The following table provides summary statistics for contract job vacancies with a requirement for Log4j skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Log4j over the 3 months to 27 March 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.

3 months to
27 Mar 2017
Same period 2016 Same period 2015
Apache Log4j
UK
Rank 574 635 628
Rank change year-on-year +61 -7  
Contract jobs citing Log4j 9 5 3
As % of all contract IT jobs advertised in the UK 0.020% 0.009% 0.006%
As % of the Development Applications category 0.12% 0.065% 0.042%
Number of daily rates quoted 0 2 3
Median daily rate - £475 £275
Median daily rate % change year-on-year - +72.72%  
UK excluding London median daily rate - £325 £275
% change year-on-year - +18.18%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Log4j is in the development application skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for development application skills.

Contract Development Application Skills
UK
Contract job vacancies with a requirement for development application skills 7769 7745 7088
As % of all contract IT job vacancies advertised in the UK 17.30% 14.55% 13.12%
Number of daily rates quoted 5235 5162 4523
Median daily rate £438 £425 £400
Median daily rate % change year-on-year +2.94% +6.25%  
90% offered a daily rate of more than £310 £300 £290
10% offered a daily rate of more than £575 £550 £525
UK excluding London median daily rate £400 £375 £363
% change year-on-year +6.66% +3.44%  
Number of hourly rates quoted 176 188 137
Median hourly rate £42.50 £42.29 £37.50
Median hourly rate % change year-on-year +0.49% +12.77%  
90% offered a hourly rate of more than £31.35 £31.80 £28.97
10% offered a hourly rate of more than £52.50 £50.00 £50.00
UK excluding London median hourly rate £42.50 £42.00 £37.50
% change year-on-year +1.19% +12.00%  

Log4j
Job Vacancy Trend

The job posting trend of jobs advertised citing Log4j as a proportion of all contract or permanent IT jobs with a match in the Development Applications category.

Job vacancy trend for Log4j in the UK

Log4j
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Log4j.

Contractor daily rate trend for Log4j in the UK

Log4j
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing Log4j.

Contractor hourly rate trend for Log4j in the UK

Log4j
Top 4 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Log4j within the UK over the 3 months to 27 March 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
England +53 9 - -
Hampshire - 8 - -
South East - 8 - -
London +31 1 - -

Log4j
Top 30 Related IT Skills

For the 6 months to 27 March 2017, IT contractor jobs citing Log4j also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Log4j.

1 28 (100.00%) Java
1 28 (100.00%) Web Services
2 26 (92.86%) XML
3 21 (75.00%) JSP
4 20 (71.43%) Oracle
4 20 (71.43%) Linux
4 20 (71.43%) WebSphere
5 19 (67.86%) XSLT
5 19 (67.86%) WebLogic
6 18 (64.29%) JBoss
6 18 (64.29%) JMS
7 16 (57.14%) Ant
7 16 (57.14%) JavaScript
8 15 (53.57%) ATG
8 15 (53.57%) Servlets
8 15 (53.57%) Apache
8 15 (53.57%) E-Commerce
9 14 (50.00%) Oracle Database
10 13 (46.43%) Personalization
10 13 (46.43%) JDBC
10 13 (46.43%) J2EE
10 13 (46.43%) ATG Dynamo
11 12 (42.86%) Quality Management
11 12 (42.86%) Subversion
12 8 (28.57%) SQL
12 8 (28.57%) HTML
12 8 (28.57%) Tomcat
13 7 (25.00%) CSS
13 7 (25.00%) Agile Software Development
13 7 (25.00%) TDD

Log4j
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:

