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

3 months to
28 May 2016
Same period 2015 Same period 2014
X.21
Rank 904 955 1005
Rank change year-on-year
+51 +50
Permanent jobs citing X.21 5 10 8
As % of all permanent IT jobs located in the UK 0.005% 0.009% 0.007%
As % of the Communications & Networking category 0.029% 0.052% 0.039%
Number of salaries quoted 3 10 8
Median salary £32,500 £50,000 £26,125
Median salary % change year-on-year
-35.00% +91.38%
90% offered a salary of more than £28,500 £49,350 £24,250
10% offered a salary of more than £46,500 £52,500 £39,450
UK excluding London median salary £38,750 £50,000 £28,000
% change year-on-year
-22.50% +78.57%

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
17097 19355 20378
As % of all permanent IT jobs located in the UK 17.15% 17.91% 17.23%
Number of salaries quoted 14201 15521 16305
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 £27,000 £27,000
10% offered a salary of more than £67,500 £62,500 £67,500
UK excluding London median salary £42,500 £42,500 £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
Salary Histogram

This chart provides a salary histogram for IT jobs citing X.21 over the 3 months to 28 May 2016 within the UK.

X.21 Salary Histogram in the UK

X.21
Top 8 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 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 +18 5 £32,500 -35.00% 1
South East +16 3 £38,750 -24.39% 1
Berkshire +7 2 £27,500 -46.34% 1
Reading +12 1 - - 1
West Midlands - 1 - -
Hampshire - 1 £50,000 -
Birmingham - 1 - -
London - 1 £32,500 -

X.21
Top 30 Related IT Skills

For the 6 months to 28 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 8 (66.67%) Cisco
1 8 (66.67%) VPN
1 8 (66.67%) BGP
1 8 (66.67%) Firewall
2 7 (58.33%) MPLS
3 6 (50.00%) WAN
3 6 (50.00%) Ethernet
4 5 (41.67%) OSPF
4 5 (41.67%) Juniper
4 5 (41.67%) IPsec
4 5 (41.67%) SC Cleared
4 5 (41.67%) Security Cleared
5 4 (33.33%) JNCIA
5 4 (33.33%) Cisco Certification
5 4 (33.33%) DSL
5 4 (33.33%) PPP
5 4 (33.33%) LAN
5 4 (33.33%) PBX
5 4 (33.33%) Structured Cabling
6 3 (25.00%) Load Balancing
6 3 (25.00%) SNMP
7 2 (16.67%) Change Management
7 2 (16.67%) ATM
7 2 (16.67%) ISDN
7 2 (16.67%) ITIL
7 2 (16.67%) L2TP
7 2 (16.67%) DNS
7 2 (16.67%) CCNP
7 2 (16.67%) CCNA
7 2 (16.67%) xDSL

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 (8.33%) Amazon S3
Communications & Networking
1 8 (66.67%) BGP
1 8 (66.67%) Firewall
1 8 (66.67%) VPN
2 7 (58.33%) MPLS
3 6 (50.00%) Ethernet
3 6 (50.00%) WAN
4 5 (41.67%) IPsec
4 5 (41.67%) OSPF
5 4 (33.33%) DSL
5 4 (33.33%) LAN
5 4 (33.33%) PBX
5 4 (33.33%) PPP
5 4 (33.33%) Structured Cabling
6 3 (25.00%) SNMP
7 2 (16.67%) ATM
7 2 (16.67%) DNS
7 2 (16.67%) ISDN
7 2 (16.67%) L2TP
7 2 (16.67%) xDSL
8 1 (8.33%) Junos
General
1 1 (8.33%) Billing
1 1 (8.33%) Legal
1 1 (8.33%) Telecoms
Job Titles
1 4 (33.33%) Network Engineer
2 3 (25.00%) NOC Engineer
3 2 (16.67%) Cisco Engineer
3 2 (16.67%) Designer
3 2 (16.67%) Network Designer
3 2 (16.67%) Senior Network Engineer
4 1 (8.33%) 2nd Line Engineer
4 1 (8.33%) Cisco Network Engineer
4 1 (8.33%) Cloud Specialist
4 1 (8.33%) Firewall Engineer
4 1 (8.33%) Juniper Engineer
4 1 (8.33%) Network Operations Engineer
4 1 (8.33%) Operations Engineer
4 1 (8.33%) SC Cleared Network Engineer
4 1 (8.33%) Storage Specialist
4 1 (8.33%) Support Engineer
4 1 (8.33%) Technical Engineer
4 1 (8.33%) Technical Support
4 1 (8.33%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 1 (8.33%) REST
Miscellaneous
1 2 (16.67%) Data Centre
2 1 (8.33%) EMC VNX
2 1 (8.33%) Replication
2 1 (8.33%) VCE vBlock
Operating Systems
1 1 (8.33%) Unix
1 1 (8.33%) VMS
Processes & Methodologies
1 3 (25.00%) Load Balancing
2 2 (16.67%) Change Management
2 2 (16.67%) ITIL
2 2 (16.67%) Network Management
3 1 (8.33%) Disaster Recovery
3 1 (8.33%) Facilities Management
3 1 (8.33%) ITSM
3 1 (8.33%) Line Management
3 1 (8.33%) Migration
3 1 (8.33%) Network Monitoring
3 1 (8.33%) Performance Monitoring
3 1 (8.33%) Performance Tuning
3 1 (8.33%) Project Management
3 1 (8.33%) Service Delivery
3 1 (8.33%) Service Management
Programming Languages
1 1 (8.33%) SQL
Qualifications
1 5 (41.67%) SC Cleared
1 5 (41.67%) Security Cleared
2 4 (33.33%) Cisco Certification
2 4 (33.33%) JNCIA
3 2 (16.67%) CCNA
3 2 (16.67%) CCNP
4 1 (8.33%) CCDP
Quality Assurance & Compliance
1 1 (8.33%) SLA
System Software
1 1 (8.33%) Firmware
1 1 (8.33%) NFS
1 1 (8.33%) VMware ESX
1 1 (8.33%) VMware Infrastructure
1 1 (8.33%) vSphere
Vendors
1 8 (66.67%) Cisco
2 5 (41.67%) Juniper
3 1 (8.33%) Brocade
3 1 (8.33%) EMC
3 1 (8.33%) Isilon
3 1 (8.33%) Oracle
3 1 (8.33%) VMware
Reading, Berkshire
Lorien Resourcing
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