The following table provides summary statistics for contract job vacancies advertised in London 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 27 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
England / London
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 414 421 430
Rank change year-on-year +7 +9  
Contract jobs citing X.509 10 6 4
As % of all contract IT jobs advertised in London 0.048% 0.028% 0.017%
As % of the Communications & Networking category 0.43% 0.20% 0.13%
Number of daily rates quoted 10 4 1
Median daily rate £450 £331 £355
Median daily rate % change year-on-year +35.84% -6.69%  
UK excluding London median daily rate £400 £475 £418
% change year-on-year -15.78% +13.77%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London 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 London with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
London
Contract job vacancies with a requirement for communications and computer networking skills 2303 3014 3064
As % of all contract IT job vacancies advertised in London 11.06% 13.84% 13.30%
Number of daily rates quoted 1536 2050 1982
Median daily rate £450 £430 £388
Median daily rate % change year-on-year +4.65% +10.96%  
90% offered a daily rate of more than £238 £250 £225
10% offered a daily rate of more than £600 £585 £550
UK excluding London median daily rate £375 £365 £340
% change year-on-year +2.73% +7.35%  
Number of hourly rates quoted 67 48 91
Median hourly rate £24.86 £22.00 £19.72
Median hourly rate % change year-on-year +13.00% +11.59%  
90% offered a hourly rate of more than £14.83 £11.80 £13.00
10% offered a hourly rate of more than £50.00 £42.50 £50.00
UK excluding London median hourly rate £30.00 £31.50 £24.00
% change year-on-year -4.76% +31.25%  

X.509
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing X.509 as a proportion of all contract or permanent IT jobs with a match in the Communications & Networking category.

Job vacancy trend for X.509 in London

X.509
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for X.509 in London

X.509
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing X.509 in London over the 3 months to 27 June 2017.

Contractor daily rate histogram for X.509 in London

X.509
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for X.509 in London

X.509
Contract Job Locations in London

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 London region over the 3 months to 27 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
City of London 0 3 £500 +53.84%
X.509
England

For the 6 months to 27 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 London region with a requirement for X.509.

1 12 (63.16%) LDAP
2 10 (52.63%) OAuth
3 9 (47.37%) C#
4 8 (42.11%) XML
4 8 (42.11%) SAML
5 7 (36.84%) .NET
5 7 (36.84%) SQL Server Integration Services
6 6 (31.58%) Microsoft Azure
6 6 (31.58%) SaaS
6 6 (31.58%) PaaS
6 6 (31.58%) Security Monitoring
6 6 (31.58%) DNS
6 6 (31.58%) HTTP
6 6 (31.58%) Web Services
6 6 (31.58%) Identity Management
6 6 (31.58%) Finance
7 5 (26.32%) Banking
7 5 (26.32%) SQL
8 4 (21.05%) Waterfall
8 4 (21.05%) BDD
8 4 (21.05%) OAuth2
8 4 (21.05%) Team Foundation Server
8 4 (21.05%) JSON
8 4 (21.05%) WCF
8 4 (21.05%) LINQ
8 4 (21.05%) IT Strategy
8 4 (21.05%) Service Design
8 4 (21.05%) Virtual Infrastructure
8 4 (21.05%) Analytical Skills
8 4 (21.05%) SDLC

