Period
to 4 December 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for IPv4 skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited IPv4 over the 6 months to 4 December 2021 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Internet Protocol version 4 (IPv4)
Central London > City of London
6 months to
4 Dec 2021
Same period 2020 Same period 2019
Rank 175 121 218
Rank change year-on-year -54 +97 +29
Contract jobs citing IPv4 6 1 1
As % of all contract jobs advertised in the City of London 0.15% 0.050% 0.017%
As % of the Communications & Networking category 1.60% 0.39% 0.16%
Number of daily rates quoted 5 1 0
Median daily rate (50th Percentile) £450 £500 -
Median % change year-on-year -10.00% - -
Central London median daily rate £450 £500 £425
% change year-on-year -10.00% +17.65% -5.56%

IPv4 is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Contract vacancies with a requirement for communications or computer networking skills 376 255 620
As % of all contract IT jobs advertised in the City of London 9.35% 12.81% 10.74%
Number of daily rates quoted 304 206 474
10th Percentile £302 £250 £195
25th Percentile £430 £375 £319
Median daily rate (50th Percentile) £525 £500 £450
Median % change year-on-year +5.00% +11.11% +5.88%
75th Percentile £610 £570 £575
90th Percentile £688 £638 £675
Central London median daily rate £525 £500 £450
% change year-on-year +5.00% +11.11% +5.88%
Number of hourly rates quoted 6 5 12
10th Percentile £17.00 £22.70 £12.20
25th Percentile £21.00 " £15.88
Median hourly rate £22.25 £23.00 £19.10
Median % change year-on-year -3.26% +20.42% +2.14%
75th Percentile £34.25 £38.25 £21.25
90th Percentile £37.75 £52.35 £26.50
Central London median hourly rate £22.25 £23.00 £20.00
% change year-on-year -3.26% +15.00% +6.78%

IPv4
Job Vacancy Trend in the City of London

Job postings citing IPv4 as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for IPv4 in the City of London

IPv4
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing IPv4 in the City of London.

Daily rate trend for IPv4 in the City of London

IPv4
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing IPv4 in the City of London over the 6 months to 4 December 2021.

Daily rate histogram for IPv4 in the City of London

For the 6 months to 4 December 2021, IT contractor jobs citing IPv4 also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for IPv4.

1 5 (83.33%) Microsoft
1 5 (83.33%) IPv6
1 5 (83.33%) Firewall
1 5 (83.33%) Load Balancing
1 5 (83.33%) Data Centre
2 4 (66.67%) Scrum
2 4 (66.67%) Agile Software Development
2 4 (66.67%) Linux
3 3 (50.00%) CentOS
3 3 (50.00%) Software Deployment
3 3 (50.00%) Migration
4 2 (33.33%) VMware Infrastructure
4 2 (33.33%) Puppet
4 2 (33.33%) Degree
4 2 (33.33%) Finance
4 2 (33.33%) Azure
4 2 (33.33%) DHCP
4 2 (33.33%) DNS
4 2 (33.33%) VMware
5 1 (16.67%) TDD
5 1 (16.67%) Banking
5 1 (16.67%) Asset Management
5 1 (16.67%) UPnP
5 1 (16.67%) Software Engineering
5 1 (16.67%) ITSM
5 1 (16.67%) Wi-Fi
5 1 (16.67%) Wireless
5 1 (16.67%) IPsec
5 1 (16.67%) Active Directory
5 1 (16.67%) Shell Script

IPv4
Co-occurring IT Skills in the City of London 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:

Applications
1 1 (16.67%) Microsoft Excel
1 1 (16.67%) Microsoft Office
Cloud Services
1 2 (33.33%) Azure
2 1 (16.67%) AWS
2 1 (16.67%) SaaS
Communications & Networking
1 5 (83.33%) Firewall
1 5 (83.33%) IPv6
2 2 (33.33%) DHCP
2 2 (33.33%) DNS
3 1 (16.67%) Broadband
3 1 (16.67%) DECT
3 1 (16.67%) IPsec
3 1 (16.67%) LAN
3 1 (16.67%) Multicast
3 1 (16.67%) PPP
3 1 (16.67%) SD-WAN
3 1 (16.67%) Software-Defined Networking
3 1 (16.67%) SSL
3 1 (16.67%) UPnP
3 1 (16.67%) VPN
3 1 (16.67%) WAN
3 1 (16.67%) Wi-Fi
3 1 (16.67%) Wireless
3 1 (16.67%) WLAN
Development Applications
1 1 (16.67%) GDB
1 1 (16.67%) Git (software)
1 1 (16.67%) GitLab
1 1 (16.67%) JIRA
General
1 2 (33.33%) Finance
2 1 (16.67%) Banking
2 1 (16.67%) Legal
Job Titles
1 3 (50.00%) Linux Engineer
2 1 (16.67%) Analyst
2 1 (16.67%) Engineering Specialist
2 1 (16.67%) Network Analyst
2 1 (16.67%) Network Operations Analyst
2 1 (16.67%) Operations Analyst
2 1 (16.67%) Systems Engineer
2 1 (16.67%) Windows Engineer
2 1 (16.67%) Windows Systems Engineer
Miscellaneous
1 5 (83.33%) Data Centre
2 1 (16.67%) Distributed Denial-of-Service
2 1 (16.67%) Embedded Systems
Operating Systems
1 4 (66.67%) Linux
2 3 (50.00%) CentOS
3 1 (16.67%) OpenWrt
3 1 (16.67%) Unix
3 1 (16.67%) Windows
3 1 (16.67%) Windows Server
Processes & Methodologies
1 5 (83.33%) Load Balancing
2 4 (66.67%) Agile Software Development
2 4 (66.67%) Scrum
3 3 (50.00%) Migration
3 3 (50.00%) Software Deployment
4 1 (16.67%) Asset Management
4 1 (16.67%) Computer Science
4 1 (16.67%) Continuous Deployment
4 1 (16.67%) Continuous Integration
4 1 (16.67%) Data Modelling
4 1 (16.67%) Decision-Making
4 1 (16.67%) Issue Tracking
4 1 (16.67%) ITIL
4 1 (16.67%) ITSM
4 1 (16.67%) Performance Monitoring
4 1 (16.67%) Proactive Monitoring
4 1 (16.67%) Problem-Solving
4 1 (16.67%) Service Management
4 1 (16.67%) Software Engineering
4 1 (16.67%) TDD
Programming Languages
1 1 (16.67%) Bash Shell
1 1 (16.67%) C
1 1 (16.67%) PowerShell
1 1 (16.67%) Python
1 1 (16.67%) Shell Script
Qualifications
1 2 (33.33%) Degree
2 1 (16.67%) Computer Science Degree
2 1 (16.67%) ITIL Foundation Certificate
Quality Assurance & Compliance
1 1 (16.67%) JTAG
System Software
1 2 (33.33%) VMware Infrastructure
2 1 (16.67%) Active Directory
2 1 (16.67%) VMware ESXi
2 1 (16.67%) VMware NSX
2 1 (16.67%) vSphere
Systems Management
1 2 (33.33%) Puppet
2 1 (16.67%) SCCM
2 1 (16.67%) SCOM
Vendors
1 5 (83.33%) Microsoft
2 2 (33.33%) VMware
3 1 (16.67%) Cisco
3 1 (16.67%) Infoblox