Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for ISDN skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ISDN over the 6 months to 21 November 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)
England > London
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 595 584 577
Rank change year-on-year -11 -7 +10
Contract jobs citing ISDN 39 31 33
As % of all contract IT jobs advertised in London 0.083% 0.069% 0.071%
As % of the Communications & Networking category 0.72% 0.50% 0.56%
Number of daily rates quoted 25 20 16
London median daily rate £425 £354 £375
Median daily rate % change year-on-year +20.23% -5.73% +6.99%
10th Percentile £247 £187 £303
90th Percentile £523 £488 £438
England median daily rate £385 £338 £375
% change year-on-year +14.07% -10.00% +25.00%
Number of hourly rates quoted 2 1 1
London median hourly rate £33.80 £26.00 £18.00
Median hourly rate % change year-on-year +30.00% +44.44% -
England median hourly rate £33.80 £26.00 £17.25
% change year-on-year +30.00% +50.72% -28.48%

ISDN is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
London
Contract vacancies with a requirement for communications or computer networking skills 5435 6256 5870
As % of all contract IT jobs advertised in London 11.55% 13.92% 12.61%
Number of daily rates quoted 3650 4086 3878
London median daily rate £450 £448 £425
Median daily rate % change year-on-year +0.56% +5.29% +6.25%
10th Percentile £213 £255 £218
90th Percentile £625 £600 £588
England median daily rate £403 £400 £390
% change year-on-year +0.63% +2.56% +4.00%
Number of hourly rates quoted 146 141 177
London median hourly rate £19.57 £19.00 £18.70
Median hourly rate % change year-on-year +3.00% +1.60% +0.54%
10th Percentile £12.63 £11.50 £11.50
90th Percentile £48.29 £50.00 £44.25
England median hourly rate £18.56 £23.75 £20.50
% change year-on-year -21.84% +15.85% +2.50%

ISDN
Job Vacancy Trend in London

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

Job vacancy trend for ISDN in London

ISDN
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for ISDN in London

ISDN
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing ISDN in London over the 6 months to 21 November 2017.

Contractor daily rate histogram for ISDN in London

ISDN
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for ISDN in London

ISDN
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ISDN within the London region over the 6 months to 21 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +3 12 £426 +8.74% 1
West London - 6 £280 -
South London -30 1 - -
ISDN
England

For the 6 months to 21 November 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 across the London region with a requirement for ISDN.

1 29 (74.36%) Cisco
2 18 (46.15%) TCP/IP
3 17 (43.59%) Cisco Certification
4 16 (41.03%) VoIP
5 12 (30.77%) WAN
5 12 (30.77%) Microsoft
5 12 (30.77%) Firewall
6 11 (28.21%) VPN
6 11 (28.21%) Avaya
6 11 (28.21%) Network Management
7 10 (25.64%) Skype for Business
7 10 (25.64%) Cisco CUCM
7 10 (25.64%) H.323
7 10 (25.64%) CCNA
7 10 (25.64%) ITIL
7 10 (25.64%) VLAN
7 10 (25.64%) Cisco IOS
7 10 (25.64%) Wireless
8 9 (23.08%) Skype
8 9 (23.08%) Unified Communications
9 8 (20.51%) Telecoms
9 8 (20.51%) Network Security
9 8 (20.51%) PBX
10 7 (17.95%) Broadband
10 7 (17.95%) Ethernet
10 7 (17.95%) Video Conferencing
10 7 (17.95%) Security Cleared
10 7 (17.95%) Office 365
11 6 (15.38%) Network Monitoring
11 6 (15.38%) 802.1X

