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 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 672 880 967
Rank change year-on-year +208 +87 +173
Permanent jobs citing DWDM 20 16 22
As % of all permanent jobs advertised in the UK 0.038% 0.016% 0.021%
As % of the Communications & Networking category 0.29% 0.12% 0.14%
Number of salaries quoted 15 15 7
10th Percentile £44,000 £44,750 -
25th Percentile £71,250 £50,000 -
Median annual salary (50th Percentile) £80,000 £82,500 £42,000
Median % change year-on-year -3.03% +96.43% -23.64%
75th Percentile £85,000 £87,500 £51,500
90th Percentile £87,400 - £57,000
UK excluding London median annual salary £80,000 £50,000 £45,000
% change year-on-year +60.00% +11.11% -

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 6,964 13,635 16,044
As % of all permanent jobs advertised in the UK 13.38% 13.84% 15.44%
Number of salaries quoted 4,270 9,518 8,181
10th Percentile £23,731 £26,250 £27,750
25th Percentile £30,063 £32,500 £36,000
Median annual salary (50th Percentile) £47,500 £47,875 £50,250
Median % change year-on-year -0.78% -4.73% -4.29%
75th Percentile £67,500 £63,750 £71,250
90th Percentile £85,000 £77,715 £87,500
UK excluding London median annual salary £40,000 £43,625 £45,000
% change year-on-year -8.31% -3.06% -

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 1 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 1 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 +178 20 £80,000 -3.03% 86
UK excluding London +216 14 £80,000 +60.00% 81
Work from Home +197 6 £85,000 +6.25% 81
South East +114 6 £82,500 +3.13% 24
North of England +90 6 £72,500 - 16
Yorkshire +81 6 £72,500 - 7
London +107 5 £85,000 - 13
East of England +58 2 £80,000 - 12

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 (30.00%) Microsoft Office
1 6 (30.00%) MS Visio
Cloud Services
1 6 (30.00%) AWS
1 6 (30.00%) Azure
Communications & Networking
1 18 (90.00%) WAN
2 15 (75.00%) LAN
3 13 (65.00%) MPLS
4 12 (60.00%) DNS
5 11 (55.00%) Firewall
6 9 (45.00%) BGP
6 9 (45.00%) OSPF
7 8 (40.00%) VPN
8 7 (35.00%) Multicast
8 7 (35.00%) Network Security
8 7 (35.00%) Wireless
9 6 (30.00%) 802.11
9 6 (30.00%) Cisco ISE
9 6 (30.00%) Cisco Nexus
9 6 (30.00%) DHCP
9 6 (30.00%) GLBP
9 6 (30.00%) IGRP
9 6 (30.00%) TCP/IP
9 6 (30.00%) WLAN
10 4 (20.00%) Ethernet
Development Applications
1 6 (30.00%) Sonatype Nexus
2 3 (15.00%) JIRA
General
1 9 (45.00%) Social Skills
2 2 (10.00%) Analytical Skills
2 2 (10.00%) Telecoms
3 1 (5.00%) Retail
Job Titles
1 11 (55.00%) Network Engineer
2 6 (30.00%) Azure Consultant
2 6 (30.00%) Cisco Consultant
2 6 (30.00%) Cisco Network Consultant
2 6 (30.00%) Consultant
2 6 (30.00%) Juniper Consultant
2 6 (30.00%) Network Consultant
3 4 (20.00%) Full-Stack Engineer
4 2 (10.00%) Automation Engineer
4 2 (10.00%) Lead
4 2 (10.00%) NOC Engineer
4 2 (10.00%) Operations Engineer
5 1 (5.00%) Core Network Engineer
5 1 (5.00%) IP Engineer
5 1 (5.00%) IP Network Engineer
5 1 (5.00%) Lead Network Engineer
5 1 (5.00%) Python Engineer
5 1 (5.00%) Senior Core Network Engineer
5 1 (5.00%) Senior IP Engineer
5 1 (5.00%) Senior IP Network Engineer
Libraries, Frameworks & Software Standards
1 6 (30.00%) 802.1X
Miscellaneous
1 2 (10.00%) Self-Motivation
2 1 (5.00%) Data Centre
Processes & Methodologies
1 10 (50.00%) Problem-Solving
2 7 (35.00%) Computer Science
3 6 (30.00%) Cloud Security
3 6 (30.00%) Full-Stack Development
3 6 (30.00%) Mentoring
3 6 (30.00%) Migration
3 6 (30.00%) Network Architecture
3 6 (30.00%) Network Management
3 6 (30.00%) Roadmaps
3 6 (30.00%) Runbook
3 6 (30.00%) Task Automation
3 6 (30.00%) Technical Leadership
3 6 (30.00%) Technology Roadmap
3 6 (30.00%) Vulnerability Assessment
3 6 (30.00%) WAN Optimisation
4 4 (20.00%) ITIL
5 2 (10.00%) Agile
5 2 (10.00%) Collaborative Working
5 2 (10.00%) Continuous Improvement
5 2 (10.00%) Project Management
Programming Languages
1 8 (40.00%) Python
Qualifications
1 8 (40.00%) CCNP
1 8 (40.00%) Cisco Certification
2 7 (35.00%) Computer Science Degree
2 7 (35.00%) Degree
3 6 (30.00%) CCNA
3 6 (30.00%) JNCIA
3 6 (30.00%) JNCIS
4 1 (5.00%) CCIE
Quality Assurance & Compliance
1 1 (5.00%) PCI DSS
System Software
1 1 (5.00%) VMware Infrastructure
1 1 (5.00%) VMware NSX
Systems Management
1 8 (40.00%) Ansible
2 6 (30.00%) Terraform
3 1 (5.00%) Grafana
3 1 (5.00%) ZABBIX
Vendors
1 13 (65.00%) Cisco
2 12 (60.00%) Arista
2 12 (60.00%) Microsoft
3 7 (35.00%) Juniper
4 6 (30.00%) Riverbed
5 4 (20.00%) Nokia
6 2 (10.00%) Dell
6 2 (10.00%) Splunk
7 1 (5.00%) Extreme Networks
7 1 (5.00%) ServiceNow
7 1 (5.00%) VMware