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 7 December 2016 with a comparison to the same period over the previous 2 years.

3 months to
7 Dec 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 119 - 152
Rank change year-on-year
- 0
Permanent jobs citing ISDN 15 0 1
As % of all permanent IT jobs located in Hertfordshire 0.70% - 0.041%
As % of the Communications & Networking category 4.55% - 0.18%
Number of salaries quoted 9 0 1
Median salary £28,500 - £63,500
UK excluding London median salary £42,500 £36,750 £39,500
% change year-on-year
+15.64% -6.96%
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
330 434 545
As % of all permanent IT jobs located in Hertfordshire 15.36% 19.82% 22.53%
Number of salaries quoted 258 343 443
Median salary £42,500 £45,000 £45,000
Median salary % change year-on-year
-5.55% -
90% offered a salary of more than £26,000 £27,000 £27,500
10% offered a salary of more than £62,500 £60,000 £60,000
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 7 December 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
Hitchin - 8 £28,500 -
Watford - 5 £29,000 -
Stevenage - 2 - -
ISDN
East of England

ISDN
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 7 December 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 27 (100.00%) LAN
2 26 (96.30%) WAN
3 24 (88.89%) ITIL
3 24 (88.89%) VPN
4 21 (77.78%) PBX
5 18 (66.67%) Firewall
6 15 (55.56%) MPLS
7 14 (51.85%) Cisco
7 14 (51.85%) Skype for Business
8 13 (48.15%) VLAN
8 13 (48.15%) Remote Desktop
8 13 (48.15%) VoIP
8 13 (48.15%) DNS
8 13 (48.15%) CCNA
8 13 (48.15%) Cisco Certification
8 13 (48.15%) DHCP
8 13 (48.15%) Linux
8 13 (48.15%) TCP/IP
9 12 (44.44%) VMware
9 12 (44.44%) VMware ESX
9 12 (44.44%) Wireless
9 12 (44.44%) Retail
9 12 (44.44%) E-Commerce
9 12 (44.44%) MS Exchange
9 12 (44.44%) C
9 12 (44.44%) Windows
9 12 (44.44%) Active Directory
9 12 (44.44%) Terminal Services
9 12 (44.44%) CheckPoint
9 12 (44.44%) Windows Server 2003

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 (51.85%) Skype for Business
2 12 (44.44%) MS Exchange
Cloud Services
1 12 (44.44%) Office 365
1 12 (44.44%) PaaS
Communications & Networking
1 27 (100.00%) LAN
2 26 (96.30%) WAN
3 24 (88.89%) VPN
4 21 (77.78%) PBX
5 18 (66.67%) Firewall
6 15 (55.56%) MPLS
7 13 (48.15%) DHCP
7 13 (48.15%) DNS
7 13 (48.15%) Remote Desktop
7 13 (48.15%) TCP/IP
7 13 (48.15%) VLAN
7 13 (48.15%) VoIP
8 12 (44.44%) Wireless
9 9 (33.33%) BGP
10 8 (29.63%) Cisco ASA
10 8 (29.63%) Cisco Wireless
10 8 (29.63%) OSPF
11 6 (22.22%) Network Security
12 5 (18.52%) Broadband
13 3 (11.11%) ADSL
General
1 12 (44.44%) Retail
Job Titles
1 14 (51.85%) Support Engineer
2 12 (44.44%) 3rd Line Engineer
2 12 (44.44%) 3rd Line Support
2 12 (44.44%) 3rd Line Support Engineer
3 11 (40.74%) Linux Engineer
3 11 (40.74%) Linux Support
3 11 (40.74%) Linux Support Engineer
3 11 (40.74%) Office 365 Engineer
4 10 (37.04%) Network Engineer
5 8 (29.63%) Network Operations Engineer
5 8 (29.63%) Operations Engineer
6 4 (14.81%) Cisco Support
6 4 (14.81%) Juniper Support
6 4 (14.81%) Network Support
7 2 (7.41%) Cisco Engineer
7 2 (7.41%) Cisco Network Engineer
7 2 (7.41%) Network Support Engineer
7 2 (7.41%) Network Support Technician
7 2 (7.41%) Network Technician
7 2 (7.41%) Support Technician
Libraries, Frameworks & Software Standards
1 1 (3.70%) COM
Miscellaneous
1 12 (44.44%) Data Centre
1 12 (44.44%) Mathematics
2 8 (29.63%) Driving Licence
3 4 (14.81%) e-Health
4 2 (7.41%) Video Conferencing
5 1 (3.70%) Analytical Skills
Operating Systems
1 13 (48.15%) Linux
2 12 (44.44%) Red Hat Enterprise Linux
2 12 (44.44%) Windows
2 12 (44.44%) Windows Server
2 12 (44.44%) Windows Server 2003
2 12 (44.44%) Windows Server 2008
2 12 (44.44%) Windows Server 2012
3 1 (3.70%) Unix
Processes & Methodologies
1 24 (88.89%) ITIL
2 12 (44.44%) Coaching
2 12 (44.44%) E-Commerce
2 12 (44.44%) Mentoring
3 8 (29.63%) Agile Software Development
4 4 (14.81%) Network Design
4 4 (14.81%) Network Monitoring
5 2 (7.41%) Requirements Management
6 1 (3.70%) Root Cause Analysis
6 1 (3.70%) Ticket Management
Programming Languages
1 12 (44.44%) C
2 1 (3.70%) Bash Shell
2 1 (3.70%) Perl
Qualifications
1 13 (48.15%) CCNA
1 13 (48.15%) Cisco Certification
2 12 (44.44%) Degree
3 9 (33.33%) CCNP
4 8 (29.63%) ITIL Certification
5 5 (18.52%) JNCIA
5 5 (18.52%) JNCIP
6 4 (14.81%) JNCIE
6 4 (14.81%) JNCIS
6 4 (14.81%) Security Cleared
7 3 (11.11%) SC Cleared
8 1 (3.70%) DV Cleared
Quality Assurance & Compliance
1 1 (3.70%) SLA
System Software
1 12 (44.44%) Active Directory
1 12 (44.44%) Terminal Services
1 12 (44.44%) VMware ESX
1 12 (44.44%) VMware Infrastructure
Systems Management
1 8 (29.63%) Cisco CUCM
Vendors
1 14 (51.85%) Cisco
2 12 (44.44%) CheckPoint
2 12 (44.44%) Microsoft
2 12 (44.44%) VMware
3 6 (22.22%) Juniper
4 2 (7.41%) Aruba
4 2 (7.41%) BT