The following table provides summary statistics for contract job vacancies advertised in England with a requirement for X.509 skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited X.509 over the 3 months to 29 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

X.509
UK > England
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 577 609 634
Rank change year-on-year +32 +25  
Contract jobs citing X.509 17 13 7
As % of all contract IT jobs advertised in England 0.039% 0.026% 0.014%
As % of the Communications & Networking category 0.28% 0.17% 0.093%
Number of daily rates quoted 15 4 5
England median daily rate £450 £331 £410
Median daily rate % change year-on-year +35.84% -19.20%  
10th Percentile £393 £313 £344
90th Percentile £541 £374 £463
UK median daily rate £450 £331 £410
% change year-on-year +35.84% -19.20%  
Number of hourly rates quoted 0 0 0
England median hourly rate - - -
UK median hourly rate - - -

X.509 is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
England
Contract job vacancies with a requirement for communications and computer networking skills 5986 7857 7508
As % of all contract IT job vacancies advertised in England 13.85% 15.94% 14.72%
Number of daily rates quoted 9429 12740 12161
England median daily rate £400 £400 £360
Median daily rate % change year-on-year - +11.11%  
10th Percentile £213 £228 £213
90th Percentile £575 £575 £525
UK median daily rate £400 £388 £355
% change year-on-year +3.09% +9.29%  
Number of hourly rates quoted 841 856 1030
England median hourly rate £24.86 £28.00 £22.50
Median hourly rate % change year-on-year -11.21% +24.44%  
10th Percentile £11.75 £11.75 £12.25
90th Percentile £52.50 £48.00 £45.03
UK median hourly rate £28.27 £28.50 £22.83
% change year-on-year -0.82% +24.83%  

X.509
Job Vacancy Trend in England

Job postings citing X.509 as a percentage of all IT jobs advertised in England.

Job vacancy trend for X.509 in England

X.509
Contractor Daily Rate Trend in England

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing X.509 in England.

Contractor daily rate trend for X.509 in England

X.509
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing X.509 in England over the 3 months to 29 June 2017.

Contractor daily rate histogram for X.509 in England

X.509
Contractor Hourly Rate Trend in England

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing X.509 in England.

Contractor hourly rate trend for X.509 in England

X.509
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing X.509 within the England region over the 3 months to 29 June 2017. 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 Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London +9 10 £450 +35.84%
North West - 5 £400 -
North of England - 5 £400 -
East of England -6 1 - -
West Midlands - 1 £425 -
Midlands - 1 £425 -
X.509
UK

For the 6 months to 29 June 2017, IT contractor jobs citing X.509 also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the England region with a requirement for X.509.

1 14 (51.85%) C#
2 13 (48.15%) LDAP
3 12 (44.44%) .NET
4 11 (40.74%) OAuth
5 10 (37.04%) Banking
5 10 (37.04%) SQL
6 9 (33.33%) SAML
7 8 (29.63%) XML
8 7 (25.93%) JavaScript
8 7 (25.93%) DNS
8 7 (25.93%) SQL Server Integration Services
9 6 (22.22%) jQuery
9 6 (22.22%) Spring
9 6 (22.22%) Microsoft Azure
9 6 (22.22%) SaaS
9 6 (22.22%) PaaS
9 6 (22.22%) Cucumber
9 6 (22.22%) HTTP
9 6 (22.22%) Finance
9 6 (22.22%) Identity Management
9 6 (22.22%) Hibernate
9 6 (22.22%) Project Management
9 6 (22.22%) JBoss
9 6 (22.22%) Java
9 6 (22.22%) Web Services
9 6 (22.22%) Oracle
9 6 (22.22%) JUnit
9 6 (22.22%) Mobile App
9 6 (22.22%) Mobile Application Development
9 6 (22.22%) Security Monitoring

