The following table provides summary statistics for permanent job vacancies advertised in Leeds with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 3 months to 23 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Integrated Service Digital Network (ISDN)
Rank 151 170 183
Rank change year-on-year +19 +13  
Permanent jobs citing ISDN 7 1 4
As % of all permanent IT jobs advertised in Leeds 0.27% 0.031% 0.11%
As % of the Communications & Networking category 2.44% 0.23% 0.60%
Number of salaries quoted 7 1 4
Median salary £50,000 £48,500 £35,000
Median salary % change year-on-year +3.09% +38.57%  
UK excluding London median salary £45,000 £37,000 £42,500
% change year-on-year +21.62% -12.94%  

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 permanent job vacancies advertised in Leeds with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
Leeds
Permanent job vacancies with a requirement for communications and computer networking skills 287 427 665
As % of all permanent IT job vacancies advertised in Leeds 11.17% 13.04% 18.26%
Number of salaries quoted 252 371 528
Median salary £37,500 £45,000 £40,000
Median salary % change year-on-year -16.66% +12.50%  
90% offered a salary of more than £22,500 £31,000 £27,500
10% offered a salary of more than £55,000 £60,000 £55,000
UK excluding London median salary £40,000 £42,500 £41,000
% change year-on-year -5.88% +3.65%  

ISDN
Job Vacancy Trend in Leeds

The job posting trend of jobs advertised in Leeds citing ISDN as a proportion of all permanent or contract IT jobs with a match in the Communications & Networking category.

Job vacancy trend for ISDN in Leeds

ISDN
Salary Trend in Leeds

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

Salary trend for ISDN in Leeds

ISDN
Top 30 Related IT Skills in Leeds

For the 6 months to 23 March 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 across the Leeds region with a requirement for ISDN.

1 11 (91.67%) Unix
1 11 (91.67%) Windows
1 11 (91.67%) Linux
1 11 (91.67%) MS Excel
1 11 (91.67%) SharePoint
1 11 (91.67%) MS Exchange
1 11 (91.67%) SQL Server
1 11 (91.67%) VoIP
1 11 (91.67%) Microsoft
1 11 (91.67%) Active Directory
1 11 (91.67%) Disaster Recovery
1 11 (91.67%) VMware
1 11 (91.67%) Exchange Server 2007
1 11 (91.67%) VMware Infrastructure
1 11 (91.67%) SQL Server 2008
1 11 (91.67%) Hyper-V
1 11 (91.67%) Microsoft Azure
1 11 (91.67%) Skype for Business
1 11 (91.67%) Windows Server 2012
1 11 (91.67%) Windows Server
2 9 (75.00%) Windows Server 2008
2 9 (75.00%) SQL Server 2012
2 9 (75.00%) Exchange Server 2013
2 9 (75.00%) Data Centre
2 9 (75.00%) Dell Compellent
2 9 (75.00%) Nimble Storage
2 9 (75.00%) Presales
2 9 (75.00%) Exchange Server 2010
2 9 (75.00%) Change Control
2 9 (75.00%) NAS

ISDN
Top Related IT Skills in Leeds 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 11 (91.67%) Exchange Server 2007
1 11 (91.67%) MS Exchange
1 11 (91.67%) SharePoint
1 11 (91.67%) Skype for Business
2 9 (75.00%) Exchange Server 2010
2 9 (75.00%) Exchange Server 2013
3 2 (16.67%) IIS
Applications
1 11 (91.67%) MS Excel
Cloud Services
1 11 (91.67%) Microsoft Azure
Communications & Networking
1 11 (91.67%) VoIP
2 9 (75.00%) NAS
2 9 (75.00%) SAN
2 9 (75.00%) VPN
3 2 (16.67%) Cisco ASA
3 2 (16.67%) DHCP
3 2 (16.67%) DNS
3 2 (16.67%) Firewall
3 2 (16.67%) LAN
3 2 (16.67%) Wireless
4 1 (8.33%) IP Telephony
Database & Business Intelligence
1 11 (91.67%) SQL Server
1 11 (91.67%) SQL Server 2008
2 9 (75.00%) SQL Server 2005
2 9 (75.00%) SQL Server 2012
3 2 (16.67%) Amazon RDS
General
1 1 (8.33%) Finance
Job Titles
1 9 (75.00%) Active Directory Engineer
1 9 (75.00%) Citrix Engineer
1 9 (75.00%) Citrix Server Engineer
1 9 (75.00%) Exchange Engineer
1 9 (75.00%) SAN Engineer
1 9 (75.00%) Senior Active Directory Engineer
1 9 (75.00%) Senior Citrix Engineer
1 9 (75.00%) Senior Exchange Engineer
1 9 (75.00%) Senior Technical Engineer
1 9 (75.00%) Senior VMware Engineer
1 9 (75.00%) Technical Engineer
1 9 (75.00%) VMware Engineer
2 2 (16.67%) Infrastructure Engineer
2 2 (16.67%) IT Engineer
2 2 (16.67%) IT Infrastructure Engineer
2 2 (16.67%) Project Engineer
2 2 (16.67%) Server Engineer
2 2 (16.67%) Windows Engineer
2 2 (16.67%) Windows Infrastructure Engineer
2 2 (16.67%) Windows Server Engineer
Miscellaneous
1 9 (75.00%) Clustering
1 9 (75.00%) Data Centre
2 2 (16.67%) Management Information System
2 2 (16.67%) PKI
Operating Systems
1 11 (91.67%) Linux
1 11 (91.67%) Unix
1 11 (91.67%) Windows
1 11 (91.67%) Windows Server
1 11 (91.67%) Windows Server 2012
2 9 (75.00%) Windows Server 2003
2 9 (75.00%) Windows Server 2008
Processes & Methodologies
1 11 (91.67%) Disaster Recovery
2 9 (75.00%) Change Control
2 9 (75.00%) Presales
2 9 (75.00%) Service Delivery
2 9 (75.00%) Technical Architecture
3 2 (16.67%) Change Management
3 2 (16.67%) Configuration Management
3 2 (16.67%) ITIL
3 2 (16.67%) Knowledge Management
4 1 (8.33%) Incident Management
4 1 (8.33%) Migration
4 1 (8.33%) Root Cause Analysis
Qualifications
1 2 (16.67%) SC Cleared
1 2 (16.67%) Security Cleared
2 1 (8.33%) CCNA
2 1 (8.33%) CCNP
2 1 (8.33%) Cisco Certification
System Software
1 11 (91.67%) Active Directory
1 11 (91.67%) Hyper-V
1 11 (91.67%) VMware Infrastructure
2 9 (75.00%) XenApp
3 2 (16.67%) vSphere
Systems Management
1 1 (8.33%) Cisco CUCM
1 1 (8.33%) Cisco UCCE
Vendors
1 11 (91.67%) Microsoft
1 11 (91.67%) VMware
2 9 (75.00%) Citrix
2 9 (75.00%) Civica
2 9 (75.00%) CommVault
2 9 (75.00%) Dell Compellent
2 9 (75.00%) NetApp
2 9 (75.00%) Nimble Storage
3 3 (25.00%) Cisco