The following table provides summary statistics for contract job vacancies with a requirement for ISDN skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ISDN over the 3 months to 29 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Integrated Service Digital Network (ISDN)
UK
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 565 597 595
Rank change year-on-year +32 -2  
Contract jobs citing ISDN 49 52 49
As % of all contract IT jobs advertised in the UK 0.10% 0.097% 0.087%
As % of the Communications & Networking category 0.76% 0.60% 0.61%
Number of daily rates quoted 36 26 16
UK median daily rate £391 £285 £338
Median daily rate % change year-on-year +37.40% -15.62%  
10th Percentile £258 £167 £190
90th Percentile £576 £413 £425
UK excluding London median daily rate £400 £335 £331
% change year-on-year +19.40% +1.13%  
Number of hourly rates quoted 3 3 5
UK median hourly rate £24.86 £26.00 £18.00
Median hourly rate % change year-on-year -4.38% +44.44%  
UK excluding London median hourly rate - £12.38 £41.29
% change year-on-year - -70.02%  

ISDN is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
UK
Contract job vacancies with a requirement for communications and computer networking skills 6455 8694 8061
As % of all contract IT job vacancies advertised in the UK 13.70% 16.19% 14.38%
Number of daily rates quoted 10117 13736 12668
UK median daily rate £400 £388 £355
Median daily rate % change year-on-year +3.09% +9.29%  
10th Percentile £208 £228 £206
90th Percentile £575 £563 £525
UK excluding London median daily rate £380 £365 £340
% change year-on-year +4.10% +7.35%  
Number of hourly rates quoted 1010 1069 1117
UK median hourly rate £28.27 £28.50 £22.83
Median hourly rate % change year-on-year -0.82% +24.83%  
10th Percentile £12.00 £12.25 £12.25
90th Percentile £52.50 £48.00 £47.50
UK excluding London median hourly rate £27.50 £31.50 £23.00
% change year-on-year -12.69% +36.95%  

ISDN
Job Vacancy Trend

Job postings citing ISDN as a percentage of all IT jobs advertised.

Job vacancy trend for ISDN in the UK

ISDN
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing ISDN.

Contractor daily rate trend for ISDN in the UK

ISDN
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing ISDN over the 3 months to 29 June 2017.

Contractor daily rate histogram for ISDN in the UK

ISDN
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing ISDN.

Contractor hourly rate trend for ISDN in the UK

ISDN
Top 8 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ISDN within the UK over the 3 months to 29 June 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
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +30 49 £391 +36.08% 6
London +7 25 £388 +40.90% 3
UK excluding London +59 24 £400 +19.40% 3
South West - 8 £638 - 2
North of England +62 7 £325 -21.68%
South East +10 4 £334 -0.66% 1
East of England -12 4 £381 +32.60%
Midlands - 1 - -

For the 6 months to 29 June 2017, IT contractor jobs citing ISDN also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for ISDN.

1 62 (76.54%) Cisco
2 47 (58.02%) Cisco Certification
3 44 (54.32%) TCP/IP
4 41 (50.62%) Firewall
5 36 (44.44%) WAN
6 35 (43.21%) VoIP
7 28 (34.57%) LAN
8 25 (30.86%) Wireless
8 25 (30.86%) CCNA
8 25 (30.86%) Security Cleared
9 23 (28.40%) VPN
10 22 (27.16%) Network Security
11 21 (25.93%) VLAN
11 21 (25.93%) Juniper
12 19 (23.46%) ITIL
12 19 (23.46%) DV Cleared
13 18 (22.22%) Network Management
13 18 (22.22%) Ethernet
14 17 (20.99%) Broadband
14 17 (20.99%) CCNP
14 17 (20.99%) Network Design
15 16 (19.75%) Network Monitoring
16 14 (17.28%) DHCP
17 13 (16.05%) DNS
17 13 (16.05%) Windows
17 13 (16.05%) Cisco UCCX
18 12 (14.81%) Cisco CUCM
18 12 (14.81%) HSRP
18 12 (14.81%) Unified Communications
18 12 (14.81%) MPLS

