The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire with a requirement for IPv4 skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited IPv4 over the 3 months to 25 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
Internet Protocol version 4 (IPv4)
East of England / Hertfordshire
Rank 138 146 151
Rank change year-on-year +8 +5  
Permanent jobs citing IPv4 4 13 7
As % of all permanent IT jobs advertised in Hertfordshire 0.18% 0.51% 0.30%
As % of the Communications & Networking category 1.10% 2.25% 1.22%
Number of salaries quoted 4 13 7
Median salary £25,000 £25,000 £45,000
Median salary % change year-on-year - -44.44%  
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year +6.25% -  

IPv4 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 362 579 574
As % of all permanent IT job vacancies advertised in Hertfordshire 16.52% 22.56% 24.76%
Number of salaries quoted 256 463 423
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%  

IPv4
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing IPv4 as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for IPv4 in Hertfordshire

IPv4
Salary Trend in Hertfordshire

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing IPv4 in Hertfordshire.

Salary trend for IPv4 in Hertfordshire

IPv4
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing IPv4 within the Hertfordshire region over the 3 months to 25 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
Hemel Hempstead -5 4 £25,000 +4.16%
IPv4
East of England

IPv4
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 25 March 2017, IT jobs citing IPv4 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 IPv4.

1 13 (81.25%) VPN
2 11 (68.75%) IPv6
2 11 (68.75%) Data Centre
3 8 (50.00%) Cognos Impromptu
4 4 (25.00%) Cisco Certification
4 4 (25.00%) MPLS
5 3 (18.75%) CCNA
5 3 (18.75%) Cisco
5 3 (18.75%) Solaris
5 3 (18.75%) Linux
5 3 (18.75%) Firewall
5 3 (18.75%) Telecoms
5 3 (18.75%) People Management
6 2 (12.50%) Internet
6 2 (12.50%) Cisco ASA
6 2 (12.50%) SCTP
6 2 (12.50%) Network Architecture
6 2 (12.50%) Network Management
6 2 (12.50%) High Availability
6 2 (12.50%) SIEM
6 2 (12.50%) Network Design
6 2 (12.50%) Load Balancing
6 2 (12.50%) Security Management
6 2 (12.50%) ATM
6 2 (12.50%) LAN
6 2 (12.50%) Ethernet
6 2 (12.50%) SNMP
6 2 (12.50%) Windows
6 2 (12.50%) OSPF
7 1 (6.25%) Configuration Management

IPv4
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 13 (81.25%) VPN
2 11 (68.75%) IPv6
3 4 (25.00%) MPLS
4 3 (18.75%) Firewall
5 2 (12.50%) ATM
5 2 (12.50%) Cisco ASA
5 2 (12.50%) Ethernet
5 2 (12.50%) Internet
5 2 (12.50%) LAN
5 2 (12.50%) OSPF
5 2 (12.50%) SCTP
5 2 (12.50%) SNMP
6 1 (6.25%) Network Security
Database & Business Intelligence
1 8 (50.00%) Cognos Impromptu
General
1 3 (18.75%) Telecoms
Job Titles
1 8 (50.00%) Data Centre Engineer
1 8 (50.00%) Data Centre Technician
1 8 (50.00%) Data Technician
2 3 (18.75%) Data Centre Manager
2 3 (18.75%) Data Centre Supervisor
2 3 (18.75%) Network Engineer
3 2 (12.50%) Cisco Engineer
3 2 (12.50%) Cisco Security Engineer
3 2 (12.50%) Design Engineer
3 2 (12.50%) Firewall Engineer
3 2 (12.50%) Network Design Engineer
3 2 (12.50%) Security Engineer
3 2 (12.50%) Telecoms Engineer
4 1 (6.25%) Cisco Network Engineer
4 1 (6.25%) Cisco Specialist
4 1 (6.25%) Firewall Specialist
4 1 (6.25%) IT Engineer
4 1 (6.25%) IT Security Engineer
4 1 (6.25%) Network Security Engineer
Miscellaneous
1 11 (68.75%) Data Centre
2 1 (6.25%) e-Health
2 1 (6.25%) Virtual Team
Operating Systems
1 3 (18.75%) Linux
1 3 (18.75%) Solaris
2 2 (12.50%) Windows
Processes & Methodologies
1 3 (18.75%) People Management
2 2 (12.50%) High Availability
2 2 (12.50%) Load Balancing
2 2 (12.50%) Network Architecture
2 2 (12.50%) Network Design
2 2 (12.50%) Network Management
2 2 (12.50%) Security Management
2 2 (12.50%) SIEM
3 1 (6.25%) Change Management
3 1 (6.25%) Configuration Management
3 1 (6.25%) Incident Management
3 1 (6.25%) Risk Assessment
3 1 (6.25%) Service Delivery
3 1 (6.25%) Validation
3 1 (6.25%) Virtual Team Management
Qualifications
1 4 (25.00%) Cisco Certification
2 3 (18.75%) CCNA
3 1 (6.25%) CCIE
3 1 (6.25%) CCNP
3 1 (6.25%) Security Cleared
Quality Assurance & Compliance
1 1 (6.25%) ISO/IEC 27001
Vendors
1 3 (18.75%) Cisco
2 1 (6.25%) CA