Application Platforms
1 20 (71.43%) WebSphere
2 19 (67.86%) WebLogic
3 18 (64.29%) JBoss
4 15 (53.57%) Apache
5 13 (46.43%) ATG Dynamo
6 8 (28.57%) Tomcat
7 5 (17.86%) WebLogic Portal
8 2 (7.14%) Jetty
Communications & Networking
1 2 (7.14%) Internet
Database & Business Intelligence
1 14 (50.00%) Oracle Database
2 5 (17.86%) DB2
2 5 (17.86%) SQL Server
3 3 (10.71%) MySQL
4 1 (3.57%) NoSQL
4 1 (3.57%) Oracle Reports
Development Applications
1 16 (57.14%) Ant
2 12 (42.86%) Subversion
3 4 (14.29%) Cucumber
3 4 (14.29%) IntelliJ
4 3 (10.71%) Git (software)
4 3 (10.71%) Jenkins
4 3 (10.71%) JMeter
5 2 (7.14%) JIRA
5 2 (7.14%) JUnit
5 2 (7.14%) Mercurial
5 2 (7.14%) Mockito
5 2 (7.14%) Selenium
5 2 (7.14%) Spock
5 2 (7.14%) TestNG
5 2 (7.14%) WebDriver
6 1 (3.57%) Apache Ivy
6 1 (3.57%) Bugzilla
6 1 (3.57%) CruiseControl
6 1 (3.57%) Eclipse
General
1 6 (21.43%) Finance
2 5 (17.86%) Back Office
2 5 (17.86%) Banking
3 2 (7.14%) Games
Job Titles
1 16 (57.14%) Developer
2 5 (17.86%) Consultant
2 5 (17.86%) Java Developer
2 5 (17.86%) Senior Developer
2 5 (17.86%) Technical Consultant
3 4 (14.29%) Infrastructure Engineer
4 2 (7.14%) Infrastructure Manager
4 2 (7.14%) SQL Developer
4 2 (7.14%) Tester
5 1 (3.57%) Automation Tester
5 1 (3.57%) Developer/Software Engineer
5 1 (3.57%) E-Commerce Developer
5 1 (3.57%) Java E-Commerce Developer
5 1 (3.57%) Java Software Engineer
5 1 (3.57%) Java WebSphere Developer
5 1 (3.57%) QA Tester
5 1 (3.57%) Resource Manager
5 1 (3.57%) Selenium Tester
5 1 (3.57%) Software Developer
5 1 (3.57%) Software Engineer
Libraries, Frameworks & Software Standards
1 28 (100.00%) Web Services
2 26 (92.86%) XML
3 21 (75.00%) JSP
4 19 (67.86%) XSLT
5 18 (64.29%) JMS
6 15 (53.57%) Servlets
7 13 (46.43%) J2EE
7 13 (46.43%) JDBC
8 8 (28.57%) HTML
9 7 (25.00%) CSS
10 5 (17.86%) Java EE
10 5 (17.86%) JAX-RPC
10 5 (17.86%) REST
10 5 (17.86%) SOAP
10 5 (17.86%) WSDL
10 5 (17.86%) XSL
11 2 (7.14%) JSON
11 2 (7.14%) JSTL
11 2 (7.14%) RESTful
11 2 (7.14%) Spring
Miscellaneous
1 1 (3.57%) Virtual Team
Operating Systems
1 20 (71.43%) Linux
2 5 (17.86%) Unix
3 4 (14.29%) Windows
3 4 (14.29%) Windows Server
Processes & Methodologies
1 15 (53.57%) E-Commerce
2 13 (46.43%) Personalization
3 12 (42.86%) Quality Management
4 7 (25.00%) Agile Software Development
4 7 (25.00%) TDD
5 6 (21.43%) Open Source
6 5 (17.86%) Change Management
6 5 (17.86%) Data Management
6 5 (17.86%) ITIL
6 5 (17.86%) Web Development
7 4 (14.29%) BDD
7 4 (14.29%) DevOps
7 4 (14.29%) PRINCE2
7 4 (14.29%) Problem Management
8 3 (10.71%) Performance Testing
8 3 (10.71%) Resource Management
9 2 (7.14%) Product Management
9 2 (7.14%) Regression Testing
9 2 (7.14%) Test Scripting
9 2 (7.14%) User Acceptance Testing
Programming Languages
1 28 (100.00%) Java
2 16 (57.14%) JavaScript
3 8 (28.57%) SQL
Qualifications
1 1 (3.57%) BC Cleared
1 1 (3.57%) SC Cleared
1 1 (3.57%) Security Cleared
Quality Assurance & Compliance
1 2 (7.14%) QA
2 1 (3.57%) Disclosure Scotland
Systems Management
1 1 (3.57%) SCCM
Vendors
1 20 (71.43%) Oracle
2 15 (53.57%) ATG
3 5 (17.86%) IBM
3 5 (17.86%) Misys
4 2 (7.14%) Demandware
4 2 (7.14%) Elastic Path
4 2 (7.14%) hybris
5 1 (3.57%) Microsoft