ISDN
Co-occurring 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 8 (9.88%) Skype for Business
2 4 (4.94%) MS Exchange
3 2 (2.47%) Exchange Server 2010
4 1 (1.23%) Blackberry Enterprise Server
4 1 (1.23%) CMS
4 1 (1.23%) IIS
4 1 (1.23%) SharePoint
Applications
1 2 (2.47%) Microsoft Excel
1 2 (2.47%) Microsoft Office
1 2 (2.47%) MS Visio
2 1 (1.23%) Microsoft PowerPoint
Business Applications
1 4 (4.94%) Cisco SocialMiner
2 2 (2.47%) SAP Oil and Gas
Cloud Services
1 5 (6.17%) Amazon AWS
1 5 (6.17%) Virtual Private Cloud
Communications & Networking
1 44 (54.32%) TCP/IP
2 41 (50.62%) Firewall
3 36 (44.44%) WAN
4 35 (43.21%) VoIP
5 28 (34.57%) LAN
6 25 (30.86%) Wireless
7 23 (28.40%) VPN
8 22 (27.16%) Network Security
9 21 (25.93%) VLAN
10 18 (22.22%) Ethernet
11 17 (20.99%) Broadband
12 14 (17.28%) DHCP
13 13 (16.05%) DNS
14 12 (14.81%) HSRP
14 12 (14.81%) MPLS
14 12 (14.81%) Unified Communications
15 11 (13.58%) Cisco IOS
16 10 (12.35%) ADSL
16 10 (12.35%) Cisco Nexus
17 9 (11.11%) PBX
General
1 11 (13.58%) Telecoms
2 3 (3.70%) Finance
2 3 (3.70%) Retail
3 2 (2.47%) Electronics
3 2 (2.47%) Manufacturing
3 2 (2.47%) Marketing
4 1 (1.23%) Banking
4 1 (1.23%) Corporate Banking
4 1 (1.23%) Local Government
Job Titles
1 28 (34.57%) Network Engineer
2 9 (11.11%) DV Cleared Network Engineer
2 9 (11.11%) Support Engineer
3 8 (9.88%) Cisco Engineer
4 7 (8.64%) Network Support
4 7 (8.64%) SC Cleared Network Engineer
5 6 (7.41%) Cisco Specialist
5 6 (7.41%) Network Support Engineer
5 6 (7.41%) Security Engineer
6 5 (6.17%) Network Specialist
6 5 (6.17%) Unified Communications Specialist
7 4 (4.94%) Analyst
7 4 (4.94%) Cisco Network Specialist
7 4 (4.94%) Technical Support
7 4 (4.94%) Telephony Engineer
8 3 (3.70%) Administrator
8 3 (3.70%) Architect
8 3 (3.70%) Senior Network Engineer
8 3 (3.70%) Support Specialist
8 3 (3.70%) Technical Specialist
Libraries, Frameworks & Software Standards
1 11 (13.58%) 802.1X
2 7 (8.64%) XMPP
3 2 (2.47%) RFC 2547
3 2 (2.47%) Web Services
Miscellaneous
1 9 (11.11%) Analytical Skills
2 8 (9.88%) Video Conferencing
3 5 (6.17%) Distributed Denial-of-Service
4 4 (4.94%) Data Centre
4 4 (4.94%) Management Information System
5 3 (3.70%) Handset
5 3 (3.70%) IVR
6 2 (2.47%) Smartphone
7 1 (1.23%) Blackberry
7 1 (1.23%) Computer Science
7 1 (1.23%) e-Health
7 1 (1.23%) NHS
7 1 (1.23%) Replication
Operating Systems
1 13 (16.05%) Windows
2 3 (3.70%) Linux
2 3 (3.70%) Red Hat Enterprise Linux
2 3 (3.70%) Windows Server 2008
3 2 (2.47%) Windows 7
3 2 (2.47%) Windows Server
3 2 (2.47%) Windows Server 2012
4 1 (1.23%) Unix
4 1 (1.23%) Windows Server 2003
4 1 (1.23%) Windows XP
Processes & Methodologies
1 19 (23.46%) ITIL
2 18 (22.22%) Network Management
3 17 (20.99%) Network Design
4 16 (19.75%) Network Monitoring
5 11 (13.58%) Migration
6 9 (11.11%) Project Management
7 6 (7.41%) Configuration Management
8 5 (6.17%) DDoS Mitigation
8 5 (6.17%) Demand Management
8 5 (6.17%) E-Discovery
8 5 (6.17%) Load Balancing
8 5 (6.17%) Penetration Testing
8 5 (6.17%) Service Design
9 3 (3.70%) Change Management
9 3 (3.70%) Disaster Recovery
9 3 (3.70%) High Availability
9 3 (3.70%) Incident Management
9 3 (3.70%) Information Security
10 2 (2.47%) Programme Management
10 2 (2.47%) Stakeholder Management
Programming Languages
1 1 (1.23%) C
1 1 (1.23%) SQL
Qualifications
1 47 (58.02%) Cisco Certification
2 25 (30.86%) CCNA
2 25 (30.86%) Security Cleared
3 19 (23.46%) DV Cleared
4 17 (20.99%) CCNP
5 10 (12.35%) SC Cleared
6 6 (7.41%) CCNP Voice
7 3 (3.70%) JNCIA
8 2 (2.47%) CCSE
8 2 (2.47%) CISSP
8 2 (2.47%) GIAC
8 2 (2.47%) JNCIE
8 2 (2.47%) JNCIP
8 2 (2.47%) JNCIS
9 1 (1.23%) CCIE
9 1 (1.23%) Computer Science Degree
9 1 (1.23%) Degree
9 1 (1.23%) ISEB
9 1 (1.23%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 2 (2.47%) PCI DSS
2 1 (1.23%) PMO
System Software
1 3 (3.70%) Active Directory
1 3 (3.70%) Firmware
2 2 (2.47%) Hyper-V
2 2 (2.47%) VMware Infrastructure
3 1 (1.23%) Microsoft Virtual Server
3 1 (1.23%) ProxySG
3 1 (1.23%) Virtual Servers
3 1 (1.23%) VMware ESXi
Systems Management
1 13 (16.05%) Cisco UCCX
2 12 (14.81%) Cisco CUCM
3 8 (9.88%) Cisco Prime
4 5 (6.17%) EnCase
4 5 (6.17%) Nagios
5 1 (1.23%) Cisco UCCE
5 1 (1.23%) DameWare
5 1 (1.23%) HP Data Protector
5 1 (1.23%) MobiControl
5 1 (1.23%) SCCM
5 1 (1.23%) Symantec Endpoint Protection
Vendors
1 62 (76.54%) Cisco
2 21 (25.93%) Juniper
3 12 (14.81%) CheckPoint
4 11 (13.58%) SolarWinds
5 10 (12.35%) Microsoft
6 9 (11.11%) F5
6 9 (11.11%) Red Box
7 8 (9.88%) Infoblox
8 7 (8.64%) Avaya
9 6 (7.41%) Riverbed
10 5 (6.17%) Mitel
11 4 (4.94%) Citrix
12 3 (3.70%) Fortinet
12 3 (3.70%) Pegasus
12 3 (3.70%) Red Hat
12 3 (3.70%) Ruckus Wireless
12 3 (3.70%) VMware
13 2 (2.47%) BT
13 2 (2.47%) Sonus
13 2 (2.47%) Verint
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