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 23 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Dense Wave Division Multiplexing (DWDM)
East of England / Hertfordshire
Rank 132 - 137
Rank change year-on-year - 0  
Permanent jobs citing DWDM 8 0 15
As % of all permanent IT jobs advertised in Hertfordshire 0.37% - 0.65%
As % of the Communications & Networking category 2.23% - 2.67%
Number of salaries quoted 1 0 6
Median salary £50,000 - £32,500
UK excluding London median salary £45,000 £52,500 £41,500
% change year-on-year -14.28% +26.50%  

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 359 579 562
As % of all permanent IT job vacancies advertised in Hertfordshire 16.64% 22.79% 24.49%
Number of salaries quoted 254 458 419
Median salary £45,000 £40,000 £42,500
Median salary % change year-on-year +12.50% -5.88%  
90% offered a salary of more than £24,500 £25,000 £24,000
10% offered a salary of more than £60,000 £62,500 £65,000
UK excluding London median salary £40,000 £42,500 £41,000
% change year-on-year -5.88% +3.65%  

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
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 3 months to 23 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford - 8 £50,000 -
DWDM
East of England

DWDM
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 23 March 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 10 (90.91%) WAN
2 9 (81.82%) Cisco
2 9 (81.82%) Cisco Certification
3 8 (72.73%) MPLS
3 8 (72.73%) VSS/SourceSafe
3 8 (72.73%) LAN
3 8 (72.73%) Frame Relay
3 8 (72.73%) Migration
3 8 (72.73%) FWSM
4 7 (63.64%) Continuous Improvement
4 7 (63.64%) Degree
4 7 (63.64%) CCIE
4 7 (63.64%) CCNP
5 6 (54.55%) NetScaler
5 6 (54.55%) Riverbed
6 5 (45.45%) DMVPN
6 5 (45.45%) Multicast
6 5 (45.45%) Spanning Tree
6 5 (45.45%) BGP
6 5 (45.45%) EIGRP
6 5 (45.45%) Network Design
7 4 (36.36%) Brocade
7 4 (36.36%) Cisco IOS
7 4 (36.36%) Firewall
7 4 (36.36%) Wireless
7 4 (36.36%) Juniper
7 4 (36.36%) CheckPoint
7 4 (36.36%) IOS XR
7 4 (36.36%) FabricPath
7 4 (36.36%) Cisco Nexus

DWDM
Top Related 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 10 (90.91%) WAN
2 8 (72.73%) Frame Relay
2 8 (72.73%) FWSM
2 8 (72.73%) LAN
2 8 (72.73%) MPLS
3 6 (54.55%) NetScaler
4 5 (45.45%) BGP
4 5 (45.45%) DMVPN
4 5 (45.45%) EIGRP
4 5 (45.45%) Multicast
4 5 (45.45%) Spanning Tree
5 4 (36.36%) Cisco IOS
5 4 (36.36%) Cisco ISE
5 4 (36.36%) Cisco Nexus
5 4 (36.36%) FabricPath
5 4 (36.36%) FCoE
5 4 (36.36%) Fibre Channel
5 4 (36.36%) Firewall
5 4 (36.36%) IOS XR
5 4 (36.36%) Wireless
Development Applications
1 8 (72.73%) VSS/SourceSafe
General
1 2 (18.18%) Telecoms
2 1 (9.09%) Electronics
Job Titles
1 4 (36.36%) Network Engineer
2 2 (18.18%) 2nd Line Engineer
3 1 (9.09%) Design Engineer
3 1 (9.09%) IT Engineer
3 1 (9.09%) Network Operations Engineer
3 1 (9.09%) Operations Engineer
3 1 (9.09%) RF Design Engineer
3 1 (9.09%) RF Engineer
Processes & Methodologies
1 8 (72.73%) Migration
2 7 (63.64%) Continuous Improvement
3 5 (45.45%) Network Design
4 1 (9.09%) Change Management
4 1 (9.09%) Fault Management
4 1 (9.09%) Physics
4 1 (9.09%) Statistics
Qualifications
1 9 (81.82%) Cisco Certification
2 7 (63.64%) CCIE
2 7 (63.64%) CCNP
2 7 (63.64%) Degree
3 2 (18.18%) CCNA
Quality Assurance & Compliance
1 2 (18.18%) SLA
Vendors
1 9 (81.82%) Cisco
2 6 (54.55%) Riverbed
3 4 (36.36%) Brocade
3 4 (36.36%) CheckPoint
3 4 (36.36%) F5
3 4 (36.36%) Juniper
4 1 (9.09%) Avaya