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 26 July 2016 with a comparison to the same period over the previous 2 years.

3 months to
26 Jul 2016
Same period 2015 Same period 2014
Integrated Service Digital Network (ISDN)
Rank 116 153 146
Rank change year-on-year
+37 -7
Permanent jobs citing ISDN 20 6 7
As % of all permanent IT jobs located in Hertfordshire 0.99% 0.24% 0.28%
As % of the Communications & Networking category 4.71% 1.12% 1.23%
Number of salaries quoted 7 1 2
Median salary £27,500 £45,000 £38,000
Median salary % change year-on-year
-38.88% +18.42%
90% offered a salary of more than £25,000 £45,000 £36,400
10% offered a salary of more than £65,000 £45,000 £39,600
UK excluding London median salary £38,000 £50,000 £37,500
% change year-on-year
-24.00% +33.33%
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
425 537 567
As % of all permanent IT jobs located in Hertfordshire 21.06% 21.80% 22.80%
Number of salaries quoted 343 368 453
Median salary £45,000 £40,000 £45,000
Median salary % change year-on-year
+12.50% -11.11%
90% offered a salary of more than £26,000 £26,000 £30,000
10% offered a salary of more than £60,000 £60,500 £60,000
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year
+3.65% +2.50%

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
Salary Histogram in Hertfordshire

This chart provides a salary histogram for IT jobs citing ISDN across the Hertfordshire region over the 3 months to 26 July 2016.

ISDN Salary Histogram 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 26 July 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 +21 7 - -
Hemel Hempstead - 2 £65,000 -
ISDN
East of England

ISDN
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 26 July 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 48 (100.00%) LAN
1 48 (100.00%) WAN
2 47 (97.92%) Firewall
3 45 (93.75%) VPN
4 42 (87.50%) ITIL
5 39 (81.25%) Juniper
6 37 (77.08%) Cisco
6 37 (77.08%) Cisco Certification
7 36 (75.00%) Broadband
7 36 (75.00%) TCP/IP
7 36 (75.00%) Network Security
7 36 (75.00%) Network Monitoring
8 35 (72.92%) Wireless
9 34 (70.83%) Security Cleared
10 33 (68.75%) SC Cleared
11 31 (64.58%) DV Cleared
12 30 (62.50%) Network Design
12 30 (62.50%) CCNA
13 27 (56.25%) JNCIA
13 27 (56.25%) JNCIS
13 27 (56.25%) JNCIP
13 27 (56.25%) JNCIE
13 27 (56.25%) e-Health
14 17 (35.42%) Coaching
15 10 (20.83%) Skype for Business
15 10 (20.83%) MPLS
16 9 (18.75%) DNS
16 9 (18.75%) DHCP
16 9 (18.75%) VoIP
16 9 (18.75%) Windows

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 10 (20.83%) Skype for Business
2 4 (8.33%) MS Exchange
Cloud Services
1 7 (14.58%) Office 365
1 7 (14.58%) PaaS
Communications & Networking
1 48 (100.00%) LAN
1 48 (100.00%) WAN
2 47 (97.92%) Firewall
3 45 (93.75%) VPN
4 36 (75.00%) Broadband
4 36 (75.00%) Network Security
4 36 (75.00%) TCP/IP
5 35 (72.92%) Wireless
6 10 (20.83%) MPLS
7 9 (18.75%) DHCP
7 9 (18.75%) DNS
7 9 (18.75%) VoIP
8 7 (14.58%) PBX
8 7 (14.58%) Remote Desktop
8 7 (14.58%) VLAN
9 5 (10.42%) Junos
10 3 (6.25%) ADSL
10 3 (6.25%) Skype
10 3 (6.25%) WLAN
11 2 (4.17%) OSPF
Development Applications
1 2 (4.17%) VSS/SourceSafe
General
1 7 (14.58%) Retail
2 2 (4.17%) Telecoms
Job Titles
1 35 (72.92%) Network Engineer
2 32 (66.67%) Support Engineer
3 25 (52.08%) Cisco Engineer
3 25 (52.08%) Cisco Network Engineer
3 25 (52.08%) Network Support
3 25 (52.08%) Network Support Engineer
4 23 (47.92%) Juniper Engineer
5 22 (45.83%) Cisco Network Support Engineer
5 22 (45.83%) Cisco Support
6 19 (39.58%) Juniper Support
7 18 (37.50%) Cisco Support Engineer
8 8 (16.67%) SC Cleared Network Engineer
9 7 (14.58%) 3rd Line Engineer
9 7 (14.58%) 3rd Line Support
9 7 (14.58%) 3rd Line Support Engineer
9 7 (14.58%) DV Cleared Network Engineer
10 6 (12.50%) LAN Engineer
10 6 (12.50%) LAN/WAN Engineer
10 6 (12.50%) WAN Engineer
11 5 (10.42%) Active Directory Engineer
Libraries, Frameworks & Software Standards
1 2 (4.17%) 802.1X
1 2 (4.17%) COM
Miscellaneous
1 27 (56.25%) e-Health
2 7 (14.58%) Data Centre
2 7 (14.58%) Mathematics
3 3 (6.25%) Video Conferencing
4 2 (4.17%) Analytical Skills
4 2 (4.17%) PKI
Operating Systems
1 9 (18.75%) Windows
2 7 (14.58%) Linux
2 7 (14.58%) Red Hat Enterprise Linux
2 7 (14.58%) Windows Server
2 7 (14.58%) Windows Server 2003
2 7 (14.58%) Windows Server 2008
2 7 (14.58%) Windows Server 2012
Processes & Methodologies
1 42 (87.50%) ITIL
2 36 (75.00%) Network Monitoring
3 30 (62.50%) Network Design
4 17 (35.42%) Coaching
5 9 (18.75%) Mentoring
6 7 (14.58%) E-Commerce
7 4 (8.33%) Service Delivery
8 3 (6.25%) Network Management
8 3 (6.25%) Requirements Management
9 2 (4.17%) Capacity Planning
9 2 (4.17%) Computer Security
9 2 (4.17%) Information Security
9 2 (4.17%) Network Architecture
Programming Languages
1 7 (14.58%) C
Qualifications
1 37 (77.08%) Cisco Certification
2 34 (70.83%) Security Cleared
3 33 (68.75%) SC Cleared
4 31 (64.58%) DV Cleared
5 30 (62.50%) CCNA
6 27 (56.25%) JNCIA
6 27 (56.25%) JNCIE
6 27 (56.25%) JNCIP
6 27 (56.25%) JNCIS
7 9 (18.75%) Degree
8 2 (4.17%) CCIE
8 2 (4.17%) CCNP
Quality Assurance & Compliance
1 2 (4.17%) Sarbanes-Oxley
System Software
1 9 (18.75%) Active Directory
2 7 (14.58%) Terminal Services
2 7 (14.58%) VMware ESX
2 7 (14.58%) VMware Infrastructure
Systems Management
1 2 (4.17%) Cisco CUCM
1 2 (4.17%) Cisco UCCE
1 2 (4.17%) Cisco UCCX
Vendors
1 39 (81.25%) Juniper
2 37 (77.08%) Cisco
3 7 (14.58%) CheckPoint
3 7 (14.58%) Microsoft
3 7 (14.58%) VMware
4 3 (6.25%) Aruba
4 3 (6.25%) BT
5 2 (4.17%) F5
5 2 (4.17%) Palo Alto
5 2 (4.17%) Tandberg