The table below looks at the statistics for X.21 skills in IT jobs advertised across the UK. Included is a guide to the salaries offered in IT jobs that have cited X.21 over the 3 months to 28 August 2016 with a comparison to the same period over the previous 2 years.

3 months to
28 Aug 2016
Same period 2015 Same period 2014
X.21
Rank 897 976 986
Rank change year-on-year
+79 +10
Permanent jobs citing X.21 2 1 8
As % of all permanent IT jobs located in the UK 0.002% 0.001% 0.007%
As % of the Communications & Networking category 0.012% 0.005% 0.038%
Number of salaries quoted 0 1 8
Median salary - £39,000 £29,000
Median salary % change year-on-year
- +34.48%
UK excluding London median salary - - £29,000

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
16248 18278 21090
As % of all permanent IT jobs located in the UK 16.86% 16.71% 18.15%
Number of salaries quoted 13439 15159 16659
Median salary £45,000 £45,000 £44,069
Median salary % change year-on-year
- +2.11%
90% offered a salary of more than £27,500 £26,500 £26,500
10% offered a salary of more than £67,500 £65,000 £70,000
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year
+6.25% -

X.21
Jobs Demand Trend

The demand trend of job ads citing X.21 as a proportion of all IT jobs with a match in the Communications & Networking category.

X.21 Jobs Demand Trend in the UK

X.21
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing X.21 within the UK.

X.21 Salary Trend in the UK

X.21
Top 4 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing X.21 within the UK over the 3 months to 28 August 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
England +67 2 - -
Reading - 2 - -
Berkshire - 2 - -
South East - 2 - -

X.21
Top 30 Related IT Skills

For the 6 months to 28 August 2016, IT jobs citing X.21 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 X.21.

1 6 (85.71%) Cisco
1 6 (85.71%) BGP
1 6 (85.71%) Firewall
2 5 (71.43%) MPLS
2 5 (71.43%) OSPF
2 5 (71.43%) DSL
2 5 (71.43%) Cisco Certification
2 5 (71.43%) IPsec
2 5 (71.43%) PPP
2 5 (71.43%) WAN
3 4 (57.14%) ITIL
3 4 (57.14%) SNMP
3 4 (57.14%) Ethernet
3 4 (57.14%) CCNA
3 4 (57.14%) L2TP
3 4 (57.14%) Change Management
3 4 (57.14%) Network Management
3 4 (57.14%) xDSL
4 3 (42.86%) ITSM
5 2 (28.57%) SC Cleared
5 2 (28.57%) Security Cleared
6 1 (14.29%) VMware Infrastructure
6 1 (14.29%) Amazon S3
6 1 (14.29%) Disaster Recovery
6 1 (14.29%) REST
6 1 (14.29%) Performance Tuning
6 1 (14.29%) Performance Monitoring
6 1 (14.29%) Network Monitoring
6 1 (14.29%) Structured Cabling
6 1 (14.29%) Data Centre

X.21
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:

Cloud Services
1 1 (14.29%) Amazon S3
Communications & Networking
1 6 (85.71%) BGP
1 6 (85.71%) Firewall
2 5 (71.43%) DSL
2 5 (71.43%) IPsec
2 5 (71.43%) MPLS
2 5 (71.43%) OSPF
2 5 (71.43%) PPP
2 5 (71.43%) WAN
3 4 (57.14%) Ethernet
3 4 (57.14%) L2TP
3 4 (57.14%) SNMP
3 4 (57.14%) xDSL
4 1 (14.29%) ATM
4 1 (14.29%) DNS
4 1 (14.29%) ISDN
4 1 (14.29%) LAN
4 1 (14.29%) PBX
4 1 (14.29%) Structured Cabling
4 1 (14.29%) VPN
General
1 1 (14.29%) Billing
Job Titles
1 3 (42.86%) Network Engineer
1 3 (42.86%) Network Operations Engineer
1 3 (42.86%) Operations Engineer
2 1 (14.29%) 2nd Line Engineer
2 1 (14.29%) Cisco Engineer
2 1 (14.29%) Cloud Specialist
2 1 (14.29%) Designer
2 1 (14.29%) Network Designer
2 1 (14.29%) Storage Specialist
2 1 (14.29%) Support Engineer
2 1 (14.29%) Technical Engineer
2 1 (14.29%) Technical Support
2 1 (14.29%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 1 (14.29%) REST
Miscellaneous
1 1 (14.29%) Data Centre
1 1 (14.29%) EMC VNX
1 1 (14.29%) Replication
1 1 (14.29%) VCE vBlock
Operating Systems
1 1 (14.29%) VMS
Processes & Methodologies
1 4 (57.14%) Change Management
1 4 (57.14%) ITIL
1 4 (57.14%) Network Management
2 3 (42.86%) ITSM
3 1 (14.29%) Disaster Recovery
3 1 (14.29%) Network Monitoring
3 1 (14.29%) Performance Monitoring
3 1 (14.29%) Performance Tuning
Programming Languages
1 1 (14.29%) SQL
Qualifications
1 5 (71.43%) Cisco Certification
2 4 (57.14%) CCNA
3 2 (28.57%) SC Cleared
3 2 (28.57%) Security Cleared
4 1 (14.29%) CCDP
4 1 (14.29%) CCNP
4 1 (14.29%) JNCIA
System Software
1 1 (14.29%) Firmware
1 1 (14.29%) NFS
1 1 (14.29%) VMware ESX
1 1 (14.29%) VMware Infrastructure
1 1 (14.29%) vSphere
Vendors
1 6 (85.71%) Cisco
2 1 (14.29%) EMC
2 1 (14.29%) Isilon
2 1 (14.29%) Juniper
2 1 (14.29%) Oracle
2 1 (14.29%) VMware