The table below looks at the statistics for ISDN skills in IT jobs advertised across the UK. 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)
UK
Rank 747 817 843
Rank change year-on-year
+70 +26
Permanent jobs citing ISDN 105 108 114
As % of all permanent IT jobs located in the UK 0.12% 0.11% 0.11%
As % of the Communications & Networking category 0.74% 0.66% 0.60%
Number of salaries quoted 83 92 106
Median salary £45,000 £39,000 £42,500
Median salary % change year-on-year
+15.38% -8.23%
90% offered a salary of more than £28,500 £22,500 £30,000
10% offered a salary of more than £62,000 £55,000 £51,500
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 across the UK.

Communications & Networking Category
UK
Permanent IT job ads with a match in the
Communications & Networking category
14141 16414 18857
As % of all permanent IT jobs located in the UK 16.80% 16.70% 18.03%
Number of salaries quoted 11489 13634 15290
Median salary £45,000 £45,000 £42,500
Median salary % change year-on-year
- +5.88%
90% offered a salary of more than £27,500 £27,500 £27,000
10% offered a salary of more than £70,000 £65,000 £67,500
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year
- +6.25%

ISDN
Jobs Demand Trend

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

ISDN Jobs Demand Trend in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN within the UK.

ISDN Salary Trend in the UK

ISDN
Salary Histogram

This chart provides a salary histogram for IT jobs citing ISDN over the 3 months to 16 January 2017 within the UK.

ISDN Salary Histogram in the UK

ISDN
Top 30 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK 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
England +70 90 £45,000 +15.38% 10
East of England +30 22 £30,750 -11.51% 1
South East +60 18 £60,000 +62.16% 2
London +48 17 £57,500 +9.52% 6
Hertfordshire +9 14 £28,500 +5.55%
West Midlands +12 9 £45,000 +25.00% 1
Herefordshire - 9 £45,000 -
West Yorkshire +43 8 £50,000 +3.09%
Yorkshire +16 8 £50,000 +100.00%
North West -8 8 £50,500 +152.50%
Leeds +34 7 £50,000 +3.09%
Hampshire +11 7 £40,000 +8.10%
Hitchin - 7 £28,500 -
Liverpool - 6 £53,000 -
Merseyside - 6 £53,000 -
East Midlands +17 5 £22,000 -51.11%
Northampton +14 5 £22,000 -51.11%
Northamptonshire +10 5 £22,000 -51.11%
West Sussex - 5 £62,500 - 1
Watford - 5 £29,000 -
Gatwick - 5 £62,500 -
Surrey +33 4 £60,000 +25.00%
City of London +26 4 £55,500 +0.90% 1
Cambridgeshire +3 4 £33,750 +7.14% 1
Cambridge - 4 £33,750 - 1
Essex +18 3 £67,500 +73.07%
Somerset - 3 £42,500 -
South West - 3 £42,500 -
Berkshire +43 2 - - 1
Stevenage -11 2 - -

ISDN
Top 30 Related IT Skills

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 with a requirement for ISDN.

1 146 (73.37%) Cisco
2 123 (61.81%) LAN
3 117 (58.79%) WAN
4 110 (55.28%) Firewall
5 101 (50.75%) DNS
6 99 (49.75%) DHCP
7 95 (47.74%) MPLS
8 89 (44.72%) Cisco Certification
9 87 (43.72%) ITIL
10 71 (35.68%) VoIP
10 71 (35.68%) VPN
10 71 (35.68%) Data Centre
11 66 (33.17%) Wireless
12 65 (32.66%) Ethernet
13 59 (29.65%) TCP/IP
14 58 (29.15%) CCNA
15 57 (28.64%) Windows
16 53 (26.63%) OSPF
17 52 (26.13%) Cisco Nexus
18 51 (25.63%) Juniper
18 51 (25.63%) VMware
19 50 (25.13%) IPsec
19 50 (25.13%) PSTN
20 45 (22.61%) Security Cleared
20 45 (22.61%) VMware Infrastructure
21 44 (22.11%) Skype for Business
22 43 (21.61%) Microsoft
22 43 (21.61%) VLAN
23 42 (21.11%) Cisco ASA
24 41 (20.60%) Windows Server

