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 4 May 2016 with a comparison to the same period over the previous 2 years.

3 months to
4 May 2016
Same period 2015 Same period 2014
X.21
Rank 950 951 982
Rank change year-on-year
+1 +31
Permanent jobs citing X.21 4 14 9
As % of all permanent IT jobs located in the UK 0.004% 0.013% 0.008%
As % of the Communications & Networking category 0.023% 0.070% 0.044%
Number of salaries quoted 2 14 9
Median salary £30,000 £50,000 £30,000
Median salary % change year-on-year
-40.00% +66.66%
90% offered a salary of more than £28,000 £40,350 £24,250
10% offered a salary of more than £32,000 £52,500 £36,000
UK excluding London median salary £27,500 £50,000 £30,000
% change year-on-year
-45.00% +66.66%

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
17715 20057 20420
As % of all permanent IT jobs located in the UK 17.26% 18.19% 17.11%
Number of salaries quoted 14702 15885 16189
Median salary £45,000 £45,000 £42,500
Median salary % change year-on-year
- +5.88%
90% offered a salary of more than £26,500 £27,500 £26,500
10% offered a salary of more than £66,000 £62,500 £67,500
UK excluding London median salary £42,500 £42,000 £40,000
% change year-on-year
+1.19% +5.00%

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 7 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 4 May 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 +9 4 £30,000 -40.00%
West Midlands - 2 - -
Berkshire +13 1 £27,500 -45.00%
South East +12 1 £27,500 -45.00%
Birmingham - 1 - -
Solihull - 1 - -
London - 1 £32,500 -

X.21
Top 30 Related IT Skills

For the 6 months to 4 May 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 12 (80.00%) BGP
2 11 (73.33%) MPLS
2 11 (73.33%) Cisco
2 11 (73.33%) VPN
2 11 (73.33%) Firewall
3 10 (66.67%) Ethernet
4 9 (60.00%) OSPF
4 9 (60.00%) IPsec
5 8 (53.33%) DSL
5 8 (53.33%) PPP
6 7 (46.67%) WAN
7 6 (40.00%) Juniper
7 6 (40.00%) Load Balancing
8 5 (33.33%) Cisco Certification
8 5 (33.33%) ATM
8 5 (33.33%) ISDN
9 4 (26.67%) LAN
9 4 (26.67%) PBX
9 4 (26.67%) SNMP
9 4 (26.67%) SLA
9 4 (26.67%) JNCIA
9 4 (26.67%) Service Management
9 4 (26.67%) Structured Cabling
9 4 (26.67%) SC Cleared
9 4 (26.67%) Security Cleared
10 3 (20.00%) xDSL
10 3 (20.00%) Network Management
10 3 (20.00%) Data Centre
10 3 (20.00%) L2TP
10 3 (20.00%) CCNP

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:

Communications & Networking
1 12 (80.00%) BGP
2 11 (73.33%) Firewall
2 11 (73.33%) MPLS
2 11 (73.33%) VPN
3 10 (66.67%) Ethernet
4 9 (60.00%) IPsec
4 9 (60.00%) OSPF
5 8 (53.33%) DSL
5 8 (53.33%) PPP
6 7 (46.67%) WAN
7 5 (33.33%) ATM
7 5 (33.33%) ISDN
8 4 (26.67%) LAN
8 4 (26.67%) PBX
8 4 (26.67%) SNMP
8 4 (26.67%) Structured Cabling
9 3 (20.00%) L2TP
9 3 (20.00%) xDSL
10 1 (6.67%) BGP-4
10 1 (6.67%) Cisco IOS
General
1 1 (6.67%) Legal
1 1 (6.67%) Telecoms
Job Titles
1 7 (46.67%) Network Engineer
2 5 (33.33%) NOC Engineer
3 4 (26.67%) Cisco Engineer
4 3 (20.00%) Cisco Network Engineer
5 2 (13.33%) Designer
5 2 (13.33%) Network Designer
5 2 (13.33%) Senior Network Engineer
6 1 (6.67%) 2nd Line Engineer
6 1 (6.67%) Firewall Engineer
6 1 (6.67%) Juniper Engineer
6 1 (6.67%) Network Operations Engineer
6 1 (6.67%) Operations Engineer
6 1 (6.67%) SC Cleared Network Engineer
6 1 (6.67%) Support Engineer
6 1 (6.67%) Technical Engineer
6 1 (6.67%) Technical Support
6 1 (6.67%) Technical Support Engineer
Miscellaneous
1 3 (20.00%) Data Centre
Operating Systems
1 1 (6.67%) Unix
Processes & Methodologies
1 6 (40.00%) Load Balancing
2 4 (26.67%) Service Management
3 3 (20.00%) Change Management
3 3 (20.00%) ITIL
3 3 (20.00%) Network Management
4 1 (6.67%) Facilities Management
4 1 (6.67%) Line Management
4 1 (6.67%) Migration
4 1 (6.67%) Network Monitoring
4 1 (6.67%) Project Management
4 1 (6.67%) Service Delivery
4 1 (6.67%) Stress Testing
Qualifications
1 5 (33.33%) Cisco Certification
2 4 (26.67%) JNCIA
2 4 (26.67%) SC Cleared
2 4 (26.67%) Security Cleared
3 3 (20.00%) CCNA
3 3 (20.00%) CCNP
4 1 (6.67%) CCDP
Quality Assurance & Compliance
1 4 (26.67%) SLA
Vendors
1 11 (73.33%) Cisco
2 6 (40.00%) Juniper
3 1 (6.67%) Brocade
3 1 (6.67%) EMC
3 1 (6.67%) F5
3 1 (6.67%) Mitel
3 1 (6.67%) VMware