Period
to 23 July 2017

The following table provides summary statistics for permanent job vacancies with a requirement for X.21 skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited X.21 over the 6 months to 23 July 2017 with a comparison to the same period in the previous 2 years.

X.21
UK
6 months to
23 Jul 2017
Same period 2016 Same period 2015
Rank 1170 1249 1300
Rank change year-on-year +79 +51 +13
Permanent jobs citing X.21 2 11 15
As % of all permanent IT jobs advertised in the UK 0.001% 0.005% 0.007%
As % of the Communications & Networking category 0.007% 0.032% 0.038%
Number of salaries quoted 0 4 15
UK median annual salary - £37,500 £50,000
Median salary % change year-on-year - -25.00% +69.49%
UK excluding London median annual salary - £38,750 £50,000
% change year-on-year - -22.50% +66.67%

X.21 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 with a requirement for communications and computer networking skills.

Communications & Computer Network Skills
UK
Permanent job vacancies with a requirement for communications and computer networking skills 28247 34419 39044
As % of all permanent IT job vacancies advertised in the UK 15.93% 17.01% 17.64%
Number of salaries quoted 22904 28591 31507
UK median annual salary £45,000 £45,000 £45,000
10th Percentile £25,750 £25,500 £25,000
90th Percentile £72,500 £71,250 £70,000
UK excluding London median annual salary £40,000 £40,000 £40,000

X.21
Job Vacancy Trend

Job postings citing X.21 as a percentage of all IT jobs advertised.

Job vacancy trend for X.21 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.

Salary trend for X.21 in the UK

X.21
Top 3 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 6 months to 23 July 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
South East +80 2 - -
England +74 2 - - 1
UK excluding London +52 2 - -

For the 6 months to 23 July 2017, 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 2 (100.00%) ITIL
1 2 (100.00%) WAN
1 2 (100.00%) Ethernet
1 2 (100.00%) PPP
1 2 (100.00%) SNMP
1 2 (100.00%) Cisco
1 2 (100.00%) CCNA
1 2 (100.00%) Cisco Certification
1 2 (100.00%) MPLS
1 2 (100.00%) OSPF
1 2 (100.00%) BGP
1 2 (100.00%) DSL
1 2 (100.00%) L2TP
1 2 (100.00%) Change Management
1 2 (100.00%) Firewall
1 2 (100.00%) ITSM
1 2 (100.00%) IPsec
1 2 (100.00%) xDSL
1 2 (100.00%) Network Management

X.21
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:

Communications & Networking
1 2 (100.00%) BGP
1 2 (100.00%) DSL
1 2 (100.00%) Ethernet
1 2 (100.00%) Firewall
1 2 (100.00%) IPsec
1 2 (100.00%) L2TP
1 2 (100.00%) MPLS
1 2 (100.00%) OSPF
1 2 (100.00%) PPP
1 2 (100.00%) SNMP
1 2 (100.00%) WAN
1 2 (100.00%) xDSL
Job Titles
1 2 (100.00%) Network Engineer
1 2 (100.00%) Network Operations Engineer
1 2 (100.00%) Operations Engineer
Processes & Methodologies
1 2 (100.00%) Change Management
1 2 (100.00%) ITIL
1 2 (100.00%) ITSM
1 2 (100.00%) Network Management
Qualifications
1 2 (100.00%) CCNA
1 2 (100.00%) Cisco Certification
Vendors
1 2 (100.00%) Cisco