X.509
Co-occurring IT Skills in England 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 6 (22.22%) JBoss
2 4 (14.81%) BizTalk Server
2 4 (14.81%) IIS
3 2 (7.41%) Apache
3 2 (7.41%) Tomcat
Business Applications
1 4 (14.81%) Dynamics CRM
Cloud Services
1 6 (22.22%) Microsoft Azure
1 6 (22.22%) PaaS
1 6 (22.22%) SaaS
2 3 (11.11%) Dynamics 365
3 2 (7.41%) Amazon AWS
3 2 (7.41%) Google Cloud Platform
4 1 (3.70%) Azure Active Directory
4 1 (3.70%) IaaS
Communications & Networking
1 13 (48.15%) LDAP
2 7 (25.93%) DNS
3 6 (22.22%) HTTP
4 4 (14.81%) HTTPS
4 4 (14.81%) TCP/IP
5 3 (11.11%) SSL
6 1 (3.70%) Cisco IOS
6 1 (3.70%) Cisco Wireless
6 1 (3.70%) DHCP
6 1 (3.70%) Internet
6 1 (3.70%) VLAN
6 1 (3.70%) Wireless
Database & Business Intelligence
1 7 (25.93%) SQL Server Integration Services
2 4 (14.81%) SQL Server
3 3 (11.11%) Bigtable
4 1 (3.70%) PostgreSQL
4 1 (3.70%) Relational Database
4 1 (3.70%) SQL Server Reporting Services
Development Applications
1 6 (22.22%) Cucumber
1 6 (22.22%) JUnit
2 4 (14.81%) Team Foundation Server
3 2 (7.41%) Git (software)
3 2 (7.41%) Jenkins
General
1 10 (37.04%) Banking
2 6 (22.22%) Finance
3 2 (7.41%) Advertising
Job Titles
1 8 (29.63%) Developer
2 7 (25.93%) Architect
3 5 (18.52%) Consultant
3 5 (18.52%) Infrastructure Architect
3 5 (18.52%) Infrastructure Solutions Architect
3 5 (18.52%) Solutions Architect
4 4 (14.81%) CRM Consultant
4 4 (14.81%) Dynamics CRM Consultant
4 4 (14.81%) Integration Consultant
4 4 (14.81%) Microsoft Consultant
4 4 (14.81%) Microsoft CRM Consultant
5 3 (11.11%) C# Developer
5 3 (11.11%) Implementation Manager
5 3 (11.11%) Technical Implementation Manager
5 3 (11.11%) Technical Manager
6 2 (7.41%) .NET Developer
6 2 (7.41%) Administrator
6 2 (7.41%) Linux Administrator
6 2 (7.41%) Linux Systems Administrator
6 2 (7.41%) Systems Administrator
Libraries, Frameworks & Software Standards
1 12 (44.44%) .NET
2 11 (40.74%) OAuth
3 9 (33.33%) SAML
4 8 (29.63%) XML
5 6 (22.22%) Hibernate
5 6 (22.22%) jQuery
5 6 (22.22%) Spring
5 6 (22.22%) Web Services
6 4 (14.81%) JSON
6 4 (14.81%) JSON Schema
6 4 (14.81%) LINQ
6 4 (14.81%) OAuth2
6 4 (14.81%) WCF
6 4 (14.81%) XML Messaging
6 4 (14.81%) XML Schema
6 4 (14.81%) XSD
7 3 (11.11%) Swagger
8 2 (7.41%) J2EE
8 2 (7.41%) Node.js
8 2 (7.41%) RESTful
Miscellaneous
1 6 (22.22%) Mobile App
2 4 (14.81%) Analytical Skills
3 2 (7.41%) Data Centre
3 2 (7.41%) PKI
4 1 (3.70%) Computer Science
4 1 (3.70%) Internet of Things
4 1 (3.70%) Smart City
4 1 (3.70%) Smartcard
Operating Systems
1 3 (11.11%) Linux
2 2 (7.41%) CentOS
2 2 (7.41%) Red Hat Enterprise Linux
2 2 (7.41%) Windows
2 2 (7.41%) Windows Server
3 1 (3.70%) Ubuntu
3 1 (3.70%) Windows 10
3 1 (3.70%) Windows 7
3 1 (3.70%) Windows Server 2012
Processes & Methodologies
1 6 (22.22%) Identity Management
1 6 (22.22%) Mobile Application Development
1 6 (22.22%) Project Management
1 6 (22.22%) Security Monitoring
2 5 (18.52%) Agile Software Development
3 4 (14.81%) BDD
3 4 (14.81%) CRM
3 4 (14.81%) Identity Access Management
3 4 (14.81%) IT Strategy
3 4 (14.81%) SDLC
3 4 (14.81%) Service Design
3 4 (14.81%) SOA
3 4 (14.81%) TDD
3 4 (14.81%) Virtual Infrastructure
3 4 (14.81%) Waterfall
4 3 (11.11%) Data Integration
4 3 (11.11%) ETL
5 2 (7.41%) Configuration Management
5 2 (7.41%) High Availability
5 2 (7.41%) Load Balancing
Programming Languages
1 14 (51.85%) C#
2 10 (37.04%) SQL
3 7 (25.93%) JavaScript
4 6 (22.22%) Java
5 3 (11.11%) PowerShell
6 2 (7.41%) Bash Shell
6 2 (7.41%) Perl
7 1 (3.70%) C
7 1 (3.70%) Python
Qualifications
1 2 (7.41%) Degree
1 2 (7.41%) Security Cleared
2 1 (3.70%) CWAP
2 1 (3.70%) Microsoft Certification
2 1 (3.70%) PRINCE2 Practitioner
2 1 (3.70%) SC Cleared
System Software
1 2 (7.41%) Active Directory
1 2 (7.41%) VMware Infrastructure
2 1 (3.70%) Docker
Systems Management
1 2 (7.41%) Nagios
1 2 (7.41%) Puppet
1 2 (7.41%) vCenter Server
Vendors
1 6 (22.22%) Oracle
2 5 (18.52%) Microsoft
3 4 (14.81%) Salesforce.com
3 4 (14.81%) SAP
4 2 (7.41%) HP
4 2 (7.41%) Red Hat
4 2 (7.41%) VMware
5 1 (3.70%) Cisco