN
5 10 (55.56%) HTML
5 10 (55.56%) XML
5 10 (55.56%) E-Commerce
6 8 (44.44%) Frame Relay
6 8 (44.44%) Migration
6 8 (44.44%) VSS/SourceSafe
6 8 (44.44%) FWSM
7 7 (38.89%) Continuous Improvement

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:

Communications & Networking
1 18 (100.00%) LAN
1 18 (100.00%) MPLS
1 18 (100.00%) WAN
2 16 (88.89%) NetScaler
3 15 (83.33%) BGP
3 15 (83.33%) EIGRP
4 14 (77.78%) Cisco IOS
4 14 (77.78%) Firewall
5 10 (55.56%) Cisco ASA
5 10 (55.56%) GLBP
5 10 (55.56%) HTTP
5 10 (55.56%) IGRP
5 10 (55.56%) OSPF
5 10 (55.56%) VPN
6 8 (44.44%) Frame Relay
6 8 (44.44%) FWSM
7 5 (27.78%) DMVPN
7 5 (27.78%) Multicast
7 5 (27.78%) Network Security
7 5 (27.78%) Spanning Tree
Development Applications
1 8 (44.44%) VSS/SourceSafe
Job Titles
1 9 (50.00%) Network Engineer
2 5 (27.78%) Architect
2 5 (27.78%) Network Architect
2 5 (27.78%) Network Security Architect
2 5 (27.78%) Security Architect
2 5 (27.78%) Senior Network Engineer
3 1 (5.56%) Network Operations Engineer
3 1 (5.56%) Operations Engineer
Libraries, Frameworks & Software Standards
1 10 (55.56%) HTML
1 10 (55.56%) XML
Miscellaneous
1 10 (55.56%) Data Centre
2 5 (27.78%) Analytical Skills
Processes & Methodologies
1 10 (55.56%) E-Commerce
2 8 (44.44%) Migration
3 7 (38.89%) Continuous Improvement
4 5 (27.78%) Network Design
Qualifications
1 7 (38.89%) CCIE
1 7 (38.89%) CCNP
1 7 (38.89%) Cisco Certification
1 7 (38.89%) Degree
Vendors
1 18 (100.00%) Cisco
2 14 (77.78%) CheckPoint
2 14 (77.78%) F5
3 10 (55.56%) Arista
3 10 (55.56%) Citrix
3 10 (55.56%) Fortinet
3 10 (55.56%) Palo Alto
4 6 (33.33%) Riverbed
5 5 (27.78%) VMware
6 4 (22.22%) Brocade
6 4 (22.22%) Juniper
Welwyn Garden City
Tesco PLC
Salary: Competitive
Posted: 11 days ago
Welwyn Garden City
Tesco PLC
Salary: Competitive
Posted: 11 days ago