ISDN
Co-occurring IT Skills in London 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 (25.64%) Skype for Business
2 4 (10.26%) MS Exchange
3 1 (2.56%) CMS
3 1 (2.56%) Exchange Server 2010
Applications
1 1 (2.56%) Microsoft Office
Cloud Services
1 7 (17.95%) Office 365
2 1 (2.56%) Amazon AWS
2 1 (2.56%) Virtual Private Cloud
Communications & Networking
1 18 (46.15%) TCP/IP
2 16 (41.03%) VoIP
3 12 (30.77%) Firewall
3 12 (30.77%) WAN
4 11 (28.21%) VPN
5 10 (25.64%) Cisco IOS
5 10 (25.64%) H.323
5 10 (25.64%) VLAN
5 10 (25.64%) Wireless
6 9 (23.08%) Skype
6 9 (23.08%) Unified Communications
7 8 (20.51%) Network Security
7 8 (20.51%) PBX
8 7 (17.95%) Broadband
8 7 (17.95%) Ethernet
9 5 (12.82%) HSRP
9 5 (12.82%) LAN
9 5 (12.82%) QSIG
9 5 (12.82%) SNMP
10 4 (10.26%) DPNSS
General
1 8 (20.51%) Telecoms
2 6 (15.38%) Finance
3 4 (10.26%) Banking
4 1 (2.56%) Retail
Job Titles
1 11 (28.21%) Voice Engineer
2 10 (25.64%) Network Engineer
3 7 (17.95%) Cisco Engineer
4 5 (12.82%) Cisco Voice Engineer
4 5 (12.82%) Unified Communications Engineer
5 4 (10.26%) Analyst
5 4 (10.26%) Senior Cisco Engineer
5 4 (10.26%) Senior Voice Engineer
6 3 (7.69%) Network Analyst
6 3 (7.69%) NOC Engineer
6 3 (7.69%) Security Engineer
7 2 (5.13%) DV Cleared Network Engineer
7 2 (5.13%) Lync Engineer
7 2 (5.13%) Messaging Engineer
7 2 (5.13%) Senior Network Engineer
7 2 (5.13%) Senior Security Engineer
7 2 (5.13%) Voice Network Engineer
8 1 (2.56%) Audio Visual Engineer
8 1 (2.56%) LAN Engineer
8 1 (2.56%) Network Communications Engineer
Libraries, Frameworks & Software Standards
1 6 (15.38%) 802.1X
Miscellaneous
1 7 (17.95%) Video Conferencing
2 5 (12.82%) Analytical Skills
2 5 (12.82%) IVR
3 4 (10.26%) Computer Science
3 4 (10.26%) Management Information System
4 3 (7.69%) Data Centre
5 1 (2.56%) BYOD
5 1 (2.56%) Distributed Denial-of-Service
5 1 (2.56%) Handset
5 1 (2.56%) NHS
5 1 (2.56%) Virtual Team
Operating Systems
1 5 (12.82%) Windows
2 1 (2.56%) Linux
2 1 (2.56%) Red Hat Enterprise Linux
2 1 (2.56%) Windows 7
2 1 (2.56%) Windows XP
Processes & Methodologies
1 11 (28.21%) Network Management
2 10 (25.64%) ITIL
3 6 (15.38%) Incident Management
3 6 (15.38%) Network Monitoring
4 5 (12.82%) Digital Signal Processing
4 5 (12.82%) Network Design
4 5 (12.82%) Service Delivery
4 5 (12.82%) Signal Processing
5 4 (10.26%) Agile Software Development
5 4 (10.26%) Business Transformation
5 4 (10.26%) DNA
5 4 (10.26%) Information Management
5 4 (10.26%) Mentoring
5 4 (10.26%) Migration
5 4 (10.26%) Time Management
6 2 (5.13%) Change Control
7 1 (2.56%) Case Management
7 1 (2.56%) DDoS Mitigation
7 1 (2.56%) Kalman Filter
7 1 (2.56%) Virtual Infrastructure
Qualifications
1 17 (43.59%) Cisco Certification
2 10 (25.64%) CCNA
3 7 (17.95%) Security Cleared
4 6 (15.38%) CCVP
4 6 (15.38%) DV Cleared
5 5 (12.82%) CCIE
6 4 (10.26%) CCNP
6 4 (10.26%) Computer Science Degree
6 4 (10.26%) Degree
Quality Assurance & Compliance
1 4 (10.26%) SLA
2 1 (2.56%) COBIT
System Software
1 1 (2.56%) VMware ESXi
1 1 (2.56%) VMware Infrastructure
Systems Management
1 10 (25.64%) Cisco CUCM
2 6 (15.38%) Cisco Prime
3 3 (7.69%) Cisco UCCX
4 1 (2.56%) CA Spectrum
4 1 (2.56%) Cisco UCCE
4 1 (2.56%) EnCase
4 1 (2.56%) Nagios
Vendors
1 29 (74.36%) Cisco
2 12 (30.77%) Microsoft
3 11 (28.21%) Avaya
4 5 (12.82%) Genesys
4 5 (12.82%) Juniper
4 5 (12.82%) SolarWinds
5 4 (10.26%) Polycom
6 3 (7.69%) Sonus
7 2 (5.13%) BT
7 2 (5.13%) CheckPoint
7 2 (5.13%) Citrix
8 1 (2.56%) Blue Coat
8 1 (2.56%) CA
8 1 (2.56%) F5
8 1 (2.56%) Infoblox
8 1 (2.56%) Red Hat
8 1 (2.56%) Riverbed
8 1 (2.56%) Siemens
8 1 (2.56%) Symantec
8 1 (2.56%) VMware