ISDN
Top Related IT Skills 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 44 (22.11%) Skype for Business
2 29 (14.57%) MS Exchange
3 15 (7.54%) IIS
4 13 (6.53%) SharePoint
5 10 (5.03%) Exchange Server 2007
6 8 (4.02%) Exchange Server 2010
7 5 (2.51%) Exchange Server 2013
8 4 (2.01%) Apache
Applications
1 22 (11.06%) MS Excel
2 10 (5.03%) MS Office
3 1 (0.50%) MS Visio
Business Applications
1 3 (1.51%) Cisco SocialMiner
2 1 (0.50%) SAP Oil and Gas
Cloud Services
1 21 (10.55%) Office 365
2 14 (7.04%) PaaS
3 7 (3.52%) Microsoft Azure
Communications & Networking
1 123 (61.81%) LAN
2 117 (58.79%) WAN
3 110 (55.28%) Firewall
4 101 (50.75%) DNS
5 99 (49.75%) DHCP
6 95 (47.74%) MPLS
7 71 (35.68%) VoIP
7 71 (35.68%) VPN
8 66 (33.17%) Wireless
9 65 (32.66%) Ethernet
10 59 (29.65%) TCP/IP
11 53 (26.63%) OSPF
12 52 (26.13%) Cisco Nexus
13 50 (25.13%) IPsec
13 50 (25.13%) PSTN
14 43 (21.61%) VLAN
15 42 (21.11%) Cisco ASA
16 38 (19.10%) ADSL
16 38 (19.10%) HSRP
17 37 (18.59%) DSL
Database & Business Intelligence
1 15 (7.54%) SQL Server
2 10 (5.03%) SQL Server 2008
3 5 (2.51%) SQL Server 2005
3 5 (2.51%) SQL Server 2012
4 2 (1.01%) Amazon RDS
General
1 38 (19.10%) Telecoms
2 17 (8.54%) Retail
3 15 (7.54%) Finance
4 12 (6.03%) Law
4 12 (6.03%) Military
5 5 (2.51%) Manufacturing
6 2 (1.01%) Billing
7 1 (0.50%) Banking
7 1 (0.50%) Electronics
7 1 (0.50%) Marketing
Job Titles
1 75 (37.69%) Network Engineer
2 34 (17.09%) Analyst
3 24 (12.06%) Cisco Engineer
3 24 (12.06%) Senior Network Engineer
4 20 (10.05%) Cisco Network Engineer
5 18 (9.05%) Support Engineer
6 14 (7.04%) 3rd Line Engineer
6 14 (7.04%) 3rd Line Support
6 14 (7.04%) 3rd Line Support Engineer
6 14 (7.04%) Office 365 Engineer
7 13 (6.53%) Cisco Analyst
7 13 (6.53%) Telecoms Analyst
8 12 (6.03%) Infrastructure Engineer
8 12 (6.03%) Network Analyst
9 10 (5.03%) Linux Engineer
9 10 (5.03%) Linux Support
9 10 (5.03%) Linux Support Engineer
9 10 (5.03%) NOC Technician
9 10 (5.03%) Support Analyst
10 9 (4.52%) Active Directory Engineer
Libraries, Frameworks & Software Standards
1 29 (14.57%) 802.1X
2 14 (7.04%) XMPP
3 2 (1.01%) .NET
3 2 (1.01%) Web Services
4 1 (0.50%) ASP.NET
4 1 (0.50%) CCXML
4 1 (0.50%) COM
4 1 (0.50%) CSS
4 1 (0.50%) JTAPI
4 1 (0.50%) RESTful
4 1 (0.50%) RFC 2833
4 1 (0.50%) TAPI
4 1 (0.50%) VXML
4 1 (0.50%) XML
Miscellaneous
1 71 (35.68%) Data Centre
2 31 (15.58%) Management Information System
3 21 (10.55%) Driving Licence
4 19 (9.55%) Video Conferencing
5 17 (8.54%) PKI
6 14 (7.04%) Analytical Skills
6 14 (7.04%) Mathematics
7 10 (5.03%) e-Health
8 6 (3.02%) CCTV
8 6 (3.02%) Replication
9 5 (2.51%) Clustering
10 3 (1.51%) Contactless
11 2 (1.01%) Client/Server
11 2 (1.01%) IVR
12 1 (0.50%) APACS
12 1 (0.50%) Chip and PIN
12 1 (0.50%) Computer Science
12 1 (0.50%) EMV
