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 27 September 2016 with a comparison to the same period over the previous 2 years.

3 months to
27 Sep 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 126 147 135
Rank change year-on-year
+21 -12
Permanent jobs citing ISDN 8 2 10
As % of all permanent IT jobs located in Hertfordshire 0.40% 0.084% 0.44%
As % of the Communications & Networking category 2.12% 0.51% 2.07%
Number of salaries quoted 0 1 2
Median salary - £24,000 £38,000
Median salary % change year-on-year
- -36.84%
UK excluding London median salary £37,500 £41,024 £32,250
% change year-on-year
-8.59% +27.20%
ISDN
East of England

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
378 393 482
As % of all permanent IT jobs located in Hertfordshire 18.75% 16.45% 21.13%
Number of salaries quoted 305 309 386
Median salary £45,000 £45,000 £42,500
Median salary % change year-on-year
- +5.88%
90% offered a salary of more than £30,000 £28,000 £28,500
10% offered a salary of more than £60,000 £66,000 £57,500
UK excluding London median salary £42,500 £42,000 £40,000
% change year-on-year
+1.19% +5.00%

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 27 September 2016. 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
(Click see detailed
statistics and trends)
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
Watford +10 8 - -
ISDN
East of England

ISDN
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 27 September 2016, 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 38 (100.00%) LAN
1 38 (100.00%) WAN
1 38 (100.00%) Firewall
2 36 (94.74%) VPN
2 36 (94.74%) ITIL
3 25 (65.79%) Juniper
4 24 (63.16%) Cisco
4 24 (63.16%) Network Security
5 23 (60.53%) Security Cleared
5 23 (60.53%) Cisco Certification
5 23 (60.53%) Wireless
5 23 (60.53%) Broadband
5 23 (60.53%) TCP/IP
5 23 (60.53%) Network Monitoring
6 22 (57.89%) SC Cleared
6 22 (57.89%) Network Design
7 21 (55.26%) DV Cleared
8 19 (50.00%) e-Health
8 19 (50.00%) CCNA
8 19 (50.00%) Coaching
9 18 (47.37%) JNCIA
9 18 (47.37%) JNCIS
9 18 (47.37%) JNCIP
9 18 (47.37%) JNCIE
10 15 (39.47%) Skype for Business
10 15 (39.47%) MPLS
11 13 (34.21%) Windows Server
11 13 (34.21%) Office 365
11 13 (34.21%) Windows Server 2012
11 13 (34.21%) Mentoring

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 15 (39.47%) Skype for Business
2 10 (26.32%) MS Exchange
Cloud Services
1 13 (34.21%) Office 365
1 13 (34.21%) PaaS
Communications & Networking
1 38 (100.00%) Firewall
1 38 (100.00%) LAN
1 38 (100.00%) WAN
2 36 (94.74%) VPN
3 24 (63.16%) Network Security
4 23 (60.53%) Broadband
4 23 (60.53%) TCP/IP
4 23 (60.53%) Wireless
5 15 (39.47%) MPLS
6 13 (34.21%) DHCP
6 13 (34.21%) DNS
6 13 (34.21%) PBX
6 13 (34.21%) Remote Desktop
6 13 (34.21%) VLAN
6 13 (34.21%) VoIP
7 3 (7.89%) Junos
8 2 (5.26%) ADSL
8 2 (5.26%) Skype
8 2 (5.26%) WLAN
General
1 13 (34.21%) Retail
Job Titles
1 32 (84.21%) Support Engineer
2 23 (60.53%) Network Engineer
3 19 (50.00%) Cisco Engineer
3 19 (50.00%) Cisco Network Engineer
3 19 (50.00%) Network Support
3 19 (50.00%) Network Support Engineer
4 17 (44.74%) Cisco Network Support Engineer
4 17 (44.74%) Cisco Support
5 16 (42.11%) Juniper Engineer
6 14 (36.84%) Juniper Support
7 13 (34.21%) 3rd Line Engineer
7 13 (34.21%) 3rd Line Support
7 13 (34.21%) 3rd Line Support Engineer
7 13 (34.21%) Cisco Support Engineer
8 11 (28.95%) Linux Engineer
8 11 (28.95%) Linux Support
8 11 (28.95%) Linux Support Engineer
9 8 (21.05%) Office 365 Engineer
10 5 (13.16%) Active Directory Engineer
10 5 (13.16%) Active Directory Support
Libraries, Frameworks & Software Standards
1 2 (5.26%) COM
Miscellaneous
1 19 (50.00%) e-Health
2 13 (34.21%) Data Centre
2 13 (34.21%) Mathematics
3 2 (5.26%) Video Conferencing
Operating Systems
1 13 (34.21%) Linux
1 13 (34.21%) Red Hat Enterprise Linux
1 13 (34.21%) Windows
1 13 (34.21%) Windows Server
1 13 (34.21%) Windows Server 2003
1 13 (34.21%) Windows Server 2008
1 13 (34.21%) Windows Server 2012
Processes & Methodologies
1 36 (94.74%) ITIL
2 23 (60.53%) Network Monitoring
3 22 (57.89%) Network Design
4 19 (50.00%) Coaching
5 13 (34.21%) E-Commerce
5 13 (34.21%) Mentoring
6 3 (7.89%) Network Management
6 3 (7.89%) Service Delivery
7 2 (5.26%) Requirements Management
Programming Languages
1 13 (34.21%) C
Qualifications
1 23 (60.53%) Cisco Certification
1 23 (60.53%) Security Cleared
2 22 (57.89%) SC Cleared
3 21 (55.26%) DV Cleared
4 19 (50.00%) CCNA
5 18 (47.37%) JNCIA
5 18 (47.37%) JNCIE
5 18 (47.37%) JNCIP
5 18 (47.37%) JNCIS
6 13 (34.21%) Degree
System Software
1 13 (34.21%) Active Directory
1 13 (34.21%) Terminal Services
1 13 (34.21%) VMware ESX
1 13 (34.21%) VMware Infrastructure
Vendors
1 25 (65.79%) Juniper
2 24 (63.16%) Cisco
3 13 (34.21%) CheckPoint
3 13 (34.21%) Microsoft
3 13 (34.21%) VMware
4 2 (5.26%) Aruba
4 2 (5.26%) BT