Dense Wave Division Multiplexing (DWDM)
UK

The table below provides summary statistics for permanent job vacancies requiring DWDM skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited DWDM over the 6 months leading up to 11 May 2025, comparing them to the same period in the previous two years.

6 months to
11 May 2025
Same period 2024 Same period 2023
Rank 689 881 961
Rank change year-on-year +192 +80 +173
Permanent jobs citing DWDM 17 17 20
As % of all permanent jobs advertised in the UK 0.031% 0.017% 0.020%
As % of the Communications & Networking category 0.21% 0.13% 0.13%
Number of salaries quoted 12 16 5
10th Percentile £42,875 £45,625 -
25th Percentile £65,000 £50,000 -
Median annual salary (50th Percentile) £82,500 £81,250 £42,000
Median % change year-on-year +1.54% +93.45% -23.64%
75th Percentile £85,563 £87,500 £48,000
90th Percentile £87,475 - £55,200
UK excluding London median annual salary £80,000 £50,000 £45,000
% change year-on-year +60.00% +11.11% -14.29%

All Communications and Computer Networking Skills
UK

DWDM falls under the Communications and Computer Networking category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring communications or computer networking skills.

Permanent vacancies with a requirement for communications or computer networking skills 8,011 13,516 15,741
As % of all permanent jobs advertised in the UK 14.64% 13.62% 15.58%
Number of salaries quoted 4,348 9,426 8,007
10th Percentile £23,731 £26,250 £27,750
25th Percentile £29,750 £32,500 £35,750
Median annual salary (50th Percentile) £45,074 £47,500 £50,000
Median % change year-on-year -5.11% -5.00% -4.76%
75th Percentile £66,250 £63,750 £71,250
90th Percentile £85,000 £77,715 £87,500
UK excluding London median annual salary £40,000 £43,750 £45,000
% change year-on-year -8.57% -2.78% -3.23%

DWDM
Job Vacancy Trend

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

Job vacancy trend for DWDM in the UK

DWDM
Salary Trend

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

Salary trend for DWDM in the UK

DWDM
Salary Histogram

Salary distribution for jobs citing DWDM over the 6 months to 11 May 2025.

Salary histogram for DWDM in the UK

DWDM
Top 8 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing DWDM within the UK over the 6 months to 11 May 2025. 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
Jobs
England +159 17 £82,500 +1.54% 21
UK excluding London +191 13 £80,000 +60.00% 13
South East +105 6 £82,500 +3.13% 10
Yorkshire +72 6 £72,500 - 1
North of England +68 6 £72,500 - 1
Work from Home +156 5 £85,000 +6.25% 11
London +105 3 £85,000 - 9
East of England +40 1 £80,000 -

DWDM
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Applications
1 6 (35.29%) Microsoft Office
1 6 (35.29%) MS Visio
Cloud Services
1 4 (23.53%) AWS
1 4 (23.53%) Azure
Communications & Networking
1 15 (88.24%) WAN
2 13 (76.47%) LAN
3 11 (64.71%) Firewall
4 10 (58.82%) DNS
4 10 (58.82%) MPLS
5 8 (47.06%) VPN
6 7 (41.18%) Network Security
7 6 (35.29%) BGP
7 6 (35.29%) Cisco Nexus
7 6 (35.29%) OSPF
7 6 (35.29%) TCP/IP
8 5 (29.41%) Wireless
9 4 (23.53%) 802.11
9 4 (23.53%) Cisco ISE
9 4 (23.53%) DHCP
9 4 (23.53%) Ethernet
9 4 (23.53%) GLBP
9 4 (23.53%) GPON
9 4 (23.53%) IGRP
9 4 (23.53%) WLAN
Development Applications
1 6 (35.29%) Sonatype Nexus
2 3 (17.65%) JIRA
General
1 9 (52.94%) Social Skills
2 2 (11.76%) Analytical Skills
2 2 (11.76%) Telecoms
3 1 (5.88%) Retail
Job Titles
1 10 (58.82%) Network Engineer
2 4 (23.53%) Azure Consultant
2 4 (23.53%) Cisco Consultant
2 4 (23.53%) Cisco Network Consultant
2 4 (23.53%) Consultant
2 4 (23.53%) Full-Stack Engineer
2 4 (23.53%) Juniper Consultant
2 4 (23.53%) Network Consultant
3 2 (11.76%) Automation Engineer
3 2 (11.76%) Lead
3 2 (11.76%) NOC Engineer
3 2 (11.76%) Operations Engineer
4 1 (5.88%) Lead Network Engineer
4 1 (5.88%) Python Engineer
Libraries, Frameworks & Software Standards
1 4 (23.53%) 802.1X
Miscellaneous
1 2 (11.76%) Self-Motivation
2 1 (5.88%) Data Centre
Processes & Methodologies
1 10 (58.82%) Problem-Solving
2 7 (41.18%) Computer Science
3 6 (35.29%) Full-Stack Development
3 6 (35.29%) Mentoring
3 6 (35.29%) Migration
3 6 (35.29%) Network Architecture
3 6 (35.29%) Runbook
3 6 (35.29%) Task Automation
3 6 (35.29%) Technical Leadership
3 6 (35.29%) Vulnerability Assessment
4 4 (23.53%) Cloud Security
4 4 (23.53%) ITIL
4 4 (23.53%) Network Management
4 4 (23.53%) Roadmaps
4 4 (23.53%) Technology Roadmap
4 4 (23.53%) WAN Optimisation
5 2 (11.76%) Continuous Improvement
5 2 (11.76%) Load Balancing
5 2 (11.76%) Mathematics
5 2 (11.76%) Project Management
Programming Languages
1 8 (47.06%) Python
Qualifications
1 8 (47.06%) CCNP
1 8 (47.06%) Cisco Certification
2 7 (41.18%) Computer Science Degree
2 7 (41.18%) Degree
3 6 (35.29%) CCNA
3 6 (35.29%) JNCIA
3 6 (35.29%) JNCIS
4 1 (5.88%) CCIE
Quality Assurance & Compliance
1 1 (5.88%) PCI DSS
System Software
1 1 (5.88%) VMware Infrastructure
1 1 (5.88%) VMware NSX
Systems Management
1 8 (47.06%) Ansible
2 6 (35.29%) Terraform
3 1 (5.88%) Grafana
3 1 (5.88%) ZABBIX
Vendors
1 11 (64.71%) Cisco
2 10 (58.82%) Arista
2 10 (58.82%) Microsoft
3 4 (23.53%) Juniper
3 4 (23.53%) Riverbed
4 3 (17.65%) Nokia
5 2 (11.76%) Dell
5 2 (11.76%) Splunk
6 1 (5.88%) ServiceNow
6 1 (5.88%) VMware