12 1 (0.50%) Mainframe
12 1 (0.50%) Tandem
Operating Systems
1 57 (28.64%) Windows
2 41 (20.60%) Windows Server
3 31 (15.58%) Linux
4 28 (14.07%) Windows Server 2012
5 23 (11.56%) Windows Server 2008
6 20 (10.05%) Windows Server 2003
7 15 (7.54%) Unix
8 14 (7.04%) Red Hat Enterprise Linux
9 4 (2.01%) Debian
9 4 (2.01%) Windows 7
10 1 (0.50%) Windows XP
Processes & Methodologies
1 87 (43.72%) ITIL
2 26 (13.07%) Load Balancing
2 26 (13.07%) Network Management
3 25 (12.56%) Network Design
4 21 (10.55%) Change Management
4 21 (10.55%) Line Management
5 19 (9.55%) Information Security
6 18 (9.05%) Change Control
7 17 (8.54%) Mentoring
7 17 (8.54%) Technical Architecture
8 16 (8.04%) Network Monitoring
8 16 (8.04%) WAN Optimisation
9 15 (7.54%) Coaching
10 14 (7.04%) E-Commerce
10 14 (7.04%) Incident Management
10 14 (7.04%) Project Management
11 13 (6.53%) Disaster Recovery
11 13 (6.53%) GAP Analysis
11 13 (6.53%) Information Assurance
11 13 (6.53%) SIEM
Programming Languages
1 16 (8.04%) C
2 11 (5.53%) SQL
3 1 (0.50%) Bash Shell
3 1 (0.50%) Java
3 1 (0.50%) JavaScript
3 1 (0.50%) Perl
3 1 (0.50%) VB.NET
Qualifications
1 89 (44.72%) Cisco Certification
2 58 (29.15%) CCNA
3 45 (22.61%) Security Cleared
4 34 (17.09%) SC Cleared
5 33 (16.58%) CCNP
6 15 (7.54%) Degree
7 13 (6.53%) GCIH
7 13 (6.53%) GIAC
8 11 (5.53%) DV Cleared
8 11 (5.53%) JNCIA
8 11 (5.53%) JNCIP
9 10 (5.03%) JNCIE
9 10 (5.03%) JNCIS
10 8 (4.02%) ITIL Certification
11 6 (3.02%) ITIL Foundation Certificate
12 4 (2.01%) CCIE
12 4 (2.01%) MCSA
12 4 (2.01%) Microsoft Certification
13 3 (1.51%) CCNP Voice
14 1 (0.50%) CCDA
Quality Assurance & Compliance
1 29 (14.57%) PCI DSS
2 18 (9.05%) SLA
3 3 (1.51%) ISO/IEC 27001
4 1 (0.50%) PA-DSS
System Software
1 45 (22.61%) VMware Infrastructure
2 32 (16.08%) Active Directory
3 23 (11.56%) VMware ESX
4 17 (8.54%) Hyper-V
5 14 (7.04%) Terminal Services
6 13 (6.53%) Firmware
7 9 (4.52%) vSphere
8 7 (3.52%) Virtual Servers
9 5 (2.51%) XenApp
10 4 (2.01%) iptables
10 4 (2.01%) pfSense
11 3 (1.51%) Microsoft Virtual Server
12 2 (1.01%) VMware ESXi
Systems Management
1 19 (9.55%) Cisco Prime
2 18 (9.05%) Cisco CUCM
2 18 (9.05%) SolarWinds Orion
3 10 (5.03%) Cisco UCCE
4 8 (4.02%) SCCM
5 7 (3.52%) SCOM
6 6 (3.02%) NetBackup
7 3 (1.51%) Cisco UCCX
8 1 (0.50%) DameWare
8 1 (0.50%) Nagios
Vendors
1 146 (73.37%) Cisco
2 51 (25.63%) Juniper
2 51 (25.63%) VMware
3 43 (21.61%) Microsoft
4 35 (17.59%) F5
5 25 (12.56%) Palo Alto
6 24 (12.06%) CheckPoint
6 24 (12.06%) SolarWinds
7 23 (11.56%) Barracuda Networks
8 16 (8.04%) Meraki
9 15 (7.54%) Citrix
10 13 (6.53%) HP
10 13 (6.53%) Mitel
11 12 (6.03%) Avaya
12 10 (5.03%) Cyberoam
13 8 (4.02%) Nortel
14 7 (3.52%) 3PAR
14 7 (3.52%) Veeam
15 5 (2.51%) Panasonic
15 5 (2.51%) Toshiba
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