The table below looks at the statistics for ISDN skills in IT jobs advertised for the Hertfordshire region. Included is a guide to the salaries offered in IT jobs that have cited ISDN over the 3 months to 16 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
16 Jan 2017
Same period 2016 Same period 2015
Integrated Service Digital Network (ISDN)
East of England / Hertfordshire
Rank 119 128 140
Rank change year-on-year
+9 +12
Permanent jobs citing ISDN 14 8 2
As % of all permanent IT jobs located in Hertfordshire 0.69% 0.40% 0.097%
As % of the Communications & Networking category 4.49% 1.77% 0.42%
Number of salaries quoted 8 2 2
Median salary £28,500 £27,000 £44,750
Median salary % change year-on-year
+5.55% -39.66%
UK excluding London median salary £43,000 £37,000 £40,000
% change year-on-year
+16.21% -7.50%

The following table is for comparison with the above and provides statistics for the entire Communications & Networking category in permanent jobs advertised in the Hertfordshire region.

Communications & Networking Category
Hertfordshire
Permanent IT job ads with a match in the
Communications & Networking category
312 452 471
As % of all permanent IT jobs located in Hertfordshire 15.42% 22.32% 22.76%
Number of salaries quoted 233 372 383
Median salary £37,500 £45,000 £45,000
Median salary % change year-on-year
-16.66% -
90% offered a salary of more than £25,500 £30,000 £29,500
10% offered a salary of more than £65,000 £61,700 £62,500
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year
- +6.25%

ISDN
Jobs Demand Trend in Hertfordshire

The demand trend of job ads across the Hertfordshire region citing ISDN as a proportion of all IT jobs with a match in the Communications & Networking category.

ISDN Jobs Demand Trend in Hertfordshire

ISDN
Salary Trend in Hertfordshire

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

ISDN Salary Trend in Hertfordshire

ISDN
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the Hertfordshire region over the 3 months to 16 January 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
Hitchin - 7 £28,500 -
Watford - 5 £29,000 -
Stevenage -11 2 - -
ISDN
East of England

ISDN
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 16 January 2017, IT jobs citing ISDN 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 ISDN.

1 25 (100.00%) LAN
2 24 (96.00%) WAN
2 24 (96.00%) ITIL
2 24 (96.00%) VPN
3 23 (92.00%) PBX
4 16 (64.00%) Firewall
5 15 (60.00%) MPLS
5 15 (60.00%) DHCP
5 15 (60.00%) Linux
5 15 (60.00%) DNS
5 15 (60.00%) VoIP
5 15 (60.00%) VLAN
5 15 (60.00%) Remote Desktop
6 14 (56.00%) Mentoring
6 14 (56.00%) Coaching
6 14 (56.00%) Windows Server
6 14 (56.00%) Degree
6 14 (56.00%) Mathematics
6 14 (56.00%) Windows Server 2008
6 14 (56.00%) Red Hat Enterprise Linux
6 14 (56.00%) VMware Infrastructure
6 14 (56.00%) PaaS
6 14 (56.00%) Skype for Business
6 14 (56.00%) Office 365
6 14 (56.00%) Windows Server 2012
6 14 (56.00%) Data Centre
6 14 (56.00%) Microsoft
6 14 (56.00%) Active Directory
6 14 (56.00%) Terminal Services
6 14 (56.00%) CheckPoint

ISDN
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:

Application Platforms
1 14 (56.00%) MS Exchange
1 14 (56.00%) Skype for Business
Cloud Services
1 14 (56.00%) Office 365
1 14 (56.00%) PaaS
Communications & Networking
1 25 (100.00%) LAN
2 24 (96.00%) VPN
2 24 (96.00%) WAN
3 23 (92.00%) PBX
4 16 (64.00%) Firewall
5 15 (60.00%) DHCP
5 15 (60.00%) DNS
5 15 (60.00%) MPLS
5 15 (60.00%) Remote Desktop
5 15 (60.00%) VLAN
5 15 (60.00%) VoIP
6 11 (44.00%) TCP/IP
7 10 (40.00%) Wireless
8 9 (36.00%) BGP
9 8 (32.00%) Cisco ASA
9 8 (32.00%) Cisco Wireless
9 8 (32.00%) OSPF
10 3 (12.00%) Broadband
11 2 (8.00%) Network Security
12 1 (4.00%) PSTN
General
1 14 (56.00%) Retail
Job Titles
1 14 (56.00%) 3rd Line Engineer
1 14 (56.00%) 3rd Line Support
1 14 (56.00%) 3rd Line Support Engineer
1 14 (56.00%) Office 365 Engineer
1 14 (56.00%) Support Engineer
2 10 (40.00%) Linux Engineer
2 10 (40.00%) Linux Support
2 10 (40.00%) Linux Support Engineer
3 8 (32.00%) Network Engineer
3 8 (32.00%) Network Operations Engineer
3 8 (32.00%) Operations Engineer
4 4 (16.00%) 3rd Line Server Engineer
4 4 (16.00%) 3rd Line Server Support
4 4 (16.00%) Active Directory Engineer
4 4 (16.00%) Active Directory Support
4 4 (16.00%) Active Directory Support Engineer
4 4 (16.00%) Exchange Support
4 4 (16.00%) Server Engineer
4 4 (16.00%) Server Support
4 4 (16.00%) Windows Server Support
Libraries, Frameworks & Software Standards
1 1 (4.00%) COM
Miscellaneous
1 14 (56.00%) Data Centre
1 14 (56.00%) Mathematics
2 8 (32.00%) Driving Licence
3 2 (8.00%) e-Health
4 1 (4.00%) Analytical Skills
Operating Systems
1 15 (60.00%) Linux
2 14 (56.00%) Red Hat Enterprise Linux
2 14 (56.00%) Windows
2 14 (56.00%) Windows Server
2 14 (56.00%) Windows Server 2003
2 14 (56.00%) Windows Server 2008
2 14 (56.00%) Windows Server 2012
3 1 (4.00%) Unix
Processes & Methodologies
1 24 (96.00%) ITIL
2 14 (56.00%) Coaching
2 14 (56.00%) E-Commerce
2 14 (56.00%) Mentoring
3 8 (32.00%) Agile Software Development
4 2 (8.00%) Network Design
4 2 (8.00%) Network Monitoring
5 1 (4.00%) Root Cause Analysis
5 1 (4.00%) Ticket Management
Programming Languages
1 14 (56.00%) C
2 1 (4.00%) Bash Shell
2 1 (4.00%) Perl
Qualifications
1 14 (56.00%) Degree
2 11 (44.00%) CCNA
2 11 (44.00%) Cisco Certification
3 9 (36.00%) CCNP
4 8 (32.00%) ITIL Certification
5 3 (12.00%) JNCIA
5 3 (12.00%) JNCIP
6 2 (8.00%) JNCIE
6 2 (8.00%) JNCIS
6 2 (8.00%) SC Cleared
6 2 (8.00%) Security Cleared
Quality Assurance & Compliance
1 1 (4.00%) SLA
System Software
1 14 (56.00%) Active Directory
1 14 (56.00%) Terminal Services
1 14 (56.00%) VMware ESX
1 14 (56.00%) VMware Infrastructure
Systems Management
1 8 (32.00%) Cisco CUCM
Vendors
1 14 (56.00%) CheckPoint
1 14 (56.00%) Microsoft
1 14 (56.00%) VMware
2 10 (40.00%) Cisco
3 2 (8.00%) Juniper