X.509
Co-occurring IT Skills in London 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 4 (21.05%) BizTalk Server
1 4 (21.05%) IIS
2 2 (10.53%) Apache
2 2 (10.53%) Tomcat
3 1 (5.26%) JBoss
Business Applications
1 4 (21.05%) Dynamics CRM
Cloud Services
1 6 (31.58%) Microsoft Azure
1 6 (31.58%) PaaS
1 6 (31.58%) SaaS
2 3 (15.79%) Dynamics 365
3 2 (10.53%) Amazon AWS
3 2 (10.53%) Google Cloud Platform
4 1 (5.26%) Azure Active Directory
4 1 (5.26%) IaaS
Communications & Networking
1 12 (63.16%) LDAP
2 6 (31.58%) DNS
2 6 (31.58%) HTTP
3 4 (21.05%) HTTPS
4 2 (10.53%) SSL
4 2 (10.53%) TCP/IP
Database & Business Intelligence
1 7 (36.84%) SQL Server Integration Services
2 4 (21.05%) SQL Server
3 3 (15.79%) Bigtable
4 1 (5.26%) SQL Server Reporting Services
Development Applications
1 4 (21.05%) Team Foundation Server
2 2 (10.53%) Git (software)
2 2 (10.53%) Jenkins
3 1 (5.26%) Cucumber
3 1 (5.26%) JUnit
General
1 6 (31.58%) Finance
2 5 (26.32%) Banking
3 2 (10.53%) Advertising
Job Titles
1 6 (31.58%) Architect
1 6 (31.58%) Developer
2 5 (26.32%) Infrastructure Architect
2 5 (26.32%) Infrastructure Solutions Architect
2 5 (26.32%) Solutions Architect
3 4 (21.05%) Consultant
3 4 (21.05%) CRM Consultant
3 4 (21.05%) Dynamics CRM Consultant
3 4 (21.05%) Integration Consultant
3 4 (21.05%) Microsoft Consultant
3 4 (21.05%) Microsoft CRM Consultant
4 3 (15.79%) C# Developer
5 2 (10.53%) .NET Developer
5 2 (10.53%) Administrator
5 2 (10.53%) Automation Developer
5 2 (10.53%) C# .NET Developer
5 2 (10.53%) Linux Administrator
5 2 (10.53%) Linux Systems Administrator
5 2 (10.53%) Systems Administrator
6 1 (5.26%) DevOps Developer
Libraries, Frameworks & Software Standards
1 10 (52.63%) OAuth
2 8 (42.11%) SAML
2 8 (42.11%) XML
3 7 (36.84%) .NET
4 6 (31.58%) Web Services
5 4 (21.05%) JSON
5 4 (21.05%) JSON Schema
5 4 (21.05%) LINQ
5 4 (21.05%) OAuth2
5 4 (21.05%) WCF
5 4 (21.05%) XML Messaging
5 4 (21.05%) XML Schema
5 4 (21.05%) XSD
6 3 (15.79%) Swagger
7 2 (10.53%) Node.js
7 2 (10.53%) RESTful
8 1 (5.26%) Hibernate
8 1 (5.26%) jQuery
8 1 (5.26%) Spring
Miscellaneous
1 4 (21.05%) Analytical Skills
2 2 (10.53%) Data Centre
3 1 (5.26%) Mobile App
Operating Systems
1 2 (10.53%) CentOS
1 2 (10.53%) Linux
1 2 (10.53%) Red Hat Enterprise Linux
Processes & Methodologies
1 6 (31.58%) Identity Management
1 6 (31.58%) Security Monitoring
2 4 (21.05%) Agile Software Development
2 4 (21.05%) BDD
2 4 (21.05%) CRM
2 4 (21.05%) Identity Access Management
2 4 (21.05%) IT Strategy
2 4 (21.05%) Project Management
2 4 (21.05%) SDLC
2 4 (21.05%) Service Design
2 4 (21.05%) SOA
2 4 (21.05%) TDD
2 4 (21.05%) Virtual Infrastructure
2 4 (21.05%) Waterfall
3 3 (15.79%) Data Integration
3 3 (15.79%) ETL
4 2 (10.53%) Configuration Management
4 2 (10.53%) Load Balancing
4 2 (10.53%) Migration
4 2 (10.53%) Performance Tuning
Programming Languages
1 9 (47.37%) C#
2 5 (26.32%) SQL
3 2 (10.53%) Bash Shell
3 2 (10.53%) Perl
3 2 (10.53%) PowerShell
4 1 (5.26%) Java
4 1 (5.26%) JavaScript
System Software
1 2 (10.53%) VMware Infrastructure
2 1 (5.26%) Active Directory
Systems Management
1 2 (10.53%) Nagios
1 2 (10.53%) Puppet
1 2 (10.53%) vCenter Server
Vendors
1 4 (21.05%) Microsoft
1 4 (21.05%) Salesforce.com
1 4 (21.05%) SAP
2 2 (10.53%) HP
2 2 (10.53%) Red Hat
2 2 (10.53%) VMware
3 1 (5.26%) Oracle